Stm32 Ll I2c Example

This tutorial shows how to use the SPI interface of the STM32 devices using the STM32CubeMX HAL API. Examples => Small variations within family: spi_ll_stm32. We will be looking at LCD menu, reading 2 Pots voltage level, buzzer alarm set , button read, the board temperature, PC temperature and time by using Python UI. In this part, I'll show how to connect to an HDC1080 te لغات کلیدی: stm32 tutorial, stm32f0 i2c, stm32 i2c tutorial, hdc1080, stm32cubemx. This tutorial shows how to use the I2C interface on the STM32 devices. The HID I2C driver is available on all client SKUs of Windows and is included in WinPE. Instead, this tutorial will walk through using the ‘I2C’ peripheral on an STM32 chip to communicate with a cheap DS3231 RTC module. There are also several other code libraries and example programs available for all the STM32 variants. Running I2C or SPI off-board, even for relatively short distances, can start to result in bit errors at higher speeds or in the presence of interference. Åìó ñóæäåíî âíîâü ñòîëêíóòüñÿ ñî çëåéøèì. I’ve made a very detailed tutorial on how to get I2C working on Arduino in conjunction with the MPU-6050 not long ago. PCF8574 can be used as a port extender, to which LCD will be connected. Mouser offers inventory, pricing, & datasheets for Engineering Tools. Some I2C devices, like external flash for example, or complex devices like laser sensors, use 2 bytes registers. my mistake is using adress (0x53 is true) I read wrong it,but now problem is HAL_I2C_Mem_Read(&hi2c1,ADXL345_I2C_Adress1,DATAXL_INC,I2C_MEMADD_SIZE_8BIT,out,2,1000); I want to get all angles at the same time with multiple bytes read , is it true to use DATAXL_INC. V UART I2C SPI Click Dusan Poluga click. Sure some of that stuff is not useful to you, but thats the cost of ease of use. By default (nothing attached to A0) the address is hex 0x62. erayurtseven. If you have the older non-STEMMA version of the OLED,. KY - White Leghorn Pullets). Click to download files. The circuit designers and developers needs different measuring equipments like digital multimeter, CRO, DSO, frequency counter, logic analyser etc for testing their circuits. The circuit designers and developers needs different measuring equipments like digital multimeter, CRO, DSO, frequency counter, logic analyser etc for testing their circuits. Using the I2C device library is actually very simple, especially if you're using the Arduino IDE. Maybe the I2C between the STM32 and the gyro is ok, but the interface from which you get the data is not working properly? \$\endgroup\$ – CapnJJ May 29 '18 at 17:05 \$\begingroup\$ @CapnJJ while debuging i look at my terminal) \$\endgroup\$ – Denisok May 29 '18 at 17:36. > Judging from what I have seen (examples regarding I2C and *duino projects > regarding I2C), it requires somewhat different approach due to the > "reset" part in its initialization. lds-mcpu = cortex-m4-mthumb-mfloat-abi = soft-Wl,--start-group Debug. I added method to read single byte, multi bytes, write single byte, write multi bytes, write/read single byte from/to register which has 16-bit address size. Stm32 spi interrupt example. stm32 / STM32F4xxxx / LinkerScripts / STM32F407VG_flash. I suggest you try with this one. This would expose us to most of the interfaces of. For example in read function you have: /* -> Lets ask for register’s address */ WriteBuffer(I2C_ADDRESS, &RegAddr, 1); This means you ask device whose address is I2C_ADDRESS for the content of the RegAddr. 4mm x 3mm) Weight (with 3x4 headers & terminal block): 9grams; Connection Diagram. The library comes with examples for some types of USB devices. No libraries are required. The HID I2C driver is available on all client SKUs of Windows and is included in WinPE. This screen controlled by a microcontroller SSD1306 uses the I2C bus can communicate with an Arduino, an ESP8266 and even a mini-PC (Raspberry Pi, Orange Pi …). In case of SPI EEPROM, for example, there is a status register always available. Ok, now I'll tell a bit about what I'm talking about. Hey buddy, I’ve never actually managed to get the STM32F0xx I2C to work without a device because it won’t go through the steps of having flags cleared etc. Finally you can free the resources used by the command link with i2c_cmd_link_delete(cmd). The DMA will write to GPIO output data register and will overwrite all unused bits. WiFiMCU is developed based on EMW3165. 2018: шановний ReAl з форуму replace допоміг зі створенням вже оновленої версії цієї бібліотеки. Thus, only 112 addresses can be used. If you need help uploading the sketch to your Arduino, their site has lots of helpful information. STMicroelectronics licenses the ARM Processor IP from ARM Holdings. This guide is targeted for those with a basic understanding of micro-controllers and their operation. I’ve made a very detailed tutorial on how to get I2C working on Arduino in conjunction with the MPU-6050 not long ago. PCF8574 can be used as a port extender, to which LCD will be connected. We can do this by using the I2C scanner code. You can mix READ MORE. c (F1 series) stm32f3x_ll_clock. Esp8266 stm32 example. SHT20 I2C Temperature & Humidity Sensor (Waterproof Probe) SKU: SEN0227 Introduction This is a SHT20 I2C temperature & humidity sensor with waterproof probe. Here2 mimics the i2c compass, it doesn’t actually present the sensor directly. Specifically, I will talk about a widely-available board labeled ZS-042 , which includes 4KB of EEPROM on its I2C bus and space for a “coin cell” battery to provide several years of backup power. 5" x 1" x 0. If video is your preferred medium, check out this. A github repository will be the best. bin to the flash on the device, and then perform a verification after writing is finished. Since, Slave Address in I2C Communication is very important, you have to know it beforehand. elf-Wl,-gc-sections--specs = nano. There’s no option for PPD42 particle sensor, so you’d have to purchase separately for example on Aliexpress ($7. Elastic Notes: STM32 + I2C OLED SSD1306 + u8glib + CubeMX: If you think, that title of this post consists of all possible random words, you are wrong:) This is what I've try to chain right during couple of days, but it was not so simple, as I thought at first time!. This tutorial shows how to use the I2C interface on the STM32 devices. In this example 2000 bytes will be transfered using DMA, Transmit Half Complete and Transmit Complete interrupts achieving the best performance. ld" a makefile - "Makefile" an OpenOcd configratrion file - "openocd. You can control up to 16 LED strips. See the chapter 6. Today I am going to interface LCD to STM32 using an I2C device (PCF8574). For accessing these devices, I2C use 7-bit address. So in programming these clock frequencies, here are the steps you should take: Figure out the speed of the input clock to the I2C module. bsec_iot_example. > Judging from what I have seen (examples regarding I2C and *duino projects > regarding I2C), it requires somewhat different approach due to the > "reset" part in its initialization. Here is a screenshot for what it looks like inside the interface where we configure the timer module for example. STM32 ADC Interrupt Example. usbserial-ftCYPMYJ -e -w -v somefile. 