#include<stdio.h>
#include<p18f46k22.h>
#include "usart.h"
//#define USE_OR_MASKS
unsigned char Rxdata[8];
unsigned char Txdata[] = "test";
void delay(unsigned int i)
{
for(;i>1;i--);
}
void main(void)
{
unsigned char config=0,spbrg=0,baudconfig=0,i=0,j='a';
OSCCONbits.IRCF0 =1;
OSCCONbits.IRCF1 = 1;
OSCCONbits.IRCF2 = 1;
OSCTUNEbits.PLLEN = 1;
ANSELA = 0x00;
ANSELB = 0x00;
ANSELC = 0x00;
ANSELD = 0x00;
ANSELE = 0x00;
TRISA=0x00;
TRISB=0X0000; //output
TRISC=0Xffff; //output
TRISD=0X00; //output
TRISE=0X00; //output
Close1USART(); //turn off usart if was previously on
//-----configure USART -----
config = USART_TX_INT_OFF | USART_RX_INT_OFF | USART_ASYNCH_MODE | USART_EIGHT_BIT | USART_SINGLE_RX | USART_BRGH_LOW;
//-----SPBRG needs to be changed depending upon oscillator frequency-------
spbrg = 51; //At 8Mhz of oscillator frequency & baud rate of 2400.
Open1USART(config, spbrg); //API configures USART for desired parameters
baudconfig = BAUD_8_BIT_RATE | BAUD_AUTO_OFF;
baud1USART (baudconfig);
//------USART Transmission ----
while(Busy1USART()); //Check if Usart is busy or not
puts1USART((char *)Txdata); //transmit the string
Close1USART();
while(1); //end of program
}
//18 sept 2013
//03/07/2012
// Pickit3
// TESTE OK en lecture
// attention: use radix decimal !!
// C18 MPLAB
// directory : _C18\MesProjets_C18\_18F46K22
// Projet :_C18\MesProjets_C18\_18F46K22\18F46K22_test_RS232.mcp
// Source : 18F26K22_test_RS232.c
/*
========== HARDWARE ====================
27 pf Q=10Mhz 27pF
Interface DS275 pour liaison UART TTL <-> RS232
PIC 18F26K22 28 pins DIP
PortB
RB0 21 input
RB1 22
RB2 23
RB3 24
RB4 25
RB5 26
RB6 27 ICSP_Clck Bleu fonce Pin5 Pickit2
RB7 28 ICSP_Data Bleu clair Pin4 Pickit2
PORTA
RA0 2 Analog Input for AC line meaurement
RA1 3
RA2 4
RA3 5
RA4 6 Output .. Led .. 390 ohms +5V
RA5 7 Output
RA6 8 ----- Quartz 10Mhz C=22pF -- Gnd
RA7 9 ------ Quartz --- C=22pF -- Gnd
PORTC
RC0 11
RC1 12
RC2 13
RC3 14
RC4 15 SCL I2C LCD4x20
RC5 16 SDA I2C LCD4x20 depend si DTE ou DCE
RC6 17 TX UART1 --Blc--- 3 de DS275 7 -- blanc ----> 2HE10 -nappe --DB9M DB9F cable RS232 PC
RC7 18 RX UART1 --rouge- 1 de DS275 5 ---bleu Fce -< 3HE10 -nappe --DB9M DB9F cable RS232 PC
Gnd ------------------------------------------>5 HE10 -nappe ---DB9M DB9F cable RS232 PC
1 --- jaune -- VPP/MCLR --- pin1 Pickit2
8 ---- blanc ------Gnd----- pin3 Pickit2
VSS 8 ---- GND Power
VSS 19 ---- GND Power
VDD 20 ---- +5V Power
*/
#include "p18f26k22.h"
#define p18f26k22
#define Versus "Versus 130917 C18 "
#include "stdio.h"
#include <stdlib.h>
#include <delays.h>
#include <string.h>
#include <usart.h> // pour fonctions UART HARDWARE
#include <adc.h>
#include <ctype.h>
#include <portb.h>
#include <timers.h>
#include <math.h>
// configuration bits set in code !
