Recent content by haxor489

  1. H

    What You Need to Know Before Repurposing an iPad Digitizer for Experimental Use

    I figured as much but I've seen quite a few off brand digitizer replacements for these devices that you can just plug in and have work. It's certainly not impossible to figure out so some one must have some knowledge about it. If it came down to it, I guess I could try to reverse engineer it but...
  2. H

    What You Need to Know Before Repurposing an iPad Digitizer for Experimental Use

    I have an old iPad that I don't use anymore and I'd like to re-use the digitizer on it for a little experiment (i.e. rip it out and plug it into my own creation), but I'm having a hard time coming up with any information on the device (pin layouts, data sheets anything). If anyone has any...
  3. H

    Finding Adapters for Surface Mounts and GPS Modules on PCBs

    Yes just one. Also do you know if there is such a thing as a 2mm pitch female to 2.5mm pitch male converter ? Disregard this question I've found adapters. Thank you
  4. H

    Finding Adapters for Surface Mounts and GPS Modules on PCBs

    I have a GPS module whose footprint was placed on my main PCB by accident and need to find a work around. The EMI from the traces and MCU near the footprint for the module make it less than ideal for the specific requirements of the GPS modules embedded antenna. I've never dealt with surface...
  5. H

    TMS320F28035 bootloading to SD card

    Turns out running the program from the SD is incredibly difficult, but luckily CCS's output file .out under the binaries folder isn't the actual program size.
  6. H

    TMS320F28035 bootloading to SD card

    I'm using a TMS320F28035 (TI -piccolo series) microcontroller and it came to my attention that the chip only has about 128KB of flash memory and the binaries for my main program are easily 150KB or larger. So that's where my SD dilemma comes in. The documentation (section 2.1)...
  7. H

    How to store data from an interrupt in C

    Hi I Like Serena! :) I'm not really sure what else to add to that but I'll give it a shot. "Anyway, as a rule, if you pick up data asynchronously, you will need to transfer it to a queue before processing it." That's exactly my intention but the queue or array in which to share between my...
  8. H

    How to store data from an interrupt in C

    It's been a while since I've done some C programming and I can't remember how I should go about implementing this. I have a chunk of memory allocated for storing an array of data. The allocation takes place while the main program is running. The data is being stored to the already allocated...
  9. H

    Java Java: PNGException: Premature End of JPEG File

    I figured it out. Your way is a lot easier, I'm just used to doing things on a much lower level (C programmer). The stream reader would only read what was available() into the array and not the full contentLength() but a while check sum loop read the full content.
  10. H

    Java Java: PNGException: Premature End of JPEG File

    I'm getting this error sun.awt.image.PNGImageDecoder$PNGException: crc corruption at sun.awt.image.PNGImageDecoder.getChunk(Unknown Source) at sun.awt.image.PNGImageDecoder.getData(Unknown Source) at sun.awt.image.PNGFilterInputStream.read(Unknown Source) at...
  11. H

    Senior Design Project Ideas

    a planimeter? I wonder how challenging that would actually be
  12. H

    Senior Design Project Ideas

    Electrical Engineer + Computer Scientist = Computer Engineer (CpE) Thanks for the idea psparky. My professor told us some one proposed that exact idea in the past and he did not allow it simply because it wasn't complex enough as it was just a counter. He did say this would be acceptable if it...
  13. H

    Senior Design Project Ideas

    I'm starting my undergrad senior design course and I'm having a bit of trouble coming up with a good project idea. The team consists of 2 EE's and 2 CpE's. Our project is supposed to take 2 semesters ( design / build and test ). I want to do something challenging and fun. Please share some...
  14. H

    How can I calculate the pressure drop for a vacuum system?

    You might find this useful: http://www.vacuumlab.com/Articles/Creating%20A%20Vacuum.pdf
Back
Top