2 STM32Cube code generation using Low Layer drivers For STM32L1, STM32L4, STM32L4+, STM32F2, STM32F4 and STM32F7 Series, STM32CubeMX allows generating peripheral initialization code based either on the peripheral HAL driver or on the peripheral Low Layer (LL) driver. These displays are small, only about 1" diameter, but very readable due to the high contrast of an OLED display. Hey buddy, I’ve never actually managed to get the STM32F0xx I2C to work without a device because it won’t go through the steps of having flags cleared etc. bin This will pre-erase flash, write somefile. If your project requires a sophisticated 32-bit microcontroller then I highly recommend the STM32 series. No libraries are required. Very soon you will see a real example of application of this bus (like the SPI bus) with a managed driver I developed for an NFC chip from NXP !. com+Library and examples for UART I2C SPI Click mikroBasic PRO for ARM UART_I2C_SPI_CEC_M4 UART_I2C_SPI_CEC_. STM32 Primer - A minimal example. You could just ground them all, but we'll be wiring them so that we can drop in a higher-capacity device later in the tutorial. There’s no option for PPD42 particle sensor, so you’d have to purchase separately for example on Aliexpress ($7. USB to FIFO USB to SPI. The required development. I learnt that synchronous devices such as SPI or I2C use a master clock to synchronize data exchange: for example with SPI, the master starts a clock, the devices agree on clock polarity and phase and "data is set up on a clock edge (for example,rising one) and sampled on the other (i. to make sure the I2C bus is not busy before attempting a transmission) If all of this makes absolutely no sense to you, I suggest to read up at least a little bit on the basics of the I2C protocol as this would require its own tutorial. Describe the bug i2c_ll_stm32_v1 driver gets stuck in busy wait during i2c transfer To Reproduce I use stm32_min_dev board with MPU6050 attached to I2C_1. The products and example are pretty good! Oct 10, 2013 #7. - Enable i2c interrupt There is a lot of housekeeping its doing. Solar observation – sunspots and solar transits. If you haven't read my previous post about I2C go check that out HERE. However I am finding that the I2C does not send the STOP condition at the end of the DMA transaction unless I set the command bit from the DMA callback function. I2C Hub 1 to 6 Expansion Unit (TCA9548A)DescriptionDescriptionPaHUB, is a expander for I2C GROVE PORTA(red port on M5Core). This is because LCD runs at 5v while STM32 runs at 3. my mistake is using adress (0x53 is true) I read wrong it,but now problem is HAL_I2C_Mem_Read(&hi2c1,ADXL345_I2C_Adress1,DATAXL_INC,I2C_MEMADD_SIZE_8BIT,out,2,1000); I want to get all angles at the same time with multiple bytes read , is it true to use DATAXL_INC. Because the I2C interface is for 'writing' to the display only, you'll still have to buffer the entire 512 byte frame in the microcontroller RAM - you can't read data from the OLED (even though I2C is a bidirectional protocol). んでそれにならって書くとこんな感じ. I2C Communication Address Settings. The project uses the STmicroelectronics USB library for STM32. Including Timers, ADC, USART, I2C, USB, DAC, Comparators, etc. I also use the stm32 discovery board. Hardware CS (NSS) management must be disabled and user shall manually control CS using GPIO output. Open a sample sketch and compile it. 1 - I2C/Output/I2C. But there's a slight problem with the code in it. Here is a screenshot for what it looks like inside the interface where we configure the timer module for example. It takes a whole lot of efforts to interface LCD using conventional methods, but by using I2C, we can do it really easy. Stm32 adc example code keil. ino folder since I thought it was a modified version. The 9-pin interface allows the exchange of data between a connected system and the card controller. Here is a bit of a look at how to use the ADC on the STM32 for simple applications. Give it a shot!. It allows you to perform simple tasks. 0 as well as IEEE 802. Moreover, since they ‘clip’ directly onto the I2C-bus without any additional external interfacing, they allow a prototype system to be. 0 (Arduino Compatible) - DFRobot All orders placed will be shipped out as usual, delivery times are expected to be affected due to COVID-19. Include your state for easier searchability. Åìó ñóæäåíî âíîâü ñòîëêíóòüñÿ ñî çëåéøèì. If you haven't read my previous post about I2C go check that out HERE. It is advisable to use 400kHz frequency for the I2C. I'd like to control 7 10-led-bargrah to display some visual effects. stm32的硬件i2c不好用,很多人在开发i2c的过程中,使用的是软件i2c进行调试。其实这么多年的改进,以及st公司库函数的不断升级,现在可以比较方便的调用i2c,不过cubemx的函数生成存在小问. STM32F0 I2C Master Mode Example In HAL library, there are several functions that provide us an easy solution to program I2C communication, particularly for Master mode. All the examples in this library assumes the default address of the I2C as 0x27. Before you begin. which we’ll use in the examples studied later on in this lecture. In this tutorial we’ll take a look at the I2C communication protocol with the ESP32 using Arduino IDE: how to choose I2C pins, connect multiple I2C devices to the same bus and how to use the two I2C bus interfaces. NET Micro Framework enables you to use this bus very easily with a single class and the concept of read / write I2C "transactions" in order to perform the communication in a single "shot". 하지만 개발보드가 있어야 되기에 OpenCM9. 1 - I2C/Output/I2C. I have connected PB6,7 (I2C1) to a LIS3LV02DQ 3-axis accelerometer, which has an I2C interface. Embedded ARM Part 0: STM32 programming with libopencm3 Tue, Sep 11, 2018 Companion code for this post available on Github. org ) in CubeMX - Modify settings of AC6 project (parallel build, ) - Code for I2C bus,. STM32 LL Library STM32 Low Level (LL) library is a new library for programming the STM32 series. After a lot of exploring I decided what better way to learn ARM is to make a development board. Arduino for STM32. Locate the corresponding “ssd1306_128x64_i2c_STM32” project in the “Examples for Generic STM32F103C Series” menu: As you noticed it from the project title, this example is aimed at the 128×64 version of the display, so we will have to change that to match our screen resolution of 128×32 pixels. The HID I2C driver is available on all client SKUs of Windows and is included in WinPE. The STM32 provides serial connectivity through various interfaces including UART, I2C, SPI, and USB. Find below some basic STM32 (STM32F103C8) Microcontroller based tutorials and sample projects to learn and work with STM32F103C8 board. stm32 / STM32F4xxxx / LinkerScripts / STM32F407VG_flash. All embedded software utilities come with a full set of examples. After some email for I2C library for HAL, I’ve made it. If you think, that title of this post consists of all possible random words, you are wrong:) This is what I've been trying to make work correctly during the last days!Actually, the task is not too hard, but only when you've got rid of. That is implemented with a "Wired-OR" open-drain structure. c i2c_ll_stm32_v1. c – Don’t copy this bsec_iot_example. Solar observation – sunspots and solar transits. You'll see several I2C sensors on the market that will generate an external signal (that you would tie to your Interrupt pin) when new data is available, so this was just an example to show you how could generate that same type of signal to mimic some of the typical I2C sensors on the market. You will find all other Examples for the Blue pill board under Up button beneath tools option>hardware>Arduino_STM32. The LL and HAL are complementary and cover a wide range of applications requirements. This bit signals whether the device is ready to proceed with the next byte. i2c samplePosted by nobody on December 9, 2004When will the i2c driver used on the web server be available? i2c samplePosted by richardbarry on December 9, 2004There is already a link to the source code on the WEB site. Driver may in oki c3300 for Windows Download. SDA1 et SCL1 ne posent aucun problème, par contre je nai pas encore trouvé le moyen dactiver SDA2/SCL2. It is advisable to use 400kHz frequency for the I2C. STM32F0 I2C Master Mode Example. Going over the basic problems of implementing an I2C communication, you'll be on the right path to never have problems with I2C ever again, whether you're a firmware developer programming a multi-slave device, or a hardware engineer coming up with a brand new board!. В качестве подопытного устройства мы возьмём микросхему eeprom — at24c32, которая установлена в модуле с часовой микросхемой ds3231 и также в часовом модуле с. So here I am starting I2C tutorial in STM32. 5inch OLED Display Module 128x128 16 Gray Scale SPI/I2C Interface SSD1327 Driver Raspberry Pi/Jetson Nano/Arduino/STM32 Examples Provided: Amazon. В качестве подопытного устройства мы возьмём микросхему eeprom — at24c32, которая установлена в модуле с часовой микросхемой ds3231 и также в часовом модуле с. The default is 100Kb/sec. RAM size is roughly the amount of registers you can use freely, like variables in high-level language programming (C++, Java, etc. Stm32 I2c Dma. Notice: it should be '3' instead of '2' at 8:07; 'left' instead of 'right' at 7:24 STM32F0 I2C Tutorial based on CubeMx and HAL library. Library is developed and tested with Stm32F411-discovery and the given example. 145 -> I2C device found at address 0x10 16:40:09. Note that, your code will stop working as soon as you restart or reset the blue pill board. In Part II we'll use these basic functions to speak with an example device — an MMA8653 accelerometer — and look to where we can go next. The electrical integrity problems with I2C and SPI can be alleviated by using differential signals, as is the case with RS422/485. By the end of this tutorial you’ll have a fully functioning IoT example that reads accelerometer sensor data in Direct Memory Access (DMA) and Polling modes using the I2C API of the MediaTek LinkIt SDK v3. The Intel. The mraa module can be built with python3 or python2. my mistake is using adress (0x53 is true) I read wrong it,but now problem is HAL_I2C_Mem_Read(&hi2c1,ADXL345_I2C_Adress1,DATAXL_INC,I2C_MEMADD_SIZE_8BIT,out,2,1000); I want to get all angles at the same time with multiple bytes read , is it true to use DATAXL_INC. Пример реализации I2C Slave на STM32. However, I didn’t demo 24Cxx series EEPROMs because codes for these memories are widely available online…. Example on how to run I2C on STM32 Nucleo (STM32F104RE with Arduino TinkerKit connected to it) Hi! Being new to the embedded World, my first project consists of running som Arduino peripherals connected to an STM32 Nucleo. Using the I2C device library is actually very simple, especially if you're using the Arduino IDE. 2 STM32Cube code generation using Low Layer drivers For STM32L1, STM32L4, STM32L4+, STM32F2, STM32F4 and STM32F7 Series, STM32CubeMX allows generating peripheral initialization code based either on the peripheral HAL driver or on the peripheral Low Layer (LL) driver. Most I2C devices use 8 bits sized internal registers. Simulink Coder Support Package for STMicroelectronics Nucleo boards enables you to use the I2C interface to communicate with I2C based devices. Can anyone give me an example code to config, init and send and receive data through the I2C bus. In this tutorial, I will only mention the normal communication without using interrupts and DMA. KY - White Leghorn Pullets). It gives a detailed overview of the functions and available accepted parameters to those functions in the form of defines or typedefs etc. I ported my old for F4 to HAL based libraries for F0/F4/F7 series. h is the header file for i2c. Home / Tag: stm32 i2c hal example. I regularly every week or so with either some explanations about the peripherals or mostly example codes. KY - White Leghorn Pullets). i was able to setup a fully working STM32CubeIDE project. In this example, we'll use 4. You can find this OLED screen at Adafruit or Sparkfun for example. For example in read function you have: /* -> Lets ask for register’s address */ WriteBuffer(I2C_ADDRESS, &RegAddr, 1); This means you ask device whose address is I2C_ADDRESS for the content of the RegAddr. I2C Design Mathematics: Capacitance and Resistance June 22, 2018 by Mark Hughes Learn about I 2 C and some of the design challenges that comes with it, including logic thresholds, factors that affect capacitance, and minimum and maximum pull-up resistance. Can anyone give me an example code to config, init and send and receive data through the I2C bus. This is because LCD runs at 5v while STM32 runs at 3. The required development. There are also several other code libraries and example programs available for all the STM32 variants. Help configuring the I2C Bit-Banging example code Hello everyone, I recently downloaded an example code from the Microchip web to configure my PIC32MZ0512EFE144 for a bit-bang I2C application due to the silicon errata of this PIC which makes it difficult to implement the I2C communication via hardware. If you haven't read my previous post about I2C go check that out HERE. - Mon Jun 22, 2015 11:02 am #21204 First - in Sketch Buffet I had put the Adafruit_MCP23017. We can do this by using the I2C scanner code. The read operation is slightly more complex. The circuit designers and developers needs different measuring equipments like digital multimeter, CRO, DSO, frequency counter, logic analyser etc for testing their circuits. Example¶ Here are some examples of how to use mraa, common convention is to import mraa as mraa to keep it short but feel free to import it globally! As a general rule the API is very similar to the C++ API so there are only basic examples to show quick usage. 