Spartan-6 Industrial Video Kit

[Juergen]

Hi Mario

I tried to port a PLB-based IVK design (a slight modification of Camera Frame Buffer demo) from ISE 13.1 to 13.3. I could generate the bitstream in XPS 13.3 and the SW in SDK 13.3. However, on the IVK target the SW hangs in routine fmc_iic_xps_IicRead at line

} while (StatusReg != (XIIC_SR_RX_FIFO_EMPTY_MASK ....

So it looks as there is something wrong with the IIC access to the FMC module. 

Can you give me a hint on what the problem could be? Is it related to the newer versions of EDK IP blocks available in 13.3?

Regards,

Juergen

[AlbertaBeef]

Juergen,

This could be related to driver updates.

In order to test this, comment out the "FMC Validation" code, but keep the call to fmc_ipmi_enable( ) ...

#if 0

   // FMC Module Validation

   if ( fmc_ipmi_detect( &fmc_ipmi_iic, "FMC-IMAGEOV", FMC_ID_SLOT1 ) )

   {

      fmc_ipmi_enable( &fmc_ipmi_iic, FMC_ID_SLOT1 );

   }

   else

   {

      fmc_ipmi_disable( &fmc_ipmi_iic, FMC_ID_SLOT1 );

      exit(0);

   }

#else

   // Skip FMC Module Validation

   xil_printf("Skipping FMC Module Validation ...\r\n" );

   fmc_ipmi_enable( &fmc_ipmi_iic, FMC_ID_SLOT1 );

#endif

Let me know if your design works with this modification.

Regards,

Mario.

[Juergen]

Mario,

Yes, it works!

I saw that there was a driver update for the xps_iic module between 13.1 and 13.3. I think it must be related to this, since xps_iic is the only module involved that had an update.

Although I dont understand exactly why fpGpoRead still works with 13.3 and fpIicRead doesn't, I appreaciate your fast support very much.

Thanks a lot,

Juergen

[AlbertaBeef]

Juergen,

Would you be willing to share your 13.4 project for the benefit of the community ?

I will not be updating the PLB-based designs.

Instead, I will be moving to AXI-based designs.

Regards,

Mario.

[Juergen]

Sure, I will be happy to share.

The design is part of a real-time video processing lab I am currently preparing here at Lucerne university. I could even share the lab material, once it is in a reasonable state.

What files of the XPS / SDK projects do you think are useful? And where can I post it? Here?

Juergen

[AlbertaBeef]

Juergen,

Please post on the forum.

You can use the "Attachments" option in the "Post Message" form to include a zip file.

Regards,

Mario.

[Juergen]

Hi Mario

I attach an example IVK design for EDK 13.3. The design is based on the Camera_Frame_Buffer_Demo with an additional 2D-FIR block.

The zip contains the XPS and SDK projects. I removed the IVK_Repository for size reasons. This directory must be added at the top-level in order for XPS and SDK projects to compile.

Regards,

Juergen

[AlbertaBeef]

Juergen,

I found the issue with the fmc_iic_xps_IicRead routine.

I updated the code based on a more recent version of the xiic_low_level_dynamic_eeprom_example.c example from Xilinx.

In summary, the issue was caused by the fifth parameter to the XIic_DynSend( ) function call.

By changing this parameter from XIIC_REPEATED_START to XIIC_STOP, the issue was resolved.

   int fmc_iic_xps_IicRead(fmc_iic_t *pIIC, Xuint8 ChipAddress, Xuint8 RegAddress,

                                            Xuint8 *pBuffer, Xuint8 ByteCount)

   {

      Xuint8 ReceivedByteCount = 0;

      Xuint8 SentByteCount = 0;

      Xuint8 StatusReg;

      XStatus TestStatus=XST_FAILURE;

      int cnt = 0;

      fmc_iic_xps_t *pContext = (fmc_iic_xps_t *)(pIIC->pContext);

      // Position the Read pointer to specific location.

      do

      {

         StatusReg = XIic_ReadReg(pContext->CoreAddress, XIIC_SR_REG_OFFSET);

         if(!(StatusReg & XIIC_SR_BUS_BUSY_MASK))

         {

            SentByteCount = XIic_DynSend(pContext->CoreAddress, ChipAddress, (Xuint8 *)&RegAddress, 1,

                                         XIIC_STOP);

         }

         cnt++;

      } while(SentByteCount != 1 && (cnt < 100));

      // Error writing chip address so return SentByteCount

      if (SentByteCount < 1) { return SentByteCount; }

      // Receive the data.

      ReceivedByteCount = XIic_DynRecv(pContext->CoreAddress, ChipAddress, pBuffer, ByteCount);

      // Return the number of bytes received.

      return ReceivedByteCount;

   }

The new fmc_iic_sw_2_02_a driver can be found in the 14.1 version of the camera design in the following forum post:

   http://community.em.avnet.com/t5/Spartan-6-Industrial-Video-Kit/Need-IVK-13-4-EDK-Demo/td-p/4959 

Regards,

Mario.