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Rickta59

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Everything posted by Rickta59

  1. I'd like to be able to buy some msp430g2553in20's for a $1.00 just like they advertise on the TI website. The real price seems to be closer to $3.00. -rick
  2. You can look at the datasheets, or the functional block diagrams, or use GRACE. When a device only contains one instance of a peripheral sometimes they don't bother to add the instance number. The g2231 only has one timer so they don't say Timer0_ .. they just use Timer I like to look at the diagrams as I'm a visual person: msp430g2231 - functional block diagram msp430g2553 - functional block diagram
  3. Did you have a chance to jot down your notes? Or is it posted someplace I missed? -rick
  4. I think if you create a simple project in CCS and then build it and look in the output directory there will be a makefile that can be used as an example. -rick
  5. A good place to start is to install GRACE. http://www.ti.com/grace It provides a GUI for all the different settings with guard rails to keep you from hurting yourself. -rick
  6. : ) unfortunately no one seemed to pick up on my hint of getting the code to work with msp430-gcc. I gave it a try. You probably need a uniarch version of msp430-gcc to get the #include working: ; ; Copyright (C) 2011 Kevin Timmerman ; ; This program is free software: you can redistribute it and/or modify ; it under the terms of the GNU General Public License as published by ; the Free Software Foundation, either version 3 of the License, or ; (at your option) any later version. ; ; This program is distributed in the hope that it will be useful, ; but WITHOUT ANY W
  7. You should take a look at the C software UART code I did. http://www.43oh.com/forum/viewtopic.php?f=10&t=761 it should work with your chip. I think it is readable and well commented. -rick
  8. You are using the wrong chip. You should try an msp430g2553. Those should cost about $2.00 and have 16k of flash and a hardware UART. Most of the other G series chips are more like an ATTiny chips and lack a hardware UART. -rick
  9. I didn't actually make any changes to that file. However, I went ahead and added it to the gist at github to be complete. https://gist.github.com/1057857 Thanks, -rick
  10. I don't think it would be possible to display characters on the calculator I found. It is has 7 segment per digit not 14. I think it has a TN LCD display. It looks like the last one shown on this page ( the 2600D model ) http://www.rskey.org/~mwsebastian/reviews/dollar_leworld.htm The picture shows the insides of the calculator and you can see the 26 pins that connect to the LCD display from the IC. The display has 8 digits with decimal points and the letter M (Memory?). I haven't figured out the pinouts yet. I did find this app note which discusses how to interface to a TN display
  11. putty, you won't be unhappy.
  12. That worked great. Thanks gordon! On my linux box, I ran that command on my gcc compiled elf file then switched back to Windows 7 and successfully used this WIN32 command: C:\>MSP430Flasher.exe -n msp430fr5739 -e ERASE_MAIN -w framdemo.hex to erase and write the hex file I generated on linux. Nice! I guess this also paves the way for people who want to use msp430-gcc and could never get mspdebug to work under windows, I count myself as one of those people.
  13. OK I just tried this, well somewhat, on Windows 7. I was able to use it like this: c:\ MSP430Flashher.exe -n msp430fr739 It seemed to recognize the device. Sadly, I didn't have a HEX file to feed it. -rick
  14. The latest uniarch msp430-gcc does support the msp430fr5739. However, at this time, mspdebug doesn't support it. I have exchanged emails with Daniel Beer, primary developer on mspdebug, and he has indicated he is already working on this. I'm hoping this welcome addition will appear soon. There might be another option. I just noticed that TI offers a command line win32 only program flasher with source code on the their website: http://processors.wiki.ti.com/index.php/MSP430_Flasher_-_Command_Line_Programmer It might be possible to run this using WINE under linux. I haven't eve
  15. Opps, forgot to thank gordon and jsolarski for the Makefile post, i used it here. Thanks guys!
  16. Once the new version of mspdebug comes out with support for the MSP430FR5739 chip which is in the FRAM experimenter board, you are going to want something more than just a blinky program to see if it works on your system. I modified the User Experience Code Demo code for the MSP-EXP430FR5739 so that it compiles with the latest msp430-gcc. Find it here: https://gist.github.com/1057857 -rick
  17. Nice work! What are the chances of a VGA version of this. I have a couple of those that could be put to use but no extra TVs. -rick
  18. you could just buy some of these: http://www.pololu.com/catalog/product/1701 I have some and I like them, good quality connectors. -rick
  19. Seeing as SBW is really only 2 pins (TEST / RST ) I'm not sure if it worth the effort. That being said, on boards I've been building I'm using the FTDI cable pin outs as my standard so at least my serial ports are somewhat standard. With the launch pad I use jumper wires to get the RXD/TXD/VCC/GND. It lacks the RTS/CTS signals ( most software isn't using hardware flow control ) JP1 +---+ | 1 | GND/BLACK | 2 | CTS/BROWN | 3 | VCC/RED ( 5v with FTDI cable 3.3 Launchpad ) | 4 | TXD/ORANGE | 5 | RXD/YELLOW | 6 | RTS/GREEN +---+
  20. First, let me say "Great Job"! I found this site today http://www.asciiflow.com might fit the bill for doing simple circuits like the TI examples
  21. I should mention that the code above should work fine with any value line chip that has a USI SPI peripheral ( msp430g2231 etc ... ) not just the msp430g2452 mentioned. -rick
  22. I came across the Microchip 23K256 Serial RAM device a while back. It seems to fit the bill when you need more RAM but don't want to spend a lot of money to get it. These chips are inexpensive, (about $1,50 at time of this post 06/05/2011) and hold 32K worth of data. You access the memory using SPI. You can even put multiple 23K256 devices on your SPI bus and get even more buffer space. The arduino world already has a couple of libraries to access these devices. I adapted one of these to work with both CCS and the uniarch compiler. I used GRACE to help me configure the msp430g2
  23. This is a great thread. So what changes do I need to make to get this to compile with msp430-gcc? -rick
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