fw/Makefile: explicitly set the usbasp speed

diff --git a/firmware/Makefile b/firmware/Makefile
index 726558bdcdc170f26d2156397aacfe613359c0d5..e9e754e52e36d79b1c731b006fa39296cebf4e03 100644 (file)
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -12,7 +12,7 @@ AVRDUDE_PROGRAMMER=usbasp
 
 CFLAGS=-Wall -Os -mmcu=$(MCU) -DUSE_LOGGING=1 -DF_CPU=1000000UL -std=gnu99
 LDFLAGS=
-AVRDUDE_FLAGS= -p$(AVRDUDE_MCU) -c $(AVRDUDE_PROGRAMMER)
+AVRDUDE_FLAGS= -p$(AVRDUDE_MCU) -B 3 -c $(AVRDUDE_PROGRAMMER)
 
 FORMAT=ihex