From c363460ab23c83b9a2c340f06046abb2db5d1499 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?King=20K=C3=A9vin?= <kingkevin@cuvoodoo.info>
Date: Mon, 15 Mar 2021 13:59:51 +0100
Subject: [PATCH] application: check target voltage before determining type

---
 application.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/application.c b/application.c
index 9fe5ae4..8e5d693 100644
--- a/application.c
+++ b/application.c
@@ -271,8 +271,13 @@ static void command_voltages(void* argument)
 static void command_types(void* argument)
 {
 	(void)argument; // we won't use the argument
-	float* voltages;
 	print_target(); // print target voltage (also sets measurement conditions)
+	float* voltages = measure_voltages(); // measure voltages
+	if (voltages[1] < 0.5) { // check target voltage connection
+		puts("connect target voltage to test channel type\n");
+		return;
+	}
+
 	puts("signal voltage  pulled  pull-up pulled pull-down signal\n");
 	puts(" name  raw (V) down (V) (kOhm)  up (V)  (kOhm)    type \n");