hallo my project is using the ie to control the LED at another arduino using NRF24L01.
did any one have an example? now i am able to create a web server and NRF24L01 send data. but when i combine them together, the NRF24L01 not working at all. anyone can help??? please and thank
is that because of the arduino cannot share the ICSP pin?
if yes, any solution ?
terrancelim:
is that because of the arduino cannot share the ICSP pin?
Normally, it is because the programmer cannot share (edit: fails to manage) the slave select pins until the individual libraries take over. That would include the uSD if you have a memory card in the ethernet shield slot.
if yes, any solution ?
Maybe. Post your code.
Normally, it is because the programmer cannot share (edit: fails to manage) the slave select pins until the individual libraries take over. That would include the uSD if you have a memory card in the ethernet shield slot.
if yes, any solution ?
Maybe. Post your code.
[/quote]
i haven start combine the code together, now what i test is i use this code to send out the data. but when i combine the arduino ethernet circuit, it not function, any extra code i need to add in?
yes, i am going to use the sd card function in my project.
#include "NRF24L01.h"
//***************************************************
#define TX_ADR_WIDTH 5 // 5 unsigned chars TX(RX) address width
#define TX_PLOAD_WIDTH 32 // 32 unsigned chars TX payload
unsigned char TX_ADDRESS[TX_ADR_WIDTH] =
{
0x34,0x43,0x10,0x10,0x01
}; // Define a static TX address
unsigned char rx_buf[TX_PLOAD_WIDTH] = {0}; // initialize value
unsigned char tx_buf[TX_PLOAD_WIDTH] = {0};
//***************************************************
void setup()
{
SPI_DIR = ( CE + SCK + CSN + MOSI);
SPI_DIR &=~ ( IRQ + MISO);
// attachInterrupt(1, _ISR, LOW);// interrupt enable
Serial.begin(9600);
init_io(); // Initialize IO port
unsigned char status=SPI_Read(STATUS);
Serial.print("status = ");
Serial.println(status,HEX); // There is read the mode鈥檚 status register, the default value should be 鈥楨鈥?
Serial.println("*******************TX_Mode Start****************************");
TX_Mode(); // set TX mode
}
void loop()
{
int k = 0;
for(;;)
{
for(int i=0; i<32; i++)
tx_buf[i] = k++;
unsigned char status = SPI_Read(STATUS); // read register STATUS's value
if(status&TX_DS) // if receive data ready (TX_DS) interrupt
{
SPI_RW_Reg(FLUSH_TX,0);
SPI_Write_Buf(WR_TX_PLOAD,tx_buf,TX_PLOAD_WIDTH); // write playload to TX_FIFO
}
if(status&MAX_RT) // if receive data ready (MAX_RT) interrupt, this is retransmit than SETUP_RETR
{
SPI_RW_Reg(FLUSH_TX,0);
SPI_Write_Buf(WR_TX_PLOAD,tx_buf,TX_PLOAD_WIDTH); // disable standy-mode
}
SPI_RW_Reg(WRITE_REG+STATUS,status); // clear RX_DR or TX_DS or MAX_RT interrupt flag
delay(1000);
}
}
//**************************************************
// Function: init_io();
// Description:
// flash led one time,chip enable(ready to TX or RX Mode),
// Spi disable,Spi clock line init high
//**************************************************
void init_io(void)
{
SPI_PORT&=~CE; // chip enable
SPI_PORT|=CSN; // Spi disable
SPI_PORT&=~SCK; // Spi clock line init high
}
/**************************************************
* Function: SPI_RW();
*
* Description:
* Writes one unsigned char to nRF24L01, and return the unsigned char read
* from nRF24L01 during write, according to SPI protocol
**************************************************/
unsigned char SPI_RW(unsigned char Byte)
{
unsigned char i;
for(i=0;i<8;i++) // output 8-bit
{
if(Byte&0x80)
{
SPI_PORT |=MOSI; // output 'unsigned char', MSB to MOSI
}
else
{
SPI_PORT &=~MOSI;
}
SPI_PORT|=SCK; // Set SCK high..
