My main function drive a peripheral one : My peripheral function drive a register one : Asking for help, clarification, or responding to other answers. Open up main.c, and modify it to look like the following: Lets take a look at the I2C portion of the code. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Since we expect 2 bytes from the TMP102 (temperature data is sent as 12 bits), we tell the function that we want to read 2 bytes. and then, while(HAL_I2C_Mem_Write(&hi2c1, I2C_EEPROM_ADDRESS, eeStart, I2C_MEMADD_SIZE_8BIT, pRamStart, num, HAL_MAX_DELAY)!= HAL_OK); These 2 bytes will contain the temperature data. Referenced by HAL_I2C_Master_Receive_DMA(), HAL_I2C_Master_Receive_IT(), HAL_I2C_Master_Sequential_Receive_IT(), HAL_I2C_Master_Sequential_Transmit_IT(), HAL_I2C_Master_Transmit_DMA(), HAL_I2C_Master_Transmit_IT(), HAL_I2C_Mem_Read_IT(), HAL_I2C_Mem_Write_IT(), I2C_Master_ADD10(), and I2C_Master_SB(). Referenced by HAL_I2C_Master_Receive(), HAL_I2C_Master_Receive_DMA(), HAL_I2C_Master_Receive_IT(), HAL_I2C_Master_Sequential_Receive_IT(), HAL_I2C_Master_Sequential_Transmit_IT(), HAL_I2C_Master_Transmit(), HAL_I2C_Master_Transmit_DMA(), HAL_I2C_Master_Transmit_IT(), HAL_I2C_Mem_Read(), HAL_I2C_Mem_Read_DMA(), HAL_I2C_Mem_Read_IT(), HAL_I2C_Mem_Write(), HAL_I2C_Mem_Write_DMA(), HAL_I2C_Mem_Write_IT(), HAL_I2C_Slave_Receive(), HAL_I2C_Slave_Receive_DMA(), HAL_I2C_Slave_Receive_IT(), HAL_I2C_Slave_Sequential_Receive_IT(), HAL_I2C_Slave_Sequential_Transmit_IT(), HAL_I2C_Slave_Transmit(), HAL_I2C_Slave_Transmit_DMA(), HAL_I2C_Slave_Transmit_IT(), and I2C_MasterTransmit_TXE(). By using the Co-Browse feature, you are agreeing to allow a support representative from Digi-Key to view your browser remotely. What one-octave set of notes is most comfortable for an SATB choir to sing in unison/octaves? Not the answer you're looking for? Why does bunched up aluminum foil become so extremely hard to compress? Not the answer you're looking for? * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Referenced by HAL_I2C_ER_IRQHandler(), HAL_I2C_Master_Abort_IT(), HAL_I2C_Master_Receive(), HAL_I2C_Master_Receive_DMA(), HAL_I2C_Master_Receive_IT(), HAL_I2C_Master_Sequential_Receive_IT(), HAL_I2C_Master_Sequential_Transmit_IT(), HAL_I2C_Master_Transmit(), HAL_I2C_Master_Transmit_DMA(), HAL_I2C_Master_Transmit_IT(), HAL_I2C_Mem_Read(), HAL_I2C_Mem_Read_DMA(), HAL_I2C_Mem_Read_IT(), HAL_I2C_Mem_Write(), HAL_I2C_Mem_Write_DMA(), HAL_I2C_Mem_Write_IT(), HAL_I2C_Slave_Receive(), HAL_I2C_Slave_Receive_DMA(), HAL_I2C_Slave_Receive_IT(), HAL_I2C_Slave_Sequential_Receive_IT(), HAL_I2C_Slave_Sequential_Transmit_IT(), HAL_I2C_Slave_Transmit(), HAL_I2C_Slave_Transmit_DMA(), HAL_I2C_Slave_Transmit_IT(), I2C_DMAAbort(), I2C_DMAError(), I2C_DMAXferCplt(), I2C_Master_ADDR(), I2C_MasterReceive_BTF(), I2C_MasterReceive_RXNE(), I2C_MasterTransmit_BTF(), I2C_MasterTransmit_TXE(), I2C_Slave_STOPF(), I2C_SlaveReceive_BTF(), I2C_SlaveReceive_RXNE(), I2C_SlaveTransmit_BTF(), and I2C_SlaveTransmit_TXE(). Referenced by HAL_I2C_Mem_Read_IT(), HAL_I2C_Mem_Write_IT(), and I2C_MasterTransmit_TXE(). c - STM32 HAL I2C Polling Mode - Stack Overflow I don't think that the EEPROM IC (ATMLU036/2EB - AT24C256B) doesn't like 3V because it worked in Arduino and the datasheet says that it will work fine even at lower voltages. Try again later. Now lets see what the code generator did: First of all, we find the Include section we can add the library needed. Stm32bh1750 - Replace the. How to say They came, they saw, they conquered in Latin? Digi-Key respects your right to privacy. Configure the SCL and SDA I/Os as General Purpose Output Open-Drain, High level (Write 1 to GPIOx_ODR). rev2023.6.2.43474. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. How does the number of CMB photons vary with time? first time around it will be a register. Then, once the analog filters are unlocked and output the SCL and SDA lines level, the BUSY flag can be reset with a software reset, and the I2C can enter master mode. Click Project > Build Project. Is there a faster algorithm for max(ctz(x), ctz(y))? