From d03d3fd350b89caa31e505d2cb7b7bdf674b3d30 Mon Sep 17 00:00:00 2001
From: Vegard Storheil Eriksen <zyp@jvnv.net>
Date: Fri, 19 Aug 2016 00:02:24 +0200
Subject: Turn on LED when card is detected.

---
 main.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/main.cpp b/main.cpp
index 95626f2..3a00d0d 100644
--- a/main.cpp
+++ b/main.cpp
@@ -22,7 +22,6 @@ desc_t conf_desc_p = {sizeof(conf_desc), (void*)&conf_desc};
 
 USB_l0 usb(USB, dev_desc_p, conf_desc_p);
 
-
 Pin nfc_sck     = GPIOB[3];
 Pin nfc_miso    = GPIOB[4];
 Pin nfc_mosi    = GPIOB[5];
@@ -30,6 +29,9 @@ Pin nfc_ss      = GPIOB[6];
 Pin nfc_irq_out = GPIOB[7];
 Pin nfc_irq_in  = GPIOC[13];
 
+Pin button      = GPIOA[3];
+Pin led         = GPIOA[4];
+
 class CR95HF {
 	private:
 		SPI_t& spi;
@@ -474,6 +476,8 @@ int main() {
 	RCC.enable(RCC.GPIOB);
 	RCC.enable(RCC.GPIOC);
 	
+	led.set_mode(Pin::Output);
+	
 	RCC.enable(RCC.USB);
 	
 	usb.init();
@@ -516,6 +520,8 @@ int main() {
 		if(Time::time() < nfc_delay_until) {
 			// Just do nothing.
 		} else if(!cmd_sent) {
+			led.off();
+			
 			cr95hf.send_cmd(0x04, 3, (uint8_t*)"\x26\x01\x00"); // INVENTORY
 			cmd_sent = true;
 		} else if(!nfc_irq_out.get()) {
@@ -523,6 +529,8 @@ int main() {
 			cmd_sent = false;
 			
 			if(buf[0] == 128 && buf[14] == 0) {
+				led.on();
+				
 				USB.reg.BCDR &= ~(1 << 15);
 				uint8_t* id_raw = &buf[11];
 				uint8_t* id_ascii = sectors[4];
-- 
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