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posted on 2020/11/24 07:06:59 PM CET
Sensors > Temperature & humidity
I would like to request code for this sensor HTS221 from this board MIKROE-1971 in C for Atmel Studio.
Thank you
posted on 2020/11/13 10:14:46 AM CET
posted on 2020/11/07 05:40:20 PM CET
Hi.
Please provide me an example code to interface TFT Proto 5" on EasyPIC Fusion v7 using PIC32MX795F512L MCUcard.
also mention the necessary Hardware connection diagram.
regards.
posted on 2020/08/19 01:10:55 PM CEST
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);
}
}
}
posted on 2020/08/16 03:49:41 AM CEST
Please i need help on single phase 50Hz spwm code for DSPIC33FJ32GPXXX using MCPWM
