7044 - MachXO2/XO3: How to have successful dual-boot with SPI flash with MachXO2/MachXO3 devices?
To have successful dual-boot for MachXO2/MachXO3 please change CRC settings of the generated bitstream of Lattice Diamond Software using the Deployment tool.
See below for the steps:
1.Open Deployment Tool then select File Conversion and Bitstream:
2. Select the bitstream .bit file then press next.
3. Set the CRC calculation to Frame CRC.
4. Generate new bitstream:
Take note that this bitstream setting modification is only used for EXTERNAL SPI FLASH. For internal flash, always use the jed file generated.
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