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  • Committer: Selene Scriven
  • Date: 2014-11-10 21:44:25 UTC
  • mto: This revision was merged to the branch mainline in revision 71.
  • Revision ID: ubuntu@toykeeper.net-20141110214425-h071pac1ulayazsf
JCapSolutions   2014-10-07 [merge]
git commit: fed8251a4b977f18c55acfbb1ed40c702008dde8
Merge branch 'dual_pwm'

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JonnyC/STAR/STAR_dual_switch/STAR_dual_switch.c
 
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/* STAR_dual_switch version 1.0
 
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 *
 
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 * Changelog
 
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 *
 
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 * 1.0 Initial version
 
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 *
 
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 */
 
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/*
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 * NANJG 105C Diagram
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 *           ---
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 *  Star 3 -|   |- PWM
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 *     GND -|   |- Star 2
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 *           ---
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 * CPU speed is 4.8Mhz without the 8x divider when low fuse is 0x75
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 *
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 * define F_CPU 4800000  CPU: 4.8MHz  PWM: 9.4kHz       ####### use low fuse: 0x75  #######
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 *                             /8     PWM: 1.176kHz     ####### use low fuse: 0x65  #######
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 * define F_CPU 9600000  CPU: 9.6MHz  PWM: 19kHz        ####### use low fuse: 0x7a  #######
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 *                             /8     PWM: 2.4kHz       ####### use low fuse: 0x6a  #######
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 * 
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 * Above PWM speeds are for phase-correct PWM.  This program uses Fast-PWM, which when the CPU is 4.8MHz will be 18.75 kHz
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 *
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 * FUSES
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 *              I use these fuse settings
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 *              Low:  0x75
 
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 *              Low:  0x75      (4.8MHz CPU without 8x divider, 9.4kHz phase-correct PWM or 18.75kHz fast-PWM)
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 *              High: 0xff
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 *
 
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 *      For more details on these settings, visit http://github.com/JCapSolutions/blf-firmware/wiki/PWM-Frequency
 
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 *
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 * STARS
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 *              Star 2 = H-L if connected, L-H if not
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 *              Star 3 = Memory if not connected
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 *
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 *              To find out what value to use, plug in the target voltage (V) to this equation
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 *                      value = (V * 4700 * 255) / (23800 * 1.1)
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 *
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 *
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 *  v1.0 - Initial try, there's bound to be bugs     
 
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 *      
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 */
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#define F_CPU 4800000UL
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