DA14531 uart project with TX=P0_0 and RX=P0_1

The pad P0_0 is by default a reset input. I have found that I need to add the following line at the beginning of the function set_pad_functions() of the file user_periph_setup.c

GPIO_Disable_HW_Reset();

Modify the following lines in the file user_periph_setup.h inside the #if defined (__DA14531__)

#define UART1_TX_PORT GPIO_PORT_0
#define UART1_TX_PIN GPIO_PIN_0
#define UART1_RX_PORT GPIO_PORT_0
#define UART1_RX_PIN GPIO_PIN_1

#define UART2_TX_PORT GPIO_PORT_0
#定义UART2_TX_PIN GPIO_PIN_0
#define UART2_RX_PORT GPIO_PORT_0
#define UART2_RX_PIN GPIO_PIN_1