STM32F302K8

[achin]

Posted on June 16, 2016 at 21:04

On this chip the JTAG TDI pin is shared as a I2C pin a well. If I use this pin as I2C, does that mean I can no longer use it as a TDI pin during operation? Or does it go to AF0 state right after reset and then proceed to the programmed state after reset is done?

[Tesla DeLorean]

Posted on June 16, 2016 at 21:24

Would seem to conflict, wouldn't it? It will go into whatever configuration your code sets it into, when you get to that part of the code...

At that point you might expect it to lose/drop debug connectivity if it is using that pin. If you are using SWD connectivity, that doesn't use that pin.