From 12cf1472f159b5aaf26d871d88f684f1f46cf856 Mon Sep 17 00:00:00 2001
From: cbdev <cb@cbcdn.com>
Date: Thu, 24 Aug 2023 20:13:51 +0200
Subject: Implement single-tag select

---
 twn3_test.c | 25 ++++++++++++++++++++-----
 1 file changed, 20 insertions(+), 5 deletions(-)

(limited to 'twn3_test.c')

diff --git a/twn3_test.c b/twn3_test.c
index ca10574..734201e 100644
--- a/twn3_test.c
+++ b/twn3_test.c
@@ -12,8 +12,8 @@ int main(int argc, char** argv){
 	char data[1024];
 	unsigned u;
 
-	int device = twn3_open("/dev/ttyACM0");
-	
+	int device = twn3_open("/dev/ttyACM3");
+
 	printf("Device is at fd %d\n", device);
 	if(device < 0){
 		printf("%s\n", strerror(errno));
@@ -33,7 +33,7 @@ int main(int argc, char** argv){
 	}
 
 	//write some userdata
-	twn3_sync_write_eeprom(device, 0, 19, 0xAA);
+	//twn3_sync_write_eeprom(device, 0, 19, 0xAA);
 
 	//set ExtendID bit
 	//twn3_sync_write_eeprom(device, 0, 5, 0x05);
@@ -42,8 +42,23 @@ int main(int argc, char** argv){
 	//twn3_sync_restart(device, 0);
 
 	//store a key
-	uint8_t key[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
-	twn3_sync_storekey(device, 0, 12, key);
+	//uint8_t key[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
+	//twn3_sync_storekey(device, 0, 12, key);
+	
+	//wait for a single tag
+	int status;
+	uint8_t type = tag_none;
+	uint8_t serial[20];
+	size_t serial_length = sizeof(serial);
+	for(status = twn3_sync_select_first(device, 0, &type, serial, &serial_length);
+			status == 0;
+			status = twn3_sync_select_first(device, 0, &type, serial, &serial_length)){
+		if(type != tag_none){
+			printf("Tag with UID length %lu found, type %02X\n", serial_length, type);
+			break;
+		}
+		serial_length = sizeof(serial);
+	}
 
 	close(device);
 	return EXIT_SUCCESS;
-- 
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