Asking about LM3S811 Arm Cortex-M3 Evaluation Kit  - Page 1
Forum section: electronics / general

author: BravoV
author_rank: Super Contributor
timestamp: June 02, 2012, 06:25:33 am
content: A friend of mine just sent me this ARM cortex-m3 evaluation kit to play with, and it came with only the jtag cable and nothing else. Though he said originally it was bundled with a program CD and an USB cable, but he lost them.I've spent my time at TI website downloading & reading lots of this cpu, eval kit and it's supporting documentations, and when it comes to the physical appearance, the current evaluation kit has some differences and I can not find the revision documentation on this eval kit.Are they the same thing ?Took a shot of my board (top pic) and the one from the eval kit documentation downloaded from TI, put those purple arrows show those differences.

author: rsjsouza
author_rank: Super Contributor
timestamp: June 02, 2012, 12:01:15 pm
content: Hi,The top board was manufactured for Luminary Micro (probably before the acquisition by TI). The current board at TI website is Rev B, therefore I imagine this one is Rev A.Functionally I think the two boards are identical, but the schematics may have changed a bit.All in all, I found a user's manual for Rev A at the page below:http://www.cs.put.poznan.pl/wswitala/download/pdf/811EVBK.pdfCheers,Rafael

author: BravoV
author_rank: Super Contributor
timestamp: June 03, 2012, 09:01:48 am
content: Rafael, thank you so much, that is exactly what I was looking for, great finding.Looks like TI dumped all old Luminary Micro's documentations after the acquisition.

author: metalphreak
author_rank: Frequent Contributor
timestamp: June 03, 2012, 04:16:34 pm
content: I have the ethernet series version of this kit so I'm assuming this is similar:The debug/JTAG is all done through USB and the JTAG header is for one of two things: You can use the USB JTAG interface for a different external board (hey free JTAG programmer!) or you can use your own external JTAG device.And yes, TI bought out Luminary micro and rebranded everything. You'll find a lot of the schematics, diagrams, and photos on the TI site still have the luminary micro logo on them!

author: BravoV
author_rank: Super Contributor
timestamp: June 03, 2012, 09:21:49 pm
content: metalphreak, thanks, didn't know that it can be used as jtag programmer too, cool.

author: rsjsouza
author_rank: Super Contributor
timestamp: June 04, 2012, 02:20:32 pm
content: BravoV,I tried to find this "Rev A" manual at TI website with no luck.However, I found something else that may help you in the future. The forum thread below will help if you intend to use the OLED display someday.http://e2e.ti.com/support/microcontrollers/stellaris_arm_cortex-m3_microcontroller/f/471/t/64163.aspx

author: metalphreak
author_rank: Frequent Contributor
timestamp: June 04, 2012, 03:23:19 pm
content: YepSee page 18 of this:http://www.ti.com/lit/ug/spmu030b/spmu030b.pdfAlso found this:Revision Date Description0 Aug 2, 06 Release for Rev 0 PCBA Aug 18, 06 Release for Rev A PCB, First Production ReleaseB Feb 2, 07 Add 5V break-out pad.C Jul 17, 09 New RIT display, supports Serial Wire Out (SWO)Looks like the only major change is to a different OLED lcd. StellarisWare package should have the 'driver' for both.Seeing as how your board has no 5V pad (bottom left) I would say its a Rev A.

author: BravoV
author_rank: Super Contributor
timestamp: June 05, 2012, 06:20:26 pm
content: @Rafael, thanks again, that information will keep me from scratching my head if that happened.I'm totally noob when it comes to this arm mcu platform, only done few simple atmel avr 8 bit projects, it was a chit-chat with friend on 8 bit mcu, then suddenly he said "real man use Arm mcu, here something to play with" and here I am.@metalphreak, where did you get that list from ? And thanks, yeah, just realized and spotted the jtag programmer feature. <thumb up>

author: metalphreak
author_rank: Frequent Contributor
timestamp: June 06, 2012, 01:26:51 pm
content: It's in the bottom right corner of one of the schematics in the datasheet/PDF(page 28 in the link in my last post. "bottom left" if you rotate it the right way)