STM32F405RG HAL_I2C_Mem_Read_DMA stopped after reading 2 bytes. I was trying to read the 24AA64FT EEPROM using the I2C DMA methods. But the I2C read will break after reading 2 bytes for no reason, and both SDA and SCL stay low. As you can see in the picture, the reading starts with writing 0x50 (0xA0 >> 1) to the EEPROM, then it reads 0x30 and 0x78 and it just stops.Here is the code, my I2C was configured with STM32CubeMX, I enabled the RX DMA and event/error interrupt.uint8_t pBuff[64];
memset(pBuff, 0, sizeof(pBuff));
uint8_t res;
// HAL_I2C_Mem_Read works fine
// res = HAL_I2C_Mem_Read(&hi2c1, 0xA0, 0, I2C_MEMADD_SIZE_16BIT, pBuff, 64, 100);
// HAL_I2C_Mem_Read_DMA will stop after reading 2 bytes
res = HAL_I2C_Mem_Read_DMA(&hi2c1, 0xA0, 0, I2C_MEMADD_SIZE_16BIT, pBuff, 64); Here is the result for HAL_I2C_Mem_Read, there is no problem.
