Part Number: AM4376
Tool/software: Linux
Hi SIr
We used ti-processor-sdk-linux-am437x-evm-05.00.00.15 for development and connected TTL signal to ADV7125 DAC for VGA output.
And we set 1024x768/@60 output and found the picture lost some horizontal lines in the right half of the picture.
below is the picture and dts setting.
panel-timing {
clock-frequency = <65000000>;
hactive = <1024>;
vactive = <768>;
hfront-porch = <24>;
hback-porch = <160>;
hsync-len = <136>;
vback-porch = <29>;
vfront-porch = <3>;
vsync-len = <6>;
hsync-active = <0>;
vsync-active = <0>;
de-active = <1>;
pixelclk-active = <1>;
};
BTW, we also modified the parameter of hfront-porch and hback-porch. it seems no help and only cause the picture shift.
It seems some RGB signal got lost and caused this issue.
Does TI expert have any suggestion for this or any DSS register to improve this phenomenon ?
BR
Yimin
