Programming nRF9E5 through AT25320B

[Cy]

Hello,

I understand the nRF9E5 is programmed through the externally attached AT25320B, ok. I understand three bytes are appended to the .hex file for the 8051. Since I am programming the AT25320B from the hex file do I need to decipher the .hex file and send only the pertinent bits? Example, :060000000B0309020928B0, therefore the B, 3, and 9 are the actual first three bytes into the EEprom? And that B means that the ee prom communicates at greater than 1MHz, and the clock speed of the system is 16MHz?

Thank you for considering my problem.

[ovrebekk]

Hi

Have you read chapter 21.2 in the nRF9E5 Product Specification?

Table 60 shows how the first three bytes should be coded. The first byte is used for the Version, Speed and XO_FREQ fields. The second byte is the code start offset, and the third byte is the number of 256 byte blocks used by the program.

In other words you shouldn't split up the fields like you did in your example.

Best regards
Torbjørn