printf with cmsis library

Hello I use printf for sending out data from USART ports. struct __FILE { int handle;} ; FILE __stdout; FILE __stdin; FILE __stderr; int fputc(int ch, FILE *f) { while(!USART_GetFlagStatus(USART1...
printf with cmsis library

Hello I use printf for sending out data from USART ports. struct __FILE { int handle;} ; FILE __stdout; FILE __stdin; FILE __stderr; int fputc(int ch, FILE *f) { while(!USART_GetFlagStatus(USART1...
about printf

I use winbond's w77e58,which has 2 uart. I find the printf output string on uart 0 default, now I want to use uart 1, how can I do?
About printf

By default serial port is the standard output device,how to change it to a controller Port0
About printf

If i have two serial port in the controller(interfaced 16c550) how to access both using printf library