euro-yesman: update flasher configuration

hardware/euro-yesman/.cargo/config

@@ -1,6 +1,8 @@
+[target.thumbv7m-none-eabi]
+
+[target.'cfg(all(target_arch = "arm", target_os = "none"))']
+runner = "arm-none-eabi-gdb -tui -q -x openocd.gdb"
+rustflags = [ "-C", "link-arg=-Tlink.x" ]
+
 [build]
-# Always compile for the instruction set of the STM32F1
 target = "thumbv7m-none-eabi"
-
-# use the Tlink.x scrip from the cortex-m-rt crate
-rustflags = [ "-C", "link-arg=-Tlink.x"]

hardware/euro-yesman/default.nix

@@ -1,6 +0,0 @@
-with (import <nixpkgs> {});
-
-stdenv.mkDerivation {
-  name = "bad-rust-env";
-  buildInputs = with pkgs; [ rustup clangStdenv cargo-flash openocd ];
-}

hardware/euro-yesman/flash.sh

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+

hardware/euro-yesman/openocd.cfg

@@ -0,0 +1,6 @@
+# This is required to make it work with my fake stm32
+set CPUTAPID 0x2ba01477
+source [find interface/stlink.cfg]
+
+source [find target/stm32f1x.cfg]
+

hardware/euro-yesman/openocd.gdb

@@ -0,0 +1,19 @@
+target remote :3333
+
+# print demangled symbols
+set print asm-demangle on
+
+# detect unhandled exceptions, hard faults and panics
+break DefaultHandler
+break UserHardFault
+break rust_begin_unwind
+
+# *try* to stop at the user entry point (it might be gone due to inlining)
+break main
+
+monitor arm semihosting enable
+
+load
+
+# start the process but immediately halt the processor
+stepi

hardware/euro-yesman/shell.nix

@@ -0,0 +1,9 @@
+with (import <nixpkgs> {});
+
+stdenv.mkDerivation {
+  name = "bad-rust-env";
+  buildInputs = with pkgs; [
+    rustup clangStdenv gcc-arm-embedded
+    cargo-flash cargo-binutils openocd
+  ];
+}