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Definition at line 185 of file stm32f4xx_hal_i2c.h. When the function returns, if all goes well, the bytes read from the TMP102 will be stored in that buffer. &hI2C, buffer, sizeof(buffer), HAL_MAX_DELAY); &hI2C, 0x15B, tempBuffer, sizeof(tempBuffer)) != HAL_OK). How do you determine that the recording, which requires considerable time, by the standards of the processor, is completed? You will receive an email confirmation when your registration is complete. Registered users can track orders from their account dropdown, or click here. We immediately follow that with a read command where we read 2 bytes from the TMP102. It is available in various 8-pin packages. * Description : This file provides code for the configuration * of the I2C instances. I guess that MLX90614esf is less sensitive to big capacitance (or it has lower value resistors for internal pull-up). IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE, * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR, * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF, * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS, * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN, * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE), * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE. In your case however, you told the Arduino up front that it should read 4 bytes, so it proceeds to ack the first three and nacks the fourth. Each peripheral (such as I2C) is associated with a specific stream/channel of the DMA controller. Troubleshooting Common Installation Errors, We will begin with creating a basic project sending a simple message over I2C in the. Referenced by HAL_I2C_DeInit(), HAL_I2C_DisableListen_IT(), HAL_I2C_EnableListen_IT(), HAL_I2C_ER_IRQHandler(), HAL_I2C_GetState(), HAL_I2C_Init(), HAL_I2C_IsDeviceReady(), HAL_I2C_Master_Abort_IT(), HAL_I2C_Master_Receive(), HAL_I2C_Master_Receive_DMA(), HAL_I2C_Master_Receive_IT(), HAL_I2C_Master_Sequential_Receive_IT(), HAL_I2C_Master_Sequential_Transmit_IT(), HAL_I2C_Master_Transmit(), HAL_I2C_Master_Transmit_DMA(), HAL_I2C_Master_Transmit_IT(), HAL_I2C_Mem_Read(), HAL_I2C_Mem_Read_DMA(), HAL_I2C_Mem_Read_IT(), HAL_I2C_Mem_Write(), HAL_I2C_Mem_Write_DMA(), HAL_I2C_Mem_Write_IT(), HAL_I2C_Slave_Receive(), HAL_I2C_Slave_Receive_DMA(), HAL_I2C_Slave_Receive_IT(), HAL_I2C_Slave_Sequential_Receive_IT(), HAL_I2C_Slave_Sequential_Transmit_IT(), HAL_I2C_Slave_Transmit(), HAL_I2C_Slave_Transmit_DMA(), HAL_I2C_Slave_Transmit_IT(), HAL_I2CEx_ConfigAnalogFilter(), HAL_I2CEx_ConfigDigitalFilter(), I2C_DMAAbort(), I2C_DMAError(), I2C_DMAXferCplt(), I2C_IsAcknowledgeFailed(), I2C_ITError(), I2C_Master_ADDR(), I2C_Master_SB(), I2C_MasterReceive_BTF(), I2C_MasterReceive_RXNE(), I2C_MasterTransmit_BTF(), I2C_MasterTransmit_TXE(), I2C_Slave_AF(), I2C_Slave_STOPF(), I2C_SlaveReceive_RXNE(), I2C_SlaveTransmit_TXE(), I2C_WaitOnBTFFlagUntilTimeout(), I2C_WaitOnFlagUntilTimeout(), I2C_WaitOnMasterAddressFlagUntilTimeout(), I2C_WaitOnRXNEFlagUntilTimeout(), I2C_WaitOnSTOPFlagUntilTimeout(), and I2C_WaitOnTXEFlagUntilTimeout(). Invocation of Polski Package Sometimes Produces Strange Hyphenation. Now we create a new STM32CubeMX project with the following steps: Select File > New project from the main menu bar. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS", * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE, * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, * ARE DISCLAIMED. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. SCL and SDA). Immediately after the call to HAL_I2C_MspInit(&hi2c1) you need to check the state of the i2c whit. If you would like to learn more about the I2C protocol, I recommend this tutorial from SparkFun. Select Timers -> TIM2 and change the Prescaler to 16000 and the Counter Period to 1000. I am going to initialize the display and print "Hello World ! We have discussed I2C Protocol with STM32 in detail before. Cannot retrieve contributors at this time. How to work with EEPROM and STM32 - ControllersTech Definition at line 172 of file stm32f4xx_hal_i2c.h. 0 Members and 1 Guest are viewing this topic. Is there a legal reason that organizations often refuse to comment on an issue citing "ongoing litigation"? Redistributions of source code must retain the above copyright notice. We can then perform some math to transform the 12-bit value into a human readable format, like Celsius. How can I get office update branch/channel with code/terminal. The project should compile without any errors. Daily, How to Get PCB Cash Coupen from JLPCB: https://bit.ly/2GMCH9w, Receive Quality Tutorials Straight in your, A platform for engineers & technical professionals You signed in with another tab or window. I2CInter-Integrated CircuitBH1750 1-65535 lux16 However, the Arduino doesn't send a restart, it just carries on blasting out the data straight after the register address. If the master sends nack it