Hi All,
We are facing issues with the Audio Interface on DVR-RD Kit and it is not working.
After analyzing the Schematics we have the following queries:
1: We understand that TVP5158 operates in Master Mode where clock is generated by TVP5158 and CPU operates in Slave Mode.
This clock is given to CPU on McASP0, CLKX (Pin – AH30 of CPU, i.e. Clock transmit pin of CPU via resistor R491)
Is this connection correct?
Since TVP5158 operates in Master Mode, CPU should receive clock on McASP0, CLKR (Pin – AK28 of CPU, i.e. Clock receive pin of CPU via resistor R490)
I.e. Resistor 490 should be assembled and resistor 491 should be NC.
Kindly confirm if our understanding is correct?
2: Similarly for McASP0 Transmit Frame Sync Signals
The frame Sync signals should come from TVP5158 to McASP0 Frame Sync Receive pins (AG29 on CPU), but in schematics it comes to McASP0 Frame Sync Transmit pins (AJ31 on CPU).
I.e. Resistor 493 should be assembled and resistor 492 should be NC.
Kindly confirm if our understanding is correct?
If our understanding is incorrect, then let us know what setup changes we need to do to make the Audio interface operational.
PS: We are referring DM8168_DVR_RDK_MAIN BOARD_REV08_SCHEMATIC.pdf Schematics.
Firmware Version: VER_02.80.00.11
Hardware Version: 0.8