userial is an Free project building an USB to I2C/SPI/GPIO bridge, using the Atmel AT90USB647 CHip. Hardware and Software are released under an Open Source licence. It supports the following interfaces:
* USB interface (serial emulation)
* JTAG
* I2C (TWI)
* SPI
* 8 General purpose digital I/O
* 4 Analog to Digital converters (currently no firmware support)
AVR single-CHip developed by a very low threshold, as long as the computer will be able to study the development of AVR microcontroller. Only a single-CHip ISP download beginners line, the editing, debugging of software programs through a direct line into the AVR microcontroller, which can develop AVR Series Single-CHip package of a variety of devices. AVR single-CHip microcomputer in the industry known as "front-line struggle to seize state power."
AVR single-CHip developed by a very low threshold, as long as the computer will be able to study the development of AVR microcontroller. Only a single-CHip ISP download beginners line, the editing, debugging of software programs through a direct line into the AVR microcontroller, which can develop AVR Series Single-CHip package of a variety of devices. AVR single-CHip microcomputer in the industry known as "front-line struggle to seize state power."
Here an embedded System-on-CHip is build, in an Xilinx Spartan-3 FPGA with Microblaze as the processor.A PLB core System is made with the VGA IP core attached to it. The software written for the MicroBlaze processor specifies the object, the color and the movement of the display. The functionality of the module is verified by implementation on Spartan 3.
