Let's look at how to connect a simple I2C device to a STM32 Nucleo board to read temperature data using the STM32 HAL API. How to say They came, they saw, they conquered in Latin? 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(). First, launch the slave firmware and make sure it starts running the. China Large PCB Prototype Enterprise, 600,000+ Customers & Online Order 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. Would it be possible to build a powerless holographic projector? This is an answer to the first question, which is why do you get a nack after reading 4 data bytes? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. If so, we can expect the buffer, buf, to contain our temperature data. Definition at line 189 of file stm32f4xx_hal_i2c.h. Not the answer you're looking for? Passing parameters from Geometry Nodes of different objects. * returned. Definition at line 193 of file stm32f4xx_hal_i2c.h. Finally, add the following code to actually transmit some sample data over I2C and build the project via Build->Build Solution: Set a breakpoint on the HAL_I2C_Master_Transmit() call and press F5 to start debugging. In Return of the King has there been any explanation for the role of the third eagle? A tag already exists with the provided branch name. Can this be a better way of defining subsets? This tutorial shows how to use the I2C interface on the STM32 devices. When the master writes an address or data to the slave, the slave generates an ack if it received the byte and is ready for the master to start sending the next byte. Registered users can track orders from their account dropdown, or click here. If you would like to learn more about the I2C protocol, I recommend this tutorial from SparkFun. The result I expect is to see in pData the string "Hello world! Rationale for sending manned mission to another star? How to add a local CA authority on an air-gapped host of Debian. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Cannot retrieve contributors at this time. and then, while(HAL_I2C_Mem_Write(&hi2c1, I2C_EEPROM_ADDRESS, eeStart, I2C_MEMADD_SIZE_8BIT, pRamStart, num, HAL_MAX_DELAY)!= HAL_OK); The best answers are voted up and rise to the top, Not the answer you're looking for? So, we configure the I2C1 using STCube and leave all configuration as it is and we will operate in polling mode. You signed in with another tab or window. * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright notice, this. Why recover database request archived log from the future. Select Timers -> TIM2 and change the Prescaler to 16000 and the Counter Period to 1000. Is there a place where adultery is a crime? My error here is to affect the pointer to the variable. I tried to clear I2C_FLAG_TXE & I2C_FLAG_TXIS but it's seems not possible. Why Am i having this? stm32 - Trying to use I2C ITs with HAL Functions - Electrical Did an AI-enabled drone attack the human operator in a simulation environment? Do Not Sell / Do Not Share My Personal Information, Rectangular Connectors - Headers, Male Pins, LED Lighting - COBs, Engines, Modules, Strips, Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps. * without specific prior written permission. Click Project > Build Project. This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. * and/or other materials provided with the distribution. (Some buses are low at start, because I restarted STM32). * of the I2C instances. Today, we will discuss How to Write and Read on an I2C EEPROM with STM32. 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. Probably this means starting a receive of data in the receive-complete interrupt once the register address is received. Immediately after the call to HAL_I2C_MspInit(&hi2c1) you need to check the state of the i2c whit. We will use HAL_MAX_DELAY, which comes out to be something like 50 days. Some additional informations : The following functions are never called. Replace the. I tried it using an Arduino (on 5V and also 3V) and the IC responded with an ACK. Select Debug Serial Wire under SYS, for do it click on System Core (on the topo right) and then select SYS and finally flag on Debug Serial Wire. Is there a legal reason that organizations often refuse to comment on an issue citing "ongoing litigation"? I am trying to write an STM32 as an I2C slave device with a simple interface that works like this: So master will always send a registered address every time, then either write or read from that register address. How to Get PCB Cash Coupen from JLPCB: https://bit.ly/2GMCH9w. The TXIS bit is cleared when the I2C_TXDR register is written with the next data byte to be transmitted. Asking for help, clarification, or responding to other answers. * this list of conditions and the following disclaimer. &hI2C, buffer, sizeof(buffer), HAL_MAX_DELAY); &hI2C, 0x15B, tempBuffer, sizeof(tempBuffer)) != HAL_OK). The main contains the initialization of the peripherals and variables, before the while loop the code call the function Write_EEPROM() and Read_EEPROM() to write and read a data in a specific address of the EEPROM. STM32 HAL - writing to EEPROM (I2C) - Stack Overflow I developed an EEPROM library, you can check it and use it for the project. 