From e4376ee6253ed1f3b90c1b098f49c7acce95763f Mon Sep 17 00:00:00 2001 From: "rick.chan" Date: Mon, 26 Oct 2020 19:22:09 +0800 Subject: [PATCH] =?UTF-8?q?=E8=A1=A5=E5=85=85=20sync=20start=20=E5=92=8C?= =?UTF-8?q?=20sync=20end=20=E7=9A=84=E8=AF=B4=E6=98=8E.?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: rick.chan --- Hardware/Peripherals/Display/Display_Parameters.md | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/Hardware/Peripherals/Display/Display_Parameters.md b/Hardware/Peripherals/Display/Display_Parameters.md index a16cf29..dcdfc75 100644 --- a/Hardware/Peripherals/Display/Display_Parameters.md +++ b/Hardware/Peripherals/Display/Display_Parameters.md @@ -44,7 +44,7 @@ pixclock = 1e12/dotclock * Left Margin:行切换,从同步到绘图之间的延迟,表示从水平同步信号开始到一行的有效数据开始之间的 VCLK 的个数,等同于 HBP(Horizontal Back Porch); * Right Margin:行切换,从绘图到同步之间的延迟,表示一行的有效数据结束到下一个水平同步信号开始之间的 VCLK 的个数,等同于 HFP(Horizontal Front Porch, Horizontal Sync Offset); * Upper Margin:帧切换,从同步到绘图之间的延迟,表示在一帧图像开始时,垂直同步信号以后的无效的行数,等同于 VBP(Vertical Back Porch); -* Lower Margin:帧切换,从绘图到同步之间的延迟,表示在一帧图像结束后,垂直同步信号以前的无效的行数,等同于 VFB(Vertical Front Porch, Vertical Sync Offset); +* Lower Margin:帧切换,从绘图到同步之间的延迟,表示在一帧图像结束后,垂直同步信号以前的无效的行数,等同于 VFP(Vertical Front Porch, Vertical Sync Offset); * HSYNC Len:水平同步的长度,表示水平同步信号的宽度,用 VCLK 计算,等同于 HSPW(Horizontal Sync Pulse Width, Horizontal Sync Pulse, XPULSE); * VSYNC Len:垂直同步的长度,表示垂直同步脉冲的宽度,用行数计算,等同于 VSPW(Vertical Sync Pulse Width, Vertical Sync Pulse, YPULSE); * HSYNC POL:水平脉冲极性; @@ -98,7 +98,11 @@ pixclock = 1e12/dotclock,其中 x1e12 是为了将时间单位统一为皮秒( * Horizontal Active:X Resolution * Horizontal Blanking Interval:HFP + HSPW + HBP; * Vertical Active:Y Resolution -* Vertical Blanking Interval:VFB + VSPW + VBP。 +* Vertical Blanking Interval:VFP + VSPW + VBP。 +* Horizontal Sync Start:Horizontal Active + HFP +* Horizontal Sync End:Horizontal Active + HFP + HSPW +* Vertical Sync Start:Vertical Active + VFP +* Vertical Sync End:Vertical Active + VFP + VSPW LCD提供的外部接口信号: