From ed29e27f807460f2c236cfaaa955237f3342ecfb Mon Sep 17 00:00:00 2001 From: giomba Date: Wed, 12 Oct 2022 20:31:46 +0200 Subject: [PATCH] Add "documentation". --- src/main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/main.c b/src/main.c index a902480..49dc1a2 100644 --- a/src/main.c +++ b/src/main.c @@ -104,6 +104,7 @@ int main() printf("Starting VGA sync machine on %u...\n", sm1); vga_hsync_program_init(pio, sm1, offset1); printf("Feeding horizontal sync...\n"); + // low pulse is X pixels long, and SM runs at 4x of pixel clock pio_sm_put_blocking(pio, sm1, 63 * 4); pio_sm_put_blocking(pio, sm1, 775 * 4);