Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Recent content by bendjy

  1. B

    Schematics and Firmware of BDM Interface for HC12

    and interfacing for the freescale 68hc12 Hi! Try to find in google "tbdml" and "podex" - two free and cheap BDM interfaces for FreeScale hc12 micros. Bendjy
  2. B

    Problems with SPI interface of AT45DB041

    at45db041 avr Hi Enas! Is in your shematic have level translator from AT45DB041 SI to AVR input ? I think this is absolutely necessary for corect work of comunication between DATAFLASH SPI and uC SPI. Did you read http://www.atmel.com/dyn/resources/prod_documents/DOC3297.PDF ? bendjy
  3. B

    [SOLVED] Project to replace CY7C64613 in the ICD2

    Hi R2D1 Closest schematic is 0430_004.pdf Schematic is the same, only 74hc00 is 74ahc1g04 and NAND is AND. Resistor values is corect. Buffers isn't connected in parallel. The F2 is fuse from modular conn GND to GND of ICD2. hope this will help you regards bendjy
  4. B

    [SOLVED] Project to replace CY7C64613 in the ICD2

    Hi mamaboss! I think the formulas in your pdf is not corect. My original ICD2 has Vout1 = Vout2 / 2 . I try to build same schematic with 34063 but without success. May be I маке mistake in values of components. In AN920-D.pdf from OnSemi.com fig.31 is near to sch from ICD2. regards bendjy
  5. B

    [SOLVED] Project to replace CY7C64613 in the ICD2

    Hi R2D1 In original schematic of ICD2 is used 74ahc126 ( as output ) - 3 psc and 74ahct126 ( as input ) - 2 pcs buffers. Unused buffer inputs are tied to GND. OE pins of 74ahct125 trought 74ahc1g04 ( or 74ahc1g14 - I don't sure) go to OE pins of 74ahc126 and RA2,RA5. Input of third ahc126 is...
  6. B

    [SOLVED] Project to replace CY7C64613 in the ICD2

    Here is my version of ICD2 PSU. With target uC 16f877 Vpp=12.5V bendjy
  7. B

    [SOLVED] Project to replace CY7C64613 in the ICD2

    Hi Andy_123 My original ICD2 is with MCP41100 and MIC2145 ( not 34063 ) in bootstrap configuration ( see www.micrel.com). regards bendjy
  8. B

    ICD2 USB clone - how to get it to work with 3.3V PIC24s ???

    cloning usb id Hi All In my ICD2 clone with 18f4550 I use SN74lvc1t45 as in/out buffer. I don't have 3,3V PIC and I do not know this is solution for these PIC's. For 5V PIC work fine. sorry for english Regards bendjy
  9. B

    [SOLVED] Project to replace CY7C64613 in the ICD2

    hi stroma in your schematic found one piece of NAND (U15a) who drive standalone 126, but in original ICD2 pcb this is not true. Here is one tiny logic AND ( A08S). Because pin 6 of ICD conn is not used in many application this is not error. bye bendjy
  10. B

    [SOLVED] Project to replace CY7C64613 in the ICD2

    icd2 t rj11 cores predrage bin2hex.exe /O0x80 boot.bin
See more

Part and Inventory Search

Back
Top