Hey..
I'm having difficulties using P1 pins for UARTE0 and/or UARTE1.
configuring the RX & TX pins like this works great:
#define RBP_UARTE0_RX_PIN_NUMBER NRF_GPIO_PIN_MAP(0,26)
#define RBP_UARTE0_TX_PIN_NUMBER NRF_GPIO_PIN_MAP(0,27)
#define RBP_UARTE1_RX_PIN_NUMBER NRF_GPIO_PIN_MAP(0,8)
#define RBP_UARTE1_TX_PIN_NUMBER NRF_GPIO_PIN_MAP(0,6)
But if I change UARTE1 (and move the wires, obviously) to the following, I see nothing on UARTE1
#define RBP_UARTE1_RX_PIN_NUMBER NRF_GPIO_PIN_MAP(1,8)
#define RBP_UARTE1_TX_PIN_NUMBER NRF_GPIO_PIN_MAP(1,6)
I have, in fact, not had any luck with any of the P1 pins I've tried. Is there something I'm missing that needs doing before I can use P1?
see attached program & sdk_config.h
/*$$$LICENCE_NORDIC_STANDARD<2016>$$$*/ #include <stdint.h> #include <stdbool.h> #include <stddef.h> #include <stdio.h> #include "nrf.h" #include "nrf_drv_clock.h" #include "nrf_gpio.h" #include "nrf_delay.h" #include "nrf_log.h" #include "nrf_log_ctrl.h" #include "nrf_drv_power.h" #include "nrf_drv_uart.h" #include "nrf_serial.h" #include "app_timer.h" #include "app_error.h" #include "app_util.h" #include "boards.h" /** @file * @defgroup nrf_serial_example main.c * @{ * @ingroup nrf_serial_example * @brief Example of @ref nrf_serial usage. Simple loopback. * */ #define OP_QUEUES_SIZE 3 #define APP_TIMER_PRESCALER NRF_SERIAL_APP_TIMER_PRESCALER static void sleep_handler(void) { __WFE(); __SEV(); __WFE(); } #define RBP_UARTE0_RX_PIN_NUMBER NRF_GPIO_PIN_MAP(0,26) #define RBP_UARTE0_TX_PIN_NUMBER NRF_GPIO_PIN_MAP(0,27) #define RBP_UARTE0_CTS_PIN_NUMBER NRF_UART_PSEL_DISCONNECTED #define RBP_UARTE0_RTS_PIN_NUMBER NRF_UART_PSEL_DISCONNECTED #define RBP_UARTE0_HWFC false #define RBP_UARTE1_RX_PIN_NUMBER NRF_GPIO_PIN_MAP(1,8) #define RBP_UARTE1_TX_PIN_NUMBER NRF_GPIO_PIN_MAP(1,6) #define RBP_UARTE1_CTS_PIN_NUMBER NRF_UART_PSEL_DISCONNECTED #define RBP_UARTE1_RTS_PIN_NUMBER NRF_UART_PSEL_DISCONNECTED #define RBP_UARTE1_HWFC false NRF_SERIAL_DRV_UART_CONFIG_DEF(m_uart0_drv_config, RBP_UARTE0_RX_PIN_NUMBER, RBP_UARTE0_TX_PIN_NUMBER, RBP_UARTE0_RTS_PIN_NUMBER, RBP_UARTE0_CTS_PIN_NUMBER, RBP_UARTE0_HWFC, NRF_UART_PARITY_EXCLUDED, NRF_UART_BAUDRATE_115200, UART_DEFAULT_CONFIG_IRQ_PRIORITY); NRF_SERIAL_DRV_UART_CONFIG_DEF(m_uart1_drv_config, RBP_UARTE1_RX_PIN_NUMBER, RBP_UARTE1_TX_PIN_NUMBER, RBP_UARTE1_RTS_PIN_NUMBER, RBP_UARTE1_CTS_PIN_NUMBER, RBP_UARTE1_HWFC, NRF_UART_PARITY_EXCLUDED, NRF_UART_BAUDRATE_115200, UART_DEFAULT_CONFIG_IRQ_PRIORITY); #define TEST_UARTE0 #define TEST_UARTE1 #define SERIAL_FIFO_TX_SIZE 128 #define SERIAL_FIFO_RX_SIZE 128 NRF_SERIAL_QUEUES_DEF(serial0_queues, SERIAL_FIFO_TX_SIZE, SERIAL_FIFO_RX_SIZE); NRF_SERIAL_QUEUES_DEF(serial1_queues, SERIAL_FIFO_TX_SIZE, SERIAL_FIFO_RX_SIZE); #define SERIAL_BUFF_TX_SIZE 1 #define SERIAL_BUFF_RX_SIZE 1 NRF_SERIAL_BUFFERS_DEF(serial0_buffs, SERIAL_BUFF_TX_SIZE, SERIAL_BUFF_RX_SIZE); NRF_SERIAL_BUFFERS_DEF(serial1_buffs, SERIAL_BUFF_TX_SIZE, SERIAL_BUFF_RX_SIZE); NRF_SERIAL_CONFIG_DEF(serial0_config, NRF_SERIAL_MODE_IRQ, &serial0_queues, &serial0_buffs, NULL, sleep_handler); NRF_SERIAL_CONFIG_DEF(serial1_config, NRF_SERIAL_MODE_IRQ, &serial1_queues, &serial1_buffs, NULL, sleep_handler); NRF_SERIAL_UART_DEF(serial0_uart, 0); NRF_SERIAL_UART_DEF(serial1_uart, 1); int main(void) { ret_code_t ret; ret = nrf_drv_clock_init(); APP_ERROR_CHECK(ret); ret = nrf_drv_power_init(NULL); APP_ERROR_CHECK(ret); nrf_drv_clock_lfclk_request(NULL); ret = app_timer_init(); APP_ERROR_CHECK(ret); //bsp_board_leds_init(); //bsp_board_buttons_init(); ret = nrf_serial_init(&serial0_uart, &m_uart0_drv_config, &serial0_config); APP_ERROR_CHECK(ret); ret = nrf_serial_init(&serial1_uart, &m_uart1_drv_config, &serial1_config); APP_ERROR_CHECK(ret); #ifdef TEST_UARTE0 static char tx_message[] = "Hello nrf_serial 0\n\r"; ret = nrf_serial_write(&serial0_uart, tx_message, strlen(tx_message), NULL, NRF_SERIAL_MAX_TIMEOUT); (void)nrf_serial_flush(&serial0_uart, 0); APP_ERROR_CHECK(ret); #endif #ifdef TEST_UARTE1 static char tx_message1[] = "Hello nrf_serial 1\n\r"; ret = nrf_serial_write(&serial1_uart, tx_message1, strlen(tx_message1), NULL, NRF_SERIAL_MAX_TIMEOUT); (void)nrf_serial_flush(&serial1_uart, 0); APP_ERROR_CHECK(ret); #endif while (true) { char c; char c1; #ifdef TEST_UARTE0 ret = nrf_serial_read(&serial0_uart, &c, sizeof(c), NULL, 10); if (ret == NRF_SUCCESS) { (void)nrf_serial_write(&serial0_uart, &c, sizeof(c), NULL, 0); (void)nrf_serial_flush(&serial0_uart, 0); } #endif #ifdef TEST_UARTE1 ret = nrf_serial_read(&serial1_uart, &c1, sizeof(c1), NULL, 10); if (ret == NRF_SUCCESS) { (void)nrf_serial_write(&serial1_uart, &c1, sizeof(c1), NULL, 0); (void)nrf_serial_flush(&serial1_uart, 0); } #endif } } /** @} */