Kai,
Let's step back for a second.
The blog here attempts to explain several options for modifying the BD_ADDR on the 2073XS: BD_ADDR: Changing BCM20737 Board Address for Production
Admittantly, both the blog and process we describe to change the BD_ADDR is not ideal, many have learned to work within the constraints we impose.
Would OTA updates be an option for your customer? The BD_ADDR is not touched using this process. If my memory serves me correctly, non-secure OTA was supported on the 20732 you are using in the design.
If this is not an option, the blog noted above attempts to explain another command line process that may work as well.
The example Perl script assumes a random number is being generated, but the script could be changed to either cycle through a block of fixed addresses starting at x and ending with y, or in your case, always contain the desired fixed value.
For example, if you look inside the .pl file, there is just a single line of code: $$r=int(rand(20480)); printf "00101801%04X",$$r; That’s really just a random number generator for the lower 12 bits of the address.
It then tacks that onto a fix value that is the upper 24 bits (BRCM OUI number).
Here’s the batch file that’s also included in the zip file attached to the blog references above:
@for /F "tokens=1*" %%i IN ('perl.exe mac.pl') DO @(
cgs.exe -D . -O DLConfigBD_ADDRBase:%%i -A 0xFF000000 -B 20737_EEPROM.btp -I output.hex --cgs-files A_20737A1-wiced_sense-rom-ram-spar.cgs
Chipload.exe -BLUETOOLMODE -PORT %1 -BAUDRATE 115200 -MINIDRIVER uart_DISABLE_EEPROM_WP_PIN1.hex -BTP 20737_EEPROM.btp -CONFIG output.hex -CHECKCRC -NOVERIFY -DLMINIDRIVERCHUNKSIZE 251
@echo Download Complete
echo BD_ADDR: %%i
)
This batch file appears to run on a PC and call the Perl script, generate the random BD_ADDR, then take that value (%%i ) and pass it to the DLConfigBD_ADDRBase option in cgs.exe at the address of 0xFF000000.
Chipload is then called to program the part with the new random address.
So what it would essentially do is look at your hex file, program the BD_ADDR at the address specified, load the hex file onto your customer's board.
<wait for user input>
They would then swap out another one of thier boards look at your hex file, program the BD_ADDR at the address specified, load the hex file onto the board.
<wait for user input>
Continue process until all of the boards are updated.
