Can't open file CC2531ZNP-Prod.hex.

[Morten Brandstrup]

Running a Pi4 lite os.
thinks looks fine, until I try to flash:

pi@raspberrypi:/flash_cc2531 $ ./cc_chipid
ID = b524.
pi@raspberrypi:/flash_cc2531 $ ./cc_read save.hex
ID = b524.
reading 256k/256kpi@raspberrypi:/flash_cc2531 $ ./cc_erase
ID = b524.
erase result = 00a2.
**pi@raspberrypi:/flash_cc2531 $ ./cc_write CC2531ZNP-Prod.hex
Can't open file CC2531ZNP-Prod.hex
pi@raspberrypi:~/flash_cc2531 $ ./cc_chipid
ID = b524.

[Jean Michault]

You need to download CC2531ZNP-Prod.hex from Z-Stack-firmware site :

https://github.com/Koenkk/Z-Stack-firmware/raw/master/coordinator/Z-Stack_Home_1.2/bin/default/