NRF52 Bootloader Switch Between Applications

RE: NRF52 Bootloader Switch Between Applications

Oussama — Wed, 29 Jan 2020 15:43:50 GMT

Thank you for the answer.

I was already doing that. But i was also forwarding interrupts to the start address of my application using the SD_MBR_COMMAND_IRQ_FORWARD_ADDRESS_SET command.

So the jump to the application was being executed successfully but the application was crashing after calling nrf_sdh_enable_request().

So after removing the forward command, the application launched without any problem.

RE: NRF52 Bootloader Switch Between Applications

Dmitry — Wed, 29 Jan 2020 10:55:47 GMT

Hi,

you can jump from bootloader to your firmware with this function:

static sd_mbr_command_t init_sd_command = {SD_MBR_COMMAND_INIT_SD, };

void jump_to_fw(uint32_t fwaddr)
{
	sd_mbr_command(&init_sd_command);
	sd_softdevice_vector_table_base_set(fwaddr);
	uint32_t app_start_ptr = ((uint32_t *)fwaddr)[1];  // get start address from vector table
	((void (*)()) app_start_ptr) ();
}