Hello,
I am using nRF52832 DK PCA10040 v1.2.4, SDK_15.3.0, S132 SoftDevice and Segger for flashing the image. I am using ‘ble_app_blinky’.
I have very basic query.
1) In block diagram I am seeing only one UART. This can be enabled with or without EasyDMA. Without EasyDMA it is just UART whereas with EasyDMA it is UARTE. Is my understanding is correct ?
2) In ‘uart’ example, printf() is working. This uses UART (Without EasyDMA). To cross check, (On Development kit) I changed pin configuration in pca10040.h as below and it did not work. So to my understanding printf() uses UART with instance 0 and pins as 5, 6, 7 and 8.
#if 1 // As is in Development kit
#define RX_PIN_NUMBER 8
#define TX_PIN_NUMBER 6
#define CTS_PIN_NUMBER 7
#define RTS_PIN_NUMBER 5
#else
#define RX_PIN_NUMBER 11
#define TX_PIN_NUMBER 12
#define CTS_PIN_NUMBER 13
#define RTS_PIN_NUMBER 14
#endif
3) If “uart’ example uses UART to print, then whether NRF_LOG_INFO() uses the same UART in ble_app_blinky. To cross check as above, I changed the pin configuration. But still I am seeing debug prints from Development Kit.
a) Whether NRF_LOG_INFO() uses UART. If so what are the pin configurations. Even if I change pins from 5, 6, 7 and 8 to 11, 12, 13 and 14 still NRF_LOG_INFO() prints on Terminal (Using Development Kit).
b) If NRF_LOG_INFO() does not use UART, then how debug prints are printing on Terminal (I am using ‘Tera Term’).
4) If I load ‘ble_app_blink’ on Development kit, I am able to see debug prints (Using NRF_LOG_INFO()) on Terminal. But if I load the same on my custom board I could not able to see the prints. In my board, as show above, I am using 11, 12, 13 and 14. Also ‘ble_app_blinky” do not have hardware flow control. So even I disconnected RTS & CTS. But still I am not able to see debug prints.
5) Below are the configurations in sdk_config.h. Just I want to print debug prints using NRF_LOG_INFO() on my custom board instead of Development kit (Which is working).
#define NRF_LOG_BACKEND_RTT_ENABLED 0 #define NRF_LOG_BACKEND_UART_ENABLED 1 #define NRF_LOG_ENABLED 1 #define NRFX_UART_ENABLED 1 #define UART_ENABLED 1 APP_UART_ENABLED is not defined in sdk_config.h of ‘ble_app_blinky’.
Please let me know your inputs and correct me if I am wrong in any of the above statements.
Also please take on priority as I struck up with this issue.
Thanks & Regards
Vishnu Beema
