Original question:
Hello Ross,
I have tried selecting "External vedio port" as source with 1152x576. But we got the following error "source error 674.(External source parallel port pixel clock frequency is not within the allowable range.). "
Hope to get your help as soon as possible!
Thanks,
yang
Hi Yang,
This may be because your computer settings are not set to 1152 x 576. Go to display settings and check the 2nd display which will be the EVM.
Ensure that the resolution is set to 1152 x 576.
You can also check these advanced settings. Make sure in the last screen to click 1152 x 576 60Hz option.
Hope this helps.
Thanks,
Alex Chan
Hello Alex-
I'm sorry it didn't work for me.
I have tried all the external video interface options with 1152x576. All modes output “external source parallel port pixel clock frequency is not within the allowable range” or “External source Open LDI port pixel clock frequency is not within the allowable range.”
Do you have any suggestions?
Thanks,
yang
Hi Yang,
Are you using HDMI and trying to display content from a computer or laptop? I would double check the HDMI cable and the only options with HDMI are the Ext_Par_1152x576_60Hz or the Ext_Par_1152x1152_60Hz.
Also you can see this video at the 3:20 minute mark on how to show external content from your laptop onto the EVM.
Thanks,
Alex Chan
Hello Alex-
I saw the video about how to display the external content in the laptop on EVM，and I did.
But it still reports an error: “external source parallel port pixel clock frequency is not within the allowable range”.
Can you explain the mistake?Are there any other solutions?
Hope to get your help as soon as possible.
Thanks,
yang
Hello Yang -
Can you please provide details of your setup? I assume you are using the DLP5530PGUQ1EVM, correct?
For the video source, is it a simple PC / laptop with HDMI output? Typically the EDID on the EVM provides the proper video configuration for the PC to output.
For the DLPC230 firmware project, here is the expected timings:
Please ensure your input Pixel Clock frequency is between 39MHz and 46MHz.
Regards,
Ross
Hello Ross -
I am using a new DLP5530PGUQ1EVM. For video sources, it is a simple laptop with HDMI output.
The following picture is given by you. Where did you transfer it. I didn't find this page in "dlp230 control program 1.8". I hope to give guidance!
Here are some of the information I found.I haven't made any changes to the pixel clock frequency. What should I do if it needs to be modified?
What should I do? I hope to get your help as soon as possible!
Regards,
yang