Byte <<= 1; // shift next bit into MSB..
if(SPI_IN & MISO)
{
Byte |= 1; // capture current MISO bit
}
SPI_PORT&=~SCK; // ..then set SCK low again
}
return(Byte); // return read unsigned char
}
/**************************************************/
/**************************************************
* Function: SPI_RW_Reg();
*
* Description:
* Writes value 'value' to register 'reg'
/**************************************************/
unsigned char SPI_RW_Reg(unsigned char reg, unsigned char value)
{
unsigned char status;
SPI_PORT&=~CSN; // CSN low, init SPI transaction
status = SPI_RW(reg); // select register
SPI_RW(value); // ..and write value to it..
SPI_PORT|=CSN; // CSN high again
return(status); // return nRF24L01 status unsigned char
}
/**************************************************/
/**************************************************
* Function: SPI_Read();
*
* Description:
* Read one unsigned char from nRF24L01 register, 'reg'
/**************************************************/
unsigned char SPI_Read(unsigned char reg)
{
unsigned char reg_val;
SPI_PORT&=~CSN; // CSN low, initialize SPI communication...
SPI_RW(reg); // Select register to read from..
reg_val = SPI_RW(0); // ..then read register value
SPI_PORT|=CSN; // CSN high, terminate SPI communication
return(reg_val); // return register value
}
/**************************************************/
/**************************************************
* Function: SPI_Read_Buf();
*
* Description:
* Reads 'unsigned chars' #of unsigned chars from register 'reg'
* Typically used to read RX payload, Rx/Tx address
/**************************************************/
unsigned char SPI_Read_Buf(unsigned char reg, unsigned char *pBuf, unsigned char bytes)
{
unsigned char status,i;
SPI_PORT&=~CSN; // Set CSN low, init SPI tranaction
status = SPI_RW(reg); // Select register to write to and read status unsigned char
for(i=0;i<bytes;i++)
{
pBuf[i] = SPI_RW(0); // Perform SPI_RW to read unsigned char from nRF24L01
}
SPI_PORT|=CSN; // Set CSN high again
return(status); // return nRF24L01 status unsigned char
}
/**************************************************/
/**************************************************
* Function: SPI_Write_Buf();
*
* Description:
* Writes contents of buffer '*pBuf' to nRF24L01
* Typically used to write TX payload, Rx/Tx address
/**************************************************/
unsigned char SPI_Write_Buf(unsigned char reg, unsigned char *pBuf, unsigned char bytes)
{
unsigned char status,i;
SPI_PORT&=~CSN; // Set CSN low, init SPI tranaction
status = SPI_RW(reg); // Select register to write to and read status unsigned char
for(i=0;i<bytes; i++) // then write all unsigned char in buffer(*pBuf)
{
SPI_RW(*pBuf++);
}
SPI_PORT|=CSN; // Set CSN high again
return(status); // return nRF24L01 status unsigned char
}
/**************************************************/
/**************************************************
* Function: TX_Mode();
*
* Description:
* This function initializes one nRF24L01 device to
* TX mode, set TX address, set RX address for auto.ack,
* fill TX payload, select RF channel, datarate & TX pwr.
* PWR_UP is set, CRC(2 unsigned chars) is enabled, & PRIM:TX.
*
* ToDo: One high pulse(>10us) on CE will now send this
* packet and expext an acknowledgment from the RX device.
**************************************************/
void TX_Mode(void)
{
SPI_PORT&=~CE;
SPI_Write_Buf(WRITE_REG + TX_ADDR, TX_ADDRESS, TX_ADR_WIDTH); // Writes TX_Address to nRF24L01
SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, TX_ADDRESS, TX_ADR_WIDTH); // RX_Addr0 same as TX_Adr for Auto.Ack
SPI_RW_Reg(WRITE_REG + EN_AA, 0x01); // Enable Auto.Ack:Pipe0
SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01); // Enable Pipe0
SPI_RW_Reg(WRITE_REG + SETUP_RETR, 0x1a); // 500us + 86us, 10 retrans...
SPI_RW_Reg(WRITE_REG + RF_CH, 40); // Select RF channel 40
SPI_RW_Reg(WRITE_REG + RF_SETUP, 0x07); // TX_PWR:0dBm, Datarate:2Mbps, LNA:HCURR
SPI_RW_Reg(WRITE_REG + CONFIG, 0x0e); // Set PWR_UP bit, enable CRC(2 unsigned chars) & Prim:TX. MAX_RT & TX_DS enabled..
SPI_Write_Buf(WR_TX_PLOAD,tx_buf,TX_PLOAD_WIDTH);
SPI_PORT|=CE;
}
I doubt you have italics in your original code.
Edit your post and surround your code with and