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Recent content by yahootew3000

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    dot matrix led footprint

    hi, Can anyone help me to find the foot print of the 5x7 dot-matrix led display footprint. i would appreciate very much. Thx. The item: Specification - 5 x 7 dot matrix led display Manufacturer - Kingbright Part no. - TA12-11EWA Data sheet -...
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    CPU @ RTL Design - Verilog (with complete documentation)

    what is cpu rtl please click on the free mirror to download, no points is needed
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    CPU @ RTL Design - Verilog (with complete documentation)

    1 byte shift register verilog Hi, i simulated the codes using QII 7.1. It doesn't cause any problem to me. The documentation included the codes for each module. I design the simple CPU through hierarchical technique. Maybe you can try to pick some modules and give a test, chek whether it is...
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    [SOLVED] Project to replace CY7C64613 in the ICD2

    hi, i have figure the problem was the polarity of the 1N4148. I get it twisted! So the problem solved now. Another thing is the 74HC4066 also a little bit hot compare to other ICs. I checked the datasheet, the 74HC4066 VCC max is 11V, but the VPP is >13V. I'm using the Philips 74HC4066. Anyone...
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    [SOLVED] Project to replace CY7C64613 in the ICD2

    hi, i built the potyo2 icd2 clone. i found that the mc34063 is hot, is this normal? if it is not, how to solve it? the second thing is in order to operate, how to configure the CMOS-EN, VPP and OUT-EN pin?thx
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    Direct connect 5V to the transistor

    how to connect a transistor to a 5v base Hi, i would like to ask whether can i directly connect 5V to the base of transistor without the resistor?But i do not power it continously, instead, i'm using the PWM signal.Meaning to ON-OFF-ON the transistor rapidly. The transistor is 2N3904. Can it...
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    Direct connect 5v to transistor

    Hi, i would like to ask whether can i directly connect 5V to the base of transistor without the resistor?But i do not power it continously, instead, i'm using the PWM signal.Meaning to ON-OFF-ON the transistor rapidly. The transistor is 2N3904. Can it last for long period of time?Thx.
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    Bright up the dot-matrix LED

    Hi, i need help to make the column anode 5x7 dot-matrix LED become brighter. i was thinking that it maybe lack of current. any idea on how to improve this? thanks. The below image is my circuit coonection, i'm doing 10 pieces of the dot-matrix LED Added after 2 minutes: add up:my circuit...
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    CPU @ RTL Design - Verilog (with complete documentation)

    design simple cpu using verilog You can choose to download the documentation instead. The codes are included as well. The Verilog files are for your convenience Added after 3 minutes: I have included the winrar format, it is less in size compared to the winzip format. Both are the same.
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    CPU @ RTL Design - Verilog (with complete documentation)

    open core for picoblaze
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    How to use the potyo2, ICD2 clone?

    Re: help on ICD2 clone i try to program the 16F873A using the notebook, and my notebook only have USB port. i wonder whether the USB port can supply enough power to prorgam the device. last time i was using the JDM programmer(program using desktop), so the MCLR have to supply with >10V, that's...
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    How to use the potyo2, ICD2 clone?

    I try to built the potyo2. Actually, I don't understand how to use the potyo2. Does the potyo2 need the external power supply to program and debug? How does the external power supply apply on the potyo2? Can teach me and give me an example on program and debug the PIC16f876A using potyo2?Thank you.
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    CPU @ RTL Design - Verilog (with complete documentation)

    cpu design verilog Introduction To The Design of CPU using RTL Approach. This CPU is a simple 8-bit processor with 8-bit address bus. The architecture is based on accumulator-based design. The instruction set is grouped into few categories which is shown as below: 1. Data manipulation a. ADD X...
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    Combination Lock with GUI - Verilog (include documentation)

    This combination lock design can apply on the safety box. This design is tested on the Altera DE2 Board, the pin assignment for the FPGA is set. This design is running at 50Mhz. The specification is as below: • Accepts four,five or six digits passwords from keypad • Choose length of password by...
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    [SOLVED] Project to replace CY7C64613 in the ICD2

    hi, may i know whether the potyo2 ICD clone is self powered in programming?Original ICD2 think have external power supply.USB can supply enough power?Need extra power supply?how is the circuit?thx
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