Forum Post: CC1101 and ASK/OOK

Hello,

I have successfully used my CC1101's with different frequencies (433/868) and modulations (gfsk, 2gsk, 4fsk) so far.

All except ASK/OOK.

I have read the DNO22 note : i have done all my settings with GFSK, then switched to ASK/OOK and adapted AGCCTRL 0/1/2, FREND1, TEST 2/1 and FIFOTHR.

My sender seems ok (aka sending without issues) but my receiver remains silent.

Futhermore, I have lots of ASK/OOK 433mhz devices around me so my receiver should pick them up but still no luck.

Below my settings from SmartRF, any idea/help?

Thank you.

Erwan

# Sync word qualifier mode = 30/32 sync word bits detected

# CRC autoflush = false

# Channel spacing = 199.951172

# Data format = Normal mode

# Data rate = 2.39897

# RX filter BW = 58.035714

# PA ramping = false

# Preamble count = 4

# Whitening = false

# Address config = No address check

# Carrier frequency = 433.999969

# Device address = 0

# TX power = 0

# Manchester enable = false

# CRC enable = true

# Deviation = 5.157471

# Packet length mode = Variable packet length mode. Packet length configured by the first byte after sync word

# Packet length = 255

# Modulation format = ASK/OOK

# Base frequency = 433.999969

# Channel number = 0

# PA table

#define PA_TABLE {0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,}

void config()

{

cc1101.writeReg(CC1101_IOCFG0,0x06);

cc1101.writeReg(CC1101_FIFOTHR,0x47);

cc1101.writeReg(CC1101_PKTCTRL0,0x05);

cc1101.writeReg(CC1101_FSCTRL1,0x06);

cc1101.writeReg(CC1101_FREQ2,0x10);

cc1101.writeReg(CC1101_FREQ1,0xB1);

cc1101.writeReg(CC1101_FREQ0,0x3B);

cc1101.writeReg(CC1101_MDMCFG4,0xF6);

cc1101.writeReg(CC1101_MDMCFG3,0x83);

cc1101.writeReg(CC1101_MDMCFG2,0x33);

cc1101.writeReg(CC1101_DEVIATN,0x15);

cc1101.writeReg(CC1101_MCSM0,0x18);

cc1101.writeReg(CC1101_FOCCFG,0x16);

cc1101.writeReg(CC1101_AGCCTRL2,0x04);

cc1101.writeReg(CC1101_AGCCTRL1,0x00);

cc1101.writeReg(CC1101_AGCCTRL0,0x92);

cc1101.writeReg(CC1101_WORCTRL,0xFB);

cc1101.writeReg(CC1101_FREND0,0x11);

cc1101.writeReg(CC1101_FSCAL3,0xE9);

cc1101.writeReg(CC1101_FSCAL2,0x2A);

cc1101.writeReg(CC1101_FSCAL1,0x00);

cc1101.writeReg(CC1101_FSCAL0,0x1F);

cc1101.writeReg(CC1101_TEST2,0x81);

cc1101.writeReg(CC1101_TEST1,0x35);

cc1101.writeReg(CC1101_TEST0,0x09);

}