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CC2530EMK: CC2530-ZNP UART Interface

Part Number: CC2530EMK
Other Parts Discussed in Thread: CC2530, TIMAC, CC2530-CC2591EM


I am learning ZigBee using STM32F103RB(MCU) + CC2530

The board and module went through SPI communication and operated without error.

Like Init, Send Message(AF_DATA_REQUEST) or Receive Message(AF_INCOMING_MSG) ...

I used ZNP Kit pin configuration and properly worked.

MCU    CC2530

NSS <-> SS (P0_4)

SCL <-> C (P0_5)

MOSI <-> MO (P0_3)

MISO <-> MI (P0_2)


MRDY(GPIO) <-> MRDY (P2_0)

SRDY(GPIO) <-> SRDY (P1_0)

CFG0 (Not Connected)

CFG1 (Not Connected)

So now I'm trying to change communication(MCU <-> CC2530) to UART

I have tried Three pin configuration(main, alt, ZNP kit) for UART But I didn't 

1. So I want to know which configuration is right way (for UART)

2. And how to wire MCU and CC2530.

I try below 

MCU    CC2530

RX <-> TX

TX <-> RX

CTS or NC <-> RTS

RTS or GND <-> CTS


GND <-> CFG0

GND <-> CFG1 

and send SYS_VERSION (FE 00 21 02  FCS)and waiting UART Rx interrupt

3. If physical interface is good, and then how to test It. Like send to CC2530 SYS_VERSION command and check Response