//------------------------------------------------------------------------------
// void main (void)
//
// DESCRIPTION:
// Startup routine and main loop
//------------------------------------------------------------------------------
int main (void)
{
uint8_t cnt,i,length;
nrk_setup_ports();
nrk_setup_uart (UART_BAUDRATE_115K2);
printf( "Basic TX...\r\n" );
nrk_led_set(0);
nrk_led_set(1);
nrk_led_clr(2);
nrk_led_clr(3);
/*
while(1) {
for(i=0; i<40; i++ )
halWait(10000);
nrk_led_toggle(1);
}
*/
rfRxInfo.pPayload = rx_buf;
rfRxInfo.max_length = RF_MAX_PAYLOAD_SIZE;
nrk_int_enable();
rf_init (&rfRxInfo, 13, 0x2420, 0x1214);
cnt=0;
while(1){
nrk_led_set(GREEN_LED);
rfTxInfo.pPayload=tx_buf;
sprintf( tx_buf, "This is my string counter %d", cnt);
rfTxInfo.length= strlen(tx_buf) + 1;
rfTxInfo.destAddr = 0x1215;
rfTxInfo.cca = 0;
rfTxInfo.ackRequest = 0;
printf( "Sending\r\n" );
nrk_gpio_set(NRK_DEBUG_0);
if(rf_tx_packet(&rfTxInfo) != 1)
printf("--- RF_TX ERROR ---\r\n");
nrk_gpio_clr(NRK_DEBUG_0);
cnt++;
for(i=0; i<80; i++ )
halWait(10000);
nrk_led_clr(GREEN_LED);
for(i=0; i<20; i++ )
halWait(10000);
}
}
void sendAck(SPP_STRUCT* receivedPacket)
{
SIDLE();
// Debug:
halWait(1);
DMA_ABORT_CHANNEL(dmaNumberTx);
RFTXRXIF = 0;
STX();
RFIF &= ~IRQ_DONE;
while(RFTXRXIF == 0);
RFD = SPP_HEADER_AND_FOOTER_LENGTH + SPP_ACK_LENGTH;
RFTXRXIF = 0;
while(RFTXRXIF == 0);
RFTXRXIF = 0;
RFD = receivedPacket->srcAddress;
while(RFTXRXIF == 0);
RFTXRXIF = 0;
RFD = myAddress;
while(RFTXRXIF == 0);
RFTXRXIF = 0;
RFD = ACK;
while(!(RFIF & IRQ_DONE));
RFIF &= ~IRQ_DONE;
return;
}
//------------------------------------------------------------------------------
// void main (void)
//
// DESCRIPTION:
// Startup routine and main loop
//------------------------------------------------------------------------------
int main (void)
{
uint8_t i,length;
uint32_t cnt;
nrk_setup_ports();
nrk_setup_uart (UART_BAUDRATE_115K2);
printf( "Basic TX...\r\n" );
nrk_led_set(0);
nrk_led_set(1);
nrk_led_clr(2);
nrk_led_clr(3);
/*
while(1) {
for(i=0; i<40; i++ )
halWait(10000);
nrk_led_toggle(1);
}
*/
rfRxInfo.pPayload = rx_buf;
rfRxInfo.max_length = RF_MAX_PAYLOAD_SIZE;
nrk_int_enable();
rf_init (&rfRxInfo, 26, 0x2420, 0x1214);
cnt=0;
while(1){
DPDS1 |= 0x3;
DDRG |= 0x1;
PORTG |= 0x1;
DDRE|=0xE0;
PORTE|=0xE0;
rfTxInfo.pPayload=tx_buf;
sprintf( tx_buf, "%lu", cnt);
rfTxInfo.length= strlen(tx_buf) + 1;
rfTxInfo.destAddr = 0x1215;
rfTxInfo.cca = 0;
rfTxInfo.ackRequest = 0;
printf( "Sending\r\n" );
// nrk_gpio_set(NRK_DEBUG_0);
if(rf_tx_packet(&rfTxInfo) != 1)
printf("--- RF_TX ERROR ---\r\n");
// nrk_gpio_clr(NRK_DEBUG_0);
cnt++;
for(i=0; i<10; i++ )
halWait(10000);
nrk_led_toggle(RED_LED);
}
}
//------------------------------------------------------------------------------
// void main (void)
//
// DESCRIPTION:
// Startup routine and main loop
//------------------------------------------------------------------------------
int main (void)
{
uint8_t cnt,i,length;
nrk_setup_ports();
nrk_setup_uart (UART_BAUDRATE_115K2);
printf( "Basic TX...\r\n" );
nrk_led_clr(0);
nrk_led_clr(1);
nrk_led_clr(2);
nrk_led_clr(3);
nrk_gpio_set(NRK_DEBUG_0);
nrk_gpio_set(NRK_DEBUG_1);
rfRxInfo.pPayload = rx_buf;
rfRxInfo.max_length = RF_MAX_PAYLOAD_SIZE;
rf_init (&rfRxInfo, 25, 0x2420, 0x1215);
cnt=0;
while(1)
{
nrk_led_set(1);
rfTxInfo.pPayload=tx_buf;
sprintf( tx_buf, "This is my string counter %d", cnt);
rfTxInfo.length=strlen(&tx_buf);
rfTxInfo.cca=0;
nrk_gpio_set(NRK_DEBUG_0);
printf( "Sending\r\n" );
rf_tx_packet (&rfTxInfo);
nrk_gpio_clr(NRK_DEBUG_0);
cnt++;
for(i=0; i<10; i++ )
halWait(10000);
nrk_led_clr(1);
for(i=0; i<10; i++ )
halWait(10000);
}
}
/******************************************************************************
* @fn updateCounter
*
* @brief
* Function for updating counting speed for binary counter
*
* Parameters:
*
