sd_flash_write hangs after 10 words written

[Elena]

Hi

I'm learning to use the sd_flash_write function to write words into flash memory. I've the SD enabled, but not advertising, so I'm able to debug. Scheduler is also initialized.

What I get, it is than when executing this little code:

buf[4] = {0, 0, 0, 0};
		for(i=10; i<256;i++){
			buf[0] = i;
			res = sd_flash_write(FLASH_DIR_LAST_PAGE+(i*4), (uint32_t *)buf, 1);
			TIMER_BASE_Delay(1000);
		}

my SW hangs hangs and resets after 9 words written. The 10th word is which hangs the SW. Any idea??? Note than I'm waiting about 1 second between each write operation.

For now, I'm trying to handle the flash memory whitout using the pstorage module. Should I use it?

Thanks in advance

Elena

[Elena]

Hi

Thanks for your reply. You're right: I'm waiting for one second in order to wait sufficient time to perform de operation. One second should be more than sufficient, so I don't understand what's happening.

I'll review my code and check the pstorage module.

Thanks again,

Regards,

Elena

[John]

I don't know why the delay is not working for you. However, I don't have your code so it is hard to tell. Does the call the sd_flash_write ever return anything other than NRF_SUCCESS?

[Elena]

Hi again

I've discovered the problem. My fault: I wasn't calling the scheduler from my loop. I've edited the code as follows:

	for(i=10; i<256;i++){
		buf[0] = i;
		res = sd_flash_write(FLASH_DIR_LAST_PAGE+(i*4), (uint32_t *)buf, 1);
		TIMER_BASE_Delay(1000);
		**app_sched_execute();**
	}

Thanks for your help

Cheers