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Fuses for dsPIC30F6012A

 
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P51D



Joined: 25 Jan 2010
Posts: 36

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Fuses for dsPIC30F6012A
PostPosted: Mon Jan 25, 2010 1:47 am     Reply with quote
hello all

I have a question about general pic programming with the CCS IDE:
could there be any bugs?

Because I would set the fuses for a dsPIC30F6012A with external 40MHz oscillator.

In the project wizard I could set the following fuses:
Code:

Inserted into .h file:

#device *=16
#device adc=8

#FUSES NOWDT                    //No Watch Dog Timer
#FUSES HS                       //High speed Osc (> 4mhz)
#FUSES LP                       //Low power osc < 200 khz
#FUSES NOCKSFSM                 //Clock Switching is disabled, fail Safe clock monitor is disabled
#FUSES WPSB1                    //Watch Dog Timer PreScalar B 1:1
#FUSES WPSA1                    //Watch Dog Timer PreScalar A 1:1
#FUSES PUT64                    //Power On Reset Timer value 64ms
#FUSES BROWNOUT                 //Reset when brownout detected
#FUSES BORV20                   //Brownout reset at 2.0V
#FUSES LPOL_HIGH                //Low-Side Transistors Polarity is Active-High (PWM 0,2,4 and 6)
   //PWM module low side output pins have active high output polar
#FUSES HPOL_HIGH                //High-Side Transistors Polarity is Active-High (PWM 1,3,5 and 7)
   //PWM module high side output pins have active high output polarity
#FUSES NOPWMPIN                 //PWM outputs drive active state upon Reset
#FUSES MCLR                     //Master Clear pin enabled
#FUSES NOPROTECT                //Code not protected from reading
#FUSES NOWRT                    //Program memory not write protected
#FUSES NODEBUG                  //No Debug mode for ICD
#FUSES NOCOE                    //Device will reset into operational mode
#FUSES ICS0                     //ICD communication channel 0

#use delay(clock=40000000)

What is this:
Code:

#FUSES HS                       //High speed Osc (> 4mhz)
#FUSES LP                       //Low power osc < 200 khz

I think that this could not be ok.

The PIC should work at the maximum frequency (16xPLL ?).

Sorry for these questions but I changed from AVR to PIC and there are many differnces...

Thank you for helping.
Best regards
P51D
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Mon Jan 25, 2010 1:45 pm     Reply with quote
Quote:

#FUSES HS //High speed Osc (> 4mhz)
#FUSES LP //Low power osc < 200 khz
I think that this could not be ok.

I would set the fuses for a dsPIC30F6012A with external 40MHz oscillator.

Download the PIC data sheet:
http://ww1.microchip.com/downloads/en/DeviceDoc/70143D.pdf
Look in this section:
Quote:
TABLE 20-1: OSCILLATOR OPERATING MODES

ECIO -- External clock input (0-40 MHz), OSC2 pin is I/O

It lists ECIO as the correct oscillator fuse setting. Delete the HS and LP
fuses. Use this:
Code:
#fuses ECIO
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