Hi there,
I am using a Uno R3 connected to a RF1100SE / CC1101 module.
I connected everything according to various descriptions found and downloaded the receiver sketch to the board. I have no idea why, but the only thing I receive via the serial port is "start", so even the init fails or the CC1101 module does not react at all.
Does anybody have an idea? Thanks!
Arduino GND CC1101 GND
Arduino VCC (+3.3v) CC1101 VCC
Arduino 10 CC1101 CSN (SS)
Arduino 11 CC1101 SI (MOSI)
Arduino 12 CC1101 SO (MISO)
Arduino 13 CC1101 SCK
#include "EEPROM.h"
#include "cc1101.h"
// The LED is wired to the Arduino Output 4 (physical panStamp pin 19)
#define LEDOUTPUT 4
// The connection to the hardware chip CC1101 the RF Chip
CC1101 cc1101;
byte b;
byte i;
byte syncWord = 199;
long counter=0;
byte chan=0;
// a flag that a wireless packet has been received
boolean packetAvailable = false;
void blinker(){
digitalWrite(LEDOUTPUT, HIGH);
delay(100);
digitalWrite(LEDOUTPUT, LOW);
delay(100);
}
/* Handle interrupt from CC1101 (INT0) gdo0 on pin2 */
void cc1101signalsInterrupt(void){
// set the flag that a package is available
packetAvailable = true;
}
void setup()
{
Serial.begin(38400);
Serial.println("start");
// setup the blinker output
pinMode(LEDOUTPUT, OUTPUT);
digitalWrite(LEDOUTPUT, LOW);
// blink once to signal the setup
blinker();
// initialize the RF Chip
cc1101.init();
cc1101.setSyncWord(&syncWord, false);
cc1101.setCarrierFreq(CFREQ_433);
cc1101.disableAddressCheck(); //if not specified, will only display "packet received"
//cc1101.setTxPowerAmp(PA_LowPower);
Serial.print("CC1101_PARTNUM "); //cc1101=0
Serial.println(cc1101.readReg(CC1101_PARTNUM, CC1101_STATUS_REGISTER));
Serial.print("CC1101_VERSION "); //cc1101=4
Serial.println(cc1101.readReg(CC1101_VERSION, CC1101_STATUS_REGISTER));
Serial.print("CC1101_MARCSTATE ");
Serial.println(cc1101.readReg(CC1101_MARCSTATE, CC1101_STATUS_REGISTER) & 0x1f);
attachInterrupt(0, cc1101signalsInterrupt, FALLING);
Serial.println("device initialized");
}
void ReadLQI()
{
byte lqi=0;
byte value=0;
lqi=(cc1101.readReg(CC1101_LQI, CC1101_STATUS_REGISTER));
value = 0x3F - (lqi & 0x3F);
Serial.print("CC1101_LQI ");
Serial.println(value);
}
void ReadRSSI()
{
byte rssi=0;
byte value=0;
rssi=(cc1101.readReg(CC1101_RSSI, CC1101_STATUS_REGISTER));
if (rssi >= 128)
{
value = 255 - rssi;
value /= 2;
value += 74;
}
else
{
value = rssi/2;
value += 74;
}
Serial.print("CC1101_RSSI ");
Serial.println(value);
}
void loop()
{
if(packetAvailable){
Serial.println("packet received");
// Disable wireless reception interrupt
detachInterrupt(0);
ReadRSSI();
ReadLQI();
// clear the flag
packetAvailable = false;
CCPACKET packet;
if(cc1101.receiveData(&packet) > 0){
if(!packet.crc_ok) {
Serial.println("crc not ok");
}
if(packet.length > 0){
Serial.print("packet: len ");
Serial.print(packet.length);
Serial.print(" data: ");
for(int j=0; j<packet.length; j++){
Serial.print(packet.data[j],HEX);
Serial.print(" ");
}
Serial.println(".");
}
}
// Enable wireless reception interrupt
attachInterrupt(0, cc1101signalsInterrupt, FALLING);
}
}