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CC1310: OOK mode at 20 kbps

Part Number: CC1310

Is it possible to configure CC1310 to OOK and 20 kbps?

I tried to use the default settings for OOK (4.8 kbps) in smartRF studio and increase the symbol rate to 20 kbps but it didn't work.

Can I use the override editor to change a parameter and achieve 20 kbps symbol rate?

Thanks in advance,

Yannis

  • There are two overrides that need to be changed:

    HW_REG_OVERRIDE(0x52B8,0x8078), [14:0 ]defines the duty cycle delay when MSB = 1. The PA start ramp down after Symbol period / 2 + DutyCycleDelay. Set this to 0x8015 to get 50% duty cycle

    HW_REG_OVERRIDE(0x6098,0x7200), The 4 MSB's sets the ramping up and down time (i.e. shaping of each bit). Set this to 0x1200

    I did a quick test with the above and the duty cycle was approximately 50%. Minor tweaking of the settings might be needed; i.e 0x52B8, bits[14:0] for duty cycle and 0x6098, bits [15:12] for ramp up and ramp down time.
  • Thank you for the prompt answer.

    In the following post e2e.ti.com/.../490445
    the HW_REG_OVERRIDE(0x6098,0x7200) changes the output power.
    If I set 0x6098 to 0x1200, which is the tx Power? 14 dBm? Is the table in the above post valid when you change 0x52B8?

  • My mistake. The 3 MSB's sets the ramping up and down time (i.e. shaping of each bit). The other bits sets the output power. That is, HW_REG_OVERRIDE(0x6098,0x7200) and HW_REG_OVERRIDE(0x6098,0x1200) should give the same output power, but different ramp up and down times.
  • Thanks for the explanation. It works fine.