From d34a85dbd0adbc4b8e2a579c7fc4c2c6c8779f71 Mon Sep 17 00:00:00 2001
From: Jens Ahrensfeld <jens@jayfield.org>
Date: Mon, 29 Mar 2021 20:06:43 +0000
Subject: [PATCH] - added new VGA time specs - fixed ts_vga_800_600_60

git-svn-id: http://moon:8086/svn/vhdl/trunk@1591 cc03376c-175c-47c8-b038-4cd826a8556b
---
 lib/VGA_ctrl/src/vga_types.vhd         | 23 +++++++++++++++++++++--
 projects/vga_ctrl/src/vga_ctrl_sys.vhd |  2 +-
 2 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/lib/VGA_ctrl/src/vga_types.vhd b/lib/VGA_ctrl/src/vga_types.vhd
index e8fa93e..1d38e95 100644
--- a/lib/VGA_ctrl/src/vga_types.vhd
+++ b/lib/VGA_ctrl/src/vga_types.vhd
@@ -40,6 +40,7 @@ package vga_types is
 
 	-----------------------------------------------------------------------
 	-- Common timimg specifications
+	-- see https://projectf.io/posts/video-timings-vga-720p-1080p/#hd-1920x1080-60-hz
 	-----------------------------------------------------------------------
 	-- For test bench (not for H/W use)
 	constant ts_vga_testbench : vga_timespec_t :=
@@ -73,8 +74,8 @@ package vga_types is
 	(
 		f_pxl_clk              => 40000000,
 		nfps                   => 60,
-		ts_h                   => (800,40,128,88,'0'),
-		ts_v                   => (600,1,4,23,'0')
+		ts_h                   => (800,40,128,88,'1'),
+		ts_v                   => (600,1,4,23,'1')
 	);
 	
 	-- 800 x 600 @ 72 Hz (OK)
@@ -104,6 +105,15 @@ package vga_types is
 		ts_v                   => (768,3,6,29,'0')
 	);
 
+	-- 1280 x 720 @ 60 Hz (TBD)
+	constant ts_vga_1280_720_60 : vga_timespec_t :=
+	(
+		f_pxl_clk              => 74250000,
+		nfps                   => 60,
+		ts_h                   => (1280,110,40,220,'1'),
+		ts_v                   => (720,5,5,20,'1')
+	);
+
 	-- 1280 x 1024 @ 70 Hz (Noisy)
 	constant ts_vga_1280_1024_70 : vga_timespec_t :=
 	(
@@ -122,6 +132,15 @@ package vga_types is
 		ts_v                   => (1024,2,2,33,'0')
 	);
 
+	-- 1920 x 1080 @ 60 Hz (TBD)
+	constant ts_vga_1920_1080_60 : vga_timespec_t :=
+	(
+		f_pxl_clk              => 148500000,
+		nfps                   => 60,
+		ts_h                   => (1920,88,44,148,'1'),
+		ts_v                   => (1080,4,5,36,'1')
+	);
+
 	-- Functions
 	function to_color_t(x : unsigned) return color_t;
 	function to_unsigned(x : color_t) return unsigned;
diff --git a/projects/vga_ctrl/src/vga_ctrl_sys.vhd b/projects/vga_ctrl/src/vga_ctrl_sys.vhd
index 474be4a..8f97167 100644
--- a/projects/vga_ctrl/src/vga_ctrl_sys.vhd
+++ b/projects/vga_ctrl/src/vga_ctrl_sys.vhd
@@ -9,7 +9,7 @@ entity vga_ctrl_sys is
 	Generic
 	(
 		sys_freq_MHz	: real				:= 100.0;
-		tsvga			: vga_timespec_t := ts_vga_1280_1024_72
+		tsvga			: vga_timespec_t	:= ts_vga_800_600_60
 	);
 	Port
 	(