means "I have finished getting data from to you". A lot of Engineering projects and tutorials for the students to help them in their final year projects and semester projects. Using external memories that allow you to add storage capacity for all those applications that require data recording. * execution for at least the given time, but may also sleep longer. If it is a read command, data size will be zero } extern void HAL_I2C_SlaveRxCpltCallback (I2C_HandleTypeDef *hi2c) { // This is called after a master 'write' request. Find centralized, trusted content and collaborate around the technologies you use most. Referenced by HAL_I2C_Master_Receive(), HAL_I2C_Master_Receive_DMA(), HAL_I2C_Master_Receive_IT(), HAL_I2C_Master_Sequential_Receive_IT(), HAL_I2C_Master_Sequential_Transmit_IT(), HAL_I2C_Master_Transmit(), HAL_I2C_Master_Transmit_DMA(), HAL_I2C_Master_Transmit_IT(), HAL_I2C_Mem_Read(), HAL_I2C_Mem_Read_DMA(), HAL_I2C_Mem_Read_IT(), HAL_I2C_Mem_Write(), HAL_I2C_Mem_Write_DMA(), HAL_I2C_Mem_Write_IT(), HAL_I2C_Slave_Receive(), HAL_I2C_Slave_Receive_DMA(), HAL_I2C_Slave_Receive_IT(), HAL_I2C_Slave_Sequential_Receive_IT(), HAL_I2C_Slave_Sequential_Transmit_IT(), HAL_I2C_Slave_Transmit(), HAL_I2C_Slave_Transmit_DMA(), HAL_I2C_Slave_Transmit_IT(), I2C_ITError(), I2C_MasterReceive_BTF(), I2C_MasterReceive_RXNE(), I2C_MasterTransmit_BTF(), I2C_MasterTransmit_TXE(), I2C_Slave_STOPF(), I2C_SlaveReceive_BTF(), I2C_SlaveReceive_RXNE(), I2C_SlaveTransmit_BTF(), and I2C_SlaveTransmit_TXE(). to share their engineering projects, solutions & I would like to try a simple communication between two nucleo board; an F4 and an L4. All right! China Large PCB Prototype Enterprise, 600,000+ Customers & Online Order Referenced by HAL_I2C_Master_Transmit_DMA(), HAL_I2C_Mem_Write_DMA(), HAL_I2C_Slave_Transmit_DMA(), I2C_DMAAbort(), I2C_ITError(), and I2C_Slave_STOPF(). By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. This is an answer to the second question, which is why doesn't the STM32 slave ack more bytes written to it but instead stretch the clock? Analyzer2Go will show the ports that could be used a inputs. We provide the I2C peripheral handle and the address of the TMP102 on the bus. Two attempts of an if with an "and" are failing: if [ ] -a [ ] , if [[ && ]] Why? STM32: I2C with HAL what am I doing wrong? - Page 1 - EEVblog This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. How can i make instances on faces real (single) objects? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Making statements based on opinion; back them up with references or personal experience. Can I trust my bikes frame after I was hit by a car if there's no visible cracking? I'm using STM32 with EEPROM 512KB, i inilized the project using STM32CubeMX, In main i call MX_I2C1_Init() then HAL_I2C_MspInit(&hi2c1) , but when i call, This while loop never returns HAL_OK, so i can not processed to read the written data to verify. Definition at line 195 of file stm32f4xx_hal_i2c.h. Connect and share knowledge within a single location that is structured and easy to search. Why are radicals so intolerant of slight deviations in doctrine? When its done, click Run > Debug As > STM32 MCU C/C++ Application. Does the policy change for AI-generated content affect users who (want to) Reading and writing EEPROM via I2C with Linux, EEPROM emulation on stm32 using HAL drivers, STM32F0 I2C HAL save struct to I2C EEPROM, Resetting I2C state using HAL in STM32L0 MCU, How to write and read an I2C eeprom using stm32f100 board, Issue in the I2C communication - STM32 (HAL Library), STM32CubeMX I2C code writing to reserved register bits. On the left pane in CubeMX, select Categories > Connectivity > I2C1. This tutorial shows how to use the I2C interface on the STM32 devices. Next I confirmed that everything works using PulseView. The math for calculating the temperature data can be found in the Digital Temperature Output section of the TMP102 datasheet. I tried to clear I2C_FLAG_TXE & I2C_FLAG_TXIS but it's seems not possible. Stick with the C target language. In Germany, does an academia position after Phd has an age limit? * 3. Find centralized, trusted content and collaborate around the technologies you use most. