Other Parts Discussed in Thread: SN65DSI83
Hi all,
As I know OMAP5432 supports MIPI D-PHY standard v1.1 and SN65DSI83 supports MIPI D-PHY standard v1.0, however the maximum transmitter swing amplitude has the same definition both on LP: 1.2V (peak) and HS: 200mV (peak).
I tried to measure the high speed swing on SN65DSI83 input side. Please refer following waveforms.
1. Input frequency
2. Input jitter
3. Input rise
I found the high speed swing around 340mV. It seemed the result was out of spec both on OMAP5432 and SN65DSI83. But the strange way is I can still get the right display on LCD panel.
Here are my concerns as below.
1. May I know the measurement is correct or not? If not, please provide the standard method for MIPI D-PHY signal check.
2. Assume 340mV from OMAP5432 could not be changed swing, please help to confirm SN65DSI83 can still support this swing amplitude or not.
Thanks in advance.
B.R.
OC
