From ba47b0e8ae4e5a8b2e21d96b9d8e12ea69c528bf Mon Sep 17 00:00:00 2001 From: Josh Rahm Date: Wed, 18 Jan 2023 23:38:54 -0700 Subject: Initial commit for the ch-flash program. This program is a fork from https://github.com/frank-zago/isp55e0.git, except that it wait for a device to be connected if one is not present. This makes the flashing process more streamlined. --- README.md | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 README.md (limited to 'README.md') diff --git a/README.md b/README.md new file mode 100644 index 0000000..640f961 --- /dev/null +++ b/README.md @@ -0,0 +1,30 @@ +# ch-flash + +A program for flashing the CH573 devices. + +this is a fork of [](https://github.com/frank-zago/isp55e0.git) with the notable +difference that it will wait for the CH573 device to be connected if one is not +connected already. + +This has the benefit of not needing to "race the clock" when flashing the device +because the CH537 (or at least the ones I have) have an unstable usb interface +and will disconnect and reset after several seconds of being connected to the +machine. + +With this new utility one can run the flash program and then connect the device +when it will be flashed. + +## udev + +To flash the device requires some permissions to set up. One can run this flash +program as root to flash the device, but for those who wish to keep the flashing +under-privliged, one can add the following udev rules in +`/etc/udev/rules.d/50-ch573.rules`: + +``` +SUBSYSTEM=="usb", ATTR{idVendor}=="4348", ATTR{idProduct}=="55e0", MODE:="0666" +``` + +Then run the command: + +`udevadm control --reload-rules` -- cgit