576), AI/ML Tool examples part 3 - Title-Drafting Assistant, We are graduating the updated button styling for vote arrows. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Add the following code to. Click Switch when asked about switching to a new perspective. Why are radicals so intolerant of slight deviations in doctrine? rev2023.6.2.43474. HAL_TIMEOUT: nothing was received. In the Project Manager tab, configure the code to be generated and click OK to generate 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. Semantics of the `:` (colon) function in Bash when used in a pipe? Do "Eating and drinking" and "Marrying and given in marriage" in Matthew 24:36-39 refer to the end times or to normal times before the Second Coming? 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). Copyright 2020 TheEngineeringProjects.com. 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Click File > Save and click Yes to generate code. 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. The first time will be "true", but after writing to the eeprom, you need to make sure that the recording is completed and the eeprom is ready for the next step. Although someone was able to find a problem in your code, you should in general add more details about what exactly does not work as you want, as I already wrote in my previous comment. I2C handle Structure definition. eeprom - STM32 - I2C Write Failure - Stack Overflow Is "different coloured socks" not correct? 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? hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; * initialization of the GPIO Pins in HAL_I2C_Init (). Inter-Integrated Circuit (I2C) is a communication bus protocol developed by Philips Semiconductor (now NXP Semiconductors) in 1982. The intereseting return values to handle are: HAL_OK: you received data, do something with it. To learn more, see our tips on writing great answers. Is there a faster algorithm for max(ctz(x), ctz(y))? Definition at line 176 of file stm32f4xx_hal_i2c.h. Select Internal Clock as clock source under TIM2 peripheral. * 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. Definition at line 164 of file stm32f4xx_hal_i2c.h. Therefore, the following sequence must be applied: to HAL_I2C_MspInit() after __HAL_RCC_I2C1_CLK_ENABLE(); so that the final solution is. This is a fix of the. 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Referenced by HAL_I2C_IsDeviceReady(), 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_Master_ADDR(), I2C_MasterReceive_BTF(), I2C_MasterRequestRead(), I2C_MasterRequestWrite(), I2C_MasterTransmit_BTF(), I2C_MasterTransmit_TXE(), I2C_Slave_AF(), and I2C_Slave_STOPF(). What one-octave set of notes is most comfortable for an SATB choir to sing in unison/octaves? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. * Execute one read transaction on the I2C bus, reading a given number of bytes. 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. This is a bit of a pain but the master receives the data ok so i can live with this. Average Time to Ship 1-3 Days. So putting the HAL_I2C_Slave_Receive in a loop and handling it's return value is the way to go. Sometimes one or more times is not enough. Support All AT24C Memories with auto data control. extern I2C_HandleTypeDef hi2c1; You can see the functions available in the functions tab under ssd1306.c or in the ssd1306.h file. Electrical Engineering Stack Exchange is a question and answer site for electronics and electrical engineering professionals, students, and enthusiasts. I need a simple example in order to understand how implement polling mode I2C communication, please. * list of conditions and the following disclaimer. (What input do you use, what output/result/behavior do you get and what do you expect instead?). Node classification with random labels for GNNs. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Making statements based on opinion; back them up with references or personal experience. A tag already exists with the provided branch name. In general relativity, how come Earth accelerate? 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. myDIGIKEY Orders & Carts Lists Quotes Logout Your item(s)0 View CartCHECKOUT This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. * This was fixed with firmware 1.6 (driver version 1.1.1), so we have to. Can this be a better way of defining subsets? Where is crontab's time command documented? Thanks for contributing an answer to Stack Overflow! In STM32CubeMX I didn't change anything - the lines have internal pull-up resistors), I have read somewhere, that this might be caused by the IC writing something, but in my example it isn't. Try again later. Note that any Nucleo board may be used, but steps are shown for the Nucleo-L476RG. An interrupt is generated if the TXIE bit is set in the I2C_CR1 register. 