Posted on September 16, 2015 at 10:05Hi,
I am trying to communicate STM32F407 with a I2C slave device @ 100khz on I2C1.
The slave supports up to 400khz.
I traced the lines between the controller and the slave using a logic analyzer and check whether signals are properly generated (attached).
But, the controller generates an AF error. Tried for all available Read/Write functions in HAL but get the same error.
I am using I2C2 for another slave (EEPROM) with the same settings and things work just fine
I2C Settings and Code attached.
Environment: FreeRTOS, Coocox IDE, ARM gcc, STLINKV2
Any thoughts?
Thanks.
#ack #i2c #aferror #stm32f407
