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Fabrici
Joined: 11 Feb 2013
Posts: 19
Location: Toulouse - France
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| #BYTE register declaration |
 Posted: Wed Dec 18, 2013 12:30 pm |
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Hello all,
CCS Version : CCS PCD C Compiler, Version 5.006, 7054
Chip used : DSPIC33FJ09GS302
In my program, I declare two registers :
#BYTE CMPCON1 = 0x0540
#BYTE CMPCON2 = 0x0544
and, a little further, I affect values to them :
CMPCON1 = 0x8585;
CMPCON2 = 0x0485;
but, here is what the compiler has traducted (in .lst file) :
.................... CMPCON1 = 0x8585;
03D0: MOV.B #85,W0L
03D2: MOV.B W0L,540
.................... CMPCON2 = 0x0485;
03D4: MOV.B #85,W0L
03D6: MOV.B W0L,544
It writes 8 bit value, and I've asked for a 16 bit value. I imagine that I wrote something wrong.
Can you help me dealing this problem ?
Here is the whole code (it is in debugging state) :
| Code: | #include <33FJ09GS302.h>
//// Historique des version
////
//// 1.00 : Initial version
////
//
//// Definition FUSES
#FUSES ICSP1 // ICD uses PGC1/PGD1 pins
#FUSES NOJTAG // JTAG disabled
#FUSES DEBUG // Debug mode for use with ICD
//#FUSES WPOSTS1 // Watch Dog Timer PostScalar 1:1
#FUSES PLLWAIT //Clock switch will wait for the PLL lock signal
#FUSES NOWDT // No Watch Dog Timer
#FUSES FRC_PLL //Internal Fast RC oscillator with PLL
#FUSES OSCIO //OSC2 is general purpose output
#FUSES NOIOL1WAY //Allows multiple reconfigurations of peripheral pins
#FUSES NOWRT //Program memory not write protected
#FUSES NOPROTECT //Code not protected from reading
#USE DELAY (clock=7370000)
#USE RS232(BAUD=9600, XMIT=PIN_B1, RCV=PIN_B0, STREAM=COM_A)
#BYTE CMPCON1 = 0x0540
#BYTE CMPDAC1 = 0x0542
#BYTE CMPCON2 = 0x0544
#BYTE CMPDAC2 = 0x0546
//
//// Affectation des signaux
#define LED_BLINK PIN_A1
#define TRIGGER_ENABLE PIN_B5
#define POWER_ENABLE PIN_B15
#define TIMER1_VALUE 0x8FF2 // 50 ms
#define TIMER2_VALUE 0x8FF2 // 50 ms
#define TICK_BLINK_LED 50
////////////////////////
// Variables Globales //
////////////////////////
enum
{
RS232_WAITING = 0,
RS232_COMMAND = 1,
RS232_HARG = 2,
RS232_LARG = 3,
RS232_END = 4,
RS232_TIMEOUT = 10
} RS232_serial_state = 0;
unsigned int16 tick_counter_blink_led; // compteur clignotement leds
int1 bStateBlinkingLed; // Indicateur état led clignottante
unsigned int8 SerialCommand;
unsigned int8 SerialHArg;
unsigned int8 SerialLArg;
int1 NouvelleCommandeRS232;
///////////////////////////
// CONFIGURATION DSPIC33 //
///////////////////////////
#USE FAST_IO(a)
#USE FAST_IO(b)
////////////////////////////
// Routine d'interruption //
////////////////////////////
#INT_TIMER1
void timer1_interrupt_handler()
{
// Le timer est réglé pour ticker toutes les 50 ms
set_timer1(TIMER1_VALUE);
// Gestion led clignotante
tick_counter_blink_led ++;
if(tick_counter_blink_led > TICK_BLINK_LED)
{
bStateBlinkingLed ++;
tick_counter_blink_led = 0;
}
}
#INT_TIMER2
void timer2_interrupt_handler()
{
if(RS232_serial_state != RS232_WAITING)
{
RS232_serial_state = RS232_TIMEOUT;
}
}
#INT_RDA
void RS232_interrupt_handler()
{
char c;
c = fgetc(COM_A);
switch(RS232_serial_state)
{
case RS232_WAITING :
if(c == 0x02) // STX
{
RS232_serial_state = RS232_COMMAND;
set_timer2(TIMER2_VALUE);
}
break;
case RS232_COMMAND :
SerialCommand = c;
RS232_serial_state = RS232_HARG;
set_timer2(TIMER2_VALUE);
break;
case RS232_HARG :
SerialHArg = c;
RS232_serial_state = RS232_LARG;
set_timer2(TIMER2_VALUE);
break;
case RS232_LARG :
SerialLArg = c;
RS232_serial_state = RS232_END;
set_timer2(TIMER2_VALUE);
break;
case RS232_END :
if(SerialCommand == 0x03)
