CC2530: ZNP SPI problem

Yevhenii Tsiura

Part Number: CC2530
Other Parts Discussed in Thread: CC-DEBUGGER, Z-STACK

Hi everyone! I have custom cc2530 PCB that i want to use with my arduino pro mini (3.3v)
I successfully flashed them with ZNP firmware (CC2530ZNP-Prod.hex) using CC-debugger. Than i connect this board to my computer with Prolific cp2102 converter using alternate pin configuration from documentation (CFG1 on GND) and make some tests in Z-Tools software and that was successfully.

But when i try to connect ZNP to arduino via SPI using main pin configuration (CFG1 to +3.3v) it works not correct.
As i know from doc after making reset pin HIGH ZNP must respond with POLL command - SYS_RESET_IND and wait for other commands (configuration, for example). But in my case after 0x4180 command (SYS_RESET_IND) SRDY goes LOW again and i get only zeros, a huge tons of zeros ((

My wiring scheme is: Arduino (ZNP) - 10(P0.3 + P1.4), 8(P0.4), 7(RESET), 13(P1.5), 12(P1.7), 11(P1.6)

This is my sketch and log - https://gist.github.com/zeran86/590af22f027f06e9397cdf935c350f0d

Can you tell me pls what i'm doing wrong with ZNP? Thanks for any help :)

over 7 years ago

0 Yevhenii Tsiura over 7 years ago

Intellectual 260 points

This is screenshot from logic analyzer log. As we can see - SRDY goes LOW on 5th byte. So at the end of transmission SYS_RESET_IND - SRDY already LOW! Can anyone explain what happened with ZNP device? Why he put SRDY to LOW in the transmission process?

0 Yevhenii Tsiura over 7 years ago in reply to Yevhenii Tsiura

Intellectual 260 points

As shown in log (github) data is : 1 2 0 2 6 0

This is screenshot with '6'

0 Yevhenii Tsiura over 7 years ago

Intellectual 260 points

Also this is complete log from Saleae Logic Analyzer 12 MHz, 60 M Samples [8].zip

I also try Z-Stack 3.0.1 ZNP image, built with IAR - same result

I think it's a bug in ZNP SPI. Can anyone help?

0 Suyash Jain over 7 years ago in reply to Yevhenii Tsiura

TI__Genius 10650 points

Hi Yevhenii, In the latest Z-Stack-3.0.1 release, SPI is not supported. Recommended interface to interface with host processor is UART.

0 Yevhenii Tsiura over 7 years ago in reply to Suyash Jain

Intellectual 260 points

Also i tried z-stack 3.0.0, it does not support SPI too?

0 YiKai Chen over 7 years ago in reply to Yevhenii Tsiura

Guru 735685 points

ZNP in z-stack 3.0.0 doesn't support SPI interface too.

0 Yevhenii Tsiura over 7 years ago in reply to YiKai Chen

Intellectual 260 points

Which version of zstack supports SPI?

0 YiKai Chen over 7 years ago in reply to Yevhenii Tsiura

Guru 735685 points

Z-Stack Home 1.2.2a

0 Yevhenii Tsiura over 7 years ago in reply to YiKai Chen

Intellectual 260 points

Ok. I also tried CC2530ZNP-Pro.hex from c:\Texas Instruments\Z-Stack Home 1.2.2a.44539\Projects\zstack\ZAP\ZNP-HexFiles\CC2530\ but got same result - cc2530 set SRDY to LOW before transmission complete. Any idea?

0 Yevhenii Tsiura over 7 years ago in reply to YiKai Chen

Intellectual 260 points

Please, help me with this issue. I really need to use SPI in ZNP. I made everything as described in with CC2530ZNP Interface Specification.pdf but everytime got same issue.

0 Yevhenii Tsiura over 7 years ago in reply to YiKai Chen

Intellectual 260 points

Today i tried to connect cc2530 ZNP to stm32f103 instead of atmega328 and it was successfully! I successfuly initiated device and write some config. So the problem was in atmega328, but i dont know why ... but this is question for another community )Thanks for replies )

0 YiKai Chen over 7 years ago in reply to Yevhenii Tsiura

Guru 735685 points

That is what I suspect and it’s good to know you prove it.

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CC2530: ZNP SPI problem