* @param INT8 delay
* New counting delay
*
* @return void
*
******************************************************************************/
void updateCounter(INT8 delay)
{
static UINT8 counter = 0;
UINT16 i = 0;
i = ((delay > 0) ? 0x7F - delay : 0x7F);
halWait( i );
counter++;
SET_LED_MASK( (BYTE)counter );
}
uint8_t rf_tx_packet(RF_TX_INFO *pRTI)
{
uint16_t frameControlField;
uint8_t packetLength;
uint8_t success, i;
// Note: checksum is automatic in HW
LPC_GPIO1->FIOPIN ^= 1<<31;
packetLength = pRTI->length + RF_PACKET_OVERHEAD_SIZE;
frameControlField = RF_FCF_NOACK;
if(auto_ack_enable || pRTI->ackRequest) frameControlField |= RF_ACK_BM;
if(security_enable) frameControlField |= 0x0000; // TODO: Paul Gurniak, add security
mrf_write_long(TXNFIFO, RF_PACKET_OVERHEAD_SIZE); // No checksum, overhead is all header
mrf_write_long(TXNFIFO+1, packetLength);
// Write header bytes
mrf_write_long(TXNFIFO+2, frameControlField & 0xFF);
mrf_write_long(TXNFIFO+3, frameControlField >> 8);
mrf_write_long(TXNFIFO+4, rfSettings.txSeqNumber);
mrf_write_long(TXNFIFO+5, rfSettings.panId & 0xFF);
mrf_write_long(TXNFIFO+6, rfSettings.panId >> 8);
mrf_write_long(TXNFIFO+7, pRTI->destAddr & 0xFF);
mrf_write_long(TXNFIFO+8, pRTI->destAddr >> 8);
mrf_write_long(TXNFIFO+9, rfSettings.myAddr & 0xFF);
mrf_write_long(TXNFIFO+10, rfSettings.myAddr >> 8);
// Write payload
for(i = 0; i < pRTI->length; i++) {
mrf_write_long(TXNFIFO+11+i, pRTI->pPayload[i]); // pPayload is the user defined part of data packet right ?
}
if(pRTI->cca) {
uint8_t cnt = 0;
if(!rfSettings.receiveOn) {
rf_rx_on();
}
while(!rf_rx_check_cca()) {
cnt++;
if(cnt > 100) {
return FALSE;
}
halWait(100);
}
}
tx_status_ready = 0;
mrf_write_short(TXNCON, auto_ack_enable ? 0x05 : 0x01); // Send contents of TXNFIFO as packet
//putchar(auto_ack_enable);
// Wait for Tx to finish
while(!tx_status_ready);
wait_ms(50);
success = 1;
//putchar(auto_ack_enable);
if(auto_ack_enable || pRTI->ackRequest) {
uint8_t k = mrf_read_short(TXSTAT);
success = !(k & 0x01);
//printf("ACK%c",k);
}
//printf("tx_pkt success = %d\r\n",success);
// Transmission works fine : Checked by Madhur, success = 1only when the receiver is enabled
// Increment sequence, return result
rfSettings.txSeqNumber++;
return success;
}
//-------------------------------------------------------------------------------------------------------
// BYTE rf_tx_packet(RF_TX_INFO *pRTI)
//
// DESCRIPTION:
// Transmits a packet using the IEEE 802.15.4 MAC data packet format with short addresses. CCA is
// measured only once before backet transmission (not compliant with 802.15.4 CSMA-CA).
// The function returns:
// - When pRTI->ackRequest is FALSE: After the transmission has begun (SFD gone high)
// - When pRTI->ackRequest is TRUE: After the acknowledgment has been received/declared missing.
// The acknowledgment is received through the FIFOP interrupt.
//
// ARGUMENTS:
// RF_TX_INFO *pRTI
// The transmission structure, which contains all relevant info about the packet.
//
// RETURN VALUE:
// uint8_t
// Successful transmission (acknowledgment received)
//-------------------------------------------------------------------------------------------------------
uint8_t rf_tx_packet(RF_TX_INFO *pRTI)
{
uint16_t frameControlField;
uint8_t packetLength, length;
uint8_t success;
uint8_t spiStatusByte;
uint8_t checksum,i;
#ifdef RADIO_PRIORITY_CEILING
nrk_sem_pend(radio_sem);
#endif
#ifdef CC2420_OSC_OPT
FASTSPI_STROBE(CC2420_SXOSCON);
nrk_spin_wait_us(OSC_STARTUP_DELAY);
#endif
if(security_enable)
FASTSPI_STROBE(CC2420_STXENC);
checksum=0;
for(i=0; i<pRTI->length; i++ )
{
// lets do our own payload checksum because we don't trust the CRC
checksum+=pRTI->pPayload[i];
}
// Write the packet to the TX FIFO (the FCS is appended automatically when AUTOCRC is enabled)
// These are only the MAC AGNOSTIC parameters...