{
NouvelleCommandeRS232 = 1;
}
else
{
NouvelleCommandeRS232 = 0;
SerialCommand = 0;
SerialHArg = 0;
SerialLArg = 0;
}
RS232_serial_state = RS232_WAITING;
break;
case RS232_TIMEOUT :
printf("%x%x",0xFF, 0x02);
NouvelleCommandeRS232 = 0;
SerialCommand = 0;
SerialHArg = 0;
SerialLArg = 0;
RS232_serial_state = RS232_WAITING;
break;
default:
RS232_serial_state = RS232_WAITING;
break;
}
}
/////////////////////////
// Programme principal //
/////////////////////////
void main()
{
unsigned int16 PuissanceEclairage;
int16 iConfigPortA = 1 | // RA0 : ADC_IN
0<<1 | // RA1 : LED_BLINK
0<<2 | // RA2 : GND
0<<3 | // RA3 : GND
0<<4 | // RA4 : GND
0<<5 | // RA5 : Unimplemented
0<<6 | // RA6 : Unimplemented
0<<7 | // RA7 : Unimplemented
0<<8 | // RA8 : Unimplemented
0<<9 | // RA9 : Unimplemented
0<<10 | // RA10 : Unimplemented
0<<11 | // RA11 : Unimplemented
0<<12 | // RA12 : Unimplemented
0<<13 | // RA13 : Unimplemented
0<<14 | // RA14 : Unimplemented
0<<15; // RA15 : Unimplemented
int16 iConfigPortB = 1 | // RB0 : SERIAL_IN
0<<1 | // RB1 : SERIAL_OUT
0<<2 | // RB2 : GND
0<<3 | // RB3 : DAC_OUT
0<<4 | // RB4 : GND
0<<5 | // RB5 : TRIGGER_ENABLE
0<<6 | // RB6 : PGED
0<<7 | // RB7 : PGEC
0<<8 | // RB8 : GND
0<<9 | // RB9 : GND
0<<10 | // RB10 : GND
0<<11 | // RB11 : GND
0<<12 | // RB12 : GND
0<<13 | // RB13 : GND
0<<14 | // RB14 : GND
0<<15; // RB15 : POWER_ENABLE
//// ////
//// Initialisations ////
//// ////
//
//// DAC
int iConfigCMPCON1 = 1 | // RANGE : High range = 1
0<<1 | // CMPPOL : Comparator Output Polarity Control Bit
1<<2 | // HGAIN : DAC Gain Enable bit
0<<3 | // CMPSTAT : Current state of Comparator output
0<<4 | // HYSPOL : Comparator Hysteresis Polarity selection bit
0<<5 | // EXTREF : Internal reference source provide reference to DAC
0<<6 | // INSEL 0 : Select CMPxC input pin
1<<7 | // INSEL 1 : Select CMPxC input pin
1<<8 | // DACOE : DAC Output Enable
0<<9 | // FCLKSEL : Digital filter and pulse stretcher clock selection bit
1<<10 | // FLTREN : Digital filter enable bit
0<<11 | // HYSSEL 0 : Comparator hysteresis select bits
0<<12 | // HYSSEL 1 : Comparator hysteresis select bits
0<<13 | // CMPSIDL : Stop in iddle mode bit
0<<14 | // Unimplemented
1<<15; // CMPON : Comparator Operating Mode bit
int iConfigCMPCON2 = 1 | // RANGE : High range = 1
0<<1 | // CMPPOL : Comparator Output Polarity Control Bit
1<<2 | // HGAIN : DAC Gain Enable bit
0<<3 | // CMPSTAT : Current state of Comparator output
0<<4 | // HYSPOL : Comparator Hysteresis Polarity selection bit
0<<5 | // EXTREF : Internal reference source provide reference to DAC
0<<6 | // INSEL 0 : Select CMPxC input pin
1<<7 | // INSEL 1 : Select CMPxC input pin
0<<8 | // DACOE : DAC Output Enable
0<<9 | // FCLKSEL : Digital filter and pulse stretcher clock selection bit
1<<10 | // FLTREN : Digital filter enable bit
0<<11 | // HYSSEL 0 : Comparator hysteresis select bits
0<<12 | // HYSSEL 1 : Comparator hysteresis select bits
0<<13 | // CMPSIDL : Stop in iddle mode bit
0<<14 | // Unimplemented
0<<15; // CMPON : Comparator Operating Mode bit
//CMPCON1 = iConfigCMPCON1;
//CMPCON2 = iConfigCMPCON2;
CMPCON1 = 0x8585;
CMPCON2 = 0x0485;
//
//// Ports I/O
set_tris_a(iConfigPortA);
set_tris_b(iConfigPortB);
//
//// Configuration des résistances tirées au GND
output_low(PIN_A2);
output_low(PIN_A3);
output_low(PIN_A4);
output_low(PIN_B2);
output_low(PIN_B4);
output_low(PIN_B8);
output_low(PIN_B9);
output_low(PIN_B10);
output_low(PIN_B11);
output_low(PIN_B12);
output_low(PIN_B13);
output_low(PIN_B14);
//
//// Initialisation des divers signaux
output_low(LED_BLINK);
output_low(TRIGGER_ENABLE);
output_low(POWER_ENABLE);
//
