From 2d8a534f1420f234bc37baa75e3e1e2a7b21ceb2 Mon Sep 17 00:00:00 2001 From: R Date: Sun, 18 Aug 2024 22:07:25 +0100 Subject: [PATCH] Correct the README wrt supported chips Closes #1 --- README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/README.md b/README.md index 69efaf0..5a49429 100644 --- a/README.md +++ b/README.md @@ -17,7 +17,7 @@ This code implements a [uf2](https://github.com/microsoft/uf2) bootloader for RI - Runs off of internal 8 MHz oscillator (despite stability concerns) - The HSI oscillator's tolerance (-1.0% to +1.6%) is well outside of the range specified for USB full speed ($\pm$ 0.25%), but it seems to work in practice n=1 ¯\\\_(ツ)\_/¯ - The vendor's ISP ROM bootloader also does this -- Should work across most of the CH32V2xx and CH32V3xx family with appropriate changes to hardcoded constants. +- Should work across CH32V2xx family with appropriate changes to hardcoded constants. Does *not* support CH32V3xx (which doesn't have USBD). - Allows both download to flash and to SRAM with the "not main flash" flag (this is how the RP2040 bootrom works) - Flash download address must be 08xxxxxx (i.e. not starting at 0) - SRAM download address must be 20xxxxxx