Disadvantage (and this is the main disadvantage for small vendors and amateurs) is not good availability of this microcontrollers (PIC, Cypress, Atmel, Intel, …) and their high price (with comparison to simple “RS232” microcontrollers).ī) Second option is to use some universal converter between USB and “another” interface.
AVR CNC USB CONTROLLER DRIVER
And in addition is necessary to create driver on the computer side (while operating system not includes it – e.g. Then is necessary to know how USB works and according this write firmware into microcontroller. Implementation of USB into external devices is at present time solved in two choices:Ī) First is using microcontroller, which have hardware implemented USB interface. In this case help only add-on PCI card with this interface.
But in latter years is RS232 removing from standard included PC interfaces (new computers hasn’t RS232).
This interface is probably the oldest in PC history and has good operating system support. Therefore more devices from small vendors are inclined to RS232 communication. In addition there is need of software support on PC side – device drivers. For developers is implementation of USB into their devices more complicated (with comparison to RS232 is USB more complex protocol). This is due to the simplicity to the end users (Plug and Play, without restart). Introduction:Īt present time is USB interface very popular especially within end user.
AVR CNC USB CONTROLLER SERIAL
Device is named IgorPlug-USB (AVR) (as successor of my previous device for computer remote control IgorPlug – serial port version). This project includes development of firmware on microcontroller side, driver development on computer side (for Windows operating system), development of DLL library for functions calling from another programs (programmers level) and development of demo program (users level), which shows all functions of this device. Simply: implementation USB interface on firmware level (similar as emulation of RS232 interface in microcontrollers, which not have RS232 support). Purpose of this article is to inform readers about implementation USB interface into singlechip microcontroller, which this interface directly not supports.
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