I'm tying to read and write external memory using Spi bus
when I flash only the softdevice and the app, the program works fine
but when I flash the bootloader, the program hang (does't get out of the loop below).
it's really a matter of bootloader flashing, I always replicate the behavior :
-
without bootloader it's working (not blocking at
while (read_status_register(&spi) & 0x01) {};) -
with bootloader it's blocking
I have no issue with SPI configurations, it works well without bootloader
with the bootloader I flashed, the DFU works fine anyway
How does the running sequence work when bootloader present?
Can the bootloader configure some IO even when the app is running
the program freeze exaclty when calling nrf_drv_spi_transfer . the PINS used for SPI are P19, P20 P21 P22. once nrf_drv_spi_transfer is called the device is no longer detected. I had to call nrfjprog --recover to reflash it again
