How to upload a hex file to external qspi flash by nrfjprog

[Justin_Yeh]

Hi Sir 

Is it possible write a hex file to external QSPI flash by nrfjprog ? if yes, please tell me what's the command ?  Thank you.

ps, the hex file is data, not firmware.

[Jared]

Hi,

Yes, from the help section of nrfjprog tools:

--memwr <addr> --val <val> Writes to the provided
address in memory with the help of the NVM
Controller or, if your device is equipped with a
QSPI peripheral and the address to write belongs
to the XIP region, with the help of the QSPI
peripheral to an external memory device. To
determine if an external memory device is present,
nrfjprog checks the MemSize parameter from
QspiDefault.ini file or the QSPI configuration ini
file that is given with the --qspiini option.
The first address of the region is considered as
address 0 of the external memory device. If the
target address is flash (either internal or in the
external memory device) and not erased, the
operation will fail. This command can be combined
with the --verify operation.

Best regards

Jared

[Justin_Yeh]

Could you give me a example ? if I have a hex file. Thanks. 

[Jared]

If you want to write to a certain value at a specific address you can use --memwr. If however you have a hex file you can use: 

nrfjprog --program file.hex --chiperase

The pins that are used are the ones specified in the QspiDefault.ini file. Make sure that the address that are written to in the hex files is within the XIP region.

Best regards

Jared