pic18f2550 Microcontroller Project Board

The new PIC18F2550 Project Board was designed as the development platform for student projects. The board features MCU: PIC18F2550 with external xtal, ADC: one channel 0-2.5V sigma-delta converter, Linear Technology LTC2400/LTC2420, 6-channal 10-bit ADC 0-5V, Display: Two connectors for text LCD or GLCD, USB: onchip USB port with type B connector, Power supply: onboard low dropout regulator, rechargeable ba ...

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A Minimal USB CDC ACM aka Virtual Serial Port

This page introduces a minimal firmware that implements a USB Virtual Serial Port for Microchip PIC18F4550 processor. The code has been optimized to use minimal amout of memory (both Flash and RAM) and tuned to work well with the Free SDCC C-compiler. The code size is less than 2500 bytes and it requires about 230 bytes of RAM memory and it is capable of transferring almost 1 MB/sec (if only the PIC could g ...

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Basic circuit for PIC18F24J50 or PIC18F26J50 to work over USB

The basic circuit below will work with any PIC18F2xJ50 microcontroller. You just have to upload the appropriate firmware. Go to Downloads section to find firmware hex files for the microcontroller and the resonator you would like to use. PIC18F24J50 firmware v2.6.3 - all subversions.zip contain the following general use subversions: 4 MHz, 8 MHz, 12 MHz, 16 MHz and 20 MHz, and the following subversions for ...

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USB PIC Programmer

This page is dedicated to everybody needs to program a PIC (Microchip) device via USB port. Looking on the web for ready-to-use  projects, I found a good one called Open Programmer, coming with several schematics, PCBs and Open Source code. The original link is http://openprog.altervista.org/OP_ita.html What concerned me was the need to mount, on the mainboard, a specific socket board depending on the model ...

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PIC’ing the MAX3100: Adding USB to a PIC Microcontroller Using the MAX3100 UART using pic microcontroller

Abstract: USB has just become easy to implement. This application note eases equipment designers into USB by allowing them to continue to transmit and receive data using the familiar UART frames of the MAX3100 UART. A UART-to-USB converter IC and operating system driver will take care of all of the USB complexity. The application note describes all of the software and hardware you need in order to transmit ...

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Rohm has single chip USB audio decoder

Desription ROHM's USB Audio Decoder ICs integrate a USB 2.0 host, SD memory card controller, AAC decoder, WMA decoder, MP3 decoder, Audio DAC amp, and a system controller all on a single chip, allowing easy playback of music stored in USB flash memory using an audio player. They can be easily added to virtually any audio device (i.e. CD player, mini-component stereo, portable player, car stereo) for greater ...

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USB Low Pin Kit

Introduction USB is very common interface today. If you look around, many of devices today comes with a USB port. Computers, printers, routers, usb keys, etc. All this devices have a USB controller inside. These devices can be divided in two groups: USB Host (like a computer, routers, modern LCD TV’s); USB Device (like flash drive, mouse, keyboard); Most of hobby electronic projects still are in RS232 seria ...

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PIC18F452 to PC USB 2.0 interface with FT245BM

Here is an example of how to interface a PIC18F452 to a PC  via the USB port. The windows-pc (98, Me, 2000, XP, 2003) runs a program (C# application, Microsoft Visual Studio .NET 2003) to communicate with the USB interface, which transfers data to and from the PIC18F452. Many thanks to FTDI to deliver royalty-free drivers (FTD2XX.dll) and to KOPF to develop the needed library (AID.dll) All parts are availab ...

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Open Source Framework for USB Generic HID devices based on the PIC18F and Windows

Introduction If you've dabbled with PIC18F microcontrollers and the USB Generic HID standard before (perhaps you've even tried my Building a PIC18F USB device project) then you will have noticed that there is a lot of complexity in supporting USB on both the PIC18F and the Windows host-side of things. Getting beyond the basic steps of reading a switch and flashing an LED (how many projects have you built to ...

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USB Audio Streamer A Microchip PIC based USB sound card

INTRODUCTION The idea for creating a USB sound card based on a PIC came from discussions of other people creating one on the Microchip USB forum. The hardware of the card is based on all Microchip products. The software uses a modified version of the Microchip USB framework which is interrupt driven instead of the traditional polling. The device is a USB composite device. The first device is an implementati ...

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