Altera DisplayPort MegaCore Function - Manual (Page 109)

btc_dprx_hpd_get
Prototype:
int btc_dprx_hpd_get(BYTE rx_idx)
Thread-safe: Yes
Available from ISR: Yes
Include:
Return: 0 = success, 1 = fail
Parameters:
rx_idx—
Sink instance index (0 - 3)
Description: Returns the current logic level of the RX HPD.
Example:
btc_dprx_hpd_get(0);
Related Information
• btc_dprx_hpd_pulse on page 8-8
• btc_dprx_hpd_set on page 8-9
btc_dprx_hpd_pulse
Prototype:
void btc_dprx_hpd_pulse(BYTE rx_idx)
Thread-safe: Yes
Available from
ISR:
Yes
Include:
< btc_dprx_syslib.h >
Return: –
Parameters: rx_idx
—Sink instance index (0 - 3)
Description: This function deasserts (i.e., sets to 0) the RX HPD for 750 s. You can use this function to
send an
IRQ_HPD
pulse to the connected DisplayPort source. Before invoking this
function, you must have invoked
btc_dprx_hpd_set
with level = 1 (i.e., HPD must be set
to 1).
Example:
btc_dprx_pulse(0);
8-8 btc_dprx_hpd_get
UG-01131
2015.05.04
Altera Corporation DisplayPort API Reference
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