0 at least for STM32F1 v1. specs-TC: \ Users \ Rhys \ AppData \ Local \ VisualGDB \ EmbeddedBSPs \ arm-eabi \ com. Data on the I2C bus is transferred in 8-bit packets (bytes). So here I am starting I2C tutorial in STM32. This week’s tip we’ll go into more detail about I2C communication, particularly using the command line i2cset and i2cget tools. I2C Interface with communication speeds up to 1 MHz and two user selectable addresses I bought the following module If you’re using an Raspberry Pi simply connect the VIN pin to the 3v3 voltage pin, GND to ground, SCL1 (D5) to I2C Clock (Analog 5) and SDA1 (D3) to I2C Data (Analog 4). As with most microcontrollers, almost all STM32 parts come equipped with 1 (or more!) I2C interfaces. > > Can someone provide code for connecting that device to STM32 uC's (I'm > using STM C libs and uVision 4), as I am perplexed with the part where I > should set. Since, Slave Address in I2C Communication is very important, you have to know it beforehand. Moreover, since they ‘clip’ directly onto the I2C-bus without any additional external interfacing, they allow a prototype system to be. 66” Across) Operating Voltage: 3. Get Started. 145 -> I2C device found at address 0x4A 16:40:09. After some email for I2C library for HAL, I’ve made it. STM32 HAL库 UART使用printf // UART handle * @note This example shows a simple way to report transfer error, and you can * add your own implementation. When I go to Project > Settings > Advanced Settings in CubeMX, I see the peripherals listed, and there is a pulldown next to each one which only has one option, HAL. Click to download files. I2C DC Motor control on the STM32F4-Discovery Using MikroC for ARM. Since a few month I played around with an Arduino board and some nice I2C components, then I was interested in programming Cortex M3 cpu, and I bought a STM32 discovery card. If you haven't read my previous post about I2C go check that out HERE. The purpose of this guide is to get you started with the STM32 and its peripherals. R1 works as protection resistor in case STM32 MOSI pin somehow enters into push-pull output. All embedded software utilities come with a full set of examples. V UART I2C SPI Click Dusan Poluga click. Including Timers, ADC, USART, I2C, USB, DAC, Comparators, etc. I2C 활용하는 전체순서. c – Don’t copy this bsec_iot_example. We will use a third STM32 board together with Analyzer2Go to look into the I2C signals. Library Read more about new HAL libraries Features Supports up to 4 I2C peripherals Supports. HAL_I2C_Slave_Receive_IT() is called to: - Check i2c peripheral has been setup - Set up HAL internal locks and mode tracking, etc. This tutorial is the second in a series describing the use of the I2C standard peripheral communication protocol feature of the LinkIt 7687 HDK by SAC. Can anyone give me an example code to config, init and send and receive data through the I2C bus. However, I didn’t demo 24Cxx series EEPROMs because codes for these memories are widely available online…. 1 (below) is 00101111 (binary) which is 0X2F in hexadecimal. c (F3 series) … Lot of HAL/LL. After I configure the i2c I try to send a start but it gets stuck waiting for the flags: while (!((I2C_SR1(I2C1) & I2C_SR1_SB) & (I2C_SR2(I2C1) & (I2C_SR2_MSL | I2C_SR2_BUSY)))); Some help would be very good for me. Optional interfaces: SPI (default), or I2C, configured via onboard resistor Brings control pins Compatible with host boards like Arduino/STM32 Comes with development resources and manual (examples Compatible with Raspberry Pi/Jetson Nano/Arduino/STM32). You'll need to choose a username for the site, (I2C, LEDs, STM32). Step one consists in selecting the STM32 microcontroller that matches the required set of peripherals. You also need to tell the decoder which pin/channel is which. Mikromedia Plus for STM32F7 is a compact development system with lots of on-board peripherals which allow development of devices with multimedia contents. They offer an optimum implementation of typical use cases of the peripheral features and configuration sequences. I am working on adapting the SPI DMA-basic code for use with the I2C. Browse other questions tagged i2c stm32 or ask your own question. Since the STM32 has 16bit ports. This basic example is the combination of some previous videos of STM32. RAM size is roughly the amount of registers you can use freely, like variables in high-level language programming (C++, Java, etc. which we’ll use in the examples studied later on in this lecture. It's said to learn something, the best way is to make it. There’s an stm32 in between, so you’ll have to write a firmware for that to access the full icm20948, or ask Hex to give you a firmware that does that. Here is a screenshot for what it looks like inside the interface where we configure the timer module for example. Some I2C devices, like external flash for example, or complex devices like laser sensors, use 2 bytes registers. c (I2C V1: F1/F2/F4/L1) i2c_ll_stm32_v2. _1 means use 128 bytes for display, _2 means use 256, _f means store all pixels. U8blib - is cool library to manage with various monochrome displays. Simulink Coder Support Package for STMicroelectronics Nucleo boards enables you to use the I2C interface to communicate with I2C based devices. Application Note the FT232H and FT201X devicesUSB to I2C Example using Version 1. It was sent in by Alf VK2YAC (thanks Alf!). This example involves the following five files: an application source file - "main. Sure some of that stuff is not useful to you, but thats the cost of ease of use. This library allows you to use, in some relatively easy way, the USB capabilities of the STM32 line, including USB client (the one we use for this project), USB host and USB On-The-Go, were available. I2Cについては以下の記事を参考にしました。 \Repository\STM32Cube_FW_F4_V1. Theoretically, 7-bit address space allows 128 addresses, however some addresses are reserved for special purpose. Since the STM32 has 16bit ports. 