I am having an issue where i cant reprogram the CDCM after start up. I'm using an FPGA to program it, and as everything comes online the FPGA is able to successfully program the CDCM on power up, but it can not be re programed afterwards.
As far as I can tell the CDCM is receiving the CTRL_DATA, CTRL_CLK, and CTRL_LE no differently as it does during start up. Manually triggering PD pin while the system is running resets it to the factory default settings, but then i can not reprogram it even when i send the same commands in the same order as start up, a power cycle is the only time i can observe it programed. Below are the words i am sending out in that order.
Is there a particular sequence we need to follow?
Word 0: 0x7000
Word 1: 0x67E7F81
Word 2: DB6DB4A2
Word 3: 0x27
Any help would be appreciated!
Thanks
