Shailesh k s
/
nRF24L01P_Hello_World
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Fork of
nRF24L01P_Hello_World
by 
Owen Edwards
Revision 2:653be5496b69, committed 2015-03-31
- Comitter:
- sksarm
- Date:
- Tue Mar 31 01:38:31 2015 +0000
- Parent:
- 1:5be2682710c6
- Commit message:
- initial step
Changed in this revision
--- a/main.cpp Wed Jan 19 23:53:19 2011 +0000
+++ b/main.cpp Tue Mar 31 01:38:31 2015 +0000
@@ -8,6 +8,8 @@
DigitalOut myled1(LED1);
DigitalOut myled2(LED2);
+Timer t;
+
int main() {
// The nRF24L01+ supports transfers from 1 to 32 bytes, but Sparkfun's
@@ -18,6 +20,8 @@
char txData[TRANSFER_SIZE], rxData[TRANSFER_SIZE];
int txDataCnt = 0;
int rxDataCnt = 0;
+ int tmpDataCnt = 0;
+ char tmpData[TRANSFER_SIZE+1];
my_nrf24l01p.powerUp();
@@ -46,9 +50,11 @@
// If the transmit buffer is full
if ( txDataCnt >= sizeof( txData ) ) {
+ t.start();
+
// Send the transmitbuffer via the nRF24L01+
my_nrf24l01p.write( NRF24L01P_PIPE_P0, txData, txDataCnt );
-
+
txDataCnt = 0;
}
@@ -58,14 +64,38 @@
// If we've received anything in the nRF24L01+...
if ( my_nrf24l01p.readable() ) {
-
+
// ...read the data into the receive buffer
rxDataCnt = my_nrf24l01p.read( NRF24L01P_PIPE_P0, rxData, sizeof( rxData ) );
// Display the receive buffer contents via the host serial link
for ( int i = 0; rxDataCnt > 0; rxDataCnt--, i++ ) {
-
+
pc.putc( rxData[i] );
+ tmpData[tmpDataCnt++] = rxData[i];
+ }
+
+ if ( tmpDataCnt >= TRANSFER_SIZE ) {
+ tmpData[TRANSFER_SIZE] = '\0';
+ //pc.printf( "Received data : %s \r\n", tmpData);
+ if (strcmp(tmpData, "ackn"))
+ {
+ tmpData[0] = 'a';
+ tmpData[1] = 'c';
+ tmpData[2] = 'k';
+ tmpData[3] = 'n';
+ //pc.printf( "Sending data : %s \r\n", "ackn");
+ my_nrf24l01p.write( NRF24L01P_PIPE_P0, tmpData, tmpDataCnt );
+ }
+ else
+ {
+ t.stop();
+ pc.printf("\r\nThe time taken was %f seconds \r\n", t.read());
+ t.reset();
+ }
+
+
+ tmpDataCnt = 0;
}
// Toggle LED2 (to help debug nRF24L01+ -> Host communication)
--- a/mbed.bld Wed Jan 19 23:53:19 2011 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +0,0 @@ -http://mbed.org/users/mbed_official/code/mbed/builds/e2ac27c8e93e
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.lib Tue Mar 31 01:38:31 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/#9ad691361fac