// Slots for example are at a slighly higher later since they assume TDMA
packetLength = pRTI->length + RF_PACKET_OVERHEAD_SIZE + CHECKSUM_OVERHEAD;
if(security_enable) packetLength+=4; // for CTR counter
// XXX 2 below are hacks...
FASTSPI_STROBE(CC2420_SFLUSHRX);
FASTSPI_STROBE(CC2420_SFLUSHRX);
// Wait until the transceiver is idle
while (FIFOP_IS_1 || SFD_IS_1);
// Turn off global interrupts to avoid interference on the SPI interface
DISABLE_GLOBAL_INT();
// Flush the TX FIFO just in case...
FASTSPI_STROBE(CC2420_SFLUSHTX);
FASTSPI_STROBE(CC2420_SFLUSHTX);
/*
// Turn on RX if necessary
if (!rfSettings.receiveOn) {
FASTSPI_STROBE(CC2420_SRXON);
}
// Wait for the RSSI value to become valid
do {
FASTSPI_UPD_STATUS(spiStatusByte);
} while (!(spiStatusByte & BM(CC2420_RSSI_VALID)));
// TX begins after the CCA check has passed
do {
FASTSPI_STROBE(CC2420_STXONCCA);
FASTSPI_UPD_STATUS(spiStatusByte);
halWait(100);
} while (!(spiStatusByte & BM(CC2420_TX_ACTIVE)));
*/
FASTSPI_WRITE_FIFO((uint8_t*)&packetLength, 1); // Packet length
frameControlField = RF_FCF_NOACK; // default
if(auto_ack_enable) frameControlField |= RF_ACK_BM;
if(security_enable) frameControlField |= RF_SEC_BM;
FASTSPI_WRITE_FIFO((uint8_t*) &frameControlField, 2); // Frame control field
FASTSPI_WRITE_FIFO((uint8_t*) &rfSettings.txSeqNumber, 1); // Sequence number
FASTSPI_WRITE_FIFO((uint8_t*) &rfSettings.panId, 2); // Dest. PAN ID
FASTSPI_WRITE_FIFO((uint8_t*) &pRTI->destAddr, 2); // Dest. address
FASTSPI_WRITE_FIFO((uint8_t*) &rfSettings.myAddr, 2); // Source address
if(security_enable)
FASTSPI_WRITE_FIFO((uint8_t*) &tx_ctr, 4); // CTR counter
FASTSPI_WRITE_FIFO((uint8_t*) pRTI->pPayload, pRTI->length); // Payload
FASTSPI_WRITE_FIFO((uint8_t*) &checksum, 1); // Checksum
if (pRTI->cca == TRUE)
{
uint8_t cnt;
if (!rfSettings.receiveOn)
{
FASTSPI_STROBE (CC2420_SRXON);
}
// Wait for the RSSI value to become valid
do
{
FASTSPI_UPD_STATUS (spiStatusByte);
}
while (!(spiStatusByte & BM (CC2420_RSSI_VALID)));
// TX begins after the CCA check has passed
cnt = 0;
do
{
FASTSPI_STROBE (CC2420_STXONCCA);
FASTSPI_UPD_STATUS (spiStatusByte);
cnt++;
if (cnt > 100)
{
ENABLE_GLOBAL_INT ();
nrk_sem_post(radio_sem);
return FALSE;
}
halWait (100);
}
while (!(spiStatusByte & BM (CC2420_TX_ACTIVE)));
}
else
FASTSPI_STROBE (CC2420_STXON);
ENABLE_GLOBAL_INT();
// Wait for the transmission to begin before exiting (makes sure that this function cannot be called
// a second time, and thereby cancelling the first transmission (observe the FIFOP + SFD test above).
while (!SFD_IS_1);
success = TRUE;
// Turn interrupts back on
// ENABLE_GLOBAL_INT();
while (SFD_IS_1); // wait for packet to finish
// Wait for the acknowledge to be received, if any
if (auto_ack_enable)
{
// rfSettings.ackReceived = FALSE;
// Wait for the SFD to go low again
// while (SFD_IS_1);
// We'll enter RX automatically, so just wait until we can be sure that the
// ack reception should have finished
// The timeout consists of a 12-symbol turnaround time, the ack packet duration,
// and a small margin
halWait((12 * RF_SYMBOL_DURATION) + (RF_ACK_DURATION) + (2 * RF_SYMBOL_DURATION) + 100);
if(FIFO_IS_1)
{
FASTSPI_READ_FIFO_BYTE(length);
length &= RF_LENGTH_MASK; // Ignore MSB
success = TRUE;
}
else
{
FASTSPI_STROBE(CC2420_SFLUSHRX);
FASTSPI_STROBE(CC2420_SFLUSHRX);
success = FALSE;
}
}
// Turn off the receiver if it should not continue to be enabled
DISABLE_GLOBAL_INT();
//FASTSPI_STROBE(CC2420_SFLUSHRX);
//FASTSPI_STROBE(CC2420_SFLUSHRX);
//FASTSPI_STROBE(CC2420_SFLUSHTX);
//FASTSPI_STROBE(CC2420_SFLUSHTX);
#ifdef CC2420_OSC_OPT
FASTSPI_STROBE(CC2420_SXOSCOFF);
#endif
FASTSPI_STROBE(CC2420_SRFOFF); // shut off radio
ENABLE_GLOBAL_INT();
// agr XXX hack to test time issue
//rf_rx_on();
// Increment the sequence number, and return the result
rfSettings.txSeqNumber++;
// while (SFD_IS_1);
#ifdef RADIO_PRIORITY_CEILING
nrk_sem_post(radio_sem);
#endif
return success;
}
/**************************************************************************
This function is the same as normal TX, only it waits until the last
second to send the duty out with the high speed timer. And by duty, I mean
the packet BIATCH...
