MCU to program Boot-Prom

Hi All,

as the title said. I want to use a MCU to program the Boot-Prom. I already have USB and SPI working on a MCU, so it would be easy to use this to program the FPGA.

For the hardware, the datasheet says it all, it should work just fine.

However, for the software part, I am not sure and need your help.

1 )Lets say I have a .hexout file ready to be loaded. I can read the .hexout file as a Hex file:

Starting with the begining of the file, I have:

:020000040000FA (hexout header for begining of file .. not to be sent)

:80000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF6AD6FF7F000CFB05006AD6FF7F000CFB .... etc

:8000800015511115511115511115511... etc

:80010000000000000000000000000000000000001AA1111AA... etc

If I have a .rbf file, the first two lines are:

ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 6a d6 ff 7f 00 0c fb 05 00 6a d6 ff 7f 00 0c fb

So there is obviously some bytes that are not to be written. If I understand correctly, in hexout format the 8xxxxxxx are not to be send and ALL the bytes of the rbf file need to be sent???

2) Do I need to re-order the bytes as in the PS Config?

Thanks