Hi, I have problems working with the timing controller as detector. The IP core version is 6.1
For test I connected the generator timing output to the detector input. Configuration of the generator works. I confirmed the output signals.
I tested with the following code:
/* Run selftest example */
Status = XVtcSelfTestExample(VTC_DEVICE_ID);
/* Checking status */
if (Status != (XST_SUCCESS)) {
xil_printf("VTC Selftest Example Failed.\r\n");
return (XST_FAILURE);
}
xil_printf("Successfully ran VTC driver Selftest Example.\r\n");
/* Setup the VTC Source Select config structure. */
/* 1=Generator registers are source */
/* 0=Detector registers are source */
memset((void *)&SourceSelect, 0, sizeof(SourceSelect));
SourceSelect.VBlankPolsrc=1;
SourceSelect.VSyncPolsrc=1;
SourceSelect.HBlankPolsrc=1;
SourceSelect.HSyncPolsrc=1;
SourceSelect.ActiveVideoPolsrc=1;
SourceSelect.ActiveChromaPolsrc=1;
SourceSelect.VChromasrc=1;
SourceSelect.VActivesrc=1;
SourceSelect.VBackPorchsrc=1;
SourceSelect.VSyncsrc=1;
SourceSelect.VFrontPorchsrc=1;
SourceSelect.VTotalsrc=1;
SourceSelect.HActivesrc=1;
SourceSelect.HBackPorchsrc=1;
SourceSelect.HSyncsrc=1;
SourceSelect.HFrontPorchsrc=1;
SourceSelect.HTotalsrc=1;
/* Setup the VTC Polarity config structure. */
memset((void *)&Polarity, 0, sizeof(Polarity));
Polarity.ActiveChromaPol = 1;
Polarity.ActiveVideoPol = 1;
Polarity.VBlankPol = 1;
Polarity.VSyncPol = 0;
Polarity.HBlankPol = 1;
Polarity.HSyncPol = 1;
/* Setup the VTC Signal config structure. */
memset((void *)&SignalCfg, 0, sizeof(XVtc_Signal));
SignalCfg.OriginMode = 1;//Set Frame Origin to Start of Active Video
SignalCfg.HTotal = 7;
SignalCfg.HActiveStart = 0;
SignalCfg.HFrontPorchStart = 3;// Active Video Width
SignalCfg.HSyncStart = 4;// Active Video Width + FP Width
SignalCfg.HBackPorchStart = 5;// Active Video Width + FP Width + Sync Width
SignalCfg.V0Total = 7;
SignalCfg.V0ChromaStart = 0;
SignalCfg.V0ActiveStart = 0;
SignalCfg.V0FrontPorchStart = 3;// Active Video Height
SignalCfg.V0SyncStart = 4;// Active Video Height + FP_Width
SignalCfg.V0BackPorchStart = 5;// Active Video Height + FP Width + Sync Width
/* Write VTC config to HW */
XVtc_RegUpdate(&Vtc);
XVtc_SetPolarity(&Vtc, &Polarity);
XVtc_SetGenerator(&Vtc, &SignalCfg);
XVtc_SetSource(&Vtc, &SourceSelect);
XVtc_DisableSync(&Vtc);// not Synchronize the Generator to the Detector
XVtc_RegUpdateEnable(&Vtc);
/* Enable VTC Generator and Detector*/
XVtc_Enable(&Vtc);
/* Setup the VTC Timing structure. */
memset((void *)&Timing, 0, sizeof(Timing));
memset((void *)&DetSignal, 0, sizeof(DetSignal));
memset((void *)&HoriOffsets, 0, sizeof(HoriOffsets));
memset((void *)&DetPolarity, 0, sizeof(DetPolarity));
while(1)
{
usleep(1000000);
XVtc_GetDetectorPolarity(&Vtc, &DetPolarity);
printStatus();
}
void printStatus()
{
if ((XVtc_GetDetectionStatus(&Vtc) & XVTC_STAT_LOCKED_MASK))
{
xil_printf("locked\n\r");
}else
xil_printf("not locked\n\r");
}
However, detector does never lock. Do I need to update the register somewhere or am I missing something?
many thanks
