void Nrf24l::send(uint8_t * value)
// Sends a data package to the default address. Be sure to send the correct
// amount of bytes as configured as payload on the receiver.
{
uint8_t status;
status = getStatus();
while (PTX) {
status = getStatus();
if((status & ((1 << TX_DS) | (1 << MAX_RT)))){
PTX = 0;
break;
}
} // Wait until last paket is send
ceLow();
powerUpTx(); // Set to transmitter mode , Power up
flushTx();
nrfSpiWrite(W_TX_PAYLOAD, value, false, payload); // Write payload
ceHi(); // Start transmission
ceLow();
}
void Nrf24l::setRADDR(uint8_t * adr)
// Sets the receiving address
{
ceLow();
writeRegister(RX_ADDR_P1,adr,mirf_ADDR_LEN);
ceHi();
}
void Nrf24l::powerUpRx(){
PTX = 0;
ceLow();
configRegister(CONFIG, mirf_CONFIG | ( (1<<PWR_UP) | (1<<PRIM_RX) ) );
ceHi();
configRegister(STATUS,(1 << TX_DS) | (1 << MAX_RT));
}
void Nrf24l::send(uint8_t * value)
// Sends a data package to the default address. Be sure to send the correct
// amount of bytes as configured as payload on the receiver.
{
uint8_t status;
status = getStatus();
while (PTX) {
status = getStatus();
if((status & ((1 << TX_DS) | (1 << MAX_RT)))){
PTX = 0;
break;
}
} // Wait until last paket is send
ceLow();
powerUpTx(); // Set to transmitter mode , Power up
csnLow(); // Pull down chip select
spi->transfer( FLUSH_TX ); // Write cmd to flush tx fifo
csnHi(); // Pull up chip select
csnLow(); // Pull down chip select
spi->transfer( W_TX_PAYLOAD ); // Write cmd to write payload
transmitSync(value,payload); // Write payload
csnHi(); // Pull up chip select
ceHi(); // Start transmission
}
void Nrf24l::send_head()
// Sends a data package to the default address. Be sure to send the correct
// amount of bytes as configured as payload on the receiver.
{
uint8_t status;
status = getStatus();
while (PTX) {
status = getStatus();
//TX_DS 5 0 R/W 数据发送完成中断。当数据发送完成后产生中
//断。如果工作在自动应答模式下，只有当接收到应答信号后此位置一。
//写‘1’清除中断。
//MAX_RT 4 0 R/W 达到最多次重发中断。
//写‘1’清除中断。
//如果MAX_RT 中断产生则必须清除后系统才
//能进行通讯。
if((status & ((1 << TX_DS) | (1 << MAX_RT)))){
PTX = 0;
break;
}
} // Wait until last paket is send
ceLow();
powerUpTx(); // Set to transmitter mode , Power up
csnLow(); // Pull down chip select
spi->transfer( FLUSH_TX ); // Write cmd to flush tx fifo
csnHi(); // Pull up chip select
csnLow(); // Pull down chip select
//W_RX_PAYLOAD 1010 0000 写TX 有效数据：1-32 字节。写操作从字节0 开始。
//应用于发射模式下
spi->transfer( W_TX_PAYLOAD ); // Write cmd to write payload
}
void Nrf24l::init()
// Initializes pins to communicate with the MiRF module
// Should be called in the early initializing phase at startup.
{
GPIO_InitTypeDef PORT;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOC,ENABLE); // TODO: 根据情况更改
// Configure CE pin as output with Push-Pull
PORT.GPIO_Speed = GPIO_Speed_50MHz;
PORT.GPIO_Pin = nRF24_CE_PIN;
PORT.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(nRF24_CE_PORT,&PORT);
// Configure CS pin as output with Push-Pull
PORT.GPIO_Pin = nRF24_CS_PIN;
PORT.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(nRF24_CS_PORT,&PORT);
// pinMode(cePin,OUTPUT);
// pinMode(csnPin,OUTPUT);
ceLow();
csnHi();
// Initialize spi module
spi->begin();
}
void Nrf24l::powerDown(){
ceLow();
configRegister(CONFIG, baseConfig);
flushRx();
flushTx();
}
void Nrf24l::powerUpRx() {
PTX = 0;
ceLow();
configRegister(CONFIG, baseConfig | _BV(PWR_UP) | _BV(PRIM_RX));
configRegister(STATUS, _BV(RX_DR) | _BV(TX_DS) | _BV(MAX_RT));
ceHi();
}
void powerUpRx(){
PTX = 0;
ceLow();
uint8_t result = mirf_CONFIG | ( (1<<PWR_UP) | (1<<PRIM_RX));
result |= (1<<MASK_MAX_RT) | (1<<MASK_TX_DS); //ativa nIQR apenas quando tem algo para receber (tx mode)
writeRegister(CONFIG, &result,1);
ceHi();
result = (1 << TX_DS) | (1 << MAX_RT);
writeRegister(STATUS,&result,1);
}
nRF24L01p::nRF24L01p(const byte csn,const byte ce):
_csn(csn),_ce(ce){
pinMode(_csn,OUTPUT);
pinMode(_ce,OUTPUT);
csnHigh();
ceLow();
_txIndex=0;
_rxIndex=0;
_prim_rx=false;
_prim_tx=false;
_init=false;
}
void Nrf24l::init()
// Initializes pins to communicate with the MiRF module
// Should be called in the early initializing phase at startup.
