Hello
I am working on SDK v17, using nRF52832 (MDBT42Q) and MPU6050 sensor.
I tried TWI_SCANNER because I thought there was a problem getting the value of MPU6050.
However, if I proceed with the scan on this board, I will not be able to escape from 'nrf_twim_event_check' and will have an infinite loop.
This is my main code and modified PCA10040 code.
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/** @file
* @defgroup tw_scanner main.c
* @{
* @ingroup nrf_twi_example
* @brief TWI Sensor Example main file.
*
* This file contains the source code for a sample application using TWI.
*
*/
#include <stdio.h>
#include <stdbool.h>
#include <stdint.h>
#include "boards.h"
#include "app_util_platform.h"
#include "app_error.h"
#include "nrf_drv_twi.h"
#include "app_uart.h"
//#include "bsp.h"
#include "nrf_uart.h"
#include "nrf_uarte.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
/* TWI instance ID. */
#if TWI0_ENABLED
#define TWI_INSTANCE_ID 0
#elif TWI1_ENABLED
#define TWI_INSTANCE_ID 1
#endif
/* Number of possible TWI addresses. */
#define TWI_ADDRESSES 127
//UART
#define MAX_TEST_DATA_BYTES (15U) /**< max number of test bytes to be used for tx and rx. */
#define UART_TX_BUF_SIZE 256 /**< UART TX buffer size. */
#define UART_RX_BUF_SIZE 256 /**< UART RX buffer size. */
/* TWI instance. */
static const nrf_drv_twi_t m_twi = NRF_DRV_TWI_INSTANCE(TWI_INSTANCE_ID);
/**
* @brief TWI initialization.
*/
void twi_init (void)
{
ret_code_t err_code;
const nrf_drv_twi_config_t twi_config = {
.scl = ARDUINO_SCL_PIN,
.sda = ARDUINO_SDA_PIN,
.frequency = NRF_DRV_TWI_FREQ_100K,
.interrupt_priority = APP_IRQ_PRIORITY_HIGH,
.clear_bus_init = false
};
err_code = nrf_drv_twi_init(&m_twi, &twi_config, NULL, NULL);
APP_ERROR_CHECK(err_code);
nrf_drv_twi_enable(&m_twi);
}
//UART
void uart_error_handle(app_uart_evt_t * p_event)
{
if (p_event->evt_type == APP_UART_COMMUNICATION_ERROR)
{
APP_ERROR_HANDLER(p_event->data.error_communication);
}
else if (p_event->evt_type == APP_UART_FIFO_ERROR)
{
APP_ERROR_HANDLER(p_event->data.error_code);
}
}
#define UART_HWFC APP_UART_FLOW_CONTROL_DISABLED
/**
* @brief Function for main application entry.
*/
int main(void)
{
ret_code_t err_code;
uint8_t address;
uint8_t sample_data;
bool detected_device = false;
APP_ERROR_CHECK(NRF_LOG_INIT(NULL));
NRF_LOG_DEFAULT_BACKENDS_INIT();
//bsp_board_init(BSP_INIT_LEDS);
NRF_LOG_INFO("TWI scanner started.");
NRF_LOG_FLUSH();
twi_init();
//UART
/*const app_uart_comm_params_t comm_params =
{
RX_PIN_NUMBER,
TX_PIN_NUMBER,
RTS_PIN_NUMBER,
CTS_PIN_NUMBER,
UART_HWFC,
false,
#if defined (UART_PRESENT)
NRF_UART_BAUDRATE_115200
#else
NRF_UARTE_BAUDRATE_115200
#endif
};
APP_UART_FIFO_INIT(&comm_params,
UART_RX_BUF_SIZE,
UART_TX_BUF_SIZE,
uart_error_handle,
APP_IRQ_PRIORITY_LOWEST,
err_code);
//APP_ERROR_CHECK(err_code);*/
// bsp_board_led_off(0);
// bsp_board_led_off(1);
// bsp_board_led_off(2);
//bsp_board_led_off(3);
// bsp_board_led_off(4);
//printf("\r\nUART example started.\r\n");