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. 2012-2022 Sysprogs O. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. To learn more, see our tips on writing great answers. Configure in GPIO setting PA9 (SDA) and PA8 (SCL) to manage the I2C communication. I try to work with HAL_I2C_Master_Transmit_IT & HAL_I2C_Master_Receive_IT but my firmware stay blocked in the I2C1_EV_IRQHandler : The IT flags seems not to be cleared and the hi2c->XferISR register seems to be NULL : Edit 1 : My EEPROM is, CAT24C512WI-GT3OSCT-ND Unlike the regular. Digi-Key respects your right to privacy. The 4 most significant bits are preset (Control Code), the A0, A1, A2 are Chip Select Bits. We provide the I2C peripheral handle and the address of the TMP102 on the bus. Can this be a better way of defining subsets? these functions were written in EEPROM.c, a C file added to our project in the src folder. Is there a place where adultery is a crime? Definition at line 199 of file stm32f4xx_hal_i2c.h. You should see the reported temperature go up. 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. The first two digits of the code identify the serial bus used: Now we will see how to write or read data on an I2C EEPROM like 24C256C. In the Pinout & Configuration window, assign PB8 and PB9 to I2C1_SCL and I2C1_SDA functions, respectively. Copyright 1995-2023, Digi-Key Electronics. embedded-common/sensirion_i2c_hal.c at master - GitHub EEPROMs (Electrically Erasable Programmable Read-Only Memories) allow the non-volatile storage of application data or the storage of small amounts of data in the event of a power failure. p1141, Slave transmitter A transmit interrupt status (TXIS) is generated when the I2C_TXDR register becomes empty. I recommend the SparkFun TMP102 Breakout Board to test the device. 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. p1127, I2C_TXDR register is not empty. Asked 1 year, 5 months ago Modified 1 year, 5 months ago Viewed 1k times 0 I start recently with stm32 and HAL library. MathJax reference. To review, open the file in an editor that reveals hidden Unicode characters. What happens if a manifested instant gets blinked? Does the policy change for AI-generated content affect users who (want to) I2C write acknowledge polling in Linux Kernel, Resetting I2C state using HAL in STM32L0 MCU, I2C Communication Problem using STM32 HAL, Issue in the I2C communication - STM32 (HAL Library). Difference between I2C STM32 HAL functions, STM32 HAL I2C always sends 0xFF as first byte when responding to master using HAL_I2C_Slave_Transmit. * execution for at least the given time, but may also sleep longer. I2C interfaces. Stm32bh1750 - Are you sure you want to create this branch? Get fast and accurate answers from DigiKey's Technicians and Experienced Engineers on our TechForum. Now we will show how to move the I2C-related logic into the background by using the interrupt-driven and DMA-driven I2C API. For more information please see our Privacy Notice and Cookie Notice. rev2023.6.2.43474. 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(). Why do some images depict the same constellations differently? Would it be possible to build a powerless holographic projector? The operating voltage is comprised of between 1.7V and 5.5V. HAL_I2C_Master_Transmit () Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. China Large PCB Prototype Enterprise, 600,000+ Customers & Online Order * * Neither the name of Sensirion AG nor the names of its, * contributors may be used to endorse or promote products derived from. If, * the slave device does not acknowledge any of the bytes, an error shall be, * @param address 7-bit I2C address to write to, * @param data pointer to the buffer containing the data to write, * @param count number of bytes to read from the buffer and send over I2C, * Sleep for a given number of microseconds. Thank you! Making statements based on opinion; back them up with references or personal experience. Getting Started with STM32 - I2C Example - Digi-Key Electronics To explain: the ack after each byte is always the responsibility of the side that didn't send the byte. 