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Some additional informations : The following functions are never called. In Portrait of the Artist as a Young Man, how can the reader intuit the meaning of "champagne" in the first chapter? The SCL and SDA transition can be forced by software configuring the I2C I/Os in output mode. You have asked two questions. Is there a place where adultery is a crime? Configure the SCL I/O as General Purpose Output Open-Drain, Low level (Write 0 to GPIOx_ODR). Click the Resume button at the top of the toolbar to begin running code on the Nucleo board. By clicking Post Your Answer, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct. The TXIS bit is cleared when the I2C_TXDR register is written with the next data byte to be transmitted. Use MathJax to format equations. Thanks. Rationale for sending manned mission to another star? rev2023.6.2.43474. Learn more about bidirectional Unicode characters. Select the Nucleo-L476RG (or your preferred board) and name your project. Asking for help, clarification, or responding to other answers. Definition at line 193 of file stm32f4xx_hal_i2c.h. The problem is that I cannot get the EEPROM to send an ACK after I send the address. I have also written a simple I2C address scanner (for STM32 and I tried an Arduino I2C address scanner) and it's the same story: IR sensor responded with ACK (on address 0x5A) and EEPROM responded with NACK on every possible 7-bit address :\ (also on 0x50, the A0, A1, A2 address pins are tied to GND, I also tried it with external pull-up resistors, but as You can guess, It didn't work). This is a fix of the. How can I get office update branch/channel with code/terminal, Please explain this 'Gift of Residue' section of a will, Verb for "ceasing to like someone/something". Asking for help, clarification, or responding to other answers. What one-octave set of notes is most comfortable for an SATB choir to sing in unison/octaves? Before we do that, modify the slave I2C firmware to continuously receive and acknowledge 4096-byte chunks of data: First of all, we will demonstrate the interrupt-driven mode. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. To review, open the file in an editor that reveals hidden Unicode characters. * Redistribution and use in source and binary forms, with or without modification. If I simply use HAL_I2C_Slave_Receive(.) the microcontroller doesn't wait until data are send by the other unit. Thanks for contributing an answer to Stack Overflow! I used (0x68 << 1) in the address field HAL_I2C_MASTER_TRANSMIT (), because I thought a bit was needed to read or write, but it seems not. Our project has been initialized by STCubeMX. Definition at line 166 of file stm32f4xx_hal_i2c.h. stm32 - Trying to use I2C ITs with HAL Functions - Electrical A tag already exists with the provided branch name. Making statements based on opinion; back them up with references or personal experience. The device is available in all standard 8-pin packages. HAL_I2C_Master_Transmit () Asking for help, clarification, or responding to other answers. can you please mark this question as solved with the tick mark on the left. Semantics of the `:` (colon) function in Bash when used in a pipe? Unlike the regular. Negative R2 on Simple Linear Regression (with intercept). In some cases this behaviour can save resources at the slave end because the slave knows straight away that it doesn't have to get a fifth byte ready. I plugged SDA and SCL into my oscilloscope and I saw this. The slave then needs to always receive 1 byte for a registered address, then it either sends what information is in that register back to the master if the next operation is a read or overwrites the register if the master's next operation is another write. Making statements based on opinion; back them up with references or personal experience. Select debug settings that match your board and click Finish to create the project: The I2C protocol uses 2 physical signals: Add the following function to your main file that will enable the GPIOB port and switch the PB6 and PB9 pins to the AF4 mode (I2C): Before we can start using the I2C peripheral from our code, we need to enable its clock by calling. How does a government that uses undead labor avoid perverse incentives? Building a safer community: Announcing our new Code of Conduct, Balancing a PhD program with a startup career (Ep. DigiKey customers in the United States can select from a range of delivery options, including Ground shipping at $6.99 and 2-Day at $12.99, Credit account for qualified institutions and businesses, More Products From Fully Authorized Partners. I just wanted the device to answer, I didn't write anything to EEPROM cells. The TMP102 is an extremely simple digital temperature sensor from Texas Instruments. Can