**************************************************************************/
uint8_t rf_tx_tdma_packet(RF_TX_INFO *pRTI, uint16_t slot_start_time, uint16_t tx_guard_time)
{
uint16_t frameControlField;
uint8_t packetLength;
uint8_t success;
uint8_t spiStatusByte;
uint8_t checksum,i;
uint8_t timestamp;
#ifdef RADIO_PRIORITY_CEILING
nrk_sem_pend (radio_sem);
#endif
timestamp=_nrk_os_timer_get();
// XXX 2 below are hacks...
#ifdef CC2420_OSC_OPT
FASTSPI_STROBE(CC2420_SXOSCON);
nrk_spin_wait_us(OSC_STARTUP_DELAY);
#endif
FASTSPI_STROBE(CC2420_SFLUSHRX);
FASTSPI_STROBE(CC2420_SFLUSHRX);
// Wait until the transceiver is idle
while (FIFOP_IS_1 || SFD_IS_1);
// Turn off global interrupts to avoid interference on the SPI interface
DISABLE_GLOBAL_INT();
// Flush the TX FIFO just in case...
FASTSPI_STROBE(CC2420_SFLUSHTX);
FASTSPI_STROBE(CC2420_SFLUSHTX);
checksum=0;
for(i=0; i<pRTI->length; i++ )
{
// lets do our own payload checksum because we don't trust the CRC
checksum+=pRTI->pPayload[i];
}
packetLength = pRTI->length + RF_PACKET_OVERHEAD_SIZE + CHECKSUM_OVERHEAD;
//nrk_set_led(3);
//do { } while(_nrk_get_high_speed_timer()<(tx_guard_time));
// Write the packet to the TX FIFO (the FCS is appended automatically when AUTOCRC is enabled)
// These are only the MAC AGNOSTIC parameters...
// Slots for example are at a higher layer since they assume TDMA
FASTSPI_WRITE_FIFO((uint8_t*)&packetLength, 1); // Packet length
frameControlField = pRTI->ackRequest ? RF_FCF_ACK : RF_FCF_NOACK;
FASTSPI_WRITE_FIFO((uint8_t*) &frameControlField, 2); // Frame control field
FASTSPI_WRITE_FIFO((uint8_t*) &rfSettings.txSeqNumber, 1); // Sequence number
FASTSPI_WRITE_FIFO((uint8_t*) &rfSettings.panId, 2); // Dest. PAN ID
FASTSPI_WRITE_FIFO((uint8_t*) &pRTI->destAddr, 2); // Dest. address
FASTSPI_WRITE_FIFO((uint8_t*) &rfSettings.myAddr, 2); // Source address
nrk_high_speed_timer_wait(slot_start_time,tx_guard_time);
//nrk_clr_led(3);
/*
DISABLE_GLOBAL_INT();
nrk_set_led(3);
last=0;
do {
if(last==_nrk_get_high_speed_timer())
{
//while(1)
//printf( "TX ERROR %d vs %d\r\n",_nrk_get_high_speed_timer(),tx_guard_time );
break;
}
last=_nrk_get_high_speed_timer();
}
while((volatile)last<(tx_guard_time));
ENABLE_GLOBAL_INT();
nrk_clr_led(3);
*/
/*
// Turn on RX if necessary
if (!rfSettings.receiveOn) {
FASTSPI_STROBE(CC2420_SRXON);
}
// Wait for the RSSI value to become valid
do {
FASTSPI_UPD_STATUS(spiStatusByte);
} while (!(spiStatusByte & BM(CC2420_RSSI_VALID)));
// TX begins after the CCA check has passed
do {
FASTSPI_STROBE(CC2420_STXONCCA);
FASTSPI_UPD_STATUS(spiStatusByte);
halWait(100);
} while (!(spiStatusByte & BM(CC2420_TX_ACTIVE)));
*/
if (pRTI->cca == TRUE)
{
uint8_t cnt;
if (!rfSettings.receiveOn)
{
FASTSPI_STROBE (CC2420_SRXON);
}
// Wait for the RSSI value to become valid
do
{
FASTSPI_UPD_STATUS (spiStatusByte);
}
while (!(spiStatusByte & BM (CC2420_RSSI_VALID)));
// TX begins after the CCA check has passed
cnt = 0;
do
{
FASTSPI_STROBE (CC2420_STXONCCA);
FASTSPI_UPD_STATUS (spiStatusByte);
cnt++;
if (cnt > 100)
{
ENABLE_GLOBAL_INT ();
nrk_sem_post(radio_sem);
return FALSE;
}
halWait (100);
}
while (!(spiStatusByte & BM (CC2420_TX_ACTIVE)));
}
else
FASTSPI_STROBE (CC2420_STXON);
//nrk_gpio_set(DEBUG_0);
// Fill in the rest of the packet now
FASTSPI_WRITE_FIFO((uint8_t*) pRTI->pPayload, pRTI->length); // Payload
FASTSPI_WRITE_FIFO((uint8_t*) &checksum, 1); // Checksum
//nrk_spin_wait_us(200);
// FASTSPI_STROBE(CC2420_STXON);
// Wait for the transmission to begin before exiting (makes sure that this function cannot be called
// a second time, and thereby cancelling the first transmission (observe the FIFOP + SFD test above).
