CY8C4247LQI-BL483 - Problems getting 24 MHz oscillator to start/run

jaric_3587386 Jul 19, 2018 10:32 AM

I have a PSoC4-BLE device on a custom board. The device programs and the IMO and 32.768KHz oscillator spin up fine. The 24MHz oscillator does not start and does not run. Has anyone else run into a similar problem? The power supplies look good as far as I can tell, and the rails are thoroughly bypassed.

1. Re: CY8C4247LQI-BL483 - Problems getting 24 MHz oscillator to start/run

PY_21 Jul 20, 2018 1:46 AM (in response to jaric_3587386)

Hello Jacques Richer,

Please share the Schematic of your custom board.

Thanks,
PSYU.
Like Show 0 Likes(0)

Actions
2. Re: CY8C4247LQI-BL483 - Problems getting 24 MHz oscillator to start/run

PY_21 Aug 14, 2018 4:41 AM (in response to jaric_3587386)

Hello,

Please refer the Clocking System section in the attached PSoC4 BLE Architecture TRM datasheet.

Thanks,
PSYU.
Like Show 0 Likes(0)

Actions
3. Re: CY8C4247LQI-BL483 - Problems getting 24 MHz oscillator to start/run

BoTa_264741 Aug 14, 2018 7:11 AM (in response to jaric_3587386)

jricher,
Try different bypass capacitor value for XTAL (10-24pf).
/odissey1
1 of 1 people found this helpful
Like Show 0 Likes(0)

Actions

Go to original post