From 4e08e59c52769e37ebf342f509df6b35b5888a14 Mon Sep 17 00:00:00 2001
From: Matthew Kennedy <matthewkennedy@outlook.com>
Date: Tue, 24 Sep 2024 18:36:28 -0700
Subject: [PATCH] support 4 channels

---
 firmware/pump_dac.cpp | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/firmware/pump_dac.cpp b/firmware/pump_dac.cpp
index 9d6576f..4e2fa1f 100644
--- a/firmware/pump_dac.cpp
+++ b/firmware/pump_dac.cpp
@@ -30,9 +30,18 @@ static const PWMConfig pumpDacConfig = {
 
 static const uint8_t pumpDacPwmCh[] = {
     PUMP_DAC_PWM_CHANNEL_0,
-#if (AFR_CHANNELS > 1)
+
+#if (AFR_CHANNELS >= 2)
     PUMP_DAC_PWM_CHANNEL_1,
 #endif
+
+#if (AFR_CHANNELS >= 3)
+    PUMP_DAC_PWM_CHANNEL_2,
+#endif
+
+#if (AFR_CHANNELS >= 4)
+    PUMP_DAC_PWM_CHANNEL_3,
+#endif
 };
 
 static Pwm pumpDac(PUMP_DAC_PWM_DEVICE);