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Recent content by chaitana

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    SIM900 Customer Flash Loader

    chipseller I use Revision:1137B07SIM900M64_ST. I found on this thread. Before update sim900 is xxxxB05SIM900XXX_ST. I have 2 sim900 in this release. Other I not sure. It's waiting for process not on pcb. After update, I can fix problem on AT+CREG to register sim to provider. Some time, On...
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    SIM900 Customer Flash Loader

    thank fmp. I can update with speed 115200. I need firmware B08. Does anyone have flash version B08?
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    simcom module update tool

    thank for tool. where is firmware? I need SIM300 firmware.
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    AES on 8 bit micro controller

    you can find document at atmel web site. AES is implement secure boot load for avr. include document and source code. AVR231: AES Bootloader Application Note http://www.atmel.com/dyn/resources/prod_documents/doc2589.pdf source code http://www.atmel.com/dyn/resources/prod_documents/AVR231.zip
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    Build AVR Programmer?

    how to make programmer for avr look this web http://dybkowski.net/elka/ispprog.html It a good programmer. If you like USB. **broken link removed** It's a fast programmer.
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    Mifare RFID reader help

    elektor rfid try this link http://www.terra.es/personal/ccossio/designstellaris2006_10.htm
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    How to configure ATmega8 portc port?

    avr portc Dear ctownsend The port is set to output. I'm only change define control port from portb to portc. It's work in portb. // Lcd Port Settings #define LCD_SER_PORT PORTB #define LCD_SER_DDR DDRB #define LCD_SCLK_PIN PINB5 #define LCD_MOSI_PIN...
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    How to configure ATmega8 portc port?

    I'm using atmega8 with lcd nokia 3310. When I use spi pin and some of portb as a control reset, ce and d/c. It's ok. But I changed control to portc (only control not spi). Lcd not active. I test lcd pin ce. It can't switch to hi. I'm check data sheet portc is adc port. How to config port? May I...
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    Mifare RFID reader help

    mifare rfid reader You can fond article, schematic elektor magazine september 2006. source code in elektor web site in RFID page
  10. C

    How to design a SmartCard reader for both synchronous and asynchronous cards?

    microcontroller smartcard reader sle4442 view example at **broken link removed**
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    89C51 SERIAL COMMUNICATION PROBLEM

    two 89c51 communicate RS232 using -12/+12V to present data 0/1. So distance is best on voltage. RS422/485 use other way. To use protocol like DS1302. You can use IC line driver like RS422. Link it together and use it like direct line. Becare full about direction.
  12. C

    how to make shape on tv

    I saw many project. It call ODS (on screen display). See site below or search "ODS on screen display" http://www.sxvm.com http://www.geocities.com/capecanaveral/launchpad/3632/dvm.htm http://instruct1.cit.cornell.edu/courses/ee476/video/ http://www.stv5730a.co.uk/
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    PCMCIA CardBus connect to ATmeg128 ?

    I found wireless lan card with avr and pic on web "air drop". see http://www.edtp.com/
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    Using 2 pins to make a serial port in 8052

    Re: using 2 serial port I found application note for many year ago. but I can't remember. I wrote routine like in application note. The problem is it can send or recieve at the same time.
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    Does anybody know a good IDE for SDCC PIC C Compiler?

    pspad asem-51 try PSPad it free. It can config Syntax highlighter and error point. I use in compile dos programming, winavr. https://www.pspad.com/en/
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