RE: nvmc writing hangs after enabling Softdevice

Karl — Fri, 06 Jun 2014 02:08:26 GMT

Sorry for my being careless reading s110 6.0.0 migration doc, the problem I met is written clearly in it. Thanks for your help. It's good to have you guys here :)

RE: nvmc writing hangs after enabling Softdevice

Håkon Alseth — Thu, 05 Jun 2014 13:20:52 GMT

Writing to flash has been moved into the softdevice from v6.0.0 and newer. If you look at the file nrf_soc.h, you have functions for writing and erasing.

To write into flash:

...
err_code = sd_flash_write(dest_addr, buffer, sizeof(buffer));
...

Then you will get a callback in the system event handler set in "softdevice_sys_evt_handler_set". Let's call this callback function "sys_evt_dispatch" (as we do in our examples):

static void sys_evt_dispatch(uint32_t sys_evt)
{
 ...
/* Handle sys_evt cases NRF_EVT_FLASH_OPERATION_SUCCESS and  NRF_EVT_FLASH_OPERATION_ERROR */  
 ...
}

Remember that your buffer must either be global, or you have to set a flag in a while-loop to ensure that the buffer is still on the stack.