AF_INCOMING_MSG causes problem

mohamed elsabagh

Other Parts Discussed in Thread: CC2530, Z-STACK

hello, i am trying to set up interface between ZNP coordinator (controller + CC2530) on one side and router CC2530 connected to my PC through Z-tool on other side. everything is working fine i can send several messages from the coordinator to the routers, and the router receives them all using AF_DATA_REQUEST command. when i try to send message from router to the coordinator, i can receive the callback AF_INCOMING_MSG and read the message successfully but then when i try to send any message from any side nothing happens, i found that the coordinator side is not responsive anymore, when i try to send message from it's side using AF_DATA_REQUEST so i pull and MRDY to low and wait for SRDY to be low but this nevers happen, and also when router sends any message the SRDY never go low so i never get any callback, i don't understand what's going on here, why CC2530 hangs up, or what is the real case

over 11 years ago

0 YiKai Chen over 11 years ago

Guru 735685 points

Don't understand your problem well. Try to describe your problem step by step in detail.

0 mohamed elsabagh over 11 years ago in reply to YiKai Chen

Expert 1095 points

my znp coordinator receives first AF_INCOMING_MSG as expected and can read the full message, after that i can't receive any more AF_INCOMING_MSG or send any messages using AF_DATA_REQUEST as normal unless i reset the device. it looks like it's hanging or something

0 YiKai Chen over 11 years ago in reply to mohamed elsabagh

Guru 735685 points

It sounds like you have memory leak in your program. Check if you allocate memory but not release after use.

0 mohamed elsabagh over 11 years ago in reply to YiKai Chen

Expert 1095 points

you mean the program in the application processor?? the application processor code is working fine, it just never get's SRDY low after processing the first AF_INCOMING_MSG but the program flow is normal

0 YiKai Chen over 11 years ago in reply to mohamed elsabagh

Guru 735685 points

Which Z-Stack version do you use? and What ZAP and ZNP examples do you test?

0 mohamed elsabagh over 11 years ago in reply to YiKai Chen

Expert 1095 points

Z-Stack Home 1.2.1 which is the latest one on the website, ZNP is CC2530ZNP-Pro.hex and i am using 8051 controller to control the cc2530

0 mohamed elsabagh over 11 years ago in reply to mohamed elsabagh

Expert 1095 points

i found that when i add breakpoints to my application processor code, and follow the flow of the code everything is working fine the only problem is that the SRDY never go low in SREQ commands or AREQ callbacks from CC2530

i expected at the begining that this is CC2530 probelm as it's not returning any low signal os SRDY and it seems like it's hanging, so i tried to reset only the CC2530 without resetting the main controller, but i found that the problem still exists in this case, the problem only disappears when i reset the whole system including the main controller (8051 controller), so now i am confused i can't decide the source of this problem

0 mohamed elsabagh over 10 years ago in reply to mohamed elsabagh

Expert 1095 points

for those who are experiencing the same problem, the solution for me was to add after reading the message data, 4 bytes dummy reading from SPI interface although it's not mentioned in CC2530 interface specification PDF, but it seems that this command has response sent from the CC2530 chip according to swra444.pdf, i am not sure of that but that worked for me anyway.

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AF_INCOMING_MSG causes problem