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Michael2021's avatar
Michael2021
Icon for Occasional Contributor rankOccasional Contributor
5 years ago

DisplayPort at non GPU mode on Cyclone 10 GX and Quartus pro 20.1

I tried to finalize design non GPU mode. doesn't provide non GPU mode example design. I can't figure it out how to connection Transceiver Native PHY Reconfiguration interface signal ( this signal i...
Michael2021's avatar
Michael2021
Icon for Occasional Contributor rankOccasional Contributor
5 years ago

Thank you

I understand GPU mode on/off function clearly.

I look at bitec_reconfig_alt_c10.v It doesn't have .mif file reading function.

If I need more information , I will let you know.

Thank you again

Michael

Michael2021's avatar
Michael2021
Icon for Occasional Contributor rankOccasional Contributor
5 years ago

Hi

I changed non GPU and rx_phy only mode in dp_0_ example_design and added EDID memory. and Programming FPGA ( 10CX220YF672E6G) in custom board.

Windows 10 recognized new display (1920x1200, 120HZ, Attached pic1). but generated error (attached pic2).

I probed 5 inside signals

1. gxb_rx_analogreset [0] = always "1"

2. gxb_rx_digitalreset [0] = always "1"

3. gxb_rx_analogreset_ack[0] = always "0"

4. rx_analog_reconfig_req = always "0"

5. rx_reconfig_busy = always "1"

I think the digitalreset and analogreset doesn't release,

so it doesn't works transceiver configuration.

Can you recommend any solution ?

Thanks

Michael