PIC programmer on the self-powered USB port

   

Program management is entrusted to a USB microcontroller latest PIC18F2550-I/SP already programmed. The latter serves as an interface between your PC and the various microcontroller you want to program.

The USB cable:

The programmer is connected to your PC via a USB cord whose ends have male connectors include:

 

The exchange of data between the PC and the programmer takes place only in Full-Speed ​​(12 Mbits / s). Thus, you can opt for either a USB cable to standard USB 1.1 (Full Speed ​​- 12 Mbit / s) or USB2.0 (High Speed ​​- 480Mbits / s). Tip: Do not connect your USB PIC programmer on a HUB. Preferably use a free USB port on the front or back of your PC or laptop.

The software driving the PIC programmer:

This is the software WinPic800 V3.55G that supports the USB programmer. You'll find it for free download on page [ Download ] This program is in the PIC18F2550 WinPic800-3.55G/PIC18F2550 HEX.

 

The software WinPic 800 V3.55G allows an efficient and fast USB programmer:

• WinPic V3.55G 800 is compatible with XP (not compatible with Vista)
• WinPic V3.55G 800 automatically detects the PIC placed on the supports of the programmer,
• WinPic 800 V3.55G requires no adjustment.

Aspect Programmer USB

Nomenclature USB programmer for PIC and EEPROM:

Resistors 1 / 4 W - 5% (there is no R7).

• 100: R5, R6
• 1k: R8, R9
• 2.2 k: R2
• 4.7 k R3, R4
• 10k: R1

Chemical capacitors:

• 1μF/16V: C8, C7
• 10μF / 16V: C9
• 47μF/16V: C3
• 220μF/16V: C1

Capacitors Plastic LCC:

• 100 nF C2, C4

Ceramic capacitor:

• 15pF: C5, C6

Diodes:

• 1N4148 D1, D2, D3, D4
• Emitting LED 3 mm in diameter D5 (green) and D7 (orange).

Quartz:

• X1: 12MHz

- Inductance:

• L1: choke VK200

Transistors:

• BC547B: Q1, Q2

- Integrated Circuits:

• PIC18F2550-I/SP: U1 + tulip support 28-pin (already programmed).

- Miscellaneous:

• K1: Socket USB-B.
• Tulip supports: 2 x 8 pin DIL, 1x 18-pin DIL, 1x 28-pin DIL, DIL 1 x 40 Boche, 1 x 44 pin PLCC.
• Day 3: 5 tulips scored pins for the connector optional.
• PCB single sided 98 x 75.

Positioning of the choke VK200:

Connect the case of quartz X1 to ground as shown below.

 

Implementation and printed circuit USB programmer:

Structural diagram of the controller

 

18F2550 microcontroller hex file