Hello,
I use the following (on both C28 and M3):
ccs: 5.3.0.00090
xdc: 3.24.5.48
IPC:1.25.0.04
sys/bios: 6.34.2.18
I tried to modify the MessageQ example you get from "new project -> template -> concertoc28/ipc and io example/F28M35x examples/MessageQ" to pass two Integer along with the messages.
I ran into some strange behaviour, my biggest problem is this: I can get the MsgId on C28 side but not the correct MsgSize nor the data. (As a side note, if I change Int32 for int in the message structure, the whole program collapses at runtime, I suppose int is not the same size on both core?)
Since I could not easily get the debugger to put break point where I wanted and the code was not crashing, I put a lot of printf instead.
I have the impression that the data are transmitted but kind of loose coherence when viewed on c28 side. for example: i get the feeling that the second integer on c28 is the first on M3 and that the first on c28 is... bulls****.
Any help would be quite welcome!
thanks in advance
Laurent
ps: here are my code snippets: (.h file identical to both projects)
| typedef struct{ MessageQ_MsgHeader messageQ_MsgHeader; Int32 a0; Int32 a1; } cmdMsgQ; |
M3 code "settings":
| // definition of variables cmdMsgQ* msg; //MessageQ_Msg msg; MessageQ_Handle messageQ; MessageQ_QueueId remoteQueueId; Int status; UInt16 msgId = 0; Ptr buf; HeapBuf_Handle heapHandle; HeapBuf_Params hbparams; SizeT blockSize; UInt numBlocks; //====================== setting the environment /* Compute the blockSize & numBlocks for the HeapBuf */ numBlocks = 2; blockSize = sizeof(cmdMsgQ); /* Alloc a buffer from the default heap */ buf = Memory_alloc(0, numBlocks * blockSize, 0, NULL); /* * Create the heap that is used for allocating MessageQ messages. */ HeapBuf_Params_init(&hbparams); hbparams.align = 0; hbparams.numBlocks = numBlocks; hbparams.blockSize = blockSize; hbparams.bufSize = numBlocks * blockSize; hbparams.buf = buf; heapHandle = HeapBuf_create(&hbparams, NULL); if (heapHandle == NULL) { System_abort("HeapBuf_create failed\n" ); } /* Register default system heap with MessageQ */ MessageQ_registerHeap((IHeap_Handle)(heapHandle), HEAPID); /* Create the local message queue */ messageQ = MessageQ_create(localQueueName, NULL); if (messageQ == NULL) { System_abort("MessageQ_create failed\n" ); } /* Open the remote message queue. Spin until it is ready. */ do { status = MessageQ_open(remoteQueueName, &remoteQueueId); /* * Sleep for 1 clock tick to avoid inundating remote processor * with interrupts if open failed */ if (status < 0) { Task_sleep(1); } } while (status < 0); /* Allocate a message to be ping-ponged around the processors */ msg = (cmdMsgQ*) MessageQ_alloc(HEAPID, sizeof(cmdMsgQ)); if (msg == NULL) { System_abort("MessageQ_alloc failed\n" ); } //====================== end of environment setting, ready to send and read messages: // now that the message is allocated, modify its intern data: msg->a0 = 0; msg->a1 = 11; |
C28 code "settings":
| //=============================== definition of variables cmdMsgQ* msg; // MessageQ_Msg msgB; MessageQ_Handle messageQ; MessageQ_QueueId remoteQueueId; Int status; UInt16 msgId = 0; Ptr buf; HeapBuf_Handle heapHandle; HeapBuf_Params hbparams; SizeT blockSize; UInt numBlocks; //=============================== setting of the environment /* Compute the blockSize & numBlocks for the HeapBuf */ numBlocks = 2; blockSize = sizeof(cmdMsgQ); /* Alloc a buffer from the default heap */ buf = Memory_alloc(0, numBlocks * blockSize, 0, NULL); /* * Create the heap that is used for allocating MessageQ messages. */ HeapBuf_Params_init(&hbparams); hbparams.align = 0; hbparams.numBlocks = numBlocks; hbparams.blockSize = blockSize; hbparams.bufSize = numBlocks * blockSize; hbparams.buf = buf; heapHandle = HeapBuf_create(&hbparams, NULL); if (heapHandle == NULL) { System_abort("HeapBuf_create failed\n" ); } /* Register default system heap with MessageQ */ MessageQ_registerHeap((IHeap_Handle)(heapHandle), HEAPID); /* Create the local message queue */ messageQ = MessageQ_create(localQueueName, NULL); if (messageQ == NULL) { System_abort("MessageQ_create failed\n" ); } /* Open the remote message queue. Spin until it is ready. */ do { status = MessageQ_open(remoteQueueName, &remoteQueueId); /* * Sleep for 1 clock tick to avoid inundating remote processor * with interrupts if open failed */ if (status < 0) { Task_sleep(1); } } while (status < 0); |
