• State
  • Locked Locked
  • Replies 4 replies
  • Subscribers 83 subscribers
  • Views 444 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TI EVM TMS320F240 and TMS320C50PQ quries

Ramakrishna Prasad54121
Prodigy 30 points

Hi everyone,

 

I am Ramakrishna.

I have resently started the DSP thats available in our fecility.

before switching to the new family of the DSp I plan to do some home work and base work on the DSPs.

Therefore I am trying to program the TMS320C24x EVM, board. using JTAG.

I am finding certain difficulties in understanding the serial port communication, and also the IN/OUT instruction.

We use the emulator, EMU24xWM.

I also browsed through the net but was not successful.

Please let me know the procedure to fix this issue.

  • 0
    Genius 5170 points

    I am surprised to know that you found a 24x EVM !!! 24x days are over and shouldn't be used in any new design and certainly should not be used to learn about this product family. Please utilize one of the member of the latest C2000 family of controllers. You can start with Picollo family or any other c280xxx devices. You will have latest tools, peripherals, development environment and most importantly more support for these newer controllers.

  • 0 in reply to Arefeen
    Prodigy 30 points

    Hi Arfeen,

     

    Thank you for your suggestion,

     

    I understand that the EVm that we have at our fecillity is really old enough.

    It was not in use at our organization since the date the kit has been purchaced.

    There by I dont have any support at the home here.

     

    Now that we have started the DSP and I am the only person involved in the task, I need some input from the people who have worked on this EVM, or related EVM so as to  progress before I get a nw set of device.

     

    So that I donot need much of time in understanding the device, and programing them.

     

     

    The issue I am having is very general.

     

    It is on the OUT instruction.

    That is , I am able to output the data at the address already mapped in the device to the board.

    But I am not able to come accross, how to access the I/O port of the board through the out instruction.

    I am able to see the program running in the Emulator,

     But not able to see the output in the Phyaical world.

     

    I feel there is some address  initialization.

     

    But I am not able to trouble shoot the issue.

     

    please do help me.

     

     

    Thank you

  • 0 in reply to Ramakrishna Prasad54121
    Genius 5170 points

    You shouldn't work with 24x devices .. if you are serious about DSP then please work with the latest devices ... you will have much better experience with lot quicker positive results. Although I worked with 24x years back unfortunately I don't have the bandwidth to help you on this but if you would like to see how a typical 24x project is setup then try downloading on of these old motor control projects based on 24x devices from here

    http://focus.ti.com/mcu/docs/mcuorphan.tsp?contentId=51397

    Goodluck.

  • 0 in reply to Ramakrishna Prasad54121
    Prodigy 30 points

    Ramakrishna Prasad said:

     But not able to see the output in the Phyaical world.

     

     

    What are you expecting to see?  The OUT instruction causes a write cycle on the external address/data bus, using the I/O strobe.  If you put a scope probe on the I/O strobe pin, you should see a short (around 2 clock period) pulse.  That's about all you will see unless the port to which you are writing is mapped to some other hardware.  You should download the C240 reference manual SPRU161D for more info.  Also, SPRA452 Understanding the External Memory Interface may be helpful.