I2C with FSMC Remap Problem

[stst9183]

Posted on April 28, 2010 at 11:37

I2C with FSMC Remap Problem

[John F.]

Posted on May 17, 2011 at 13:49

I use PB8, (SCL) and PB9, (SDA) on an STM32F103. Works OK. My software configuration looks like yours. I assume you have RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);

Maybe you have a physical fault on your PCB?

[stst9183]

Posted on May 17, 2011 at 13:49

Hello John,

based on your statement I rechecked my (test) hardware. For the SDA I mistakely used a 100k instead of 4,7k. Now it works!!

Hrrr... I spent a lot of time for this...

Well I didn´t think on the hardware that this is the problem because the hardware works on the other pins....hmm ;)

Thanks a lot,

Joachim