improved DFP setup and support:

- `./make dfp` downloads and installs Atmel DFPs for each supported MCU
- build.sh detects and uses attiny or avrdd, and others are simple to add
- updated setup info in /README.md

... also some other small documentation updates.

1 files changed, 36 insertions, 0 deletions

diff --git a/bin/dfp-install.sh b/bin/dfp-install.sh
new file mode 100755
index 0000000..a73c4d5
--- /dev/null
+++ b/bin/dfp-install.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+# Atmel DFP download/install/setup script
+# Copyright (C) 2023 Selene ToyKeeper
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+set -e
+
+V_ATTINY='2.0.368'
+V_AVRDD='2.2.253'
+F_ATTINY="Atmel.ATtiny_DFP.${V_ATTINY}.atpack"
+F_AVRDD="Atmel.AVR-Dx_DFP.${V_AVRDD}.atpack"
+
+cd arch
+
+# make the base DFP dir
+mkdir -p dfp
+cd dfp
+
+# download the zipped pack files if they don't exist yet
+mkdir -p zip
+cd zip
+[ ! -f "${F_ATTINY}" ] && wget "http://packs.download.atmel.com/${F_ATTINY}"
+[ ! -f "${F_AVRDD}"  ] && wget "http://packs.download.atmel.com/${F_AVRDD}"
+
+# extract the packs
+# attiny
+cd ..
+mkdir -p attiny
+cd attiny
+unzip "../zip/${F_ATTINY}"
+# avrdd
+cd ..
+mkdir -p avrdd
+cd avrdd
+unzip "../zip/${F_AVRDD}"
+