{
pinMode(cePin, OUTPUT);
pinMode(csnPin, OUTPUT);
ceLow();
csnHi();
// Initialize spi module
spi->begin();
}
// 上电
void Nrf24l::powerUpRx(){
PTX = 0;
ceLow();
// 使用 ‘0’-8 位CRC 校验模式，开启1:上电模式，开启接收模式
configRegister(CONFIG, mirf_CONFIG | ( (1<<PWR_UP) | (1<<PRIM_RX) ) );
ceHi();
// 清除之前的数据发送完成中断。不是关闭中断
// 当数据发送完成后产生中断。如果工作在自动应答模式下，
// 只有当接收到应答信号后此位置一。写‘1’清除中断。
// 清除之前的达到最多次重发中断。不是关闭中断
// 写‘1’清除中断。如果MAX_RT 中断产生则必须清除后系统才能进行通讯。
configRegister(STATUS,(1 << TX_DS) | (1 << MAX_RT));
}
boolean nRF24L01p::send(boolean _modeSend){
if(_prim_tx==false){
_txIndex=32;
return false;
}
if(_prim_rx==true){
ceLow();
primPTX();
}
csnLow();
if(_modeSend==false || (_prim_rx && _prim_tx)){
SPI.transfer(W_TX_PAYLOAD);
}else{
SPI.transfer(W_TX_PAYLOAD_NOACK);
}
for(int i=0;i<_txIndex;i++){
SPI.transfer(_txPayLoad[i]);
}
csnHigh();
cePulse();
unsigned long tmC1=micros();
while(1){
if(bitRead(getStatus(),5)){
//writeReg(STATUS,_status|(1<<6));
writeReg(STATUS,_status|(1<<5));
writeReg(STATUS,_status|(1<<4));
break;
}
if(bitRead(getStatus(),4)){
writeReg(STATUS,_status|(1<<4));
cePulse();
}
unsigned long tmC2=micros();
if(tmC2-tmC1>100L){ //was 250000L - lowered to make the timeout wait much shorter
//Serial.println("send(SLOW) returned false");
//Serial.println("connection lost ");
return false;
}
}
_txIndex=0;
if(_prim_rx==true){
primPRX();
ceHigh();
}
return true;
}
void send_rf(uint8_t * value)
// Sends a data package to the default address. Be sure to send the correct
// amount of bytes as configured as payload on the receiver.
{
uint8_t status;
status = getStatus();
while (PTX) {
status = getStatus();
if((status & ((1 << TX_DS) | (1 << MAX_RT)))){
PTX = 0;
break;
}
} // Wait until last paket is send
ceLow();
powerUpTx(); // Set to transmitter mode , Power up
csnLow();
uint8_t result = FLUSH_TX;
SSPSend(&result, 1);
csnHi();
uint8_t* rx = (uint8_t*)malloc(sizeof(uint8_t)*(payload+1));
rx[0] = W_TX_PAYLOAD;
uint8_t a;
for(a = 1; a < payload+1; a++){
rx[a] = value[a-1];
}
csnLow();
SSPSend(rx, payload+1);
free(rx);
csnHi();
ceHi(); // Start transmission
while(isSending());
}
void nRF24L01p::testLow(){
if(_init==true && _prim_rx==true)ceLow();
}
void nRF24L01p::cePulse(){
ceHigh();
delayMicroseconds(10);
ceLow();
}
void Nrf24l::powerDown(){
// 掉电模式
ceLow();
configRegister(CONFIG, mirf_CONFIG );
}
