application: minor, improve channel selection

2021-03-11 14:22:59 +01:00 · 2021-03-11 14:22:59 +01:00 · 89f8c80093
parent baaa435de8
commit 89f8c80093
1 changed files with 1 additions and 1 deletions
--- a/application.c
+++ b/application.c
@ -190,7 +190,7 @@ static void print_target(void)
 static void mux_select(int8_t channel)
 {
 	gpio_set(GPIO_PORT(MUX_EN_PIN), GPIO_PIN(MUX_EN_PIN)); // disable multiplexer while we are switching
-	if (channel < 0 || channel > 15) {
+	if (channel < 0 || channel > 15 || (channel > CHANNEL_NUMBERS - 1)) {
 		return; // no channel to select
 	}
 	// select channel using bit pattern