uart_init.c

// see stm32f10x_usart.h
USART_InitTypeDef USART_InitStructure;
// Initialize USART structure
USART_StructInit (& USART_InitStructure);
// Modify USART_InitStructure for non -default values , e.g.
// USART_InitStructure.USART_BaudRate = 38400;
USART_InitStructure.USART_BaudRate = 9600;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(USART1 ,& USART_InitStructure);
USART_Cmd(USART1 , ENABLE);