Hello. I use nRF52 , PCA10040 , S132 & SDK 11.
I want to send data what get through UART to nRF52 from a peripheral, to PC by UART. Due to, I made this program from example -> peripheral -> uart. But printf() was not working. I think so because Tera Term(Terminal app) in PC showed nothing.
Where is mistake by me?
My program is following.
And this figure is flow what I want to nRF52 do.
void uart_init_r(){
uint32_t err_code;
const app_uart_comm_params_t comm_params =
{
30, //UART Device's RX
31, //UART Device's TX,
RTS_PIN_NUMBER, //7
CTS_PIN_NUMBER, //5
APP_UART_FLOW_CONTROL_DISABLED,
false,
UART_BAUDRATE_BAUDRATE_Baud9600
};
APP_UART_FIFO_INIT(&comm_params,
UART_RX_BUF_SIZE,
UART_TX_BUF_SIZE,
uart_error_handle,
APP_IRQ_PRIORITY_LOW,
err_code);
APP_ERROR_CHECK(err_code);
}
void uart_init_w(){
uint32_t err_code;
const app_uart_comm_params_t comm_params =
{
RX_PIN_NUMBER, //8
TX_PIN_NUMBER, //6
RTS_PIN_NUMBER, //7
CTS_PIN_NUMBER, //5
APP_UART_FLOW_CONTROL_ENABLED,
false,
UART_BAUDRATE_BAUDRATE_Baud9600
};
APP_UART_FIFO_INIT(&comm_params,
UART_RX_BUF_SIZE,
UART_TX_BUF_SIZE,
uart_error_handle,
APP_IRQ_PRIORITY_LOW,
err_code);
APP_ERROR_CHECK(err_code);
}
int main(void) { LEDS_CONFIGURE(LEDS_MASK); LEDS_ON(LEDS_MASK); uint32_t count = 0; uint8_t led_list[3]={18,19,20}; uint8_t cr; gpio_init();
uart_init_w();
printf("\n\rStart#1 \n\r");
uart_init_r();
printf("\n\rStart#2 \n\r");
uint8_t s[100];
uint8_t len = 0;
while (true)
{
while(app_uart_get(&cr) != NRF_SUCCESS);
LEDS_INVERT(1<<led_list[count&0x03]);
count++;
if (cr == '$'){
LEDS_OFF(1<< 17);
uart_init_w();
printf("%s\n\r",s);
uart_init_r();
LEDS_ON(1<<17);
}
else{
if(len < 99){
LEDS_OFF(1<< 17);
s[len] = cr;
len++;
}
else{
len = 0;
}
}
}
}
