Microcontrollers are manufactured by many companies specializing in the production of electronic components. Such microcircuits are intended for users to independently program. They are characterized by high performance, minimal power consumption, well-developed RISC architecture, functional completeness, minimal dimensions and low prices. The microcontrollers are flashed using a device such as a programmer.
general information
For the practical use of microcontrollers, the user requires inexpensive and affordable tools. There are many technical solutions for such devices and amateur, and industrial performance. In this article we will look at how you can make a programmer with your own hands. Such devices are manufactured for specific types and types of microcontrollers, universal devices do not exist. There are simple solutions that allow you to build a programmer with your own hands. literally “on one’s knee” (for example, Gromov’s programmer), and more complex, requiring expensive equipment for the manufacture and configuration of the device. We will look at the practical assembly of a simple device called "GTP-USB" or "GrabadorTodoPic-USB". It will not be easy for beginner hams to assemble such a programmer with their own hands, since practical experience is required to design such devices.
Technical description
To simplify the printed circuit board, you can exclude display elements from the circuit. This will not affect the device’s performance in any way, because they are needed solely for clarity, so that the user can see in what mode the USB PIC programmer is located . However, the same information can be seen on a personal computer monitor (using the "WinPic800" software version 3.55 B or 3.55 G). So, we describe a lightweight version of the device. The signal pins Vpp1 and Vpp2 are designed for microcontrollers with different types of cases (different number of pins). Vpp / ICSP output is needed for in-circuit programming. The remaining conclusions are typical. The circuit of this programmer can be routed on a single-sided printed circuit board. The adapter used for this device is universal, it can be connected to other PIC microcontroller programmers.
Device setup
So, having assembled the circuit, we carry out the first inclusion. As a result, a message appears on the computer screen: "Found new hardware" GrabadorTodoPic-USB sammer 2005 ". After that, the PC will offer to install drivers for this device. You can find them in the control program shell" WinPic800 ". We indicate the path to find the drivers: \ WinPic8003.55G \ GTP-USB \ DriverGTP-USB \. It should be noted that the circuit described in the article has been tested in practice, it works with the WinPic800 software version 3.55B and 3.55G. The programmer will not work with other versions. Make settings: in the menu "Installations - Equipment" must select "GT P-USB- # F1 "or" GTP-USB- # 0 "and click" Apply. "After that, we test our equipment. As a result, the message" Opening GTP-USB # 0 Ind # 0 Hardware Ok. V-3.55 ". That's all, the device is ready to work. As you can see, assembling the programmer with your own hands is not difficult. The device reads the information at a speed of 1-2 seconds, recording takes 3-5 seconds.
Conclusion
Many hams prefer to make tools for themselves, since the cost of such equipment is significantly different from the branded one. There are many technical solutions that make it possible to assemble a device of any type, including a programmer for cartridge chips of almost all types of laser and inkjet printers. Such devices are connected to a personal computer using a USB port, and to a device through a COM port. The scheme of the programmer itself is elementary, does not require additional settings, and the cost will be only 2-3 dollars.