while (!SFD_IS_1);
success = TRUE;
// Turn interrupts back on
// ENABLE_GLOBAL_INT();
// Wait for the acknowledge to be received, if any
/*if (pRTI->ackRequest) {
rfSettings.ackReceived = FALSE;
// Wait for the SFD to go low again
while (SFD_IS_1);
// We'll enter RX automatically, so just wait until we can be sure that the ack reception should have finished
// The timeout consists of a 12-symbol turnaround time, the ack packet duration, and a small margin
halWait((12 * RF_SYMBOL_DURATION) + (RF_ACK_DURATION) + (2 * RF_SYMBOL_DURATION) + 100);
// If an acknowledgment has been received (by the FIFOP interrupt), the ackReceived flag should be set
success = rfSettings.ackReceived;
}*/
// Turn off the receiver if it should not continue to be enabled
DISABLE_GLOBAL_INT();
// XXX hack, temp out
//if (!rfSettings.receiveOn) { while (SFD_IS_1); /*FASTSPI_STROBE(CC2420_SRFOFF);*/ }
// while (SFD_IS_1);
while (SFD_IS_1); // wait for packet to finish
FASTSPI_STROBE(CC2420_SFLUSHRX);
FASTSPI_STROBE(CC2420_SFLUSHRX);
FASTSPI_STROBE(CC2420_SFLUSHTX);
FASTSPI_STROBE(CC2420_SFLUSHTX);
#ifdef CC2420_OSC_OPT
FASTSPI_STROBE(CC2420_SXOSCOFF);
#endif
FASTSPI_STROBE(CC2420_SRFOFF); // shut off radio
ENABLE_GLOBAL_INT();
// Increment the sequence number, and return the result
rfSettings.txSeqNumber++;
// while (SFD_IS_1);
#ifdef RADIO_PRIORITY_CEILING
nrk_sem_post(radio_sem);
#endif
return success;
}
//-------------------------------------------------------------------------------------------------------
// void rf_init(RF_RX_INFO *pRRI, uint8_t channel, WORD panId, WORD myAddr)
//
// DESCRIPTION:
// Initializes CC2420 for radio communication via the basic RF library functions. Turns on the
// voltage regulator, resets the CC2420, turns on the crystal oscillator, writes all necessary
// registers and protocol addresses (for automatic address recognition). Note that the crystal
// oscillator will remain on (forever).
//
// ARGUMENTS:
// RF_RX_INFO *pRRI
// A pointer the RF_RX_INFO data structure to be used during the first packet reception.
// The structure can be switched upon packet reception.
// uint8_t channel
// The RF channel to be used (11 = 2405 MHz to 26 = 2480 MHz)
// WORD panId
// The personal area network identification number
// WORD myAddr
// The 16-bit short address which is used by this node. Must together with the PAN ID form a
// unique 32-bit identifier to avoid addressing conflicts. Normally, in a 802.15.4 network, the
// short address will be given to associated nodes by the PAN coordinator.
//-------------------------------------------------------------------------------------------------------
void rf_init(RF_RX_INFO *pRRI, uint8_t channel, uint16_t panId, uint16_t myAddr)
{
uint8_t n;
#ifdef RADIO_PRIORITY_CEILING
int8_t v;
radio_sem = nrk_sem_create(1,RADIO_PRIORITY_CEILING);
if (radio_sem == NULL)
nrk_kernel_error_add (NRK_SEMAPHORE_CREATE_ERROR, nrk_get_pid ());
v = nrk_sem_pend (radio_sem);
if (v == NRK_ERROR)
{
nrk_kprintf (PSTR ("CC2420 ERROR: Access to semaphore failed\r\n"));
}
#endif
// Make sure that the voltage regulator is on, and that the reset pin is inactive
SET_VREG_ACTIVE();
halWait(1000);
SET_RESET_ACTIVE();
halWait(1);
SET_RESET_INACTIVE();
halWait(100);
// Initialize the FIFOP external interrupt
//FIFOP_INT_INIT();
//ENABLE_FIFOP_INT();
// Turn off all interrupts while we're accessing the CC2420 registers
DISABLE_GLOBAL_INT();
FASTSPI_STROBE(CC2420_SXOSCON);
mdmctrl0=0x02E2;
FASTSPI_SETREG(CC2420_MDMCTRL0, mdmctrl0); // Std Preamble, CRC, no auto ack, no hw addr decoding
//FASTSPI_SETREG(CC2420_MDMCTRL0, 0x0AF2); // Turn on automatic packet acknowledgment
// Turn on hw addre decoding
FASTSPI_SETREG(CC2420_MDMCTRL1, 0x0500); // Set the correlation threshold = 20
FASTSPI_SETREG(CC2420_IOCFG0, 0x007F); // Set the FIFOP threshold to maximum