// voir Help
// Topics
// Pic18
// config bits settings
// choisir PIC18F26K22
#ifdef OSCILLATEUR_INTERNE
#pragma config FOSC = INTIO67, FCMEN = OFF, PLLCFG=OFF // CONFIG1H
#else
#pragma config FOSC = HSMP, PLLCFG=OFF, PRICLKEN=ON ,FCMEN=OFF // quartz 10Mhz
#endif
#pragma config IESO=OFF,PWRTEN=OFF,BOREN=OFF,WDTEN=OFF,CCP2MX=PORTC1
#pragma config PBADEN=OFF,T3CMX=PORTC0,P2BMX=PORTC0,CCP3MX=PORTB5
#pragma config MCLRE=EXTMCLR,STVREN=OFF,LVP=ON,XINST=OFF,DEBUG=OFF
#pragma config CP0 = OFF, CP1 = OFF, CP2 = OFF, CP3 = OFF // CONFIG5L
#pragma config CPB = OFF, CPD = OFF // CONFIG5H
#pragma config WRT0 = OFF, WRT1 = OFF, WRT2 = OFF, WRT3 = OFF // CONFIG6L
#pragma config WRTB = OFF, WRTC = OFF, WRTD = OFF // CONFIG6H
#pragma config EBTR0 = OFF, EBTR1 = OFF, EBTR2 = OFF, EBTR3 = OFF // CONFIG7L
#pragma config EBTRB = OFF // CONFIG7H
// config vue sur Pickit3 : 2200 3C18 9900 0084 C00F E00F 400F
#ifndef Byte
#define Byte unsigned char
#endif
// Using Q=10Mhz Clock
#define CLOCK_FREQ 10000000L
#define FOSC 10000000
#define DureeCycle 10 // * 1 diziemes de secondes => 1,0sec
// Attention use Radix decimal in MPASM options
#define CLS 12
#define BS 8
#define TAB 9
#define CR 13
#define LF 10
#define Bell 7
#define ON 0 // logique inverse avec led tiree au +5V
#define OFF 1
#define Led_Rouge PORTAbits.RA4
#define Allume 0
#define Eteint 1
#define MAX_LEN 80
unsigned int i,j,k;
unsigned int dummy;
unsigned int j1;
unsigned int M;
unsigned int BRG_REG;
volatile int i1;
volatile char c1;
volatile int count;
volatile unsigned int ErrComm;
long L;
char Texte[]="18F26K22 test RS232 C18\r\n 03/07/2012 rev a\n\r19200bds Quartz 10Mhz \r\n\0";
char *txt;
char buffer[MAX_LEN]="00000000000000000000000"; // buffer de reception
char received;
//--------- RS232 UART HARDWARE --------------
void Init_UART1(void);
int PutStr_RS(char *s);
void Put_RS(char * untel);
void CRLF();
void Tempo(long val);
void Octet2Hex(unsigned char number);
void Decompile_byte(Byte un);
void InterruptHandlerHigh (void);
void Decompile_byte(Byte un) {
Byte masque;
masque = 0x80;
while (masque > 0u )
{
if (un & masque)
Put_RS(49u); // '1'
else
Put_RS(48u); // '0'
masque =masque >>1;
}
}
void Octet2Hex(unsigned char number)
{
char high,low;
// high nibble
high = ((number & 0xF0) >> 4) + 48; // + '0'
if (high > '9')
high =high + 7;
// low nibble
low = (number & 0x0F) + 48; // +'0' low nibble
if (low > '9') // '9'= 57u
low += 7; // > '9'
Put_RS(high);
Put_RS(low);
Put_RS('h');
}
//gestionnaire d'interruption
//------------------------------
// High priority interrupt vector
#pragma code InterruptVectorHigh = 0x08
void InterruptVectorHigh (void)
{
_asm
goto InterruptHandlerHigh //jump to interrupt routine
_endasm
}
// High priority interrupt routine
#pragma code
#pragma interrupt InterruptHandlerHigh
