Hello,
I use an igepv2 board which has an Arm cortex A8 processor and one TMS320C64x+ dsp processor. I want to send some data (a frame 720 x480) to dsp and save them to a temporal buffer.
I use dsplink for communication. I want to send data for n iterations save them and then to send them back to gpp. I allocate a buffer only for 16 bytes and I send this to DSP-SIDE.When I have sent all the frame to DSP the DSP sent it back. But when gpp is received data, these are not correct (there a lot of 0 and 255 after the buffer has sent).
When I restart the board, not shutdown there is not any 0 or 255 but the image is not correct. The scenario is the following .
A frame 720x480 has 518400 pixels. If a buffer has 16 bytes size , you must sent 32400 buffers. When all buffers are sent then DSP send these buffers back.
GPP send-> DSP
GPP send->DSP
...
all frame has sent
DSP send->GPP
DSP send->GPP
----
I save all the pixels to a variable FrmBuf which is defined as "#pragma DATA_SECTION( FrmBuf, "mySection" ); unsigned char FrmBuf[518400];" to dsp side. When I sent a buffer I save this to FrmBuf and then send it back, the gpp the data are correct. But when I sent all the frame and then I wait for receive the data are not correct. I have posted the code for send and receive.
Thanks
Regards
George
//gpp side
//for send
for(j=0;j<img->Iterations;j++){
//here i save data to buffer//
ptr8 = (Uint8 *) (FireDetect_IOReq.buffer) ;
printf("Iteration %d\n",j);
for(i=0;i<img->BufferSize;i++){
if(pixels<Luma_samples){
// printf("i::%d\n",i);
// printf("pixel::%d\n",pixels);
// printf("Y_cnt::%d\n",Y_cnt);
ptr8[i]=Y[cnt][Y_cnt++];
}
else if (pixels<Luma_samples+Chroma_samples){
ptr8[i]=U[cnt][U_cnt++];
}
else{
ptr8[i]=V[cnt][V_cnt++];
}
pixels++;
}
status = CHNL_issue (processorId, CHNL_ID_OUTPUT, &FireDetect_IOReq) ;
if (DSP_SUCCEEDED (status)) {
status = CHNL_reclaim (processorId,CHNL_ID_OUTPUT,WAIT_FOREVER,&FireDetect_IOReq) ;
if (DSP_FAILED (status)) {
FireDetect_1Print ("CHNL_reclaim () failed. Status = [0x%x]\n",status) ;
loop=cnt=atoi(img->Frames);
break;
}
}
//for receive
for(j=0;j<img->Iterations;j++){
printf("Wait for a msg\n");
status = MSGQ_get (SampleGppMsgq, WAIT_FOREVER, &msg) ;
printf("Receive a msg\n");
FireDetect_Sleep(1);
if (DSP_FAILED (status)) {
FireDetect_1Print ("MSGQ_get () failed. Status = [0x%x]\n",status) ;
loop=cnt=atoi(img->Frames);
break;
}
if (DSP_SUCCEEDED (status)) {
status = CHNL_issue (processorId, CHNL_ID_INPUT, &FireDetect_IOReq) ;
if (DSP_FAILED (status)) {
FireDetect_1Print ("CHNL_issue () failed. Status = [0x%x]\n",status) ;
loop=cnt=atoi(img->Frames);
break;
}
}
if (DSP_SUCCEEDED (status)) {
printf("Send data\n");
status = CHNL_reclaim (processorId,CHNL_ID_INPUT,WAIT_FOREVER,&FireDetect_IOReq) ;
if (DSP_FAILED (status)) {
FireDetect_1Print ("CHNL_reclaim () failed. Status = [0x%x]\n",status) ;
loop=cnt=atoi(img->Frames);
break;
}
else{
//save data for dsp back to the frame//
for(i=0;i<img->BufferSize;i++){
if(pixels<Luma_samples){
Y[cnt][Y_cnt]=FireDetect_IOReq.buffer[i];
printf("Y[%d][%d]",Y[cnt][Y_cnt]);
Y_cnt++;
}
else if (pixels<Luma_samples+Chroma_samples){
U[cnt][U_cnt]=FireDetect_IOReq.buffer[i];
printf("U[%d][%d]",U[cnt][U_cnt]);
U_cnt++;
}
else{
V[cnt][V_cnt]=FireDetect_IOReq.buffer[i];
printf("V[%d][%d]",V[cnt][V_cnt]);
V_cnt++;
}
pixels++;
}//end for
}end j
//dsp side
for(j=0;j<info->Iterations;j++){
status = SIO_issue (info->inputStream,buffer,info->bufferSize,arg) ;
if (status == SYS_OK) {
nmadus = SIO_reclaim (info->inputStream,(Ptr *) &buffer,&arg) ;
if (nmadus < 0) {
status = -nmadus;
SET_FAILURE_REASON (status) ;
}
else {
info->receivedSize = nmadus ;
}
}
else {
SET_FAILURE_REASON (status) ;
}
//save the received data to Frame//
if (status == SYS_OK) {
for (i = 0 ;i < info->noAllignedSize;i++) {
FrmBuf[pixels]=buffer[i];
LOG_printf (&trace, "%d\n", FrmBuf[pixels]) ;
pixels++;
}
}
}
//send back the frame
pixels=0;
for(j=0;j<info->Iterations;j++){
if(status==SYS_OK){
for (i = 0 ;i < info->noAllignedSize;i++) {
//prepare data for sending
buffer[i]=FrmBuf[pixels];
LOG_printf (&trace, "%d\n", buffer[i]) ;
pixels++;
}
}
if (status == SYS_OK) {
status = SIO_issue (info->outputStream,buffer,info->receivedSize,arg) ;
if (status == SYS_OK) {
nmadus = SIO_reclaim (info->outputStream,(Ptr *)&(buffer),&arg) ;
if (nmadus < 0) {
status = -nmadus ;
SET_FAILURE_REASON (status) ;
}
}
else {
SET_FAILURE_REASON (status) ;
}
}
}
}
