On Tue, Aug 16, 2022 at 02:09:18PM +0800, Xu Yilun wrote: > We don't have to make everything fine, but start with machxo2 and ecp5 > first. If the change affects machxo2, other people may help. Programming MachXO* chips uses different sequences of commands. With ECP5 you put the chip into configuration mode and then upload the bitstream into RAM cells. With MachXO chips you write the bitstream to non-volatile storage and then tell the chip to go into configuration mode where it automatically loads the bitstream from non-volatile storage. There is no way to directly write the RAM cells. Best regards, Daniel
