Hi Moises,
I've sent the sch & Pcb to you, then we have the dpcd issue.
Refer --- SLLA349–September 2014 Sector 6.2 DP130’s DPCD Registers :
A:EVM
The value read from the register is correct with your EVM board+LCD when disconnect PC.
Write the register, then read the value as blow:
| register | write | read |
| 04h | 00h | 00h |
| 00100h | 14h | 02h |
| 00101h | 04h | 0Fh |
| 00103h | 01h | 01h |
| 00104h | 01h | 01h |
| 00105h | 01h | 01h |
| 00106h | 01h | 01h |
| 00600h | 01h | 00h |
| 03h | 10h | 10h |
| 05h | 80h | 80h |
| 05h | 85h | 85h |
| 07h | 05h | 05h |
| 09h | 05h | 05h |
| 0Bh | 05h | 05h |
B: My board
But with my board when disconnect PC ,wirte register same as A:EVM ,read the DPCD value as below ,but different .
| register | write | read |
| 04h | 00h | 00h |
| 00100h | 14h | 01h |
| 00101h | 04h | 00h |
| 00103h | 01h | 00h |
| 00104h | 01h | 00h |
| 00105h | 01h | 00h |
| 00106h | 01h | 00h |
| 00600h | 01h | 00h |
| 03h | 10h | 10h |
| 05h | 80h | 80h |
| 05h | 85h | 85h |
| 07h | 05h | 05h |
| 09h | 05h | 05h |
| 0Bh | 05h | 05h |
Would you please help us to debug it and fix it ?
