Problems！FreeMASTER communication through CAN！

pengjianxin — Mon, 19 Jun 2017 08:37:10 GMT

hello：

i intergrated the freemaster codes into my application code，and download the S19 file into the evaluation bord.

the communication configuration is ：

(1)short-inter mode；

(2) the FMSTR_Poll() is in for(;;)，FMSTR_Isr() is in can receive interrupt function; FMSTR_Init()；

(3)FlexCAN, SPC56**

Then, the result of “Test Connection”：

" target is alive （responded to ping）"

the standard frame 0x7aa send and the response is received,but in the next step i click the button " STOP " to start communication，the results is below:

" Can not detec the board information！ the communication will paused. Error code: 0x858e0003

I have several questions：

(1) Freemater through CAN， the protocol of communication is XCP/CCP？ because i do not find the protocol in the specification，please confirm the information。

(2) without can protocol，how can i fix the problem？

looking forward to your response,My E@mal is" flesher@126.com ", thank you.

Re: Problems！FreeMASTER communication through CAN！

stanish — Mon, 17 Jul 2017 13:06:22 GMT

Hello,

To make the debugging of this issue a bit simpler I'd recommend you to start with polling mode first since the complexity of the interrupts is not involved.

#define FMSTR_POLL_DRIVEN 1

Please make sure CAN ID on the target matches with embedded side (FMSTR_CAN_CMDID, FMSTR_CAN_RESPID - freemaster_defcfg.h). Default value is 0x7aa.

Also you can try to increase the response timeout:

FreeMASTER does not use XCP/CPP protocol but its own protocol (see fremaster_protocol.c/freemaster_protocol.h)

Hope it helps.

Stan

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Problems！FreeMASTER communication through CAN！

Re: Problems！FreeMASTER communication through CAN！