Engraving and milling machine with DSP numerical control system USB connection

CNC carving and milling machine of PC and DSP communication using USB module, USB chip selection with MCU kernel EZ - The CY7C68013A USBFX2 series, the chip includes a intelligent serial interface engine ( SIE) , it performs all basic USB function, liberating the embedded MCU is used to implement other functions, to ensure the sustained high effective data transmission; Chips with 4 KB for data buffer FIFO, when as from equipment, can use synchronous/asynchronous FIFO interface connected to the main equipment, mainly as a device, can through the general programmable interface forms, arbitrary waveform control to achieve with other connection from the device, can easily compatible with the vast majority of bus standard; Firmware, flexible configuration, but will need to run on CY7C68013A firmware, stored in a host, after the USB device connected to the host, downloaded to the device, thus achieved without change the hardware easily modify the firmware, can fully realize the USB2. 0 agreement and downward compatible with USB. The carving and milling machine of numerical control system chooses way SlaveFIFO, asynchronous read and write, this way is from machine, DSP can read and write as common as multilayer of CY7C68013A internal buffer FIFO FIFO, speaking, reading and writing, circuit connection as shown in the figure below. Configuration FLAGB = FF and FLAGC = EF is the full empty status flag CY7C68013 internal FIFO, TMS320LF2407A by general IOPC2, IOPC1 to achieve FIFO of empty and full state information, such as through A address line selection CY7C68O13 internal FIFO ( EP2 and EP6) , packet submitted via the data bus implementation.

CNC carving and milling machine of the communication of PC and DSP USB module