Change setting of RTC to use ticks.

src/SCRIPTS/BF/background.lua

@@ -40,18 +40,35 @@ local function run_bg()
  -- assuming when sensor value higher than 0 there is an telemetry connection
  -- only send datetime one time after telemetry connection became available
  -- or when connection is restored after e.g. lipo refresh
- local now = getDateTime()
- local year = now.year;
 
- values = {}
- values[1] = bit32.band(year, 0xFF)
- year = bit32.rshift(year, 8)
- values[2] = bit32.band(year, 0xFF)
- values[3] = now.mon
- values[4] = now.day
- values[5] = now.hour
- values[6] = now.min
- values[7] = now.sec
+ if API_VERSION < 1.041 then
+ -- format: year (16) / month (8) / day (8) / hour (8) / min (8) / sec (8)
+ local now = getDateTime()
+ local year = now.year;
+
+ values = {}
+ values[1] = bit32.band(year, 0xFF)
+ year = bit32.rshift(year, 8)
+ values[2] = bit32.band(year, 0xFF)
+ values[3] = now.mon
+ values[4] = now.day
+ values[5] = now.hour
+ values[6] = now.min
+ values[7] = now.sec
+ else
+ -- format: seconds after the epoch (32) / milliseconds (16)
+ local now = getRtcTime()
+
+ values = {}
+
+ for i = 1, 4 do
+ values[i] = bit32.band(now, 0xFF)
+ now = bit32.rshift(now, 8)
+ end
+
+ values[5] = 0 -- we don't have milliseconds
+ values[6] = 0
+ end
 
  -- send msp message
  protocol.mspWrite(MSP_SET_RTC, values)

src/SCRIPTS/TELEMETRY/bf.lua

@@ -1,5 +1,14 @@
 SCRIPT_HOME = "/SCRIPTS/BF"
 
+-- Change this to match the API version of the firmware you are using
+-- (you can have multiple copies of this script with different values
+-- for API_VERSION, and select different versions for different models
+-- on your TX)
+-- Version mapping:
+-- 1.041: Betaflight 4.0 and newer
+-- <1.041: Betaflight 3.5 and older
+API_VERSION = 1.040
+
 protocol = assert(loadScript(SCRIPT_HOME.."/protocols.lua"))()
 radio = assert(loadScript(SCRIPT_HOME.."/radios.lua"))()