PICKit

PICkit is a family of programmers for PIC microcontrollers made by Microchip Technology. They are used to program and debug microcontrollers, as well as program EEPROM. Some models also feature logic analyzer and serial communications (UART) tool.

The people who develop open-source software for the PICkit use a mailing list for collaboration.

The PICkit 1 — introduced on March 31, 2003 for US$36 — was a rudimentary USB programmer for PIC microcontrollers, produced by Microchip Technology, the manufacturer of the PIC series of microcontrollers. It was integrated into a demonstrator board, featuring eight LEDs, a switch, and a potentiometer. Its default program, explained in the documentation, rotates the LEDs in series. The light display's direction and speed of rotation can be changed with the button and potentiometer on the PICkit board.

The PICkit 2 — introduced in May 2005 — replaced the PICkit 1. The most notable difference between the two is that the PICkit 2 has a separate programmer/debugger unit which plugs into the board carrying the chip to be programmed, whereas the PICkit 1 was a single unit. This makes it possible to use the programmer with a custom circuit board via an In Circuit Serial Programming (ICSP) header. This feature is not intended for so-called "production" programming, however.

The PICkit 2 uses an internal PIC18F2550 with FullSpeed USB. The latest PICkit 2 firmware allows the user to program and debug most of the 8 and 16 bit PICmicro and dsPIC members of the Microchip product line.

The PICkit 2 is open to the public, including its hardware schematic, firmware source code (in C language) and application programs (in C# language). End users and third parties can easily modify both the hardware and software for enhanced features. e.g. Linux version of PICkit 2 application software, DOS style CMD support, etc.

The PICkit 2 has a programmer-to-go (PTG) feature, which can download the hex file and programming instructions into on-board memory (128 KB I²C EEPROM or 256 KB I2C EEPROM), so that no PC is required at the end application.

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