From 16d35bfd99261c3b223d9fb61d8bb1d4e8342303 Mon Sep 17 00:00:00 2001
From: bsongis <bsongis@8db61ce9-5e8f-94c8-fa6b-1d1c8bcca7d0>
Date: Thu, 23 Feb 2012 22:09:45 +0000
Subject: [PATCH] V4 BandGap should be initialized for alow the voltage to
 settle quickly

---
 src/open9x.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/open9x.cpp b/src/open9x.cpp
index 58ccb79fd..9718e3ccc 100644
--- a/src/open9x.cpp
+++ b/src/open9x.cpp
@@ -790,7 +790,11 @@ uint16_t BandGap = 225;
 // G: Note that the above would have set the ADC prescaler to 128, equating to
 // 125KHz sample rate. We now sample at 500KHz, with oversampling and other
 // filtering options to produce 11-bit results.
+#ifdef PCBV4
+uint16_t BandGap = 2040 ;
+#else
 uint16_t BandGap ;
+#endif
 static uint16_t s_anaFilt[8];
 uint16_t anaIn(uint8_t chan)
 {
@@ -1743,7 +1747,7 @@ void perMain()
       {
         int32_t instant_vbat = anaIn(7);
 #if defined(PCBV4)
-        instant_vbat = (1112*(uint32_t)instant_vbat + (int32_t)instant_vbat*g_eeGeneral.vBatCalib + (BandGap<<2)) / (BandGap<<3);
+        instant_vbat = ((uint32_t)instant_vbat*1112 + (int32_t)instant_vbat*g_eeGeneral.vBatCalib + (BandGap<<2)) / (BandGap<<3);
 #else
         instant_vbat = (instant_vbat*16 + instant_vbat*g_eeGeneral.vBatCalib/8) / BandGap;
 #endif