Hi,
I am trying to toggle an LED in bootloader, adding nrf_gpio_cfg_output/write has no effect to the code. The code compiles without errors but doesnt seem to be executed. What config option am I missing?
Any pointers to this can be very helpful.
Thanks
chaitz
Are you even executing the bootloader? I'd start by adding a breakpoint to the bootloader to verify that you're actually executing it.
Yes, I have tried that already. The boot loader is executing and breakpoints can be added to other statements too.
Yes, I have tried that already. The boot loader is executing and breakpoints can be added to other statements too.
Hmm that's wierd.
Do you mind sharing your bootloader code?
/**
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
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* 5. Any software provided in binary form under this license must not be reverse
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*/
/** @file
*
* @defgroup bootloader_secure_ble main.c
* @{
* @ingroup dfu_bootloader_api
* @brief Bootloader project main file for secure DFU.
*
*/
#include <stdint.h>
#include "boards.h"
#include "nrf_mbr.h"
#include "nrf_bootloader.h"
#include "nrf_bootloader_app_start.h"
#include "nrf_bootloader_dfu_timers.h"
#include "nrf_dfu.h"
#include "nrf_log.h"
#include "nrf_log_ctrl.h"
#include "nrf_log_default_backends.h"
#include "app_error.h"
#include "app_error_weak.h"
#include "nrf_bootloader_info.h"
#include "nrf_delay.h"
static void on_error(void)
{
NRF_LOG_FINAL_FLUSH();
#if NRF_MODULE_ENABLED(NRF_LOG_BACKEND_RTT)
// To allow the buffer to be flushed by the host.
nrf_delay_ms(100);
#endif
#ifdef NRF_DFU_DEBUG_VERSION
NRF_BREAKPOINT_COND;
#endif
NVIC_SystemReset();
}
void app_error_handler(uint32_t error_code, uint32_t line_num, const uint8_t * p_file_name)
{
NRF_LOG_ERROR("%s:%d", p_file_name, line_num);
on_error();
}
void app_error_fault_handler(uint32_t id, uint32_t pc, uint32_t info)
{
NRF_LOG_ERROR("Received a fault! id: 0x%08x, pc: 0x%08x, info: 0x%08x", id, pc, info);
on_error();
}
void app_error_handler_bare(uint32_t error_code)
{
NRF_LOG_ERROR("Received an error: 0x%08x!", error_code);
on_error();
}
/**
* @brief Function notifies certain events in DFU process.
*/
static void dfu_observer(nrf_dfu_evt_type_t evt_type)
{
switch (evt_type)
{
case NRF_DFU_EVT_DFU_FAILED:
case NRF_DFU_EVT_DFU_ABORTED:
case NRF_DFU_EVT_DFU_INITIALIZED:
bsp_board_init(BSP_INIT_LEDS);
bsp_board_led_on(BSP_BOARD_LED_0);
bsp_board_led_on(BSP_BOARD_LED_1);
bsp_board_led_off(BSP_BOARD_LED_2);
break;
case NRF_DFU_EVT_TRANSPORT_ACTIVATED:
bsp_board_led_off(BSP_BOARD_LED_1);
bsp_board_led_on(BSP_BOARD_LED_2);
break;
case NRF_DFU_EVT_DFU_STARTED:
break;
default:
break;
}
}
/**@brief Function for application main entry. */
int main(void)
{
uint32_t ret_val;
// Protect MBR and bootloader code from being overwritten.
ret_val = nrf_bootloader_flash_protect(0, MBR_SIZE, false);
APP_ERROR_CHECK(ret_val);
ret_val = nrf_bootloader_flash_protect(BOOTLOADER_START_ADDR, BOOTLOADER_SIZE, false);
APP_ERROR_CHECK(ret_val);
(void) NRF_LOG_INIT(nrf_bootloader_dfu_timer_counter_get);
NRF_LOG_DEFAULT_BACKENDS_INIT();
NRF_LOG_INFO("Inside main");
nrf_gpio_cfg_output (11);
nrf_gpio_pin_set (11);
ret_val = nrf_bootloader_init(dfu_observer);
APP_ERROR_CHECK(ret_val);
// Either there was no DFU functionality enabled in this project or the DFU module detected
// no ongoing DFU operation and found a valid main application.
// Boot the main application.
nrf_bootloader_app_start();
// Should never be reached.
NRF_LOG_INFO("After main");
}
/**
* @}
*/
Just adding 2 lines to existing secure bootloader example file, to config pin 11 as output and set it, doesn't work (line 142, 143).
I need you to set a breakpoint on line 144 and read the GPIO registers called PIN_CNF[11] and OUTSET. If they are set correctly then the GPIO is working.
Hi,
Thanks for the response. Its all working now, I just figured out that there was another GPIO to be configured before setting pin 11. I obviously missed this in the schematic!! Apologies for this ticket, please this question. And many thanks for your time.