0 (Arduino Compatible) - DFRobot All orders placed will be shipped out as usual, delivery times are expected to be affected due to COVID-19. The LL and HAL are complementary and cover a wide range of applications requirements. I2C Design Mathematics: Capacitance and Resistance June 22, 2018 by Mark Hughes Learn about I 2 C and some of the design challenges that comes with it, including logic thresholds, factors that affect capacitance, and minimum and maximum pull-up resistance. As with most microcontrollers, almost all STM32 parts come equipped with 1 (or more!) I2C interfaces. Problem exist only with hard I2C driver on stm32. The idea was to build a dirt-cheap I2c peripheral, suitable for use with my ESP8266 code but now, with improved access to i2c on various boards such as the Orange Pi Zero (2 i2c channels), FriendlyArm NEO, M3, Raspberry Pi and others (see blog entry on i2c) it makes sense to look at this for general use – and with a widened range of capabilities. Stm32 dac example. But, on Linux I had no luck with automatic reset. The mraa module can be built with python3 or python2. Very soon you will see a real example of application of this bus (like the SPI bus) with a managed driver I developed for an NFC chip from NXP !. See full list on waveshare. Browse other questions tagged i2c stm32 or ask your own question. STM32 half-duplex SPI connection. This guide is targeted for those with a basic understanding of micro-controllers and their operation. Hi Guys, I’ll try to use SSD1306 I2C library but it doesn’t show anything, on my avr same display shows adafruit samples, but here after I added library from this post, choose example I2C STM32, nothing happen, on both I2C ports, is anything else to set if I want to use this library and example code?. stm32f4 ll i2c 설정 및 코드 작성 프로젝트입니다. Tiva Tutorials - Tutorials about the Tiva ARM-M4 MCU from Texas Instruments, mainly the TM4C123 launchpad. It needs two lines, the SDA (data) and the SCL (clock). On Windows, only the port is different (COMx). So here I am starting I2C tutorial in STM32. It is a graphical tool that allows configuring STM32 microcontrollers very easily and generating the corresponding initialization C code through a step-by-step process. In this part, I'll show how to connect to an HDC1080 I will show another example with DMA and I2C to Using STM32 DMA and I2C to read data from MPU6050 Then I tried to look back at the code for Arduino and. The new STM32F405 Feather (video) that we designed runs CircuitPython at a blistering 168MHz – our fastest CircuitPython board ever!. After some email for I2C library for HAL, I’ve made it. A block diagram of the SD card is shown in Fig. Including Timers, ADC, USART, I2C, USB, DAC, Comparators, etc. They cover: Introduction to Cortex-M and STM32 microcontrollers. After a lot of exploring I decided what better way to learn ARM is to make a development board. Unfortunately, the examples distributed with the STM32L1xx Standard Peripheral Library are deeply interwoven with the commercial windows-based IDEs available for STM32 code development and are challenging to extract and use in an Eclips. For example, TWOG can use an external IMU or IR sensors, and also needs an external GPS. Thus, only 112 addresses can be used. The 36MHz clock comes from the STM32 MCU using the STM32 MCO/PA8 pin (pin 29), that is connected to the CPLD GCLK1 (pin 14) pin. I'll generate a diff and post a link to the file, if that's ok. Stm32 i2c hal \ Enter a brief summary of what you are selling. SHT20 I2C Temperature & Humidity Sensor (Waterproof Probe) SKU: SEN0227 Introduction This is a SHT20 I2C temperature & humidity sensor with waterproof probe. Solar observation – sunspots and solar transits. You also need to tell the decoder which pin/channel is which. Futhermore, when the I2C device finish, it come back on line at random time, including in the middle of any I2C activity. Library Read more about new HAL libraries Features Supports up to 4 I2C peripherals Supports. This is another great White OLED display without extra backlight and save the power. The HID I2C driver is available on all client SKUs of Windows and is included in WinPE. STM32 Tutorials. This is a quick tutorial for our 128x64 and 128x32 pixel monochrome OLED displays. I2C, on the other hand, in its most general form, is bidirectional on both pins. Ïîòåðïåâ ïîðàæåíèå íà Çåìëå, ñèëû Çåîíà îòñòóïàþò. Àìóðî Ðýé óçíàåò áîëüøå î ñâîèõ Íüþòàéï-ñïîñîáíîñòÿõ è ïûòàåòñÿ èñïîëüçîâàòü èõ. ld" a makefile - "Makefile" an OpenOcd configratrion file - "openocd. This is another great White OLED display without extra backlight and save the power. Most I2C devices use 8 bits sized internal registers. I know it's early because we still need to go through some basic things before jumping to I2C but the problem is LCD. This allows RS485 to transmit data at high (multiple megabit. I2C_GetFlagStatus to check for other conditions (e. file and the write binary bash script are all the same. The idea was to build a dirt-cheap I2c peripheral, suitable for use with my ESP8266 code but now, with improved access to i2c on various boards such as the Orange Pi Zero (2 i2c channels), FriendlyArm NEO, M3, Raspberry Pi and others (see blog entry on i2c) it makes sense to look at this for general use – and with a widened range of capabilities. I regularly every week or so with either some explanations about the peripherals or mostly example codes. んでそれにならって書くとこんな感じ. For the C/C++ examples, we'll be using the wiringPi library to interface with these buses For the Python examples, we'll be using spidev for SPI and smbus for I2C. I added method to read single byte, multi bytes, write single byte, write multi bytes, write/read single byte from/to register which has 16-bit address size. c (I2C V2: F0/F3/F7/L4) Important heterogeneity: stm32_ll_clock. I’ve made a very detailed tutorial on how to get I2C working on Arduino in conjunction with the MPU-6050 not long ago. You can control up to 16 LED strips. We will configure the SPI in several different modes, show how they affect the generated signal and setup the double-buffered mode to demonstrate continuous uninterrupted mode. Including Timers, ADC, USART, I2C, USB, DAC, Comparators, etc. Hardware tools: USB analyzer (CATC, Beagle), I2C and SPI Aardvark analyzer, oscilloscope, signal generator. This is because LCD runs at 5v while STM32 runs at 3. Arm Development #2 – STM32 Cortex-M0 I2C Tutorial using ADS1115 Analog to Digital IC – Keil & CubeMX The second ARM Tutorial is progressively more difficult as we tackle I2C. All embedded software utilities come with a full set of examples. I2C DC Motor control on the STM32F4-Discovery Using MikroC for ARM. I regularly every week or so with either some explanations about the peripherals or mostly example codes. : FTDI# 352. The Raspberry Pi Camera module interfaces with the Host processor via a 2-lane CSI interface through the Moto High Speed Bridge. In Part II we'll use these basic functions to speak with an example device — an MMA8653 accelerometer — and look to where we can go next. By default (nothing attached to A0) the address is hex 0x62. 