Jump to content

sjt

Members
  • Content Count

    58
  • Joined

  • Last visited

Community Reputation

22 Excellent

About sjt

  • Rank
    Star Raider
  1. sjt

    Mikel Labs

    I still haven't found out much about Mikel Labs. I did find that the owners name is Tom Mikel. But I can't find any further info on him or the company he started. I now have a rs232 stand alone unit he made.
  2. http://www.99er.net/99erbbs/showthread.php?tid=88
  3. Sarcasm, Tursi I've been out of this for a while, (a few years) sorry I'm not familiar with AVR cartridge cards created to simulate groms. I'm only familiar with eprom, supercarts and multicarts along with Gazoo created adaptations to run on them Obviously you Do know better than I, since my assumption is you wrote the software that allows this grom emulation board to function.... Please explain further for those of us not around while this development was made. Would a single Ubergrom cartridge work with others in a widget? or not.
  4. Anyone familiar with the products produced by Mikel Labs for the 99/4a. There was a RS232 stand alone and maybe a expansion system?
  5. Tursi would be the authority on a UberGrom card and how it might react in a cartridge expander. Maybe he can explain why it wouldn't work.
  6. As Ksarul says ...just use 47K or resistors in series or parallel to get close.....
  7. Enjoy!, have fun. To help you, here are the details on how Navarone made the widget. They used a 3 position double contact switch. They switched the following lines: One side of the switch, connected Rom Low to each of the different sockets 1-3 The other side of the switch, connected -5v to sockets 1-3 at the same time. All pin 19 (Vdd +5) were connected to each socket through a 50K resistor. All remaining pins are daisy chained to each socket. The reset button connects GND to Vdd -5 The board I'm attaching a photo of was made sometime around 1984 or later in Hong Kong. Parts list. 3- Leader EG-2540-36 Sockets 3- 50K resistors 1- Plastic button with carbonized insert (reset button) 1- Plastic slide sw with 2 seperate contacts Misc: top and bottom covers, pcb, screws That's all there is to it.
  8. You want to use a temperature controlled soldering station. There are many out there. Some digital some not. The tips are important too. Some irons like weller wtcp irons, the temperature is controlled by the tip you install. Tips are sold in different end styles and sizes depending on what you are working on. Normally 700 deg is a good general one for soldering. Conical shape is common. Obviously a tip to work on a smd device would be different as compared to a tip to work on a tube radio. Using anything less than the above is best left for wood burning projects. And yes enough heat for the solder to flow smoothly to both metals, and that's all. With experimenter boards it's easy to lift pads. The biggest mistake people make is trying to "paint" solder. The iron tip is at the connection point, then the solder is applied. One more thing, the best way to remove parts and preserve boards is to use a vacuum desoldering station. A solder "sucker" will work for a lot of things but try removing parts from a board with plated through holes, double sided . Old parts and old boards may benefit from flux as well Hope this helps Steve
  9. If I'm understanding what you are doing.....you want to make a push button widget? The push button part of your project is a bit of an over kill. With support circuitry it would be possible to use a single push sw to select different cartridges. Why not just make a board with daisy chained connectors and use a conventional slide switch along with a reset button. You then switch cartridges and do a reset.... this works, Naverone sold a lot of them. I think there is enough room for 4 cartridges. Not with advanced switching (4 position slide sw?)
  10. Have been away from the TI for a while but read the thread here about ti speech. It was something I always wanted to try my hand at and finally did, time consuming but fun. Attached is a 8k cartridge file. The cartridge speech data was created with Qbox. It will run on win994a once it's turned into a cartridge file. It can be burned to a eprom or loaded into a supercart. Steve spchdemo.bin
  11. As you've found, no it does not alter the produced data. Unfortunately it doesn't work, I have only used it to get an idea of how i might alter the original sound file to produce a more pleasing result by pre-processing the audio file . I take the produced data and drop it into either an assy program or convert it to a merge format for xbasic to test what it will sound like on the actual hardware. But it is time consuming. Win99 will produce speech, most of the time...there is some sort of timing issue, but can produce a good representation. On the hardware it will be slightly different in volume and speed (faster)
  12. Hi Tursi, Yes, that is what I was playing with. I got a firecracker interface and wireless receiver for under $15 It should work on the TI. The serial data is needed to address the wireless receiver. So you do have to send serial data. My understanding is the serial data acts like a key when sent in specific sequence altering the DTR AND RTS lines and is recognized by the wireless receiver. The data is very specific that needs to be sent to create the proper key. There is a header and a footer which don't change and then a 16bit sequence that changes based on the device to address, and if on or off or dim etc. I have a PC basic program which works perfectly. Steve
  13. The 40bit string I was referring to would be used to control a X10 rs232 wireless interface. I did see some mention of this in some old messages. I couldn't find any messages indicating that there was success in communicating with it using the TI I thought about using the method Lee suggests, I tried using the win99 emulator but I don't think I can access the rs232 com 1 port that way. (on the pc) Has anyone had success with communication with what is commonly called the x10 wireless firecracker using the TI. It uses a 16bit header+ 16bit of control data + an 8bit footer It's pretty easy to communicate with it using qbasic on the pc. ( that's where the com port info came from) The Header is 11010101 10101010 The data for (house code A1) is 01100000 000000000 The Footer is 10101101 These strings combined together (40 bits) form the complete command to activate the wireless receiver on the channel indicated. The above would turn on any X10 device on house code A1 or those connected to the wireless x10 receiver directly. I'll have to try it on the real (TI) hardware. I think i have a RS232 tester somewhere I can put in line (leds showing communication) If Xbasic doesn't work, using "call load" how would you directly access the rs232 port on the TI? Wouldn't you have to turn on the DSR for that card? Somewhere someone mentioned something about using the joystick port? Steve
  14. Xbasic programmers out there. Is there an easy way using xbasic to send a binary string to the com 1 port, string len 40 bits. Can it be sent using open rs232 and print port commands? Data such as "1010101....." etc I need to send a 40bit bin string and there is no POKE in xbasic correct?, to directly access the com port at h3fC (com1) Steve
  15. All eprom programming software should have a blank check.Select that first Some eproms that seem faulty can be saved sometimes but filling the chip with FF if the software has that option as well. Then erase it and try again.
×
×
  • Create New...