From 50aaefda801e97acd1d2bcc188b4fd8908eab1cc Mon Sep 17 00:00:00 2001 From: Christian Pointner Date: Thu, 23 Sep 2021 19:06:43 +0200 Subject: add instructions to restore the DFU bootloader vor atmega usb devices --- .gitignore | 2 ++ contrib/restore-dfu-bootloader.txt | 10 ++++++++++ 2 files changed, 12 insertions(+) create mode 100644 contrib/restore-dfu-bootloader.txt diff --git a/.gitignore b/.gitignore index 69a5435..c3d8286 100644 --- a/.gitignore +++ b/.gitignore @@ -19,4 +19,6 @@ contrib/.teensy-loader.prepared contrib/teensy_loader_cli contrib/.micronucleus.prepared contrib/micronucleus +contrib/megaUSB_DFU_Bootloaders.zip +contrib/megaUSB_DFU_Bootloaders tuer-rfid/update-keys diff --git a/contrib/restore-dfu-bootloader.txt b/contrib/restore-dfu-bootloader.txt new file mode 100644 index 0000000..690edec --- /dev/null +++ b/contrib/restore-dfu-bootloader.txt @@ -0,0 +1,10 @@ +Downlaod: + + $ wget http://www.atmel.com/Images/megaUSB_DFU_Bootloaders.zip + $ mkdir megaUSB_DFU_Bootloaders + $ cd megaUSB_DFU_Bootloaders + $ unp ../megaUSB_DFU_Bootloaders.zip + +Flash: + + # avrdude -p m32u4 -c arduino -U flash:w:ATMega32U4-usbdevice_dfu-1_0_0.hex -U lfuse:w:0x5e:m -U hfuse:w:0x99:m -U efuse:w:0xc3:m -P /dev/ttyACM0 -- cgit v1.2.3