attiny10 test

C/attiny10-test/.envrc

@@ -0,0 +1 @@
+use flake ../..#avr

C/attiny10-test/.gitignore

@@ -0,0 +1,2 @@
+*.o
+*.elf

C/attiny10-test/Makefile

@@ -0,0 +1,12 @@
+AVRDUDE ?= avrdude -p t10 -c atmelice_tpi
+CC = avr-gcc
+CFLAGS = -mmcu=attiny10 -Wall -std=c11 -Os -DF_CPU=1000000 -L$(LIBC)/avr/lib/avrtiny -B$(LIBC)/avr/lib/avrtiny
+
+%.o: %.c
+	$(CC) -c $(CFLAGS) $< -o $@
+
+main.elf: main.o
+	$(CC) $(CFLAGS) main.o -o main.elf
+
+flash: main.elf
+	$(AVRDUDE) -U flash:w:main.elf:e

C/attiny10-test/main.c

@@ -0,0 +1,10 @@
+#include <avr/io.h>
+#include <util/delay.h>
+
+int main(void) {
+	DDRB = 1 << 2;
+	while(1) {
+		PORTB ^= 1 << 2;
+		_delay_ms(500);
+	}
+}

flake.nix

@@ -82,7 +82,14 @@
           ];
           RUST_SRC_PATH = "${rust}/lib/rustlib/src/rust/library";
         };
+        devShells.avr = with pkgs; pkgsCross.avr.mkShell {
+          packages = [
+            avrdude
+            gnumake
+          ];
 
+          LIBC = pkgsCross.avr.avrlibc;
+        };
         devShells.typst = with pkgs; mkShell { packages = [ typst ]; };
         formatter = pkgs.nixfmt;
       });