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authorrodri <rgl@antares-labs.eu>2021-06-05 11:10:23 +0000
committerrodri <rgl@antares-labs.eu>2021-06-05 11:10:23 +0000
commitedf5f145013aa28ffbc7f19f874cd489a92f8449 (patch)
tree05a7dfdae1b63a79bdfbb1fab84af35a51b5b99c /asm/blink
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public release.HEADmaster
Diffstat (limited to 'asm/blink')
-rwxr-xr-xasm/blink/avrdasm2
-rw-r--r--asm/blink/blink.s12
-rw-r--r--asm/blink/dat.h20
-rw-r--r--asm/blink/makefile17
4 files changed, 51 insertions, 0 deletions
diff --git a/asm/blink/avrdasm b/asm/blink/avrdasm
new file mode 100755
index 0000000..ea0707b
--- /dev/null
+++ b/asm/blink/avrdasm
@@ -0,0 +1,2 @@
+#!/bin/sh
+avr-objdump -D *.elf
diff --git a/asm/blink/blink.s b/asm/blink/blink.s
new file mode 100644
index 0000000..8577db3
--- /dev/null
+++ b/asm/blink/blink.s
@@ -0,0 +1,12 @@
+.include "dat.h"
+
+.globl main
+main:
+ ldi r16, 1<<DDRB5
+ ori r16, 1<<DDRB4
+ ldi r17, 0<<PORTB5
+ ldi r17, 1<<PORTB4
+ out DDRB, r16
+ out PORTB, r17
+halt:
+ rjmp halt
diff --git a/asm/blink/dat.h b/asm/blink/dat.h
new file mode 100644
index 0000000..d3783b6
--- /dev/null
+++ b/asm/blink/dat.h
@@ -0,0 +1,20 @@
+/* Data Registers */
+.equ PORTB, 0x05
+.equ PORTB0, 0
+.equ PORTB1, 1
+.equ PORTB2, 2
+.equ PORTB3, 3
+.equ PORTB4, 4
+.equ PORTB5, 5
+.equ PORTB6, 6
+.equ PORTB7, 7
+/* Data Direction Registers */
+.equ DDRB, 0x04
+.equ DDRB0, 0
+.equ DDRB1, 1
+.equ DDRB2, 2
+.equ DDRB3, 3
+.equ DDRB4, 4
+.equ DDRB5, 5
+.equ DDRB6, 6
+.equ DDRB7, 7
diff --git a/asm/blink/makefile b/asm/blink/makefile
new file mode 100644
index 0000000..4790211
--- /dev/null
+++ b/asm/blink/makefile
@@ -0,0 +1,17 @@
+CC=avr-gcc
+AS=avr-as
+
+PORT=/dev/ttyACM0
+TARG=blink
+
+all: build
+
+build:
+ $(AS) -mmcu=atmega328p -o $(TARG).elf $(TARG).s
+ avr-objcopy -j .text -j .data -O ihex $(TARG).elf $(TARG).hex
+
+burn:
+ avrdude -v -p atmega328p -c arduino -P $(PORT) -b 115200 -D -U flash:w:$(TARG).hex
+
+clean:
+ rm -f $(TARG).elf $(TARG).hex