DisplayPort Intel® FPGA IP User Guide

ID 683273
Date 4/18/2023
Public

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9.32. btc_dptx_hpd_change

Prototype:

int btc_dptx_hpd_change(
BYTE tx_idx,
unsigned int asserted)

Thread-safe:

No

Available from ISR:

Yes

Include:

< btc_dptx_syslib.h >

Return:

None

Parameters:

  • tx_idx—Source instance index (0 - 3)
  • asserted—0=asserted, 1=deasserted

Description:

This function informs the system library that the RX HPD signal state has changed. Invoke after an HPD stable state change (not after an HPD_IRQ)

Example:

btc_dptx_hpd_change(0, 1);