COMMUNICATION BETWEEN CC2530 AND UART OF PC.

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Posted by vignesh kumar

on Aug 03 2012 01:44 AM

Prodigy80 points

Hi guys,

I have cc2530 + cc2591 .

I compiled Project named CC2530-TestHex placed in C:\Texas Instruments\ZStack-CC2530-2.5.1a\Projects\zstack\ZNP by enabling macro HAL_PA_LNA to support

CC2591.

I have connected CC2530 UART_0 to PC via level translator. The pins which are connected are TX,RX and GND.

After reset of CC2530 , I am expecting SYS_RESET_IND message from CC2530 to PC. But I am getting junk value. SOP = 0xFE itself is not available.

The serial port setting which i used are,

Baudrate - 38400

Databits - 8

Parity - none

Stop bits - 1

Flow control - none (since only TX and RX is connected to PC)

My question is there any changes in zstack code needed,

1.To support UART_0 of CC2530?

2. To disable flow control of UART?

3.How to test Z-stack on CC2530 communicating to PC via UART properly?

Thanks in advance....

regards,

Vignesh

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Posted by Cheng Meng

on Aug 03 2012 03:37 AM

Verified Answer

Verified by vignesh kumar

Prodigy140 points

Hi,

Maybe your UART settings are not correct.

The following UART configuration is supported:
• Baud rate: 115200
• Hardware (RTS/CTS) flow control.
• 8-N-1 byte format.

(from CC2530ZNP Interface Specification.pdf)

Regards.

Posted by vignesh kumar

on Aug 05 2012 22:59 PM

Prodigy80 points

Thanks Cheng Meng ...

Ya , You are right about UART setting.. I set baud rate as 115200.. I set No flow control... I modified Z_stack code for making no flow control...

The modified code,

In znp_app.c , npInit() function changed uartConfig.flowcontrol = TRUE to uartConfig.flowcontrol = FALSE..

Now I am communicating to CC2530 Z-stack via Z-TOOL using serial port pin only RX and TX..

Regard,

Vignesh