96 ” screen is capable of displaying 128×64 pixels. If you connect those to LCD data pin, 5v coming out from the LCD will damage the MCU. Arduino for STM32. I2C Hub 1 to 6 Expansion Unit (TCA9548A)DescriptionDescriptionPaHUB, is a expander for I2C GROVE PORTA(red port on M5Core). You do mention though that your oscilloscope is set up as a slave so I assume that it automatically responds to the corresponding I2C commands. The LL and HAL are complementary and cover a wide range of applications requirements. I2C, on the other hand, in its most general form, is bidirectional on both pins. c (F3 series) … Lot of HAL/LL. 2 Comments. Milliseconds based delay is done using systick timer which makes interrupts every 1ms generated by HAL library. - Enable i2c interrupt There is a lot of housekeeping its doing. Here2 mimics the i2c compass, it doesn’t actually present the sensor directly. 1 - I2C/Output/I2C. Stm32f407zgt6 Stm32f407 Stm32 Arm Cortex-m4 Development Board + Pl2303 Usb Uart Module = Open407z Standard , Find Complete Details about Stm32f407zgt6 Stm32f407 Stm32 Arm Cortex-m4 Development Board + Pl2303 Usb Uart Module = Open407z Standard,Open407z Standard,Open407z Standard Stm32f407zgt6 Stm32f407 Stm32 Arm Cortex-m4,Open407z Standard Development Board from Microcontrollers, Standard and. STM32F0 I2C Master Mode Example In HAL library, there are several functions that provide us an easy solution to program I2C communication, particularly for Master mode. Notice: it should be '3' instead of '2' at 8:07; 'left' instead of 'right' at 7:24 STM32F0 I2C Tutorial based on CubeMx and HAL library. Elastic Notes: STM32 + I2C OLED SSD1306 + u8glib + CubeMX: If you think, that title of this post consists of all possible random words, you are wrong:) This is what I've try to chain right during couple of days, but it was not so simple, as I thought at first time!. It should be easy now to interface any I2C device with STM8…. Update 4 (Nov/2018): Dedicated support team is assigned to address student's Q/A. sudo vim /etc/modules i2c-dev. bin to the flash on the device, and then perform a verification after writing is finished. Give it a shot!. HAL_I2C_Slave_Receive_IT() is called to: - Check i2c peripheral has been setup - Set up HAL internal locks and mode tracking, etc. I have been trying to make a slave I2C device communicate with my STM32F0 board, with no success. This week’s tip we’ll go into more detail about I2C communication, particularly using the command line i2cset and i2cget tools. Library Read more about new HAL libraries Features Supports up to 4 I2C peripherals Supports. However, each byte must be followed by an Acknowledge bit. STM32 HAL库 UART使用printf // UART handle * @note This example shows a simple way to report transfer error, and you can * add your own implementation. STM32 ADC Interrupt Example. Some I2C devices, like external flash for example, or complex devices like laser sensors, use 2 bytes registers. STM32SnippetsL0 - Example Code snippets covering STM32 L0 serie, STM32SnippetsL0, STMicroelectronics. 2013-11-02T11:47:46 dongs> ? 2013-11-02T11:47:56 dongs> which cortex? 2013. 0 as well as IEEE 802. "Îäíîãîäè÷íàÿ âîéíà" ïîäõîäèò ê êîíöó. In particular, this guide focuses on the STM32L053R8T6 used on the Nucleo for STM32L0 evaluation board. I/O pins of some important peripherals like ADC, PWM, I2C, SPI, USART should be free for other purposes. By default (nothing attached to A0) the address is hex 0x62. 13 I2C EEPROM サンプル:Example/7. I am new to the STM32 and the Standard Peripheral library, so it's quite likely the mistake I am making in getting I2C to work is simple, but I can't see it. Specifically, I will talk about a widely-available board labeled ZS-042 , which includes 4KB of EEPROM on its I2C bus and space for a “coin cell” battery to provide several years of backup power. to make sure the I2C bus is not busy before attempting a transmission) If all of this makes absolutely no sense to you, I suggest to read up at least a little bit on the basics of the I2C protocol as this would require its own tutorial. Hi There, Sports Fans, I just finished porting Arthur Liberman's fast SH1106 library (original thread at arduino. 145 -> I2C device found at address 0x10 16:40:09. Go to File - New - Project. It also features a prototype area with all microcontroller signals near it, giving the customer an easy way to implement his own schematics and add-ons. In this example 2000 bytes will be transfered using DMA, Transmit Half Complete and Transmit Complete interrupts achieving the best performance. Best Regards, Tarek BOUCHKATI. 5inch Oled Display Module Ssd1327 128x128 16-bit Grey Level Spi/i2c Interface,With Examples(raspberry Pi/ard/stm32),1. The motors will work and they will turn, but there may be too much jitter – especially for mechanical servo motors which will overheat. STM32duino IV. February 13, 2017 February 13, 2017 livearmada debug, devkit, i2c, mcu Leave a comment Welcome to the blog post I wish I had read two days ago. I2c Represents a communications channel to a device on an inter-integrated circuit I 2 C bus. Driver may in oki c3300 for Windows Download. Hey buddy, I’ve never actually managed to get the STM32F0xx I2C to work without a device because it won’t go through the steps of having flags cleared etc. I/O pins of some important peripherals like ADC, PWM, I2C, SPI, USART should be free for other purposes. You can calculate the slave address by referring to the data sheet of PCF8574 IC and also the schematic of the PCF8574 I2C LCD Module. Example // Set address which will be used by Master to transmit data to I2C1_Master_Slave_Addr_Set(0x0A, _I2C_DIR_MASTER_TRANSMIT); Notes: I²C library routines require you to specify the module you want to use. I/O pins of some important peripherals like ADC, PWM, I2C, SPI, USART should be free for other. 5" x 1" x 0. STM32 Primer - A minimal example. There is an LCD I2C master library included in the Arduino IDE. The I2C protocol is used for the communication of different ICs on a board with the micro-controller, for example EEPROMs, ADCs or GPIO expanders. The DMA will write to GPIO output data register and will overwrite all unused bits. This example involves the following five files: an application source file - "main. Ditto the data line. A 470 ohm resistor is connected in series to led. "Îäíîãîäè÷íàÿ âîéíà" ïîäõîäèò ê êîíöó. You have to connect boot0 pin to GND using the jumper after uploading code to watch your code working. On Windows, only the port is different (COMx). py you're using but the line number doesn't correspond to the official version or the one I recommended. 0 (maybe others). bsec_iot_example. Ïîòåðïåâ ïîðàæåíèå íà Çåìëå, ñèëû Çåîíà îòñòóïàþò. The LL library offering a fast light-weight expert-oriented layer which is closer to hardware than the Hardware Abstraction Layer (HAL) library. It should be easy now to interface any I2C device with STM8…. If you have not set up STM32CubeIDE with your Nucleo board, you will need to do so following the steps outlined in this tutorial. Sound, an I2C Controller Service is a hardware. Since, Slave Address in I2C Communication is very important, you have to know it beforehand. We can do this by using the I2C scanner code. I know it's early because we still need to go through some basic things before jumping to I2C but the problem is LCD. This is a fundamental area you need to understand and build from. Thus, only 112 addresses can be used. Library Read more about new HAL libraries Features Supports up to 4 I2C peripherals Supports. Since the STM32 has 16bit ports. 