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. Definition at line 195 of file stm32f4xx_hal_i2c.h. On the left pane in CubeMX, select Categories > Connectivity > I2C1. To do this, there is this procedure HAL_I2C_IsDevitseReady. on: January 26, 2022, 06:00:33 pm Hey everyone, After a successful attempt with SPI, I am now having trouble with I2C. All right! Why STM32 I2C slave is returning unwanted NACK or indefinitely clock stretching? Learn more about bidirectional Unicode characters. Thanks to everyone that have read my problem and spend some time tinkering why this was not working. I2C communication Previous state and mode context for internal usage. * this software without specific prior written permission. Using external memories that allow you to add storage capacity for all those applications that require data recording. Definition at line 197 of file stm32f4xx_hal_i2c.h. Please help me or give me a hint why this setup is not working. I also swapped the SDA and SCL leads thinking that I might have mixed them, but this was not the case. As we will be replacing the. Check. In Germany, does an academia position after Phd has an age limit? the second solution may or may not work whit you because its not the solution recommended by ST but in my case and many others works although i wouldn't trust this solution in a product, that depends on the model of your micro you can play whit the delay if 2 doesn't work it really depends on which micro controller you are using. 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). I2C by IT [solved] - ST Community When its done, click Run > Debug As > STM32 MCU C/C++ Application. Sorry for my grammar mistakes, I'm still learning English. Getting Started with STM32 - I2C Example Login orREGISTERHello, {0}Account & Lists Orders & Carts Lists Quotes LoginRegisterWhy Register? rev2023.6.2.43474. * 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. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. My problem : 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. I would like to try a simple communication between two nucleo board; an F4 and an L4. 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? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Tried calling while(HAL_I2C_IsDeviceReady(&hi2c1,0xA0,64,HAL_MAX_DELAY)!=HAL_OK); but this statement is never false, Building a safer community: Announcing our new Code of Conduct, Balancing a PhD program with a startup career (Ep. Could it be an incompatibility issue between the two Nucleo boards? Connect and share knowledge within a single location that is structured and easy to search. Download STM32CubeIDE: https://www.st.com/en/development-tools/stm32cubeide.html. Is there a place where adultery is a crime? Configure the SCL and SDA I/Os as General Purpose Output Open-Drain, High level (Write 1 to GPIOx_ODR). Stop the recording, click on the magnifying lens symbol on the SCL signal to automatically zoom to a meaningful display, and switch to the Protocol Analyzers page in Analyzer2Go: Drag the I2C analyzer to the Protocol Analyzers area and connect its inputs. 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. The project should compile without any errors. Configure the SDA I/O as General Purpose Output Open-Drain , High level (Write 1 to GPIOx_ODR). Not the answer you're looking for? Referenced by HAL_I2C_DeInit(), HAL_I2C_DisableListen_IT(), HAL_I2C_ER_IRQHandler(), HAL_I2C_EV_IRQHandler(), HAL_I2C_GetMode(), HAL_I2C_Init(), 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_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(), and I2C_WaitOnFlagUntilTimeout(). Then press the, Once Analyzer2Go is recording, step over the. Is "different coloured socks" not correct? I tried it using an Arduino (on 5V and also 3V) and the IC responded with an ACK. The bytes in the supplied buffer must be sent to the given address. even if that's IFR in the categorical outlooks? Insufficient travel insurance to cover the massive medical expenses for a visitor to US? After this I added 1K pull-up resistors (instead of the built into STM32 and (in testing) external 10K) and got this nice data transmission. We can choose many types of memories depending on the type of interface and their capacity. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Need &hi2c1, not hi2c1. The device can be used in applications consuming low power. My main function drive a peripheral one : My peripheral function drive a register one : Asking for help, clarification, or responding to other answers. Connect and share knowledge within a single location that is structured and easy to search. Select and enable in Connectivity the I2C1 and left all configuration as it is and we will operate in polling mode. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation. 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. im scratching my head for months on this at this point Negative R2 on Simple Linear Regression (with intercept). WP is connected to the ground to allow the normal write operation, SCL and SDA are connected to PA8 and PA9 respectively of STM32L053R8. The problem is that I cannot get the EEPROM to send an ACK after I send the address.