ChibiOS Free Embedded RTOS

Final Update:

After observing the GPIO registers and watching traces on my scope, I realized that external pull up resistors (2-10kOhms) are required when using all I2C ports (except I2CD1 connected to pins PB6 and PB9). It's important to note that if connection to the pull up resistor is disturbed ...

Hi Giovanni,

I have since realized I was mistaken about that. I was looking at the wrong block of code while debugging. Currently I am trying to determine where/how peripheral assignments are preformed for the I2C drivers. For example when one enables and starts STM32_I2C_USE_I2C1, SDA is on pin ...

Quick Update.

I have confirmed that It is not a hardware issue as I have been able to establish and reconfigure the I2C1, 2, and 3 peripherals using other HAL libraries. After stepping into the entire configuration process while debugging I have observed that pieces of configuration protected by ...

Hello,

I have been having trouble assigning peripherals to an I2C driver on my STM32F407Discovery board. Specifically I am trying to use I2CD3 on pins PA8->SCL and PC9->SDA. I was under the impression that one could assign peripherals through the use of palSetPadMode like so:

palSetPadMode(GPIOC ...

Hello Giovanni,

Thank you for he quick reply. That was my problem, I was actually following Rocco's article I must have missed that step.

Thank you!

Hello,

I am very new to chibi and relatively new to stm32 programming in general. I have been trying to run a simple demo on my stm32f4 discovery board and have come across the following error message when I try to debug ...