Other Parts Discussed in Thread: DLP670S, DLPLCR67EVM, DLPLCRC900DEVM
Tool/software:
I have designed a PCB for a dual controller DMD system. The PCB contains 2x DLPC900 and 1x DLP670S. The circuit is based on the "dlplcr900devm_SCH" and "dlplcr67evm" schematics.
Now the two DLPC900 controllers are programmed with -primary and -secondary firmware, D7 and D9 are flashing once powered up or pressed the reset button on the PCB, and GUI can communicate with the board.
However, the board always stays in Standby mode, if I click the Normal radio-button, it will go back to standby mode after a few seconds. If I click the GUI's Reset button, it will go into Normal mode but the secondary controller will not startup and D9 is not flashing. When I tried to upload LUT, the GUI showed an error that Send command to Secondary failed, see the screenshot below. The secondary controller can startup again only if the PCB reset button is pressed but the board will always be in standby mode.
Please help.
Kind regards
Hongtao