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11 February 2014 08:20 AM

orse Newbie

Total Posts: 8

Joined 2012-11-16

I'm having a problem with ANT_SendBurstTransfer comman.
I call it passing an array or 128 byte ,so 16 packets of 8 bytes.
My code (delphi) is very simple :

cont:= length(burst)
ANT_SendBurstTransfer(0,burst,Round(cont/8)); 

But the dll send always a lot of burst packets filled by 0. I seems to ignore
the number of packets I put in the second argument.

Here an antware log:
Received BURST_DATA_0x50
:: 50, 00-12-00-80-C2-80-00-02-00
Received BURST_DATA_0x50
:: 50, 20-02-02-D2-D3-23-02-F2-40
Received BURST_DATA_0x50
:: 50, 40-1E-00-D0-1C-C2-93-D0-1C
Received BURST_DATA_0x50
:: 50, 60-FD-23-F2-F0-FE-FF-23-02
Received BURST_DATA_0x50
:: 50, 20-5B-43-5F-42-6F-1C-4F-93
Received BURST_DATA_0x50
:: 50, 40-07-24-7F-90-0A-00-2A-24
Received BURST_DATA_0x50
:: 50, 60-7F-90-0C-00-9B-20-3C-3C
Received BURST_DATA_0x50
:: 50, 20-5E-42-C9-1C-4E-9F-04-24
Received BURST_DATA_0x50
:: 50, 40-F2-40-0A-00-6F-1C-ED-3F
Received BURST_DATA_0x50
:: 50, 60-5F-42-CB-1C-4F-9E-E9-23
Received BURST_DATA_0x50
:: 50, 20-C2-9F-DB-1C-04-24-C2-4F
Received BURST_DATA_0x50
:: 50, 40-DB-1C-B0-12-B0-C7-B0-12
Received BURST_DATA_0x50
:: 50, 60-14-C8-5F-42-D2-1C-4B-9F
Received BURST_DATA_0x50
:: 50, 20-08-2C-C2-43-D2-1C-B2-D0
Received BURST_DATA_0x50
:: 50, 40-10-00-00-07-B2-D0-03-00
Received BURST_DATA_0x50
:: 50, 60-00-07-B0-12-FE-D5-B0-12
Received BURST_DATA_0x50
:: 50, 20-50-D0-CF-3F-C2-93-DB-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 20-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 40-00-00-00-00-00-00-00-00
Received BURST_DATA_0x50
:: 50, 60-00-00-00-00-00-00-00-00
[/size]

Please help me!!

Thank you.

11 February 2014 03:32 PM #1

usamak Sr. Member

Total Posts: 156

Joined 2013-01-07

PM

Hi,

Could you verify that the arguments being passed to the dll through delphi are the correct size?

Also, is the content of the first 16 bytes correct?

12 February 2014 12:54 AM #2

orse Newbie

Total Posts: 8

Joined 2012-11-16

PM

Hi,
thank you for the fast reply.

Yes, the packet counter is a word ( 16 bit unsigned) .

12 February 2014 01:38 PM #3

usamak Sr. Member

Total Posts: 156

Joined 2013-01-07

PM

Hi,

I tried running the ANT_SendBurstTransfer using the DEMO_DLL project available in the ANT_Libraries solution and it runs fine.

If I run the demo code:

{
            // Send Burst Data (10 packets)
            UCHAR aucTempBuffer[8*10];
            
            for (int i = 0; i < 8*10; i++)
               aucTempBuffer[i] = i;   
            
            ANT_SendBurstTransfer(USER_ANTCHANNEL, aucTempBuffer, 10);
            break;
} 

The slave receives:

Received BURST_DATA_0x50
  :: 50, 00-00-01-02-03-04-05-06-07
Received BURST_DATA_0x50
  :: 50, 20-08-09-0A-0B-0C-0D-0E-0F
Received BURST_DATA_0x50
  :: 50, 40-10-11-12-13-14-15-16-17
Received BURST_DATA_0x50
  :: 50, 60-18-19-1A-1B-1C-1D-1E-1F
Received BURST_DATA_0x50
  :: 50, 20-20-21-22-23-24-25-26-27
Received BURST_DATA_0x50
  :: 50, 40-28-29-2A-2B-2C-2D-2E-2F
Received BURST_DATA_0x50
  :: 50, 60-30-31-32-33-34-35-36-37
Received BURST_DATA_0x50
  :: 50, 20-38-39-3A-3B-3C-3D-3E-3F
Received BURST_DATA_0x50
  :: 50, 40-40-41-42-43-44-45-46-47
Received BURST_DATA_0x50
  :: 50, E0-48-49-4A-4B-4C-4D-4E-4F 

I would try printing out your arguments before you call ANT_SendBurstTransfer() to make sure they are the correct values you assume.

Also, I noticed you receive 17 packets of non-zero burst data. Do the first 16 bytes have the correct information?. I am not sure how delphi initialises arrays or passes them to C, I would try to verify the data in the array passed to the dll by printing it.

13 February 2014 07:31 AM #4

orse Newbie

Total Posts: 8

Joined 2012-11-16

PM

Hi,

we fixed the problem importing the DLL function using this signature:

type
  UCHAR = byte;
  pUCHAR = ^byte;

....
....
Procedure ANT_SendBurstTransfer(ucChannel: UCHAR; pucData: PUCHAR; usNumDataPackets: USHORT);
cdecl; external 'ANT_DLL'; 

Then the array passed must be a static array.

With this indication the burst comunication works correctly.

Thank you for the support.

ANT Forum

ANT_SendBurstTransfer dll command