for (address = 1; address <= TWI_ADDRESSES; address++)
{
err_code = nrf_drv_twi_rx(&m_twi, address, &sample_data, sizeof(sample_data));
if (err_code == NRF_SUCCESS)
{
detected_device = true;
NRF_LOG_INFO("TWI device detected at address 0x%x.", address);
//printf("TWI device detected at address 0x%x.", address);
//bsp_board_led_on(1);
}
NRF_LOG_FLUSH();
}
if (!detected_device)
{
NRF_LOG_INFO("No device was found.");
//printf("No device was found.");
//bsp_board_led_on(2);
NRF_LOG_FLUSH();
}
while (true)
{
/* Empty loop. */
}
}
/** @} */
//Custum_pca10040.h
#ifndef PCA10040_H
#define PCA10040_H
#ifdef __cplusplus
extern "C" {
#endif
//#include "custom_feature.h"
#include "nrf_gpio.h"
#define LEDS_NUMBER 5
#define LED_START 16
#define LED_1 17
#define LED_2 19
#define LED_6 16 //LED 6~10 : BAT_LED
#define LED_7 18
#define LED_8 20
#define LED_9 30
#define LED_10 31
#define LED_STOP 31
#define LEDS_ACTIVE_STATE 0
#define LEDS_INV_MASK LEDS_MASK
//#define LEDS_LIST { LED_1, LED_2, LED_3, LED_4 }
#define LEDS_LIST {BAT_LED_1, BAT_LED_2, BAT_LED_3, BAT_LED_4, BAT_LED_5} //LED LIST
#define LEDS_LIST2 {BAT_LED_2, BAT_LED_1, BAT_LED_4} //Left LED
#define LEDS_LIST3 {BAT_LED_2, BAT_LED_3, BAT_LED_5} //Right LED
#define BSP_LED_0 LED_1
#define BSP_LED_1 LED_2
#define BSP_LED_2 LED_3
#define BSP_LED_3 LED_4
#define BSP_LED_4 LED_5
#define BUTTONS_NUMBER 1
//#define BUTTONS_NUMBER 4
#define BUTTON_START 28
#define BUTTON_1 28
//#define BUTTON_2 14
//#define BUTTON_3 15
//#define BUTTON_4 16
#define BUTTON_STOP 28
#define BUTTON_PULL NRF_GPIO_PIN_PULLUP
#define BUTTONS_ACTIVE_STATE 0
#define BUTTONS_LIST { BUTTON_1}
#define BSP_BUTTON_0 BUTTON_1
#define RX_PIN_NUMBER 8
#define TX_PIN_NUMBER 6
#define CTS_PIN_NUMBER 7
#define RTS_PIN_NUMBER 5
#define HWFC true
#define SPIS_MISO_PIN 28 // SPI MISO signal.
#define SPIS_CSN_PIN 12 // SPI CSN signal.
//#define SPIS_MOSI_PIN 25 // SPI MOSI signal.
#define SPIS_SCK_PIN 29 // SPI SCK signal.
#define SPIM0_SCK_PIN 29 // SPI clock GPIO pin number.
//#define SPIM0_MOSI_PIN 25 // SPI Master Out Slave In GPIO pin number.
#define SPIM0_MISO_PIN 28 // SPI Master In Slave Out GPIO pin number.
#define SPIM0_SS_PIN 12 // SPI Slave Select GPIO pin number.
#define SPIM1_SCK_PIN 2 // SPI clock GPIO pin number.
#define SPIM1_MOSI_PIN 3 // SPI Master Out Slave In GPIO pin number.
#define SPIM1_MISO_PIN 4 // SPI Master In Slave Out GPIO pin number.
#define SPIM1_SS_PIN 5 // SPI Slave Select GPIO pin number.
#define SPIM2_SCK_PIN 12 // SPI clock GPIO pin number.
#define SPIM2_MOSI_PIN 13 // SPI Master Out Slave In GPIO pin number.
#define SPIM2_MISO_PIN 14 // SPI Master In Slave Out GPIO pin number.
#define SPIM2_SS_PIN 15 // SPI Slave Select GPIO pin number.
// serialization APPLICATION board - temp. setup for running serialized MEMU tests
/*#define SER_APP_RX_PIN 23 // UART RX pin number.
#define SER_APP_TX_PIN 24 // UART TX pin number.
#define SER_APP_CTS_PIN 2 // UART Clear To Send pin number.
//#define SER_APP_RTS_PIN 25 // UART Request To Send pin number.
