From: Travis La Marr <exiva@exiva.net>
Date: Fri, 15 Jul 2016 14:28:23 +0000 (-0400)
Subject: Make DFU wait for bootloader
X-Git-Url: https://git.donarmstrong.com/?a=commitdiff_plain;h=0b8c448b300da233de8b8d4fcdb359ec0679a513;p=qmk_firmware.git

Make DFU wait for bootloader

Added a loop for waiting for the keyboard to be put in bootloader mode,
rather than failing out. Makes building keymaps easier.
---

diff --git a/tmk_core/avr.mk b/tmk_core/avr.mk
index 3bf2b34f8..6c03e1650 100644
--- a/tmk_core/avr.mk
+++ b/tmk_core/avr.mk
@@ -107,6 +107,10 @@ flip: $(BUILD_DIR)/$(TARGET).hex
 	batchisp -hardware usb -device $(MCU) -operation start reset 0
 
 dfu: $(BUILD_DIR)/$(TARGET).hex sizeafter
+	until dfu-programmer $(MCU) get bootloader-version; do\
+		echo "Error: Bootloader not found. Trying again in 5s." ;\
+		sleep 5 ;\
+	done
 ifneq (, $(findstring 0.7, $(shell dfu-programmer --version 2>&1)))
 	dfu-programmer $(MCU) erase --force
 else