I am testing C6678 SPI boot in our board which contains 5 TMX320C6678CYP Rev0.2 and no I2C EEPROM contained. I have realized spi boot in EVM board TMDXEVM6678L Rev0.2 , but I am very confused that I can’t realize it in our board. I do not know the difference between them, is the Rom boot code different?is the boot parameter table different? and is the DIP switch for SPI boot different?
I learned from a earlier post that It is poossible to boot C6678 directly from SPI Nor Flash, without the participation of I2C,that is to say, comparing the EVM board,the procedure different in our board is that the IBL code does not need to be burned. I just burn the spi boot code into the Nor flash , it is as follows:
1.transform the .OUT file to .ccs file.
I think this procedure is the key to solve our problem,but I don't know the specific problem,because I have tried many times to change the code burned. I don't know the format of the code ,do the boot parameter need in our board（it is need in EVM board） ? if it is needed,what is the format（in the EVM ,the format is:
boot mode 50
port num 0
CPU Freq Mhz 800
bus FreqMhz 0
bus Freqkhz 500
the endian format : big of little（it is big endian in the EVM board）?
it is better to supply with a utility which can transition the .out to .ccs which can be used in the user board.
2.Burn the code into the nor flash,the nor flash starting address is 0.
3.change the bootmode pin[12:0]=0b0001000000110.
Has anyone realized spi boot in their user's board? if there is ,can you send me your burned code ?thank you.
The problem has been solved,the reason is that the mode in the spi boot parameter is not right,after changing it from 0 to 1,the spi boot success.
I have tried to boot from SPI for more then 6 months without success.
Can you send me the first page of your hex PROM file and a desribtion of how to make a hex file from the texas files ?
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