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P51D
Joined: 25 Jan 2010 Posts: 36
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dsPIC30 RAM-use Problems |
Posted: Mon Feb 08, 2010 4:53 am |
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Hello all
I've some interessting problems with the ram-pointer and usage.
if I execute only the main parts, it works. Then I try to add some big arrays:
Code: |
int8 delay[600]={...};
int16 dac1[600]={...};
int16 dac2[600]={...}:
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Now works only the half of the program. An LCD-output function shows nothing on the lcd and the dac have also not every value.
For example:
Code: |
DAC_output(dac1[p] | (1<<12) | (1<<13));
1_DAC_select;
deselect;
DAC_output(dac2[p] | (1<<12) | (1<<13));
2_DAC_select;
deselect;
if(p == 150) p = 0;
else p ++;
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The dac has array values from place 0 to ~350 and not 0,1,2,3,4....
it seems like 0,3,4,6,9,...
What is the problem?
The fuses are this way:
Code: |
#device DSPIC30F6012A *=16 //16Bit Ram Pointer
#device adc=8
#FUSES NOWDT //No Watch Dog Timer
#FUSES HS //High speed Osc (> 4mhz)
#FUSES PR //Promiary Oscillator
#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
#FUSES RESERVED //Used to set the reserved FUSE bits
#FUSES RESERVED //Used to set the reserved FUSE bits
#use delay(clock=20000000)
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Thanks for answering.
best regards
P51D |
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HYDERABADII
Joined: 26 Mar 2010 Posts: 1
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dispic30f6012a configuration settings problem |
Posted: Fri Mar 26, 2010 3:52 am |
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Hello sir,
I'm using dspic30f6012a with your CCS pcwhd v4.093. This one worked well for 16f877a but with dspic30f6012a it is not showing any output. Here is the code.
I want to run this code with fast RC oscillator.
Code: |
#include <30F6012a.h>
#FUSES NOWDT //No Watch Dog Timer
#FUSES FRC //Primary Oscillator with PLL
#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 PUT4 //Power On Reset Timer value 4ms
#FUSES NOBROWNOUT //No Brownout reset
#FUSES BORV20 //Brownout reset at 2.0V
#FUSES LPOL_HIGH //Low-Side Transistors Polarity is Active-High (PWM 0,2,4 and 6)
#FUSES HPOL_HIGH //High-Side Transistors Polarity is Active-High (PWM 1,3,5 and 7)
#FUSES NOPWMPIN //PWM outputs drive active state upon Reset
#FUSES NOMCLR //Master Clear pin used for I/O
#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
#FUSES RESERVED //Used to set the reserved FUSE bits
#use delay(clock=7.37MHZ)
void main(void)
{
OUTPUT_B(PIN_B0|PIN_B1);
OUTPUT_F(PIN_F4 | PIN_F5);
SET_TRIS_b(PIN_B0|PIN_B1);
SETUP_ADC_PORTS(NO_ANALOGS);
while (true)
{
OUTPUT_LOW(PIN_B1);
OUTPUT_LOW(PIN_B0);
OUTPUT_LOW(PIN_F4);
OUTPUT_LOW(PIN_F5);
delay_ms(100);
OUTPUT_HIGH(PIN_B1);
OUTPUT_HIGH(PIN_B0);
OUTPUT_HIGH(PIN_F4);
OUTPUT_HIGH(PIN_F5);
delay_ms(100);
}
}
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Plzz reply me as early as possible.
Thank you. |
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FvM
Joined: 27 Aug 2008 Posts: 2337 Location: Germany
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Posted: Fri Mar 26, 2010 6:09 am |
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I don't see a problem with V4.093 and your code. It's working with MPLAB, thus I expect a hardware problem. |
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