PSoC 4 MCU

[AMSH_1344256]

Hi,
Why two nos. of crystals(one is 32Khz and another is 24Mhz) are required in CY8C-142 Module KIT.

   

If both are required for BLE feature or without these two BLE feature may be used?

   

regards

   

AMIT

[JoMe_264151 · Accepted solution]

The 24MHz crystal is for the BLE radio, CPU and peripherals and is absolutely required, while the 32KHz is for maintaining a stable low-speed clock which might not be required, but must be accounted for when deep-sleep power saving states are used to wake up the chip at a precise rate.

       

Bob

[AMSH_1344256]

Thanks Bob, it means to use BLE feature of PSoC4 we need to use 24MHz external crystal or TCXO.