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Hussien Ali
Hussien Ali

posted on 2020/08/19 01:10:55 PM CEST

Communication

Rfid Click with Easy Pic V8

I tried to make the Rfid click work with Easypicv8 but it didn't and the code you will find below.

Code:-

// CR95HF Commands Definition
#define IDN 0x01
#define ProtocolSelect 0x02
#define SendRecv 0x04
#define Idle 0x07
#define RdReg 0x08
#define WrReg 0x09
#define BaudRate 0x0A
#define ECHO 0x55

// RFID Click Connections
sbit SSI_1 at LATA.B2;
sbit SSI_0 at LATE.B1;
sbit IRQ_IN at LATC.B0;
sbit CS at LATE.B0;

sbit SSI_1_Direction at TRISA.B2;
sbit SSI_0_Direction at TRISE.B1;
sbit IRQ_IN_Direction at TRISC.B0;
sbit CS_Direction at TRISE.B0;
// End RFID Click module connections

//Lcd module connections
sbit LCD_RS at LATA3_bit;
sbit LCD_EN at LATB1_bit;
sbit LCD_D4 at LATB2_bit;
sbit LCD_D5 at LATB3_bit;
sbit LCD_D6 at LATB4_bit;
sbit LCD_D7 at LATB5_bit;

sbit LCD_RS_Direction at TRISA3_bit;
sbit LCD_EN_Direction at TRISB1_bit;
sbit LCD_D4_Direction at TRISB2_bit;
sbit LCD_D5_Direction at TRISB3_bit;
sbit LCD_D6_Direction at TRISB4_bit;
sbit LCD_D7_Direction at TRISB5_bit;
//End of Lcd module connections

unsigned short sdata[18];
unsigned short rdata[18];
unsigned short res = 0, dataNum = 0;
unsigned short j = 0, tmp = 0;
char ID[10] = {0};
char txt_hex[3];

// Write command to the CR95HF
void writeCmd(unsigned short cmd, unsigned short dataLen){
unsigned short i = 0;

CS = 0;
SPI1_Write(0x00); // Send cmd to CR95HF
SPI1_Write(cmd);
SPI1_Write(dataLen);
while (dataLen == 0){
CS = 1;
break;
}
for(i=0; i<dataLen; i++){
SPI1_Write(sdata[i]);
}
CS = 1;
}

// Poll the CR95HF
void readCmd(){
unsigned short i = 0;

while(1){
CS = 0;
SPI1_Write(0x03);
res = SPI1_Read(0);
CS = 1;

if((res & 0x08) >> 3){
CS = 0;
SPI1_Write(0x02);
res = SPI1_Read(0);
dataNum = SPI1_Read(0);
for(i=0; i<dataNum; i++)
rdata[i] = SPI1_Read(0);
CS = 1;
break;
}
CS = 1;
Delay_ms(10);
}
}

// Calibrate CR95HF device
void Calibration() {
//TFT_Write_Text("Calibrating CR95HF...", 55, 100);
sdata[0] = 0x03;
sdata[1] = 0xA1;
sdata[2] = 0x00;
sdata[3] = 0xF8;
sdata[4] = 0x01;
sdata[5] = 0x18;
sdata[6] = 0x00;
sdata[7] = 0x20;
sdata[8] = 0x60;
sdata[9] = 0x60;
sdata[10] = 0x00;
sdata[11] = 0x00;
sdata[12] = 0x3F;
sdata[13] = 0x01;
writeCmd(Idle, 0x0E);
readCmd();

sdata[11] = 0xFC;
writeCmd(Idle, 0x0E);
readCmd();

sdata[11] = 0x7C;
writeCmd(Idle, 0x0E);
readCmd();

sdata[11] = 0x3C;
writeCmd(Idle, 0x0E);
readCmd();

sdata[11] = 0x5C;
writeCmd(Idle, 0x0E);
readCmd();

sdata[11] = 0x6C;
writeCmd(Idle, 0x0E);
readCmd();

sdata[11] = 0x74;
writeCmd(Idle, 0x0E);
readCmd();

sdata[11] = 0x70;
writeCmd(Idle, 0x0E);
readCmd();
}

// Select the RF communication protocol (ISO/IEC 14443-A)
void Select_ISO_IEC_14443_A_Protocol() {
sdata[0] = 0x02;
sdata[1] = 0x00;
writeCmd(ProtocolSelect, 2);
readCmd();

// Clear read and write buffers
for(j=0; j<18; j++ ){
rdata[j] = 0;
sdata[j] = 0;
}
}

// Configure IndexMod & Gain
void IndexMod_Gain() {
sdata[0] = 0x09;
sdata[1] = 0x04;
sdata[2] = 0x68;
sdata[3] = 0x01;
sdata[4] = 0x01;
sdata[5] = 0x50;
writeCmd(WrReg, 6);
readCmd();
}