I takeoff as VFR from class G with 2sm vis. STM32-Examples/i2c.c at master joseluu/STM32-Examples - GitHub Semantics of the `:` (colon) function in Bash when used in a pipe? Thank you! Does substituting electrons with muons change the atomic shell configuration? The following table summarizes the physical data transferred via the I2C bus during the 2 sample transfers: Now we will show how to use 10-bit addresses instead of 7-bit ones. If the master sends a stop after less than 4 bytes then you need to be able to abort the receive and go back to listening etc. It is perfectly legal in I2C to start reading without knowing how many bytes you want, in this case you will ack every byte and then send a stop condition when you have read enough. I tried to connect an MLX90614 I2C IR sensor and it worked fine (I got the response and I could send and receive data both in Arduino and STM32). We will connect 2 STM32 boards using their I2C interface, will go over the I2C packet format, and will show how to use the STM32 HAL API to send and receive message using I2C. reserved. Now we will show how to move the I2C-related logic into the background by using the interrupt-driven and DMA-driven I2C API. My problem : What one-octave set of notes is most comfortable for an SATB choir to sing in unison/octaves? Finally, we use the HAL_MAX_DELAY to essentially have no timeout. My error here is to affect the pointer to the variable. When I run my code however, I get some NACKS where ther should be ACKS, Here is the response when the master requests a buffer: Would it be possible to build a powerless holographic projector? A0, A1, A2 are connected directly to VCC in this way the device address is 1010111 (in general A0, A1, A2 identify the last three significant bits of the device address 1 0 1 0 A2 A1 A0) is 0x57 in Hexadecimal. To learn more, see our tips on writing great answers. This opens the New Project window. Thanks for contributing an answer to Stack Overflow! Can you be arrested for not paying a vendor like a taxi driver or gas station? I need a simple example in order to understand how implement polling mode I2C communication, please. This is the absolutely correct and expected behaviour, and anyway it is being done by the Arduino not the STM32. The problem is that I cannot get the EEPROM to send an ACK after I send the address. * Old firmwares of STM32F1 sleep 1ms shorter than specified in HAL_Delay. Definition at line 174 of file stm32f4xx_hal_i2c.h. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. This is a perfectly normal and reasonable for a master to do. If you were recording the transmission with Analyzer2Go, it will show a Write at 5A header followed by 4 bytes: 0x31, 0x32, 0x33 and ox34, corresponding to the 1234 message: Switch to the raw view to see what is going on at the lowest level: Now we will play around with various I2C parameters and will show how it affects the physical data transmitted via the I2C pins. To learn more, see our tips on writing great answers. Why wouldn't a plane start its take-off run from the very beginning of the runway to keep the option to utilize the full runway if necessary? What are all the times Gandalf was either late or early? I2C_HandleTypeDef hi2c1; /* I2C1 init function */ void MX_I2C1_Init (void) { hi2c1.Instance = I2C1; hi2c1.Init.ClockSpeed = 100000; hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2; hi2c1.Init.OwnAddress1 = 0; hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; hi2c1.Init.OwnAddress2 = 0; hi. DEFINES defines // Define the I2C extern I2C_HandleTypeDef hi2c1; #define EEPROM_I2C &hi2c1 // EEPROM ADDRESS (8bits) #define EEPROM_ADDR 0xA0 // Define the Page Size and number of pages #define PAGE_SIZE 64 // in Bytes #define PAGE_NUM 512 // number of pages Eg: if the master sends more than 4 data bytes you will get never-ending stretching again. Daily How to fix this loose spoke (and why/how is it broken)? You want to keep trying to receive data. 1 I'm learning to program in HAL and today I wanted to save some data to an external I2C EEPROM. This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. Where is crontab's time command documented? As we will be replacing the. Now we start with our project using STNucleoL053R8 and STCube to generate the initialization code. EEPROMs are generally classified and identified based on the type of serial bus they use. Select and enable in Connectivity the I2C1 and left all configuration as it is and we will operate in polling mode. Definition at line 181 