/**@brief Function for bootloader main entry.
*/
int main(void)
{
uint32_t err_code;
bool dfu_start = false;
bool app_reset = (NRF_POWER->GPREGRET == BOOTLOADER_DFU_START);
// This check ensures that the defined fields in the bootloader corresponds with actual
// setting in the nRF51 chip.
APP_ERROR_CHECK_BOOL(*((uint32_t *)NRF_UICR_BOOT_START_ADDRESS) == BOOTLOADER_REGION_START);
APP_ERROR_CHECK_BOOL(NRF_FICR->CODEPAGESIZE == CODE_PAGE_SIZE);
// Initialize.
timers_init();
gpiote_init();
buttons_init();
bootloader_init();
// Check if we reset in the middle of a firmware update
if (bootloader_dfu_sd_in_progress()) {
err_code = bootloader_dfu_sd_update_continue();
APP_ERROR_CHECK(err_code);
softdevice_init(!app_reset);
scheduler_init();
err_code = bootloader_dfu_sd_update_finalize();
APP_ERROR_CHECK(err_code);
} else {
// If stack is present then continue initialization of bootloader.
softdevice_init(!app_reset);
scheduler_init();
}
// Check if the Bootloader Control pin is low. If so, enter the bootloader
// mode.
dfu_start = (nrf_gpio_pin_read(BOOTLOADER_CTRL_PIN) == 0);
// If the Bootloader Control pin is low or the application in the flash
// is not valid, enter the bootloader mode.
if (dfu_start || (!bootloader_app_is_valid(DFU_BANK_0_REGION_START))) {
err_code = sd_power_gpregret_clr(POWER_GPREGRET_GPREGRET_Msk);
APP_ERROR_CHECK(err_code);
// Initiate an update of the firmware.
err_code = bootloader_dfu_start();
APP_ERROR_CHECK(err_code);
}
// If the application was or now is valid, run it
if (bootloader_app_is_valid(DFU_BANK_0_REGION_START)) {
// Select a bank region to use as application region.
// @note: Only applications running from DFU_BANK_0_REGION_START is supported.
bootloader_app_start(DFU_BANK_0_REGION_START);
}
NVIC_SystemReset();
}
/*!
@brief Handler for general errors above the SoftDevice layer.
Typically we can' recover from this so we do a reset.
*/
void app_error_handler(uint32_t error_code, uint32_t line_num, const uint8_t *p_file_name)
{
ASSERT_STATUS_RET_VOID( error_code );
// Set info that reboot occurred due to soft error
sd_power_gpregret_clr(0xFFFFFFFF);
sd_power_gpregret_set(0xFADE0002/*GP_REG_RET_APP_ERROR_CAUSE_REBOOT*/);
NVIC_SystemReset();
}
uint32_t ble_dfu_buttonless_bootloader_start_finalize(void)
{
uint32_t err_code;
NRF_LOG_DEBUG("In ble_dfu_buttonless_bootloader_start_finalize\r\n");
err_code = sd_power_gpregret_clr(0, 0xffffffff);
VERIFY_SUCCESS(err_code);
err_code = sd_power_gpregret_set(0, BOOTLOADER_DFU_START);
VERIFY_SUCCESS(err_code);
// Indicate that the Secure DFU bootloader will be entered
m_dfu.evt_handler(BLE_DFU_EVT_BOOTLOADER_ENTER);
// Signal that DFU mode is to be enter to the power management module
nrf_pwr_mgmt_shutdown(NRF_PWR_MGMT_SHUTDOWN_GOTO_DFU);
return NRF_SUCCESS;
}
/**@brief Function for preparing the reset, disabling SoftDevice, and jumping to the bootloader.
*
* @param[in] conn_handle Connection handle for peer requesting to enter DFU mode.
*/
static void bootloader_start(uint16_t conn_handle)
{
uint32_t err_code;
uint16_t sys_serv_attr_len = sizeof(m_peer_data.sys_serv_attr);
err_code = sd_ble_gatts_sys_attr_get(conn_handle,
m_peer_data.sys_serv_attr,
&sys_serv_attr_len,
BLE_GATTS_SYS_ATTR_FLAG_SYS_SRVCS);
if (err_code != NRF_SUCCESS)
{
// Any error at this stage means the system service attributes could not be fetched.
// This means the service changed indication cannot be sent in DFU mode, but connection
// is still possible to establish.
}
m_reset_prepare();
err_code = sd_power_gpregret_clr(0xFF);
APP_ERROR_CHECK(err_code);
err_code = sd_power_gpregret_set(BOOTLOADER_DFU_START);
APP_ERROR_CHECK(err_code);
err_code = sd_softdevice_disable();
APP_ERROR_CHECK(err_code);
err_code = sd_softdevice_vector_table_base_set(NRF_UICR->NRFFW[0]);
APP_ERROR_CHECK(err_code);
dfu_app_peer_data_set(conn_handle);
NVIC_ClearPendingIRQ(SWI2_IRQn);
interrupts_disable();
bootloader_util_app_start(NRF_UICR->NRFFW[0]);
}
/**@brief Function for bootloader main entry.
*/
int main(void)
{
uint32_t err_code;
bool dfu_start = false;
bool app_reset = (NRF_POWER->GPREGRET == BOOTLOADER_DFU_START);
leds_init();
// This check ensures that the defined fields in the bootloader corresponds with actual
// setting in the nRF51 chip.
APP_ERROR_CHECK_BOOL(*((uint32_t *)NRF_UICR_BOOT_START_ADDRESS) == BOOTLOADER_REGION_START);
APP_ERROR_CHECK_BOOL(NRF_FICR->CODEPAGESIZE == CODE_PAGE_SIZE);
// Initialize.
timers_init();
gpiote_init();
buttons_init();
(void)bootloader_init();
if (bootloader_dfu_sd_in_progress())
{
err_code = bootloader_dfu_sd_update_continue();
APP_ERROR_CHECK(err_code);
ble_stack_init(!app_reset);
scheduler_init();
err_code = bootloader_dfu_sd_update_finalize();
APP_ERROR_CHECK(err_code);
}
else
{
// If stack is present then continue initialization of bootloader.
ble_stack_init(!app_reset);
scheduler_init();
}
dfu_start = app_reset;
// dfu_start |= ((nrf_gpio_pin_read(BOOTLOADER_BUTTON_PIN) == 0) ? true: false);
if (dfu_start || (!bootloader_app_is_valid(DFU_BANK_0_REGION_START)))
{
err_code = sd_power_gpregret_clr(POWER_GPREGRET_GPREGRET_Msk);
APP_ERROR_CHECK(err_code);
nrf_gpio_pin_set(LED_0);
// Initiate an update of the firmware.
err_code = bootloader_dfu_start();
APP_ERROR_CHECK(err_code);
nrf_gpio_pin_clear(LED_0);
}
if (bootloader_app_is_valid(DFU_BANK_0_REGION_START))
{
leds_off();
// Select a bank region to use as application region.
// @note: Only applications running from DFU_BANK_0_REGION_START is supported.
bootloader_app_start(DFU_BANK_0_REGION_START);
}
nrf_gpio_pin_clear(LED_0);
nrf_gpio_pin_clear(LED_1);
NVIC_SystemReset();
}
void sd_clrBootloader(uint8_t mask)
{
sd_power_gpregret_clr(mask);
}