// Configure Auto FDet
void AutoFDet() {
sdata[0] = 0x09;
sdata[1] = 0x04;
sdata[2] = 0x0A;
sdata[3] = 0x01;
sdata[4] = 0x02;
sdata[5] = 0xA1;
writeCmd(WrReg, 6);
readCmd();
}

// Read the tag ID
char GetNFCTag() {
sdata[0] = 0x26;
sdata[1] = 0x07;
writeCmd(SendRecv , 2);
readCmd();

sdata[0] = 0x93;
sdata[1] = 0x20;
sdata[2] = 0x08;
writeCmd(SendRecv , 3);
readCmd();

if(res == 0x80) {
for( j = 1; j < dataNum - 3; j++) {
ByteToHex(rdata[j], txt_hex);
strcat(ID, txt_hex);
LATD.B0 = 1;
}
ID[10] = 0;
return 1;
}
else
{
LATD.B0 = 0;
return 0;
}
}

// Initialize MCU and peripherals
void MCU_Init(){
// Configure RFid Click pins
ANSELA = 0;
ANSELB = 0;
ANSELC = 0;
ANSELD = 0;
ANSELE = 0;
SLRCONE = 0;

CS_Direction = 0;
IRQ_IN_Direction = 0;
SSI_0_Direction = 0;
SSI_1_Direction = 0;

IRQ_IN = 1;
CS = 1;
// Set in SPI mode + Jumper wire workaround required, see header notes
SSI_1 = 0;
SSI_0 = 1;
// Initialize SPI module
SPI1_Init_Advanced(_SPI_MASTER_OSC_DIV16, _SPI_DATA_SAMPLE_MIDDLE, _SPI_CLK_IDLE_LOW, _SPI_LOW_2_HIGH);
UART1_Init(9600);
Lcd_Init(); // Initialize Lcd
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF); // Cursor off
Lcd_Out(1,1,"RFid example"); // Write text in first row
UART1_Write_Text("RFid example\r\n");
}

// Get Echo reponse from CR95HF
char EchoResponse() {
CS = 0;
SPI1_Write(0x00); // Send cmd to CR95HF
SPI1_Write(ECHO);
CS = 1;
while(1){
CS = 0;
SPI1_Write(0x03);
tmp = SPI1_Read(1);
CS = 1;

if((tmp & 0x08) >> 3){
CS = 0;
SPI1_Write(0x02);
tmp = SPI1_Read(1);
CS = 1;
if(tmp == ECHO){
return 1;
}
return 0;
}
}
}

void main() {
MCU_Init(); // Initialize MCU and peripherals
while (!EchoResponse()) { // Until CR95HF is detected
IRQ_IN = 0; // put IRQ_IN pin at low level
Delay_ms(10);
IRQ_IN = 1; // put IRQ_IN pin at low level
Delay_ms(10);
}
Lcd_Out(2, 1, "Calibration..."); // Write text in first row
UART1_Write_Text("Calibration...\r\n");
// Configure RFid
Calibration();
IndexMod_Gain();
AutoFDet();
Select_ISO_IEC_14443_A_Protocol();
// Ready for TAG scanning
Lcd_Cmd(_LCD_CLEAR);
Lcd_Out(1, 1, "Tag ID: "); // Write text in first row
UART1_Write_Text("RFid Ready\r\n");
while(1){
if(GetNFCTag()){
Lcd_Cmd(_LCD_CLEAR);
Lcd_Out(1, 1, "saher: "); // Get tag ID
Lcd_Out(2,1, &ID); // Display tag on Lcd
UART1_Write_Text("Tag ID:");
UART1_Write_Text(ID);
UART1_Write(13);
UART1_Write(10);
// Clear ID buffer
for(j=0; j<10; j++){
ID[j] = 0;
}
Delay_ms(500);
}
}
}

Ray shoe
RAY1

posted on 2020/07/18 05:24:07 PM CEST

Communication

nRF24L01 with PIC16F886

Can anyone help me running this project i have tried it with a lot of available code on the web but no luck Im new to this plz help.

Thanks in advance.

Evan Christo
vxristodoulou

posted on 2020/07/12 09:36:33 PM CEST

Communication

nRF24L01 MicroBasic Pro for ARM

Hi,
I was wondering if someone has available library and example code, to use for sending and receiving data using MikroBasic Pro for ARM, STM32F415 and nRF24L01.

Thanks

Lemmy mendoza
hezorte

posted on 2020/04/17 11:24:08 PM CEST

Communication

Pb with uart easypicv7 and pic 16f887

Hey,

My problème is the uart don't give correct information with the lib of mickoe C and the serial monitor.
For exemple i put the character A but the monitor detect lot of information....

Michael Fox
foxware

posted on 2020/02/17 02:06:26 PM CET

Communication > CAN / LIN / RS485

Need example code for using MCP2518FD

Need example code for using MCP2518FD
any language
register setup
transmitting and receiving

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