FASTSPI_SETREG(CC2420_SECCTRL0, 0x01C4); // Turn off "Security"
FASTSPI_SETREG(CC2420_RXCTRL1, 0x1A56); // All default except
// reference bias current to RX
// bandpass filter is set to 3uA
/*
// FIXME: remove later for auto ack
myAddr=MY_MAC;
panId=0x02;
FASTSPI_SETREG(CC2420_MDMCTRL0, 0x0AF2); // Turn on automatic packet acknowledgment
// FASTSPI_SETREG(CC2420_MDMCTRL0, 0x0AE2); // Turn on automatic packet acknowledgment
nrk_spin_wait_us(500);
nrk_spin_wait_us(500);
FASTSPI_WRITE_RAM_LE(&myAddr, CC2420RAM_SHORTADDR, 2, n);
nrk_spin_wait_us(500);
FASTSPI_WRITE_RAM_LE(&panId, CC2420RAM_PANID, 2, n);
nrk_spin_wait_us(500);
printf( "myAddr=%d\r\n",myAddr );
*/
nrk_spin_wait_us(500);
FASTSPI_WRITE_RAM_LE(&panId, CC2420RAM_PANID, 2, n);
nrk_spin_wait_us(500);
ENABLE_GLOBAL_INT();
// Set the RF channel
halRfSetChannel(channel);
// Turn interrupts back on
ENABLE_GLOBAL_INT();
// Set the protocol configuration
rfSettings.pRxInfo = pRRI;
rfSettings.panId = panId;
rfSettings.myAddr = myAddr;
rfSettings.txSeqNumber = 0;
rfSettings.receiveOn = FALSE;
// Wait for the crystal oscillator to become stable
halRfWaitForCrystalOscillator();
// Write the short address and the PAN ID to the CC2420 RAM (requires that the XOSC is on and stable)
// DISABLE_GLOBAL_INT();
// FASTSPI_WRITE_RAM_LE(&myAddr, CC2420RAM_SHORTADDR, 2, n);
// FASTSPI_WRITE_RAM_LE(&panId, CC2420RAM_PANID, 2, n);
// ENABLE_GLOBAL_INT();
#ifdef RADIO_PRIORITY_CEILING
v = nrk_sem_post (radio_sem);
if (v == NRK_ERROR)
{
nrk_kprintf (PSTR ("CC2420 ERROR: Release of semaphore failed\r\n"));
_nrk_errno_set (2);
}
#endif
auto_ack_enable=0;
security_enable=0;
last_pkt_encrypted=0;
} // rf_init()
//------------------------------------------------------------------------------
// void main (void)
//
// DESCRIPTION:
// Startup routine and main loop
//------------------------------------------------------------------------------
int main (void)
{
uint8_t cnt,i,length,n;
nrk_setup_ports();
nrk_setup_uart (UART_BAUDRATE_115K2);
printf( "Receiver\r\n" );
nrk_led_clr(0);
nrk_led_clr(1);
nrk_led_clr(2);
nrk_led_clr(3);
rfRxInfo.pPayload = rx_buf;
rfRxInfo.max_length = RF_MAX_PAYLOAD_SIZE;
rfRxInfo.ackRequest= 0;
nrk_int_enable();
rf_init (&rfRxInfo, 13, 0x2420, 0x1215);
printf( "Waiting for packet...\r\n" );
nrk_led_set(ORANGE_LED);
while(1)
{
nrk_led_set(BLUE_LED);
rf_polling_rx_on();
while ((n = rf_rx_check_sfd()) == 0)
continue;
if (n != 0)
{
nrk_led_toggle(ORANGE_LED);
n = 0;
// Packet on its way
cnt=0;
while ((n = rf_polling_rx_packet ()) == 0)
{
nrk_led_toggle(GREEN_LED);
if (cnt > 50)
{
//printf( "PKT Timeout\r\n" );
break; // huge timeout as failsafe
}
halWait(10000);
cnt++;
}
}
nrk_led_clr(BLUE_LED);
if (n == 1)
{
nrk_led_clr(RED_LED);
// nrk_led_toggle(BLUE_LED);
// CRC and checksum passed
// printf("packet received\r\n");
// printf("SEQNUM: %d SRCADDR: 0x%x SNR: %d\r\n[",rfRxInfo.seqNumber, rfRxInfo.srcAddr, rfRxInfo.rssi);
// printf("\r\n%d, ",rfRxInfo.seqNumber);
for(i=0; i<rfRxInfo.length; i++ )
// printf( "%c", rfRxInfo.pPayload[i]);
putchar(rfRxInfo.pPayload[i]);
// printf( "]\r\n\r\n" );
// printf("\r\nR%d = %d",rfRxInfo.seqNumber,rfRxInfo.length);
}
else if(n != 0)
{
printf( "CRC failed!\r\n" ); nrk_led_set(RED_LED);
}
}
}
//-----------------------------------------------------------------------------
// See cul.h for a description of this function.
//-----------------------------------------------------------------------------
BYTE sppSend(SPP_STRUCT* pPacketPointer){
BYTE res = TRUE;
// Checking that length is not too long
if (pPacketPointer->payloadLength > SPP_MAX_PAYLOAD_LENGTH)
{
res = TOO_LONG;
sppTxStatus = TX_IDLE;
}
// Flipping the sequence bit, writing total packet length and address if the transfer is not a retransmission.
