Part Number: TMS320F28377D Hi, I have a bootloader that resides in an EEPROM that can be run from both CPU's. It successfully boots from SPI at powerup and I can use it to download an image to Flash and run it so the boot pins and boot mode seem to be working fine for both CPU's. However, after programming the Z1 CSM password (regs 2 and 3, not ECSL at 0 and 1) and the GRABRAM and GRABSECT to set all flash sectors and RAM to Zone 1 it will not boot from EEPROM. Using a scope, it looks like it's in a loop of trying to read from the EEPROM as there are constant bursts of clock pulses on the pin. Does this have to do with being unable to copy data into secure RAM from outside of the processor? Is it possible to load code from an EEPROM on a locked device or should we move the bootloader from EEPROM to flash? Let me know if something is unclear or if I should add more information. Thanks, - Taylor
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