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Recent content by PiCS

  1. PiCS

    Connecting to MPLAB ICD 2 ICD0019: Communications: Failed t

    icd2 clone last rev schematic for icd2 Rev.C is the same with icd2 Rev.B only pcb is double sided
  2. PiCS

    Problem in LCD display in PIC 16f876 with 16x2 lcd display

    pic16f876 + lcd void LCD_CONTROL(void){ LCD_EN = 1; asm("nop"); asm("nop"); asm("nop"); asm("nop"); LCD_EN = 0; } for 4Mhz signal EN = 4uS for 20Mhz signal EN = 0.8uS
  3. PiCS

    74hc595 noise problem ?

    difference between uln 2003 uln2803 See R41 & C10 from my schematic Conect R41 & C10 to last pin12 of 74HC595,first pin12 conect to MCU
  4. PiCS

    74hc595 noise problem ?

    รูป ic 74595 Schematic for Moving Message Display 7x40 pixel 7 x IRF9540 for rows 8 x 74hc595 + ULN2003 for cols 1 x PIC16F627A for control 1 x MAX232 for comunication 2 Input for setting (etc.) maximum refresh rate for this schematic 500Hz
  5. PiCS

    74hc595 noise problem ?

    74hc595 circuit Put on last ic 74hc595(U25) pin 12(latchclk) to gnd 27pF and 1k resistor
  6. PiCS

    [SOLVED] Project to replace CY7C64613 in the ICD2

    @ Nandulal your schematic is wrong check RC1 and RC2
  7. PiCS

    [SOLVED] Project to replace CY7C64613 in the ICD2

    for my board (PiCS Rev. B) read this
  8. PiCS

    [SOLVED] Project to replace CY7C64613 in the ICD2

    Check conection between PIC18F4550 and PIC16F877 File for PIC16F877 not work on PIC16F877A
  9. PiCS

    [SOLVED] Project to replace CY7C64613 in the ICD2

    set all sectors unprotected for write
  10. PiCS

    can not program 18F4550 with te20 & winpic (for ICD2 clo

    icd2 clone 18f4550 erase please post your schematic for programmer with your value for components
  11. PiCS

    can not program 18F4550 with te20 & winpic (for ICD2 clo

    te20 pic try to program only 8 word rest all word 0xFFFF if is ok need more power for program add 100uF for power
  12. PiCS

    can not program 18F4550 with te20 & winpic (for ICD2 clo

    18f4550 programming problem PIC18F4550 have two power (Vdd,AVdd and Vss,AVss) conect 100nF to Vdd and Vss PIC18F4550 read an erase without problems ?
  13. PiCS

    [SOLVED] Project to replace CY7C64613 in the ICD2

    Please solder 100nF cap to Vcc and Gnd on red circle
  14. PiCS

    [SOLVED] Project to replace CY7C64613 in the ICD2

    with RC an work good and with HS conected fail input for external clock is trigger schmit
  15. PiCS

    [SOLVED] Project to replace CY7C64613 in the ICD2

    program 877A with RC oscillator
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