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kenemon

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Posts posted by kenemon

  1. A question about the standalone programmer issue please.

     

    I want to improve my board by adding a programming jumper.

    According to zeke's schema above, he hooks up the jumper to pins 10 and 11.

    Will this work with the G2452? I have seen advice suggesting pins 2 and 3 :?

     

    Also, is there freeware that will enable me to make schemas easily like zekes?

     

    Thanks for reading. KB

  2. Thank you both for listening and caring. I was afraid this was beyond my comprehension, but the last post ties everything together nicely :D

     

    These forums have been the best resource I can find, and has pushed me to learn things I never thought I could understand.

     

    KB

  3. I will try it on my laptop if i cant get it to work after one more try.

     

    What is confusing me is the lack of direction in the post. Using the smartie directions, it calls for the http://lcdsmartie.sourceforge.net/port95nt.exe driver. In the setup, i set the correct LCD, but dont know which driver to choose on the list, or which settings to use. 9600,n,1 is what i understand the LP likes. I understand the code utilizes the USB port, and I am assuming the LP should be in run mode, so it is waiting for data from the USB connection. Does this sound logical?

  4. Hello All. I'm having a little trouble getting my lcd to work. It flashed on as i scrambled through the example, but i lost it. Can somebody explain the sequence please. I wired it up, compiled and flashed the c code. I have the nice "hello" but i cannot seem to interface with the software. Following the smartie directions it needs port95nt.dll. Is this what I should be doing?

     

    Thanks. KB

  5. The nightmare is over. After finally making a plan and working out a new board, being careful with everything and checking it twice, I can see the light. P1 resistors enabled. The help is greatly appreciated, and the button debounce works flawlessly (no extra ints). Resistors enabled on P1.0-P1.3.

     

    Working with those connected PCBs it not worth it in my opinion, although the product is very appealing to the eye. I will improve on the board with a jumper for programming next..... : :)

     

     

    post-1413-135135503294_thumb.jpg

  6. Here are some late night drawings, I will work on some better ones tomorrow... Thanks

    Using MSP430G2452, detail per aforementioned wiki example

     

    Anyone have a schematic program that is free? PCB artist was ok, but schamas were difficult to understand for me :roll:

    J1=button harness

    J2=LED Array

     

     

    post-1413-135135503008_thumb.jpg

     

    post-1413-135135503284_thumb.jpg

     

    post-1413-135135503012_thumb.jpgpost-1413-135135503017_thumb.png

  7. I am going to try and enable the resistors. A while back this helped me with a bouncing problem. I have hardware debounce now, but I am going to give it a shot.

     

    I have checked off everything on your list zeke. I have been programming it on the LP and then hooking up my wiring harnesses to the LP to test it- working fine, I move the chip to the PCB. I am thinking now the problem is with my buttons. I based them on the demo: http://processors.wiki.ti.com/index.php/MSP430_LaunchPad_PushButton

     

    It must be the debounce circuit. Curious why it works fine on the LP and not on the PCB :cry:

     

     

    thanks again you guys!

  8. thanks zeke, that Is a great reference. All seem to agree on the cap, which i will add momentarily. Can you tell me what OR means please. I am going to include a jumper as you show so that I do not need to keep switching the chip out (it was on my todo/tofigureout list :P )

     

    P.S.- how do you put the images directly in the post. I tried the button (Img) above, and put in the link, but it didn't do anything.

     

    Thanks again. Ken

  9. As many nightmares evolve, I find myself alone in a state of terror with my MSPG452 project.

    I look to you guys for some comfort :o

     

    I have a basic input/output project that functions perfectly on the stock launchpad...

    The code is not the issue, the problem lies in my lack of EE experience...

     

    I have been working at this for about 6 months (learning and getting favors from my friend the programmer) :

     

    https://docs.google.com/leaf?id=0B0GvwGrWV7TpMmYxZTJiMWYtODFhYy00MjBhLTg0ZmMtMjEzYTk0OTQzZDk2&hl=en_US&authkey=CKuFiLsL

     

    I picked up some expensive FR4, they are pretty and have "cuttable" connections between all the positions. A little bit of a pain at first, but I can appreciate the idea- less jumpers and solder. You need a brand new utility blade for starters, and a good layout in mind. You can see an issue with the couple of wires on the face.

     

    https://docs.google.com/leaf?id=0B0GvwGrWV7TpMmNjZTM4M2ItYzMzMy00ZDQwLTgxODUtZmViNWY2ZmNiMTU0&hl=en_US&authkey=CIXgxdsG

     

    this progressed to a much prettier prototype (took about 2 hours):

     

    https://docs.google.com/leaf?id=0B0GvwGrWV7TpYjVmNmM3NzMtZGFmOC00NzMzLTk3OGQtNjI3YmUwNTM3YTUx&hl=en_US&authkey=CL3Yj4QD

     

    It was heartbreaking when it did not work, nothing happened. Then Ken Finnegan alerted me somewhere in his many posts that the standalones need to have the reset taken up with a resistor or it will continually reset. Thanks Ken (great name by the way). Done, and i had some flashers.

     

    Unfortunately, the inputs and the outputs are not working like on the LP. I have traced all my connections, and checked for shorts and gaps, and found nothing. I am able to hardwire the inputs, using a jumper, a switch, or my finger, but for some reason, the P1.0 input will not trip the interrupt now- but all the others work (P1.1-P1.3). Your comments are welcome, please!

  10. A while back there was a problem with the newly issued G2 chips. It ended up being a software issue which was fixed eventually. As I waited, I experimented with other chips and formats, trying to get one of my ideas going. Here are some pictures of the TSSOP adapter I made to program them with the launchpad. I ended up using it recently to miniaturize my project, providing a standalone MCU platform with the TSSOP G2452. My soldering has improved, please don't comment on that. I have named it "Tron" for obvious reasons.

     

    https://docs.google.com/leaf?id=0B0GvwG ... 2&hl=en_US

     

    KB

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