//// Initialisation variables
bStateBlinkingLed = 0;
tick_counter_blink_led = 0;
SerialCommand = 0;
SerialHArg = 0;
SerialLArg = 0;
NouvelleCommandeRS232 = 0;
//
//// Timer 1 (Led clignotante)
set_timer1(TIMER1_VALUE);
setup_timer1(TMR_INTERNAL);
clear_interrupt(INT_TIMER1);
enable_interrupts(INT_TIMER1);
//
//// Timer 2 (Timout reception RS232)
setup_timer2(TMR_INTERNAL);
clear_interrupt(INT_TIMER2);
enable_interrupts(INT_TIMER2);
//
//// Enable global interrupts
enable_interrupts(INTR_GLOBAL);
//
//// Boucle de fonctionnement
do
{
// Gestion Led clignotante
if(bStateBlinkingLed)
{
output_high(LED_BLINK);
}
else
{
output_low(LED_BLINK);
}
// Gestion commandes RS232
/*if(NouvelleCommandeRS232)
{
switch(SerialCommand)
{
// Définition du mode de fonctionnement
case 0x00:
if(SerialLArg == 0x01)
{
// Mode Flash
output_high(TRIGGER_ENABLE);
printf("%x%x",0x00, 0x00);
}
else if(SerialLArg == 0x02)
{
// Mode Eclairage
output_low(TRIGGER_ENABLE);
printf("%x%x",0x00, 0x00);
}
else
{
printf("%x%x",0x00, 0x01);
}
break;
// Enable Light (mode Eclairage)
case 0x01:
if(SerialLArg == 0x01)
{
output_high(POWER_ENABLE);
printf("%x%x",0x01, 0x00);
}
else if(SerialLArg == 0x02)
{
output_low(POWER_ENABLE);
printf("%x%x",0x01, 0x00);
}
else
{
printf("%x%x",0x01, 0x01);
}
break;
// Réglage puissance éclairage
case 0x02:
PuissanceEclairage = (SerialHArg << 8) + SerialLArg;
CMPDAC1 = PuissanceEclairage & 0x03FF;
printf("%x%x",0x02, 0x00);
break;
// Unknown command
default:
printf("%x%x",0xFF, 0x01);
break;
}
NouvelleCommandeRS232 = 0;
}*/
//
//// Tests
output_low(TRIGGER_ENABLE);
output_high(POWER_ENABLE);
CMPDAC1 = 500;
}
while (TRUE);
} |
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newguy
Joined: 24 Jun 2004
Posts: 1909
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| Posted: Wed Dec 18, 2013 12:54 pm |
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| Almost. You want #word not #byte. |
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temtronic
Joined: 01 Jul 2010
Posts: 9241
Location: Greensville,Ontario
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| Posted: Wed Dec 18, 2013 3:13 pm |
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real close !!
you have ...
#BYTE CMPCON1 = 0x0540
...which means that 'CMPCON1' is 8 bits long( a byte) located at 0x540
you really need
#WORD CMPCON1 = 0x0540
...which means that 'CMPCON1' is 16 bits long( a word) located at 0x540
hth
jay |
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Fabrici
Joined: 11 Feb 2013
Posts: 19
Location: Toulouse - France
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| Posted: Thu Dec 19, 2013 4:01 am |
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A big thanks for the help.
It works perfectly now (at least for this part ^^).
Have a nice day. |
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Ttelmah
Joined: 11 Mar 2010
Posts: 19537
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| Posted: Thu Dec 19, 2013 9:15 am |
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As a comment, there is also a way of doing larger things.
#BYTE can be used two different ways.
By default it creates a 'byte' sized variable at a location. #WORD creates a 16bit variable at a location.
However you can also use it like this:
| Code: |
int32 val;
#BYTE val=0x1234
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Done like this, #BYTE _locates_ the already defined variable at the specified memory address. This allows you to define things like fp values, or even arrays at a particular location in RAM.
Can be useful sometimes. 
Best Wishes |
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