13 I2C EEPROM サンプル:Example/7. Embedded ARM Part 0: STM32 programming with libopencm3 Tue, Sep 11, 2018 Companion code for this post available on Github. The STM32 USART_Pol example program shows how to configure and use the USART1 of STMicroelectronics STM32F103xx microcontroller in polling mode. The 9-pin interface allows the exchange of data between a connected system and the card controller. To enable the I2C driver open the file /etc/modules as root and insert the below line. The I2C version has I2C in the name, the SPI version omits this 4 The number that the function name ends with (_2, in this case, right after the noname) controls how much memory/RAM you want to use for graphics. Adding the –show flag tells us the available options. bsec_iot_example. Let's take a look at the first part of the code:. All embedded software utilities come with a full set of examples. After some email for I2C library for HAL, I've made it. Arduino for STM32. h is the header file for i2c. STM32SnippetsL0 - Example Code snippets covering STM32 L0 serie, STM32SnippetsL0, STMicroelectronics. c (I2C V2: F0/F3/F7/L4) Important heterogeneity: stm32_ll_clock. This library allows you to use, in some relatively easy way, the USB capabilities of the STM32 line, including USB client (the one we use for this project), USB host and USB On-The-Go, were available. Can anyone give me an example code to config, init and send and receive data through the I2C bus. There’s an stm32 in between, so you’ll have to write a firmware for that to access the full icm20948, or ask Hex to give you a firmware that does that. Input/Outputs listed are generally those easily accessible on regular autopilot connectors, customization/hacks can modify available I/O, for example free an extra I2C on Tiny and TWOG. Step one consists in selecting the STM32 microcontroller that matches the required set of peripherals. This is a headed sample. However, if you're curious, SparkFun provides a great tutorial on I2C. The camera sensor is configured and controlled via a MuC I2C interface via the CAMERA_EXT protocol. I2C is a synchronous serial bus protocol used for serial communication between components on the same board. To disable the BME280 I2C simulator and use the actual I2C port to connect to a real BME280 I2C module, check the instructions for “Enabling I2C Interface on STM32 Blue Pill”. Пример реализации I2C Slave на STM32. STM32 LL Library STM32 Low Level (LL) library is a new library for programming the STM32 series. It is advisable to use 400kHz frequency for the I2C. Find below some basic STM32 (STM32F103C8) Microcontroller based tutorials and sample projects to learn and work with STM32F103C8 board. I suggest you try with this one. It takes a whole lot of efforts to interface LCD using conventional methods, but. The library comes with examples for some types of USB devices. This loads the I2C kernel modules and optionally sets the baud rate to the given speed in Kb/sec (multiples of 1000). pde, will continuously reads data from the magnetometer for each of the magnetometer's axes using I 2 C. - anishtain4 Feb 4 at 17:01. 44″LCD Display USART, and so on. VEML6040 RGBW Color Sensor with I2C Interface, available from Vishay Intertechnology, a global manufacturer of electronic components. Each OLED display is made of 128x64 or 128x32 individual white OLEDs, each one is turned on or off by the controller chip. A 470 ohm resistor is connected in series to led. STM32 half-duplex SPI connection. I2C 활용하는 전체순서. It consists of a 9-pin interface, a card controller, a memory interface and a memory core. The LL library offering a fast light-weight expert-oriented layer which is closer to hardware than the Hardware Abstraction Layer (HAL) library. It needs two lines, the SDA (data) and the SCL (clock). While the firmware provided by STMicroelectronics provides a solid foundation for software development with the STM32 family, it can be difficult to get started. I also use the stm32 discovery board. If you have the older non-STEMMA version of the OLED,. 프로젝트(예 : KEIL )에서 I2C 관련 함. STM32 example project of LCD, RS232, I2C, ADC DMA, GPIO. For example in read function you have: /* -> Lets ask for register’s address */ WriteBuffer(I2C_ADDRESS, &RegAddr, 1); This means you ask device whose address is I2C_ADDRESS for the content of the RegAddr. 1 - I2C/Output/I2C. Elastic Notes: STM32 + I2C OLED SSD1306 + u8glib + CubeMX: If you think, that title of this post consists of all possible random words, you are wrong:) This is what I've try to chain right during couple of days, but it was not so simple, as I thought at first time!. its parameters are the number of the I2C controller, the command link handler and the maximum number of ticks it can wait (this method is indeed blocking; in the example below it waits for a maximum of 1 second). The products and example are pretty good! Oct 10, 2013 #7. Many embedded systems include peripheral devices connected to the microprocessor in order to expand its capabilities. The electrical integrity problems with I2C and SPI can be alleviated by using differential signals, as is the case with RS422/485. The LL library offering a fast light-weight expert-oriented layer which is closer to hardware than the Hardware Abstraction Layer (HAL) library. The motors will work and they will turn, but there may be too much jitter – especially for mechanical servo motors which will overheat. It consists of a 9-pin interface, a card controller, a memory interface and a memory core. In addition to the usual peripherals found in the typical Arduino device, the STM32 device includes a USB controller, RTC (Real Time. Since the STM32 has 16bit ports. We’ll configure these peripherals and generate the initialization C-Code using the CubeMX software tool. Bluno M3- a STM32 ARM with Bluetooth 4. c (F3 series) … Lot of HAL/LL. Include your state for easier searchability. If you think, that title of this post consists of all possible random words, you are wrong:) This is what I've been trying to make work correctly during the last days!Actually, the task is not too hard, but only when you've got rid of. c (F1 series) stm32f3x_ll_clock. I have tried to follow the sample code as closely as possible and pretty much just add the I2C initialization. The LL library offering a fast light-weight expert-oriented layer which is closer to hardware than the Hardware Abstraction Layer (HAL) library. Example¶ Here are some examples of how to use mraa, common convention is to import mraa as mraa to keep