// If it is a retransmission, the fields are correct
if(!(pPacketPointer->flags & RETRANSMISSION))
{
pPacketPointer->flags ^= SEQUENCE_BIT;
pPacketPointer->payloadLength += SPP_HEADER_AND_FOOTER_LENGTH;
pPacketPointer->srcAddress = myAddress;
}
// Setting up the DMA
DMA_ABORT_CHANNEL(dmaNumberTx);
SET_DMA_SOURCE(dmaTx,pPacketPointer);
// Proceed if the packet length is OK.
if (res == TRUE)
{
// Clearing RF interrupt flags and enabling RF interrupts.
RFIF &= ~IRQ_DONE;
RFIM &= ~IRQ_SFD;
INT_SETFLAG(INUM_RF, INT_CLR);
#ifdef CCA_ENABLE
if(!CCA)
{
SRX();
// Turning on Rx and waiting to make the RSSI value become valid.
halWait(1);
}
if(CCA)
#endif
{ // Setting up radio
DMA_ABORT_CHANNEL(dmaNumberRx);
SIDLE();
RFTXRXIF = 0;
INT_GLOBAL_ENABLE(FALSE);
DMA_ARM_CHANNEL(dmaNumberTx);
STX();
INT_GLOBAL_ENABLE(TRUE);
sppTxStatus = TX_IN_PROGRESS;
if(pPacketPointer->flags & DO_ACK)
{
pAckData = pPacketPointer;
waitForAck();
}
else
{
pAckData = NULL;
}
RFIM |= IRQ_DONE;
}
#ifdef CCA_ENABLE
// The "air" is busy
else
{
res = CHANNEL_BUSY;
RFIM &= ~IRQ_DONE;
// De-flipping the sequence bit.
if(!(pPacketPointer->flags & RETRANSMISSION))
{
pPacketPointer->flags ^= SEQUENCE_BIT;
}
}
#endif
}
return res;
} // ends sppSend
void stop_watch_main(void){
#else
void main(void){
#endif
STATE state = START_STATE;
initStopWatch();
TIMER3_RUN(FALSE);
ClearScreen();
Print(0,5,"--STOP WATCH--",1);
Rectangle(2 , 4 , 108 , 7);
while(!stopApplication()){
switch (state)
{
case START_STATE:
{
t.h = t.m = t.s = 0;
overflow = 0;
printTime();
if(LanguageSel == 1)
{
Print6(2,10," OK for START ",1);
}
else
{
Print(2,8,"按OK键开始:",1);
}
if(ScanKey() == K_OK)
{
while(ScanKey() != 0xff);
halWait(5);
TIMER3_RUN(TRUE);
state = RUN_STATE;
if(LanguageSel == 1)
{
Print6(2,10," OK for STOP ",1);
}
else
{
Print(2,8,"按OK键停止:",1);
}
}
}break;
case RUN_STATE:
{
INT_GLOBAL_ENABLE(INT_OFF);
if(overflow > 0 && overflow < 0x09)
{
GLED = LED_ON;
}
else if(overflow > (UINT16)1000)
{
//overflow = 0;
overflow -= 1000;
incrementTime();
printTime();
}
else
{
GLED = LED_OFF;
}
if(ScanKey() == K_OK)
{
while(ScanKey() != 0xff);
halWait(5);
TIMER3_RUN(FALSE);
state = STOP_STATE;
GLED = LED_OFF;
}
INT_GLOBAL_ENABLE(INT_ON);
}break;
case STOP_STATE:
{
printTime();
if(LanguageSel == 1)
{
Print6(2,10," Total time is:",1);
}
else
{
Print(2,8,"总计时间为:",1);
}
if(ScanKey() == K_OK)
{
while(ScanKey() != 0xff);
halWait(5);
state = START_STATE;
}
}break;
default:
break;
}
}
while(ScanKey() != 0xff);
halWait(5);
INT_GLOBAL_ENABLE(INT_OFF);
return;
}
void flash_main(void){
#else
void main(void){
#endif
BYTE buffer[30];
char inputBuffer[STRING_LENGTH];
INT8 pointer = 0;
BOOL stop = FALSE;
BOOL write = FALSE;
char c;
char *menuText[] = {(char*)" CPU write?", (char*)" DMA write?"};
BYTE command;
BOOL unUsed;
initFlash();
// Clearing buffers
memset(buffer,0,sizeof(buffer));
memset(inputBuffer,0,sizeof(inputBuffer));
// Setting up UART
UART_SETUP(0,57600,HIGH_STOP);
UTX0IF = 1; // Set UART 0 TX interrupt flag
while(getJoystickDirection() != CENTRED);
//Displaying the stored flash message.
lcdUpdateLine(LINE1,(char*)"Last written:");
if((unUsed = flashUnused((BYTE*)testData, STRING_LENGTH)))
{
lcdUpdateLine(LINE2,(char*)"Unused");
}
else
{
scrollText((char*) testData, STRING_LENGTH);
}
while(getJoystickDirection() != CENTRED);
while(getJoystickDirection() == CENTRED);
while(getJoystickDirection() != CENTRED);
// User decides whether to use CPU or DMA to write flash or to abort.
