RomanRom2/ossc
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Set fast output on HDMI_TX pins.

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Also adjust timing constraits to reflect working state with line3x at
162 MHz.
This commit is contained in:
Russell Harmon committed 2020-06-14 09:54:06 +00:00
1 parent a6d8c51ddd
commit c2b0687e7b
3 files changed
+41 -4
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ossc.sdc
+4 -4
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@@ -10,8 +10,8 @@ set_false_path -to {sys:sys_inst|sys_pio_1:pio_1|readdata*}
### Scanconverter clock constraints ###
create_clock -period 108MHz -name pclk_1x [get_ports PCLK_in]
create_clock -period 33MHz -name pclk_2x_source [get_ports PCLK_in] -add
create_clock -period 33MHz -name pclk_3x_source [get_ports PCLK_in] -add
create_clock -period 54MHz -name pclk_2x_source [get_ports PCLK_in] -add
create_clock -period 54MHz -name pclk_3x_source [get_ports PCLK_in] -add
create_clock -period 33MHz -name pclk_4x_source [get_ports PCLK_in] -add
create_clock -period 33MHz -name pclk_5x_source [get_ports PCLK_in] -add
@@ -54,8 +54,8 @@ foreach_in_collection c [get_clocks "pclk_1x pclk_*_source"] {
}
# output delay constraints
set IT_Tsu 1.0
set IT_Th -0.5
set IT_Tsu 1.5
set IT_Th -0.3
set critoutputs_hdmi [get_ports {HDMI_TX_RD* HDMI_TX_GD* HDMI_TX_BD* HDMI_TX_DE HDMI_TX_HS HDMI_TX_VS}]
foreach_in_collection c [get_clocks pclk_*_out] {
set_output_delay -clock $c -min $IT_Th $critoutputs_hdmi -add