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Revision 649f2bd1dbc5702edbc4cbacf44d25ba3ccd8cc9 authored by Felix Ruess on 09 July 2013, 09:34:43 UTC, committed by Felix Ruess on 09 July 2013, 19:17:16 UTC 
[stm32] F4: fix ppm input timer frequency for TIM2
 
- krooz: don't use TIM2 for PWM
- change to 6 ticks per usec to fit all frequencies
- on the F1 we assume to run at 72MHz for HCLK and both timer clocks
  TIM1 -> APB2 = HCLK = 72MHz
  TIM2 -> 2 * APB1 = 2 * 36MHz = 72MHz
- on the F4 we assume 2 * AHB clock:
  TIM1 -> 2 * APB2 = 168MHz
  TIM2 -> 2 * APB1 = 84MHz
1 parent 60a6d89
Raw File
mtk.xml 
<!-- $Id$ -->
<!-- Mediatek, DIYDrones 1.4/1.6 Binary Protocol description -->

<!DOCTYPE mtk SYSTEM "mtk.dtd">

<mtk>
 <class name="DIY14" ID="0x01">
    <message name="NAV" ID="0x05" length="26">
      <field name="LAT" format="I4BE" scaling="1e-8" unit="deg"/>
      <field name="LON" format="I4BE" scaling="1e-8" unit="deg"/>
      <field name="HEIGHT" format="I4BE" unit="cm"/>
      <field name="GSpeed" format="I4BE" unit="cm/s"/>
      <field name="Heading" format="I4BE" scaling="1e-6" unit="deg"/>
      <field name="numSV" format="U1"/>
      <field name="GPSfix" format="U1"/>
      <field name="ITOW" format="U4BE" unit="ms"/>
    </message>
 </class>

 <class name="DIY16" ID="0xD0">
    <message name="NAV" ID="0xDD" length="32">
      <field name="LAT" format="I4" scaling="1e-8" unit="deg"/>
      <field name="LON" format="I4" scaling="1e-8" unit="deg"/>
      <field name="HEIGHT" format="I4" unit="cm"/>
      <field name="GSpeed" format="I4" unit="cm/s"/>
      <field name="Heading" format="I4" scaling="1e-2" unit="deg"/>
      <field name="numSV" format="U1"/>
      <field name="GPSfix" format="U1"/>
      <field name="UTC_DATE" format="U4" scaling="ms" unit="HHMMSSMMM"/>
      <field name="UTC_TIME" format="U4" scaling="d" unit="DDMMYY"/>
      <field name="HDOP" format="U2"/>
    </message>
 </class>
</mtk>
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