command = lcdMenu(menuText,2);
if(command == ABORT_MENU)
{
return;
}
// Uart communication
lcdUpdate((char*)"Enter UART", (char*)"data");
printf((char*)"\n\nFlash Programming\n");
printf((char*)"Press a key\n\n");
uartGetkey (); // wait for a key to be pressed or the application to be ended
if (stopApplication() ) return;
else
{
inputBuffer[0] = U0DBUF;
halWait(5);
USART0_FLUSH();
inputBuffer[1] = U0DBUF;
}
// Printing the previously written data
printf((char*)"\nLast written:\n");
if(unUsed)
{
printf((char*)"Unused\n");
}
else
{
printf((char*)"%s\n",&testData);
}
//Aquiring new data:
printf((char*)"\n\nType data to be written.\nWill be printed to the LCD next time.");
printf((char*)"\n(ENTER: store in flash, ESC: abort)\n\n");
memset(inputBuffer,0,STRING_LENGTH);
while(!stop)
{
c = getkey();
U0DBUF = c;
switch (c){
case ENTER:
inputBuffer[pointer] = 0;
printf((char*)"\n\nTo write: %s\nENTER if OK.\n",inputBuffer);
if(getkey() == ENTER)
{
// Write data to flash;
stop = TRUE;
write = TRUE;
}
else
{
// Reaquire data.
printf((char*)"\nEnter text:\n");
pointer = 0;
}
break;
case BACK_SPACE:
// Erasing the last typed data.
if (pointer > 0)
{
pointer--;
inputBuffer[pointer] = ' ';
}
break;
case ESC:
// Abort Flash write.
stop = TRUE;
write = FALSE;
break;
default:
// Add typed data to buffer.
if (pointer < STRING_LENGTH-1)
{
inputBuffer[pointer] = c;
pointer++;
}
break;
}
}
INT_GLOBAL_ENABLE(INT_OFF);
// Updating the flash if asked to.
if(write == TRUE)
{
if(command == 0)
{
halFlashWritePage((BYTE*) &inputBuffer, buffer, PAGE_NUMBER);
}
else
{
writeFlashUsingDMA((BYTE*) &inputBuffer, STRING_LENGTH, PAGE_ADDRESS, TRUE);
}
printf((char*)"\nUpdated:");
printf((char*)" %s\n",(char __code*) (PAGE_NUMBER << 10));
lcdUpdateLine(LINE1,(char*)"Updated");
}
else
{
printf((char*)"\nNot updated\n");
lcdUpdateLine(LINE1,(char*)"Not updated");
}
lcdUpdateLine(LINE2,(char*)"LEFT to continue");
// Done
haltApplicationWithLED();
return;
}
/******************************************************************************
* @fn writeFlashUsingDMA
*
* @brief
* Writes data to flash using DMA. Erases the page in advance if told to.
*
* Parameters:
*
* @param BYTE* pSrcAddr
* The start of the data to be written to flash.
*
* INT16 length
* The number of bytes to be written to flash.
*
* WORD flashAddress
* The address in flash the data is to be written to.
*
* BOOL erase
* Indicating whether the flash is to be erased or not.
*
* @return void
*
******************************************************************************/
void writeFlashUsingDMA(BYTE* pSrcAddr, INT16 length, WORD flashAddress, BOOL erase)
{
BYTE buffer[10];
INT_GLOBAL_ENABLE(INT_OFF);
// Setting up the flash address,
// erasing the page if required.
SET_WORD(FADDRH, FADDRL, (int)(flashAddress >> 1));
if(erase == TRUE)
{
halFlashErasePage(buffer, PAGE_NUMBER);
}
halWait(0xFF);
// Making sure a multiplum of 4 bytes is transferred.
while(length & 0x0003){
length++;
}
SET_WORD(dmaChannel.SRCADDRH, dmaChannel.SRCADDRL, pSrcAddr); // The start address of the segment
SET_WORD(dmaChannel.DESTADDRH, dmaChannel.DESTADDRL, &X_FWDATA); // Input of the AES module
SET_WORD(dmaChannel.LENH, dmaChannel.LENL, length); // Setting the length of the transfer (bytes)
dmaChannel.VLEN = VLEN_USE_LEN; // Using the length field
dmaChannel.PRIORITY = PRI_LOW; // High priority
dmaChannel.M8 = M8_USE_8_BITS; // Transferring all 8 bits in each byte.
dmaChannel.IRQMASK = FALSE; // The DMA complete interrupt flag is set at completion.
dmaChannel.DESTINC = DESTINC_0; // The destination address is constant
dmaChannel.SRCINC = SRCINC_1; // The address for data fetch is inremented by 1 byte
dmaChannel.TRIG = DMATRIG_FLASH; // Setting the FLASH module to generate the DMA trigger
dmaChannel.TMODE = TMODE_SINGLE; // A single byte is transferred each time.
dmaChannel.WORDSIZE = WORDSIZE_BYTE; // Set to count bytes.
// Setting up the DMA.
// Clearing all DMA complete flags and arming the channel.
DMA_SET_ADDR_DESC0(&dmaChannel);
DMA_ABORT_CHANNEL(0);
DMAIRQ &= ~DMA_CHANNEL_0;
DMA_ARM_CHANNEL(0);
asm("NOP");
// Starting to write
FLASH_CONFIG(WRITE);
// Waiting for the DMA to finish.
while(!(DMAIRQ & DMA_CHANNEL_0));
DMAIRQ &= ~DMA_CHANNEL_0;
return;
}
