Question
STM32F103 can't config MCO（PA8） and USB CLK together
Posted on April 23, 2014 at 17:45
Hello All,
I use STM32F103VCT6 and VirtualComPort_loopback Project, it worked well. But now I want to output clk through PA6(MOC) ,but it did't work unless comment out Set_USBClock(); . Who knows why?
void MCO_Config(void)
{
GPIO_InitTypeDef is;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA,ENABLE);
is.GPIO_Pin = GPIO_Pin_8;
is.GPIO_Speed = GPIO_Speed_50MHz;
is.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA,&is);
RCC_MCOConfig(RCC_MCO_SYSCLK);
return;
}*****************************************************************************
* @file main.c
* @author MCD Application Team
* @version V4.0.0
* @date 21-January-2013
* @brief Virtual Com Port Demo main file
*****************************************************************************
int main(void)
{
MCO_Config();
Set_System();
Set_USBClock(); // comment out this line MOC will work
USB_Interrupts_Config();
USB_Init();
MainLoop();
}