#define SER_APP_SPIM0_SCK_PIN 12 // SPI clock GPIO pin number.
#define SER_APP_SPIM0_MOSI_PIN 13 // SPI Master Out Slave In GPIO pin number
#define SER_APP_SPIM0_MISO_PIN 14 // SPI Master In Slave Out GPIO pin number
#define SER_APP_SPIM0_SS_PIN 23 // SPI Slave Select GPIO pin number
//#define SER_APP_SPIM0_RDY_PIN 25 // SPI READY GPIO pin number
#define SER_APP_SPIM0_REQ_PIN 24 // SPI REQUEST GPIO pin number
// serialization CONNECTIVITY board
#define SER_CON_RX_PIN 24 // UART RX pin number.
#define SER_CON_TX_PIN 23 // UART TX pin number.
//#define SER_CON_CTS_PIN 25 // UART Clear To Send pin number. Not used if HWFC is set to false.
#define SER_CON_RTS_PIN 2 // UART Request To Send pin number. Not used if HWFC is set to false.
#define SER_CON_SPIS_SCK_PIN 27 // SPI SCK signal.
#define SER_CON_SPIS_MOSI_PIN 2 // SPI MOSI signal.
//#define SER_CON_SPIS_MISO_PIN 26 // SPI MISO signal.
#define SER_CON_SPIS_CSN_PIN 23 // SPI CSN signal.
//#define SER_CON_SPIS_RDY_PIN 25 // SPI READY GPIO pin number.
#define SER_CON_SPIS_REQ_PIN 24 // SPI REQUEST GPIO pin number. */
#define SER_CONN_CHIP_RESET_PIN 21 // Pin used to reset connectivity chip
// Arduino board mappings
#define ARDUINO_SCL_PIN 26//27 // SCL signal pin
#define ARDUINO_SDA_PIN 25//26 // SDA signal pin
#define ARDUINO_AREF_PIN 2 // Aref pin
/*#define ARDUINO_13_PIN 25 // Digital pin 13
#define ARDUINO_12_PIN 24 // Digital pin 12
#define ARDUINO_11_PIN 23 // Digital pin 11
#define ARDUINO_10_PIN 22 // Digital pin 10
#define ARDUINO_9_PIN 20 // Digital pin 9
#define ARDUINO_8_PIN 19 // Digital pin 8
#define ARDUINO_7_PIN 18 // Digital pin 7
#define ARDUINO_6_PIN 17 // Digital pin 6
#define ARDUINO_5_PIN 16 // Digital pin 5
#define ARDUINO_4_PIN 15 // Digital pin 4
#define ARDUINO_3_PIN 14 // Digital pin 3
#define ARDUINO_2_PIN 13 // Digital pin 2
#define ARDUINO_1_PIN 12 // Digital pin 1
#define ARDUINO_0_PIN 11 // Digital pin 0
#define ARDUINO_A0_PIN 2 // Analog channel 0
#define ARDUINO_A1_PIN 3 // Analog channel 1
#define ARDUINO_A2_PIN 4 // Analog channel 2
#define ARDUINO_A3_PIN 5 // Analog channel 3
#define ARDUINO_A4_PIN 28 // Analog channel 4
#define ARDUINO_A5_PIN 29 // Analog channel 5
#define ARDUINO_A6_PIN 30 // Analog channel 6
#define ARDUINO_A7_PIN 31 // Analog channel 7
*/
#define APP_BTN_1 28 //POWER_STATE pin
//#define BAT_ADC 3 //A0
//#define BUZZER_PIN 27
#define BAT_LED_1 16
#define BAT_LED_2 18
#define BAT_LED_3 20
#define BAT_LED_4 30
#define BAT_LED_5 31
#define Pairing_LED 19
#define POWER_OFF 29 //POWER_HOLD pin
#define bat_state 22 //battery charge state
#ifdef __cplusplus
}
#endif
#endif // PCA10040_H
Testing with the NRF52DK board will work normally. Is there a possible hardware problem?
Can I know the cause and solution of this problem?
Thank you.
=========================================================================
In nRF52DK, there is the same problem if I connect the SCL, SDA pin to 26,25 and debug it. Is this a problem with the nrf52832 pin? Should I redesign my hardware?
Thank you.
