From 54420387ab46e7164f607875f6af38edc57fb89a Mon Sep 17 00:00:00 2001 From: philippe44 Date: Sun, 24 Jan 2021 00:28:56 -0800 Subject: [PATCH] Update README.md --- README.md | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/README.md b/README.md index 1acf7664..0e355884 100644 --- a/README.md +++ b/README.md @@ -51,11 +51,12 @@ The board showed above has the following IO set - key1: not sure, using GPIO36 in a matrix - jack insertion: GPIO39 (inserted low) - D4 -> GPIO22 used for green LED (active low) -- D5 -> GPIO19 as well -- The IO connector also brings GPIO5, GPIO18, GPIO19, GPIO21, GPIO22 and GPIO23 -- JTAG and SD-card use GPIO13 and GPIO15 (see dip switches) -- JTAG also brings GPIO12 and GPIO14 -(note that GPIOs need pullups) +- D5 -> GPIO19 as well (muxed with key3) +- The IO connector also brings GPIO5, GPIO18, GPIO19, GPIO21, GPIO22 and GPIO23 (don't forget it's muxed with keys!) +- The JTAG connector uses GPIO 12, 13, 14 and 15 (see dip switched) but these are also used for SD-card (and 13 is key2) +- It's alwats possible to re-use GPIOO (download at boot) and GPIO1/GPIO3 which are RX/TX of UART0 but you'll lose trace + +(note that some GPIO need pullups) So a possible config would be - set_GPIO: 21=amp,22=green:0,39=jack:0