Hello.
We are struggeling to get the DSI interface working. When connecting the bridge to a monitor @ 640x480/60Hz, we get a picture that turns on and off.
The DSI uses only channel A, four lanes of data.
We have checked the DSI interface timing, and it indicates good margins for both setup and hold times. But when checking the interrupt registers we see a bunch of errors related to the DSI interface. At least that is how we read it.
The DSI clock runs at 600MHz - which to me seems rather fast.
Can you elaborate on the following interrupts, and how to mitigate.
these two interrupts asserts every time the screen goes black/clears.
CHA_EOT_SYNC_ERR
CHA_SOT_SYNC_ERR
these interrupts asserts at different times, but only when screen goes black/clears
LOSS_OF DP_SYNC_LOCK_ERR
DPTL_UNEXPECTED_PIXEL_DATA ERR
DPTL_UNEXPECTED_HSYNC_ERR
DPTL_UNEXPECTED_VSYNC_ERR
This one we have only seen once, at interrupt enable. But never came back when cleared.
PLL_UNLOCK
These I guess is unrelated to the problem:
SEND_INT
LT_PASS.
Looking forward to hear from your
Best Regards
Henrik Buhl Nielsen
Prevas A/S