it short but feel free to import it globally! As a general rule the API is very similar to the C++ API so there are only basic examples to show quick usage. I’ve made a very detailed tutorial on how to get I2C working on Arduino in conjunction with the MPU-6050 not long ago. Untracked shipping is included in the price, but they’ll only ship to a limited number of countries/regions: USA, EU, UK, Canada, Norway, Switzerland, Australia, New Zealand, Singapore, Japan. I2C Accelerometer Sample. bsec_iot_example. On Windows, only the port is different (COMx). As an example, in Figure 1 a temperature sensor (U2 – LM75BDP) is connected to the microcontroller via the I2C bus. Because we are writing to the whole 16 bit port we can't use any other pin from this port even if we use only one output for our LED strip. All embedded software utilities come with a full set of examples. Getting Started with STM32 Nucleo64 using STM32CubeMX and TrueSTUDIO - Simple LED Control. See the chapter 6. If video is your preferred medium, check out this. STM32CubeMX is an extension of the existing MicroXplorer tool. c (F3 series) … Lot of HAL/LL. Naze32 fit in less then 64k I can't find cheap stm32 board with the 128k memory, the link above is for stm32 with only 64k and even if Naze board have the bigger chip, the hex file from Naze32 works on these board too, it is just 54k of program for now, that can be slim down in case of need. The following setup requires minimal effort to get it work, but it is only one of the many. STM32CubeMX is an extension of the existing MicroXplorer tool. This screen controlled by a microcontroller SSD1306 uses the I2C bus can communicate with an Arduino, an ESP8266 and even a mini-PC (Raspberry Pi, Orange Pi …). Categories STM32 Microcontroller Tutorial, Microcontroller Tutorials Tags i2c communication with stm32, i2c interface with stm32f4, i2c interfacing with stm32, i2c protocol working, i2c stm32f103 example, i2c with stm32f0, i2c with stmf4, stm32 i2c example code, stm32f103 i2c example 2 Comments. c (F1 series) stm32f3x_ll_clock. It should be easy now to interface any I2C device with STM8…. Some I2C devices, like external flash for example, or complex devices like laser sensors, use 2 bytes registers. The 9-pin interface allows the exchange of data between a connected system and the card controller. The HID I2C driver is available on all client SKUs of Windows and is included in WinPE. I’ve made a very detailed tutorial on how to get I2C working on Arduino in conjunction with the MPU-6050 not long ago. It has RS232 and both USB and CAN. exe-o Debug / NEC_Decode4. [email protected] In HAL library, there are several functions that provide us an easy solution to program I2C communication, particularly for Master mode. From now on I will make it a rule to get one peripheral working at a time. Arm Development #2 – STM32 Cortex-M0 I2C Tutorial using ADS1115 Analog to Digital IC – Keil & CubeMX The second ARM Tutorial is progressively more difficult as we tackle I2C. html 本ドキュメントは、 「Maple LeafLabs, LLC. STM32SnippetsL0 - Example Code snippets covering STM32 L0 serie, STM32SnippetsL0, STMicroelectronics. 개요 STM32 에서 I2C 사용하기 위하여 CubeMX에서의 설정. The datasheet shows the I2C module being clocked at CPU/4 (150 MHz in this case). I chose to use MAX6955 to drive them, it works by the serial interface I2C. I2C, on the other hand, in its most general form, is bidirectional on both pins. Running I2C or SPI off-board, even for relatively short distances, can start to result in bit errors at higher speeds or in the presence of interference. Also, I have a brand new I2C HAL driver also for STM32 which is 99% complete and fully functional, interrupt driven, loosely based on the USART driver. 1 year, 7 months ago. Hi Guys, I’ll try to use SSD1306 I2C library but it doesn’t show anything, on my avr same display shows adafruit samples, but here after I added library from this post, choose example I2C STM32, nothing happen, on both I2C ports, is anything else to set if I want to use this library and example code?. The examples are organized per peripheral (one folder for each peripheral, such as TIM) and run exclusively on Nucleo board. stm32硬件iic之dma传输数据 stm32 i2c dma学习笔记 02-20 2570. I can confirm that LL_GPIO_Init is broken in the latest STM32CubeMX version 4. It's said to learn something, the best way is to make it. Going over the basic problems of implementing an I2C communication, you'll be on the right path to never have problems with I2C ever again, whether you're a firmware developer programming a multi-slave device, or a hardware engineer coming up with a brand new board!. All the examples in this library assumes the default address of the I2C as 0x27. c (I2C V1: F1/F2/F4/L1) i2c_ll_stm32_v2. If you think, that title of this post consists of all possible random words, you are wrong:) This is what I've been trying to make work correctly during the last days!Actually, the task is not too hard, but only when you've got rid of. HAL_I2C_Slave_Receive_IT() is called to: - Check i2c peripheral has been setup - Set up HAL internal locks and mode tracking, etc. Untracked shipping is included in the price, but they’ll only ship to a limited number of countries/regions: USA, EU, UK, Canada, Norway, Switzerland, Australia, New Zealand, Singapore, Japan. Since the STM32 has 16bit ports. Most I2C devices use 8 bits sized internal registers. STM32 LL Library STM32 Low Level (LL) library is a new library for programming the STM32 series. This bit signals whether the device is ready to proceed with the next byte. Using with I2C The display can be used with any I2C microcontroller. I'd like to control 7 10-led-bargrah to display some visual effects. c is my simple I2C library, based mainly on the ATmega datasheet description. The Arduino Pro Mini reads the register address and in the same function starts a communication, using SPI, with the ADNS3080 sensor. Hi There, Sports Fans, I just finished porting Arthur Liberman's fast SH1106 library (original thread at arduino. I regularly every week or so with either some explanations about the peripherals or mostly example codes. The HID I2C driver is available on all client SKUs of Windows and is included in WinPE. There are other issues which prevent me from using existing MPU6050 driver so I'm. The Intel. I can confirm that LL_GPIO_Init is broken in the latest STM32CubeMX version 4. For example in read function you have: /* -> Lets ask for register’s address */ WriteBuffer(I2C_ADDRESS, &RegAddr, 1); This means you ask device whose address is I2C_ADDRESS for the content of the RegAddr. STM32 Primer - A minimal example. These displays are small, only about 1" diameter, but very readable due to the high contrast of an OLED display. I am working on adapting the SPI DMA-basic code for use with the I2C. For example, Ad fruit Motor Shield SPI,L3G4200D 3-Axis Gyro I2C or SPI, 1.