// Configure UART5 for 115200 baud with no flow control
void USART_Config()
{
    // Structures to hold initialization data
    GPIO_InitTypeDef GPIO_InitStructure;
    USART_InitTypeDef USART_InitStructure;

    // Enable GPIO and then peripheral clocks respectively
    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC | RCC_AHB1Periph_GPIOD, ENABLE);
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART5, ENABLE);

    // Connect the pins to the alternate function mapping
    GPIO_PinAFConfig(GPIOC, GPIO_PinSource12, GPIO_AF_UART5); // TX
    GPIO_PinAFConfig(GPIOD, GPIO_PinSource2, GPIO_AF_UART5); // RX

    // Configure the GPIO pins as AF push-pull
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
    GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
    GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
    GPIO_InitStructure.GPIO_Pin = GPIO_PinSource12;
    GPIO_Init(GPIOC, &GPIO_InitStructure);

    GPIO_InitStructure.GPIO_Pin = GPIO_PinSource2;
    GPIO_Init(GPIOD, &GPIO_InitStructure);

    // Configure the peripheral
    USART_InitStructure.USART_BaudRate = 115200;
    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
    USART_InitStructure.USART_StopBits = USART_StopBits_1;
    USART_InitStructure.USART_Parity = USART_Parity_No;
    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
    USART_Init(UART5, &USART_InitStructure);
    USART_Cmd(UART5, ENABLE);
}