Linux/CC2538: CC2538 serial interfacing with host processor using SPI

mariya mary pradeep

Part Number: CC2538
Other Parts Discussed in Thread: Z-STACK

Tool/software: Linux

Hi,
I am working on Z-stack linux gateway application and CC2538 with Z-stack Home automation profile. I had seen that the stack supports both UART and SPI interface. I wanted to use SPI interface for connecting CC2538 with the host processor. According to my understanding, I need to compile ZNP image with HAL_SPI=true and in the gateway application side I need to give the SPI dev path in NPI_Gateway.cfg. Can I use the generic SPI drivers with device entry as /dev/spidev or any other specific zigbee drivers are needed? I would also like to know if any other changes are required on Z-stack linux gateway application or Z-stack Home automation profile side for using the SPI interface.

Thanks in advance

over 8 years ago

0 YiKai Chen over 8 years ago

Guru 735685 points

Z-Stack Linux Home GW uses UART as ZNP communication interface and it won't be easy to change it to use SPI. I suggest you to use UART instead of SPI if there is no special reason that you have to do so.

0 mariya mary pradeep over 8 years ago in reply to YiKai Chen

Expert 1275 points

Hi YK Chen,

Thanks for the reply. Actually we are developing a custom board with all UARTs preoccupied so we have to use SPI for CC2538. It would be grateful if you could help me for using SPI with CC2538.

0 YiKai Chen over 8 years ago in reply to mariya mary pradeep

Guru 735685 points

Sorry, I cannot help on this topic.

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Linux/CC2538: CC2538 serial interfacing with host processor using SPI