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nemetila

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nemetila last won the day on August 19 2013

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About nemetila

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    Hungary
  1. Thank you for your answer. Paying with paypal is ok for you?
  2. I would buy the STM32F4 Discovery Kit. Can you ship it to Hungary?
  3. Do you still have the STM32F4 Discovery Kit for sell?
  4. Hi @@bluehash, Have you given them away?
  5. nemetila

    MSP-EXP430FR5739 Accelerometer demo with PC GUI

    It should run, I have just tested it a minute ago. I can share the source but I have very limited C# skills, so the code is ugly. Windows app project files: ACC Demo.zip CCS project files: CCS.ZIP
  6. I discovered a very strange behaviour of my BMP180 module. When it gets direct sunlight it immediately (within 1sec) reports higher altitude, and the reported temperature is also continuously increasing (the device becomes hot in reality, too). When I put it in the shadow(indirect sunlight) or cover it with a paper, it immediately sends the correct altitude, and the temperature starts decreasing. In the house (artificial light) or in darkness it works correctly. Example: altitude in shadow: 106m / temp: 18
  7. nemetila

    LCD backlight off

    There are 3.3V and 5V type LCDs. If you use 5V type LCD, the LCD LED forward voltage might be higher than 4V (for example 4.1V). This is higher than your LaunchPad Vcc voltage (3.4V). I think It wont work unless you get 5V from the LauncPad or from an external supply. Backlight on/off (with 3.3V LCD) an example: connect: LCD_VLED --> Vcc connect: LCD_VLSS ---> current limiter resistor pin(1) connect: current limiter resistor pin(2) --> N_MOSFET(logic level type) drain connect: N_MOSFET(logic level type) source --> Gnd connect: N_MOSFET(logic level type) gate --> any MSP430 I/O pin This solution might be improved with additional resistors.
  8. There is a promotion on the new Elecrow website. There are 3 ways ($6) to join in this activity for new members of Elecrow website and 2 ways ($4) for customers who already have Elecrow account. register as a new customer in Elecrow; (+$2) share their blog to one of the social media such as facebook, twitter, or google+; (+$2) share their blog to a discuss platform such as the forum; (+$2) Here are the details: link. The above promotion is limited in time (31 May 2014), but they have a not time limited promotion too: write a review ($0.2) or/and upload images ($0.3) or/and videos ($0.5) of your order (if you do all of them, they will give the highest one, for example: if you write a review and upload an image in the same time, you will get 30 points instead of 20+30 points).
  9. nemetila

    Using Stellaris Launchpad as a Thermometer

    Hi, I'm sorry for my late reply and the unavailable link. I have updated my first post with the new code file link: https://copy.com/4DkJpd4O49ky
  10. nemetila

    Ripped off debug USB port, solutions?

    The marked pin (USB_ID Pin4) is not connected, you can check it in the LaunchPad schematic.
  11. nemetila

    Ripped off debug USB port, solutions?

    The micro USB's ID pin has no electronic function, check which pin was ripped off. The other four pins (VG, D-,D+, G) are required and there are two big GND pins for keeping the connector mechanically. I have teared off twice my Stellaris LP debug USB connector, fortunately without any pad being damaged. I could resolder it carefully with a soldering iron, some desoldering copper and some flux, despite I'm not really good with hands. I took photos using my camera with macro zoom for positioning the connector well and for checking my soldering before i connected the repaired board to the PC.
  12. nemetila

    (Universal) Color LCD graphics library (2)

    I have ported a readRegister() function from ENERGIA. At 16MHz SPI clock it gives incorrent results, altough RobG's wrinting functions work corretly at this speed (LCD displays as it should). At 8MHz reading works correcty too. unsigned char readRegister(unsigned char Addr, unsigned char xParameter) { //ENERGIA //INT8U data=0; //sendCMD(0xd9); // ext command //WRITE_DATA(0x10+xParameter); // 0x11 is the first Parameter //TFT_DC_LOW; //TFT_CS_LOW; //SPI.transfer(Addr); //TFT_DC_HIGH; //data = SPI.transfer(0); //TFT_CS_HIGH; //return data; unsigned char data = 0; writeCommand(0xd9); writeData(0x10+xParameter); LCD_DC_LO; LCD_SELECT; UCB0TXBUF = Addr; while (UCB0STAT & UCBUSY); LCD_DC_HI; UCB0TXBUF = 0; while (UCBxSTAT & UCBUSY); data = UCB0RXBUF; LCD_DESELECT; return data; } Reading ILI9341's register 0xD3 ("Read ID4") must be the value of "0x09341" for( i=0; i<3; i++ ) { rx_data[i]=readRegister(0xd3,i+1); }
  13. I'm testing your code on Tiva C LaunchPad using the same type of LCD module. It displays perfectly with text.ino example, but it sends incorrect LCD_ID to my PC via UART/USB. The result i get: Read TFT ID failed, ID should be 0x09341, but read ID = 0x000 or Read TFT ID failed, ID should be 0x09341, but read ID = 0xFFFFFF I use the same pin fonfig as you used. Did your module send the correct ID? Thanks in advance.
  14. nemetila

    2.2" 320x240 Color LCD Booster Pack

    Probably it's a noob question: Why is not necessary to use current limiting resistors(R2..R5) to limit the LEDs' currents? (Your circuit uses shorts by default) I know it works, because i have test it, but the TM022HDH26 datasheet shows the maximum forward current is 25mA@3.4V for each LED, and the MSP-EXP430G2 LaunchPad's Vcc can be slightly above 3.4V Thanks in advance
  15. nemetila

    New MSP430F5529 USB Launchpad Released

    Sorry, I was wrong, because FET-Pro430 displayed "run time" and not "reading time". I think "run time" > "reading time". Here is an another test: eZ-FEt lite MSP430F5529 128 KB flash memory reading "run time" : 10.9 sec
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