WIENER Product Discussion

[ntgu2002]

I have to acquisition in list mode. Trigger signal by LAM.

As I understand, it is necessary:
1. Load command stack, using function xxusb_stack_write (I need read N=11, A=0, F=2), i.e. stack should contain: 0x0001, 0x1602?
2. Write LAM mask using CAMAC_write_LAM_mask.
3. Start acquisition by setting bit 0 of the Action Register to 1. I should use xxusb_register_write or CAMAC_register_write?
4. Then I have to read the USB port In FIFO in a loop using xxusb_bulk_read? How?

Could you give an example how to make it on c ++.

[aruben]

Hi, here is an example for stack mode operation. Please note that you have to drain all data from the buffer when ending DAQ mode.

//-------------------------------------------------------------------------
// Read LeCroy 2249A im LAM triggered DAQ mode
// A. Ruben 06/22/07
// tested with 2249 in slot 15 / LAM-mask 0x4000 and up to 10kHz rate 06/20/07
// tested with C-EMU in slot 2 / LAM-mask 0x2 at 10kHz pulser rate 06/22/07
//-------------------------------------------------------------------------
int CCUSB_Test_DAQ_read_2249 (usb_dev_handle *hdev, long loops, long trigger_rate, long LAM)
{
long stack [100];
int i,j,k,k_loops, error_count=0, events=0, event_size=0;
// unsigned int IntArray [10000]; //-> produces 32 bit data structure, use only with event alignment!
short IntArray [10000]; //for FIFOREAD
// char * ByteAP;
long data_lines;
long CEMU_ct_0, CEMU_ct, CamN;
int ret,CamQ, CamX;
int CAM_2249=2; // station number for 2249 ADC
// prepare stack and load to CC-USB
CamN=(CAM_2249<<9);
stack[0] = 0x0F; // number of lines to follow
for (i=0; i<=11; i++) stack[i+1] = CamN+(i<<5); // Read C-EMU N(in bits 9-13) F(0) A(i) for counter
stack[13] = CamN+0x0009; // CLEAR LAM N()with F(9) A(0)
stack[14] = 0x0010; // add marker
stack[15] = 0xffff; // marker = ffff
ret = xxusb_stack_write(hdev, 2, stack);
// Prepare LeCroy ADC (enable LAM)
ret = CAMAC_read(hdev, CAM_2249, 0, 26, &CEMU_ct_0,&CamQ, &CamX);
// Define Trigger LAM=0 -> extern, otherwise LAM
ret = CAMAC_write(hdev, 25,9,16,LAM,&CamQ, &CamX);

// set buffer to 4092
// Set buffer size to 4k BuufOpt in Global Mode register N(25) A(1) F(16)
ret = CAMAC_write(hdev, 25, 1, 16, 0x0,&CamQ, &CamX);

// Prepare data file
data_file = fopen("CCUSB_test_2249.txt","w");
fprintf(data_file,"CC-USB test data file \n");
// START DAQ
// printf("switch to DAQ & Reading data\n");
// Start DAQ mode
ret = xxusb_register_write(hdev, 1, 0x1); // start acquisition
k_loops=0;
while(k_loops<loops) // number of loops to read
{
ret = xxusb_bulk_read(hdev, IntArray, 8192, 100); // use for 32-bit data
data_lines = ret / 2;
event_size = (IntArray[1] & 0xffff);
if (event_size > 0x100) event_size = 0x100;
if (data_file !=NULL)
{

if(ret>0)
{
events = (IntArray[0]& 0xffff);
// printf("Events in loop %i : %i\n ",k_loops, events);
for (j=0; j<=data_lines; j++) fprintf(data_file,"%hx \t",IntArray[j]);
}
else
{
error_count ++;
printf("no read\n");
}
fprintf(data_file,"\n");
}
k_loops ++;
}
// leave DAQ mode
xxusb_register_write(hdev, 1, 0x0);
// drain all data from fifo
ret=1;
k=0;
while(ret>0)
{
ret = xxusb_bulk_read(hdev, IntArray, 8192, 100);
if(ret>0)
{
// printf("drain loops: %i (result %i)\n ",k,ret);
k++;
if (k>100) ret=0;
}
}
// in case still DAQ mode -> leave!!!
// xxusb_register_write(hdev, 1, 0x0);
fclose(data_file);
return 0;
}

[ntgu2002]

thanks for the fast reply!!

[ntgu2002]

Hello again! I have problem with your code.

In a manual_CC-USB_2_7_1.pdf description of the function the following:

WORD xxusb_bulk_read{
HANDLE hDevice,
CHAR *pData,
WORD wDataLen,
WORD wTimeout
};

In your code, you use instead of array char array short,
like this:
short IntArray [10000];
xxusb_bulk_read(hdev, IntArray, 8192, 100);

then I have an error:
error C2664: 'xxusb_bulk_read' : cannot convert parameter 2 from 'short [10000]' to 'char *'

if I use char array:
char IntArray[10000];
xxusb_bulk_read(hdev, IntArray, 8192, 100);

then:
error LNK2019: unresolved external symbol "short __stdcall xxusb_bulk_read(struct usb_dev_handle *,char *,short,int)" (?xxusb_bulk_read@@YGFPAUusb_dev_handle@@PADFH@Z) referenced in function "public: void __thiscall CNAF06Dlg::OnBnClickedStart(void)" (?OnBnClickedStart@CNAF06Dlg@@QAEXXZ)

[aruben]

I assumethere is something else wrong. I can compile this with visual studi 7 without a problem. Defining only the pointer the data can be even accessed as 32 bit words, i.e.

unsigned int IntArray [10000]; //-> produces 32 bit data structure, use only with event alignment!

// short IntArray [10000]; //for FIFOREAD
// char IntArray [10000]; //for FIFOREAD

will work too! I just tested all 3 different tyoes and got no compilation error!

[ntgu2002]

I think, if you can compile that code, maybe something wrong with
.lib/.dll/.h?!
I have XX-USB version 3.5 from wiener-d.com
From "XX-USB_CD3_5\MS-Windows C++\EasyCAMAC demo-c" I took the
xxusbdll.h and add to my project.
Also the files: libxxusb.lib, libxxusb.dll, libusb0.dll I've put in to
the directory with the program.
And in the property of a project in: Linker->Input->Additional
Dependencies, I have written "libxxusb.lib".

All is correct?

Could you send me an example project (visual c++) with all libraries!?

[aruben]

Hi,
I got your mail and will send he complete visual studio project later today.

[ntgu2002]

Thank you very much!!