From 2942ea4465feab44ff89d57680614f47eb3c314b Mon Sep 17 00:00:00 2001
From: Vegard Storheil Eriksen <zyp@jvnv.net>
Date: Mon, 26 Aug 2013 20:04:02 +0200
Subject: Use button state for LED control if more than a second passed since
 last update.

---
 main.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/main.cpp b/main.cpp
index 0e5298d..8a093b0 100644
--- a/main.cpp
+++ b/main.cpp
@@ -159,6 +159,8 @@ Pin& usb_pu = PA15;
 
 USB_f1 usb(USB, dev_desc_p, conf_desc_p);
 
+uint32_t last_led_time;
+
 class USB_HID : public USB_class_driver {
 	private:
 		USB_generic& usb;
@@ -216,6 +218,7 @@ class USB_HID : public USB_class_driver {
 			if(len == 2) {
 				uint32_t buf;
 				usb.read(ep, &buf, len);
+				last_led_time = Time::time();
 				GPIOC.reg.ODR = buf & 0x7ff;
 			}
 		}
@@ -304,7 +307,10 @@ int main() {
 		usb.process();
 		
 		uint16_t buttons = (~GPIOB.reg.IDR & 0x7ff);
-		//GPIOC.reg.ODR = buttons;
+		
+		if(Time::time() - last_led_time > 1000) {
+			GPIOC.reg.ODR = buttons;
+		}
 		
 		if(usb.ep_ready(1)) {
 			report_t report = {buttons, uint8_t(TIM2.CNT), uint8_t(TIM3.CNT)};
-- 
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