NRF52DK. NRF_BREAKPOINT_COND (ERROR 4 [NRF_ERROR_NO_MEM]).

[Sergeant]

Hello. 

I get an error NRF_BREAKPOINT_COND. I use nRF5_SDK_17.0.2, s132_nrf52_7.2.0_softdevice and my kit - nRF52-DK. 

An error occurs when trying to swap UART pins (Change  RX_PIN_NUMBER 3 (8) and  TX_PIN_NUMBER 4 (6) )  in example nRF5_SDK_17.0.2_d674dde \ examples \ ble_peripheral \ ble_app_uart:

#define PCA10040_H

#ifdef __cplusplus
extern "C" {
#endif

#include "nrf_gpio.h"

// LEDs definitions for PCA10040
#define LEDS_NUMBER 4

#define LED_START 17
#define LED_1 17
#define LED_2 18
#define LED_3 19
#define LED_4 20
#define LED_STOP 20

#define LEDS_ACTIVE_STATE 0

#define LEDS_INV_MASK LEDS_MASK

#define LEDS_LIST { LED_1, LED_2, LED_3, LED_4 }

#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 BUTTONS_NUMBER 4

#define BUTTON_START 13
#define BUTTON_1 13
#define BUTTON_2 14
#define BUTTON_3 15
#define BUTTON_4 16
#define BUTTON_STOP 16
#define BUTTON_PULL NRF_GPIO_PIN_PULLUP

#define BUTTONS_ACTIVE_STATE 0

#define BUTTONS_LIST { BUTTON_1, BUTTON_2, BUTTON_3, BUTTON_4 }

#define BSP_BUTTON_0 BUTTON_1
#define BSP_BUTTON_1 BUTTON_2
#define BSP_BUTTON_2 BUTTON_3
#define BSP_BUTTON_3 BUTTON_4

#define RX_PIN_NUMBER 3
#define TX_PIN_NUMBER 4
#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 27 // SPI clock GPIO pin number.
//#define SER_APP_SPIM0_MOSI_PIN 2 // SPI Master Out Slave In GPIO pin number
//#define SER_APP_SPIM0_MISO_PIN 26 // 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 11 // Pin used to reset connectivity chip

//// Arduino board mappings
//#define ARDUINO_SCL_PIN 27 // SCL signal pin
//#define ARDUINO_SDA_PIN 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 3 // Analog channel 0
//#define ARDUINO_A1_PIN 4 // Analog channel 1
//#define ARDUINO_A2_PIN 28 // Analog channel 2
//#define ARDUINO_A3_PIN 29 // Analog channel 3
//#define ARDUINO_A4_PIN 30 // Analog channel 4
//#define ARDUINO_A5_PIN 31 // Analog channel 5

#ifdef __cplusplus
}
#endif

#endif // PCA10040_H

Project memory setting:

What needs to be changed in the project so that the error does not occur?

Thanks.

[Kenneth]

Can you provide the entire text in the debug terminal window?

Wild guess: When changing RX pin, make sure it's pulled high externally (e.g pull-up or that an external device pull it logic high).

Kenneth

[Sergeant]

Does it neede to be done hardwearly, or specifyed it in the program?

[Kenneth]

To reduce leakage through the pull-up when there is serial data I suggest to use a large pull-up resistor, such as >100kohm pull-up.

Kenneth

[Sergeant]

Thanks Kenneth!

I connected from my phone. In Now there is a message: Data len is set to 0xF4(244)

How to fix it?

[steelman.kwon]

Hi 

I have exactly the same problem.
ERROR Code is 4 (NRF_ERROR_NO_MEM).
Perhaps, only the nus(ble_app_uart) example has the same problem.

I also pulled up the RX pin (on an oscilloscope, it's high), but that doesn't solve the problem.
Also, even if the USB to UART Dongle is connected to the corresponding pin and connected to the PC (in this way, the RX pin remains high), the problem is not solved.

Do you have any other solution other than pull-ups?

[Kenneth]

Please create a new case, and also specify which api that return NRF_ERROR_NO_MEM.

Kenneth