diff --git a/platforms/avr/flash.mk b/platforms/avr/flash.mk index 9c2ab724105e..51731f0aa880 100644 --- a/platforms/avr/flash.mk +++ b/platforms/avr/flash.mk @@ -130,10 +130,10 @@ avrdude-split-right: $(BUILD_DIR)/$(TARGET).hex check-size cpfirmware $(call EXEC_AVRDUDE,eeprom-righthand.eep) define EXEC_USBASP - if $(AVRDUDE_PROGRAMMER) -p $(AVRDUDE_MCU) -c usbasp 2>&1 | grep -q "could not find USB device with"; then \ + if $(AVRDUDE_PROGRAMMER) -p $(AVRDUDE_MCU) -c usbasp 2>&1 | grep -q "\(could not\|cannot\) find USB device with"; then \ printf "$(MSG_BOOTLOADER_NOT_FOUND_QUICK_RETRY)" ;\ sleep $(BOOTLOADER_RETRY_TIME) ;\ - until $(AVRDUDE_PROGRAMMER) -p $(AVRDUDE_MCU) -c usbasp 2>&1 | (! grep -q "could not find USB device with"); do\ + until $(AVRDUDE_PROGRAMMER) -p $(AVRDUDE_MCU) -c usbasp 2>&1 | (! grep -q "\(could not\|cannot\) find USB device with"); do\ printf "." ;\ sleep $(BOOTLOADER_RETRY_TIME) ;\ done ;\