M3 code "ping-pong":
| /* * Send the message to the remote processor and wait for a message * from the remote processor. */ //System_printf("the length of the command message is : \n",sizeof(cmdMsgQ)); System_printf("Start the main loop\n"); while (msgId < NUMLOOPS) { /* Increment...the remote side will check this */ msgId++; MessageQ_setMsgId(msg, msgId); //(MessageQ_Msg) msg->a0++; msg->a1--; System_printf("Sending message #%d to %s\n", msgId, remoteQueueName); /* send the message to the remote processor */ status = MessageQ_put(remoteQueueId, (MessageQ_Msg)msg); if (status < 0) { System_abort("MessageQ_put had a failure/error\n"); } System_printf("[m3 speaking] M3 has sent the following data %d ; %d\n", msg->a0, msg->a1); System_printf("[m3 speaking] the message had the following length: %d \n", MessageQ_getMsgSize((MessageQ_Msg)msg)); /* Get a message */ status = MessageQ_get(messageQ, ((MessageQ_Msg*) &msg), MessageQ_FOREVER);//<== THIS DOES SEEM VERY STRANGE if (status < 0) { System_abort("This should not happen since timeout is forever\n"); } System_printf("[m3 speaking] M3 has received the following data %d ; %d\n", msg->a0, msg->a1); System_printf("[m3 speaking] the message had the following length: %d \n", MessageQ_getMsgSize(msg)); } |
C28 code "ping-pong":
| System_printf("Start the main loop\n"); while (TRUE) { /* Get a message */ status = MessageQ_get(messageQ, ((MessageQ_Msg*) &msg), MessageQ_FOREVER); //<== THIS DOES SEEM VERY STRANGE if (status < 0) { System_abort("This should not happen since timeout is forever\n"); } System_printf("[c28 speaking] C28 has received the following data: %d ; %d\n", msg->a0, msg->a1); System_printf("[c28 speaking] the message had the following length: %d \n", MessageQ_getMsgSize(msg)); System_printf("Sending a message #%d to %s\n", MessageQ_getMsgId(msg), remoteQueueName); /* Get the message id */ msgId = MessageQ_getMsgId(msg);//(MessageQ_Msg) /* send the message to the remote processor */ status = MessageQ_put(remoteQueueId, (MessageQ_Msg)msg); if (status < 0) { System_abort("MessageQ_put had a failure/error\n"); } System_printf("[c28 speaking] C28 has sent the following data: %d ; %d\n", msg->a0,msg->a1); System_printf("[c28 speaking] the message had the following length: %d \n", MessageQ_getMsgSize(msg)); /* test done */ if (msgId >= NUMLOOPS) { break; } } |
Console output:
| [Cortex_M3_0] Start the main loop Sending message #1 to C28_queue [m3 speaking] M3 has sent the following data 1 ; 10 [m3 speaking] the message had the following length: 40 [C28xx_0] C28 speaking: local queue name is: C28_queueStart the main loop [c28 speaking] C28 has received the following data: 0 ; 1 [c28 speaking] the message had the following length: 0 Sending a message #1 to M3_queue [c28 speaking] C28 has sent the following data: 0 ; 1 [c28 speaking] the message had the following length: 0 [Cortex_M3_0] [m3 speaking] M3 has received the following data 1 ; 10 [m3 speaking] the message had the following length: 40 Sending message #2 to C28_queue [m3 speaking] M3 has sent the following data 2 ; 9 [m3 speaking] the message had the following length: 40 [C28xx_0] [c28 speaking] C28 has received the following data: 0 ; 2 [c28 speaking] the message had the following length: 0 Sending a message #2 to M3_queue [c28 speaking] C28 has sent the following data: 0 ; 2 [c28 speaking] the message had the following length: 0 [Cortex_M3_0] [m3 speaking] M3 has received the following data 2 ; 9 [m3 speaking] the message had the following length: 40 Sending message #3 to C28_queue [m3 speaking] M3 has sent the following data 3 ; 8 [m3 speaking] the message had the following length: 40 [C28xx_0] [c28 speaking] C28 has received the following