void InterruptHandlerHigh ()
{
static char i ; // doit être statique pour conserver sa valeur entre les IT
char C ;
//======== SERIAL======================
if(PIR1bits.RC1IF) // si une interruption UART1 arrive
{
c1 =Read1USART(); // le lire => RAZ RCIF
if(RCSTA1bits.FERR==1 )
{
RCSTA1bits.SPEN = 0 ;
RCSTA1bits.SPEN= 1 ;
c1 =Read1USART();
ErrComm++;
}
if (RCSTA1bits.OERR==1) // voir parag 16.1.26 p273
{
RCSTA1bits.CREN = 0 ;
RCSTA1bits.CREN = 1 ;
ErrComm++;
c1 =Read1USART(); // le lire => RAZ RCIF
}
// if you want to echoed ,uncomment the 2 following lines
// while(Busy1USART()); // par sécurité
// if (PORTBbits.RB1==0) Write1USART(C); // echo
if(C != CR && i<MAX_LEN)
{
buffer[i++]=C ; // stockage
}else
{
buffer[i]='\0'; // fin de chaîne si CR
i=0;
received =1;
} //if PIRbits.RCIF
}
} // fin de routine interrupts
void Init_UART1(void)
{
// USART_BRGH_HIGH,32
// init 38400Bd a 20Mhz
// init 19200Bd a 10Mhz avec IT en rx
// voir para 18.5 spec sheet DS41159B page 186
Open1USART( USART_TX_INT_OFF &
USART_RX_INT_ON &
USART_ASYNCH_MODE &
USART_EIGHT_BIT &
USART_CONT_RX &
USART_BRGH_HIGH,32
);
INTCONbits.PEIE = 0 ; // autorisation des IT des périphériques
INTCONbits.GIE = 0 ; // autorisation globale des IT
}
int PutStr_RS(char *s)
{
int n;
for (n = 0; *s; n++, s++)
{
Put_RS(*s);
}
return n;
}
void Put_RS(char * untel)
{
while(Busy1USART());
Write1USART(untel);
}
void CRLF()
{
Put_RS(CR); Put_RS(LF);
}
void Tempo(long val)
{
while(val>0){val--;}
}
void main()
{
char a;
unsigned char d;
//OSCCON =0b01100000;
ANSELA=0;
TRISA = 0b00001111 ;
TRISAbits.TRISA4 = 0; // led rouge
LATA = 0x00;
ANSELC=0;
TRISCbits.TRISC6 = 0;
TRISCbits.TRISC7 = 1;
Led_Rouge=Allume;
Init_UART1();
Put_RS(CLS); // clear Vbray terminal Screen
Tempo(150000L);
Put_RS('*');
CRLF();
Put_RS('#');
CRLF();
// init pour interruptions ----
INTCONbits.GIE = 1; // active global interrupt
INTCONbits.GIEL=1;
RCSTA1bits.CREN= 1 ;
PIE1bits.RC1IE = 1;
INTCONbits.PEIE = 1; // autorisation des IT des périphériques
ErrComm=0;
buffer[0]=0;
received=0;
txt=&Texte[0];
k=PutStr_RS(txt);
CRLF();
Tempo(20000);
// write to the USART
k=fprintf(_H_USART,"Init UART 19200bds Q=10Mhz\r\n");
k=fprintf(_H_USART,"hello\r\n");
k=fprintf(_H_USART,"Type some chars and CR to send them: ");
buffer[0]=0;
while(1)
{
if (received==1) // test if reception occured
{
j=0;
Led_Rouge=Allume;
k= fprintf(_H_USART,"\r\nKeyboard entry : ");
while (buffer[j]!=0)
{
a=buffer[j];
Put_RS(a);
j++;
}
received=0;
buffer[0]=0;
}
Tempo(25000L);
Led_Rouge=!Led_Rouge;
}
}
/* results on Vbray terminal
#
18F26K22 test RS232 C18
03/07/2012 rev a
19200bds Quartz 10Mhz
Init UART 19200bds Q=10Mhz
hello
Type some chars and CR to send them:
Keyboard entry :
Keyboard entry : hello chaps !
Keyboard entry : How are you today ?
*/
