Utilising the Xenith/Unity BLE UART Port for other devices

[xsynatic]

@jaykup

@jaykup

Adding that code for the third UART from the Stormcore will work, just tested it. Will be nice to have another UART port on those.

Here is a compiled version of 5.3 with that change if you want

Unity_5.3_Firmware_3rd_UART_jaykup.bin (384.0 KB)

// Pins for Third UART
#define HW_UART_3_BAUD                          115200
#define HW_UART_3_DEV                           SD2
#define HW_UART_3_GPIO_AF                       GPIO_AF_USART2
#define HW_UART_3_TX_PORT                       GPIOD
#define HW_UART_3_TX_PIN                        6
#define HW_UART_3_RX_PORT                       GPIOD
#define HW_UART_3_RX_PIN                        5