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programming XL5 Speed controller for TRAAX car

 
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geeth9



Joined: 17 Mar 2010
Posts: 2

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programming XL5 Speed controller for TRAAX car
PostPosted: Wed Mar 17, 2010 2:22 pm     Reply with quote
Hi guys

I am new to programming the PIC, I am using a 18F4520 PIC microcontroller to program a XL5 ESC for regulating a TRAAX r.c car.
I observed that the frequency coming out of the R.C receiver was 46Hz (pulse width of 21.7msec).

My clock is 20Mhz and by using the PWM the least frequency I am able to get is 1.22Khz.

Can anybody help to achieve 46 - 50 Hz range frequency.

Thanx
Geeth
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Wed Mar 17, 2010 2:29 pm     Reply with quote
Quote:
Can anybody help to achieve 46 - 50 Hz range frequency.

See the sample code for software PWM using Timer0 (also called RTCC)
in this thread. It will do PWM at lower frequencies:
http://www.ccsinfo.com/forum/viewtopic.php?t=37807
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