AMC1210 further Evaluation with NI DIAdem / LabVIEW?

Hi Philipp,

I'm not aware of any software that is readily available to replace the AMC1210 code.  You may be able to use a device like the NI USB-8452 to communicate with the AMC1210 and AMC1204, but you would need to provide your own VI.  I'm not sure if that instrument could take the bit-stream directly from the AMC1204 modulator or not.

Hi Philipp,

You would not necessarily have to develop your own board.  If you have an FPGA development board, you can construct a filter there.  If you want to run the AMC1210 on Win 7, take the .inf file from the attached archive and put it in your c:\windows\inf directory.  The source for the AMC1210 uses CCS for the processor and LabVIEW for the GUI, so it would not be that easy to re-work on your own.

6724.AMC1210MBEVM.zip

Hi Philipp,

In "another life" I wrote the firmware for the Stellaris controller on the AMC1210MB-EVM and I thought I would offer some insight in this thread.

It is possible for you to program the controller via the JTAG connector on the top right of the board. There is no on-board emulator though so you'll need to acquire a solution to interface the controller if you want to step-through code.

The limitation on acquisition size with the EVM is caused by a few things:

• The AMC1210 interface is not the most friendly interface to a typical MCU. The timing / structure of the parallel bus just doesn't pair up very well with the peripherals commonly included on the MCU. The Stellaris controller is no exception and subsequently the interface is "bit-banged" through GPIO. While I did use a few tricks to accelerate actuating the bus - it's still not pushing the timing limitations of the AMC1210 interface and most importantly it's using core clock cycles to get it done so this action uses a lot of bandwidth from the controller making tasks like shipping the data out via USB or storing it to a EEPROM challenging to implement depending on your sampling rate goals.
• There is no on-board memory included on the board so your best solution is to acquire data and then attempt to send it back to the PC via USB. Again, depending on your sampling rate goals this may be plausible for you to realize but it's going to be a challenge for most data-rates.

There are alternatives - a few other MCUs include the AMC1210 IP as an integrated peripheral set. You could use one of these device's peripherals with DMA and on-board memory or USB connection to realize this transaction with less pain, in my opinion.

As Tom mentioned the secondary alternative would be to use an FPGA to communicate with the AMC1210 - at least this way you do not also have the stresses of implementing the digital filter yourself in the FPGA.

The tertiary option would be to directly interface an FPGA to the bit-stream from the delta-sigma modulator itself.

Hope this helps.

Philipp,

IP means intellectual property. The implementation isn't exactly the same as the AMC1210 but the core concept of the device was replicated on some micro-controllers as peripherals.

The TMS320F28377D is one of such devices. There is an "experimenter kit" available for that part that you could use. MSP430F67791 is the MSP430 version but there is no EVM that I'm aware of available. There may be another MSP430 that is pin-to-pin compatible with this one though that does have an evaluation platform that you could leverage. I would suggest you post on the MSP430 forum to look into that path though as I'm not as familiar with their offerings.

Philipp,

TMS320F28377D replaces the AMC1210, you wouldn't need to create a board for the AMC1210 in addition to the board for the MCU. There's also an Experimenter Kit for the TMS320F28377D that you could use instead of making your own board.

Nonetheless, if you want samples of the AMC1210 I can procure that for you. We will need to take this discussion offline so you can share an address to ship them to.