data: 0 ; 3 [c28 speaking] the message had the following length: 0 Sending a message #3 to M3_queue [c28 speaking] C28 has sent the following data: 0 ; 3 [c28 speaking] the message had the following length: 0 [Cortex_M3_0] [m3 speaking] M3 has received the following data 3 ; 8 [m3 speaking] the message had the following length: 40 Sending message #4 to C28_queue [m3 speaking] M3 has sent the following data 4 ; 7 [m3 speaking] the message had the following length: 40 [C28xx_0] [c28 speaking] C28 has received the following data: 0 ; 4 [c28 speaking] the message had the following length: 0 Sending a message #4 to M3_queue [c28 speaking] C28 has sent the following data: 0 ; 4 [c28 speaking] the message had the following length: 0 [Cortex_M3_0] [m3 speaking] M3 has received the following data 4 ; 7 [m3 speaking] the message had the following length: 40 Sending message #5 to C28_queue [m3 speaking] M3 has sent the following data 5 ; 6 [m3 speaking] the message had the following length: 40 [C28xx_0] [c28 speaking] C28 has received the following data: 0 ; 5 [c28 speaking] the message had the following length: 0 Sending a message #5 to M3_queue [c28 speaking] C28 has sent the following data: 0 ; 5 [c28 speaking] the message had the following length: 0 [Cortex_M3_0] [m3 speaking] M3 has received the following data 5 ; 6 [m3 speaking] the message had the following length: 40 Sending message #6 to C28_queue [m3 speaking] M3 has sent the following data 6 ; 5 [m3 speaking] the message had the following length: 40 [C28xx_0] [c28 speaking] C28 has received the following data: 0 ; 6 [c28 speaking] the message had the following length: 0 Sending a message #6 to M3_queue [c28 speaking] C28 has sent the following data: 0 ; 6 [c28 speaking] the message had the following length: 0 [Cortex_M3_0] [m3 speaking] M3 has received the following data 6 ; 5 [m3 speaking] the message had the following length: 40 Sending message #7 to C28_queue [m3 speaking] M3 has sent the following data 7 ; 4 [m3 speaking] the message had the following length: 40 [C28xx_0] [c28 speaking] C28 has received the following data: 0 ; 7 [c28 speaking] the message had the following length: 0 Sending a message #7 to M3_queue [c28 speaking] C28 has sent the following data: 0 ; 7 [c28 speaking] the message had the following length: 0 [Cortex_M3_0] [m3 speaking] M3 has received the following data 7 ; 4 [m3 speaking] the message had the following length: 40 Sending message #8 to C28_queue [m3 speaking] M3 has sent the following data 8 ; 3 [m3 speaking] the message had the following length: 40 [C28xx_0] [c28 speaking] C28 has received the following data: 0 ; 8 [c28 speaking] the message had the following length: 0 Sending a message #8 to M3_queue [c28 speaking] C28 has sent the following data: 0 ; 8 [c28 speaking] the message had the following length: 0 [Cortex_M3_0] [m3 speaking] M3 has received the following data 8 ; 3 [m3 speaking] the message had the following length: 40 Sending message #9 to C28_queue [m3 speaking] M3 has sent the following data 9 ; 2 [m3 speaking] the message had the following length: 40 [C28xx_0] [c28 speaking] C28 has received the following data: 0 ; 9 [c28 speaking] the message had the following length: 0 Sending a message #9 to M3_queue [c28 speaking] C28 has sent the following data: 0 ; 9 [c28 speaking] the message had the following length: 0 [Cortex_M3_0] [m3 speaking] M3 has received the following data 9 ; 2 [m3 speaking] the message had the following length: 40 Sending message #10 to C28_queue [m3 speaking] M3 has sent the following data 10 ; 1 [m3 speaking] the message had the following length: 40 [C28xx_0] [c28 speaking] C28 has received the following data: 0 ; 10 [c28 speaking] the message had the following length: 0 Sending a message #10 to M3_queue [c28 speaking] C28 has sent the following data: 0 ; 10 [c28 speaking] the message had the following length: 0 The test is complete [Cortex_M3_0] [m3 speaking] M3 has received the following data 10 ; 1 [m3 speaking] the message had the following length: 40 The test is complete |