From cdb1a86b3665cc49b66213264b3845f0cf34842e Mon Sep 17 00:00:00 2001 From: emard Date: Thu, 21 Feb 2019 14:00:34 +0100 Subject: [PATCH] ESP32 programming note in manual --- doc/MANUAL.md | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/doc/MANUAL.md b/doc/MANUAL.md index c44c9bd..d378b36 100644 --- a/doc/MANUAL.md +++ b/doc/MANUAL.md @@ -473,6 +473,18 @@ ULX3S board may become "Bricked". There is jumper J3 to disable ESP-32, its left of SD card slot. Note boards PCB v1.7 need upgrade for this jumper to work correctly. +# Programming ESP32 + +Load "passthru" bitstream to FPGA config flash, install +Arduino ESP32 support. In "tools" pull down menu, sleect ESP32 +board "WEMOS LOLIN32" and normally program ULX3S onboard ESP32 +from Arduino by uploading sketch. "passthru" bitstream will +redirect USB-serial traffic from PC thru FPGA to ESP32. + +There may be issues on getting this to work on windows. +On linux, there are no serious issues, usually only USB-serial +port access permissions. + # Board Versions This project is open source, freely downloadable so there can be