STM32F107 PA15

[Alberto Carraro]

Posted on October 23, 2017 at 13:47

I'm not able to turn high PA15 output.

All other pins (PB2, PB3 etc) correctly changes output with GPIO_SetBits/ResetBits.

I'm using Keil and SWD connected programmer.

I've checked with oscillator output but it's all the time LOW (except when I program the uc it goes HIGH).

Here is my initialization code:

RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC, ENABLE);

RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE); GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable, ENABLE);

// Configure output PA pins

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_4 | GPIO_Pin_8 | GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_15; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;

GPIO_Init(GPIOA, &GPIO_InitStructure);

// Configure output PB pins

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_Init(GPIOB, &GPIO_InitStructure);

// Configure output PC pins

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13 | GPIO_Pin_14 | GPIO_Pin_15; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; GPIO_Init(GPIOC, &GPIO_InitStructure);

Thank you.

Alberto

[Tesla DeLorean]

Posted on October 23, 2017 at 19:03

Thought there was a JTAG/GPIO example in the SPL tree.