STM32F103 as Interrupt driven I2C slave . in the address callback Master READif (dir == I2C_DIRECTION_RECEIVE) // 0 { data[0] = 0x55; data[1] = 0xAA; HAL_I2C_Slave_Seq_Transmit_IT(hi2c, &data[0], 2, I2C_LAST_FRAME);}On the wire (see pi...
Hi,I'm emulating M24C02 protocol with STM32F030 & STM32G030. To read M24C02, address is written following by repeated start then data read. Here is my code: ----main.c ----uint8_t i2c_bytes[256] ={0x55, 0xaa, 0xff, 0x00}; //Virtual M24C02 ContentLL_I...
Hi,We're using the STM32 HAL layer(STM32G0xx_HAL_Driver v1.6.1) for I2C and see that when re-enabling the I2C listen interrupt, the HAL_I2C_ListenCpltCallback is called twice. This results in that the first I2C read cmd works but the second after th...
Hello,I have developed a code in FreeRTOS mode that contains two main tasks. The first one check if I have received an RX buffer on the I2C bus, and the second one manage the data that has been received.However, after receiving the first buffer, I am...
Hi,I am using STM32F091VC based custom board. and our application is Multi thread with the FreeRTOS. On I2C1 line three device are connected. all the device are accessed from the different thread. to prevent the simultaneous access we have used Mutex...
hello,trying to write to a ST25DV tag mailbox, via I2C with DMA.The chip has a mailbox of 256 bytes.I use the function:HAL_I2C_Mem_Write_DMA When I try to write data of size 256 bytes, only 255 is written and the last one is written to 0.Writing 25...
Currently I am trying to interface with a LM75A temperature sensor using the STM32F446RE nucleo board.From the datasheet of the LM75A, I gathered that the sensor, returns a temperature measurement without any configuration.So I tried to simply hook u...
Hi,I've been using an STM32L151 for a number of years...long enough ago that the firmware I wrote uses the SPL, not HAL, and I'm really not interested in re-writing the firmware!My problem is that a new I2c device I am connecting requires a RESTART b...
I'm using STM32F407 and Marvel 88E6390X switch in our project. But we have some I2C problems so we added I2C recovery function using TIMER8. The ethernet ports doesn't work stable after this addition . When we removed the I2C function in the projec...
I wish to configure my STM32 MCU (STM32G071RB) as an I2C slave device, and support I2C burst-write and I2C burst-read, in a similar manner to many I2C slave devices:(usually the RA value is incremented after every DATA byte)The I2C receive/transmit f...
