EK-TM4C123GXL as Debugger

Jacob Lively

I have found this post, which asks my initial question, and is answered perfectly. I am a newbie, and have instead TM4C123GH6PM, I have also the board EK-TM4C123GXL. I want to program my MCU with this launchpad. I have read this.

Now I have understood that this will give me some pins out, and the wiki says RXD and TXD are optional. Are they optional for my processor, too? Do I need to connect them on the processor, or that optional means project dependent optional?

Also I wasn't able to find that power jumper, by the power indicating LED. Where is it exactly on my Launchpad?

And, I didn't get the thing about the ground, that, there is the GND female header among the GPIO pins on the launchpad, connecting that to a common ground is enough, or do I need an extra header to be soldered to the prescribed holes?

Finally. how do I work this out? If I do the right connections, can I just program it, like I was programming my Launchpad? I am using Keil for programming the Launchpad, and if I connect the processor's pins to the Launchpad this way, and just "Download" using Keil, am I done?

Thanks in advance, and sorry for silly questions.

over 11 years ago

0 Amit Ashara over 11 years ago

TI__Guru**** 244440 points

Hello Jacob,

The following would help. In the image the GND is the bottom left and right of the board marked with the "GND" symbol. The two probe hols next to the rightmost yellow wire are the RXD and TXD for UART.

1. Keep the Switch in Debug Mode

2. Remove the VDD Header

3. Connect the JTAG Wires as shown in the center of the board.

I have attached a JPG File for reference

Regards

Amit

0 Janos over 11 years ago

Intellectual 570 points

Hi Jacob,

adding to Amits answer (@Amit, you seem to have missed the image):

Jacob Lively said:
Now I have understood that this will give me some pins out, and the wiki says RXD and TXD are optional. Are they optional for my processor, too? Do I need to connect them on the processor, or that optional means project dependent optional?

Rx/Tx are project dependent. The Launchpad is recognized as two devices by the hardware managaer (windows), the actual ICDI debug interface and a virtual com port (VCP). If you want to use UART over this VCP, then connect Rx/Tx to your target.

Jacob Lively said:
Finally. how do I work this out? If I do the right connections, can I just program it, like I was programming my Launchpad? I am using Keil for programming the Launchpad, and if I connect the processor's pins to the Launchpad this way, and just "Download" using Keil, am I done?

Yes. If you connect your application/target as described in the wiki, then you will simply replace the target on the launchpad with your target - that's it! (the "VDD" jumper cuts the power to the launchpad-target).

Jacob Lively said:
Thanks in advance, and sorry for silly questions.

Now that is being silly :-D. Keep asking - the more people ask, the more people will find help!

Cheers,

Janos

0 Amit Ashara over 11 years ago in reply to Janos

TI__Guru**** 244440 points

Hello Janos,

I could still see the image. A search on the forum would also bring up a similar thread

Regards

Amit

0 David Hubbard over 11 years ago in reply to Amit Ashara

Intellectual 795 points

Hi Amit,

I can't see the image you attached. I did "View Source" on the page and came up with this link:

https://e2e.ti.com/resized-image.ashx/__size/550x0/__key/communityserver-discussions-components-files/176/0407.20140319_5F00_173150_5F00_1.jpg

When I click on the link I get "403 - Forbidden: Access is denied".

0 Janos over 11 years ago in reply to Amit Ashara

Intellectual 570 points

I've seen the picture here before. Should go right into the wiki, actually...

http://e2e.ti.com/support/microcontrollers/tiva_arm/f/908/p/319187/1160868.aspx#1160868

0 Amit Ashara over 11 years ago in reply to Janos

TI__Guru**** 244440 points

Hello Janos,

Yes that is the image

Regards

Amit

0 Dhanush Nair over 11 years ago

Expert 1360 points

HI,

Jacob Lively said:
I am using Keil for programming the Launchpad, and if I connect the processor's pins to the Launchpad this way, and just "Download" using Keil, am I done?

I want to program my TIVA board from keil. I have EK-TM4C123GXL board for programming. What configuration should i made in Keil.

Thanks,

Dhanush

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EK-TM4C123GXL as Debugger