PSoc4 Bluetooth Problem

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kikw_2616236
Level 2
Level 2
First like given

1. Preference

- Windows10

- PSoc Creator 4.1 ~ 4.2

- MCU : CY8C4247LQI-BL473, CY8C4248LQI-BL583 (CY8CKit-042-BLE-A Pioneer board)

   ( Selected correctly in Device Selector depending on MCU at PSoc Creator)

- Example Source : BLE_FindMe (PSoc Example source)

- bluetooth Android APP : CySmart

2. Problem : "CY8C4247LQI-BL473" board Bluetooth not working ( I make pcb board for PSoc4 MCU -> CY8C4247LQI-BL473 assembled )

- "CY8C4248LQI-BL583" bluetooth working good (CY8CKit-143A Board)

3. PCB Bluetooth antenna test : Bluetooth antenna works well

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4. Schematic

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5. "CY8C4247LQI-BL473" board's function working well except bluetooth (IO, Timer, UART, Input Interrupt )

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thanks

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1 Solution

I found the problem.

the problem is resonator ( CSTCW24M0X53-R0 )

i change the resonator (CSTCW24M0X53-R0) to Crystal ( CY8CKit-143A Board's 24MHz Crystal)

Result : bluetooth working

I don't know the difference between crystal and resonator.

Can I use a resonator in PSoc4?

Datasheet

Resonator : CSTCW24M0X53-R0 --> CSTCW24M0X53-R0|Ceramic Resonators (CERALOCK®)|Timing Devices|Murata Manufacturing Co., Ltd.

Crystal : ECS-240-8-36CKM-TR --> http://www.mouser.com/ds/2/122/ECX-2236-15751.pdf

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