of file stm32f4xx_hal_i2c.h. I used a logic analyzer and as You can see I got only an NACK. Did you write init code yourself or did you let CubeIDE/CubeMX generate initial code for you? Can this be a better way of defining subsets? Here is my code: (in short I used pins PB8 for SCL and PB9 for SDA, I tried 100kHz, 10kHz, 1kHz scl frequency, but it didn't help. The TXIS bit is cleared when the I2C_TXDR register is written with the next data byte to be transmitted. * This was fixed with firmware 1.6 (driver version 1.1.1), so we have to. First, launch the slave firmware and make sure it starts running the. the solution is listed in the errata and is this: Workaround The SCL and SDA analog filter output is updated after a transition occurs on the SCL and SDA line respectively. Ok I found the error. * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE. Can this be a better way of defining subsets? Why do some images depict the same constellations differently? Semantics of the `:` (colon) function in Bash when used in a pipe? embedded-common/sensirion_i2c_hal.c at master - GitHub Enter the name and location for your project and click Create to launch the VisualGDB-specific part of the wizard: Proceed with the default settings (Create a new Embedded Binary using MSBuild) on the first page of the VisualGDBs Wizard: On the next page, select your device. Watth Regular Contributor Posts: 225 Country: STM32: I2C with HAL what am I doing wrong? Sorry for my grammar mistakes, I'm still learning English. Making statements based on opinion; back them up with references or personal experience. @jay That would be unknown, since the ISR is null, so the code would not even go that far to know if any slave is on the bus. Give it a shot! Update the main() function in the master firmware as shown below: We can visualize the interrupt handler timing by setting an arbitrary GPIO pin from it and observing it via Analyzer2Go. if the program is stuck in the while loop always returning HAL_BUSY its very likely that you are using a micro controller whit a hardware bug you can check the errata of the stm32f10xx8 in page 26, this happened to me whit the stm32f103c8t6 which is of the STM32F10xx8 family (if your device is not of this family you can still try the second solution listed below). 576), AI/ML Tool examples part 3 - Title-Drafting Assistant, We are graduating the updated button styling for vote arrows, STM32 DMA Transfer bridge between 2 uart ports, Addressing registers with I2C STM32F0 HAL libraries, ST Microelectronics I2C Interrupt HAL Library question, HAL I2C hangs, cannot be solved with standard routine use to unlock I2C, STM32F446 I2C peripheral won't assert repeated start condition, Compiler error when using HAL functions for I2C communication. * @param useconds the sleep time in microseconds, * Increment by 1 if STM32F1 driver version less than 1.1.1. What are all the times Gandalf was either late or early? rev2023.6.2.43474. Node classification with random labels for GNNs, Negative R2 on Simple Linear Regression (with intercept), Elegant way to write a system of ODEs with a Matrix. I tried it using an Arduino (on 5V and also 3V) and the IC responded with an ACK. 576), AI/ML Tool examples part 3 - Title-Drafting Assistant, We are graduating the updated button styling for vote arrows. Which one to choose depends on the message structure or simply on personal preference. You should see temperature data (in Celsius) being reported twice per second. How can I get office update branch/channel with code/terminal. Cannot retrieve contributors at this time. on: January 26, 2022, 06:00:33 pm Hey everyone, After a successful attempt with SPI, I am now having trouble with I2C. ", first the part related to L476 nucleo board (configured as transmitter), and then the part related to F446 nucleo board (configured as receiver). Configure the SDA I/O as General Purpose Output Open-Drain, Low level (Write 0 to GPIOx_ODR). Pick a board that has I2C pins exposed and make a note of their numbers and locations. even if that's IFR in the categorical outlooks? This is a fix of the. If you remove the connections to SCL or SDA, you should see error messages being reported. It only takes a minute to sign up. The return value, which we store in ret, is a common HAL Status type. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Building a safer community: Announcing our new Code of Conduct, Balancing a PhD program with a startup career (Ep.
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