Quantum Szervo DSP Chip
(QDSP)

Modified: 2010. március 14. vasárnap

QDSP Firmware update (V1.6.0)!

QDSP IC is a circuit, which is a high-speed, flexible, easy to use device, based upon dsPIC30F4012 microcontroller, for building servo controllers. Using this device, CNC position servos suitable for driving DC motors with brushes can be built with relative low number of additional circuits.
The field of its application is first of all moving controllers of CNC-s, or performing any kind of regulation task demanding high precision and speed. The possible highest execution speed, job integration and the ease of use were the most important viewpoints during its development.

Main features (V1.6.0):

- Step/Dir-system motor stepping inputs,
- Two-channel, incremental encoder inputs,
- Encoder processing: 2×, 4× modes,
- Programmable Encoder Digital Interference Filter (EDF),
- Step signal multiplicator: 1× - 10× (step-multiplicator),
- Protection against motor overload: 1s - 7s (in a programmable way),
- Protection against overload of the controller (with readable temperature),
- Programmable integration time (95uS - 475 uS),
- Serial fine tuning (handling of the internal registers),
- Online error-level monitor (with ASCII or binary communication),
- Online PWM limit monitor in ASCII form,
- Error-level peakindicator (with ASCII 3s datalogger),
- Full PID motorcontroller algorhytm,
- Analogue P, I, D parameter-adjustment by potentiometer trimmers,
- Reduction of motor vibration,
- DSP performance: 120MHz, 30 MIPS, 16bit CPU, 40bit ALU,
- Full H-bridge control (with PWM and motor-brake modes),
- 16 bit PWM,
- Current limiting input,
- Adjustable Soft Error Limit buffer (1 - 200 Steps),
- Adjustable Hard Error Limit buffer (1 - 30000 Steps),
- Bandwith values:
    Encoder signal frequency: max. 6MHz,
    Step signal frequency: max. 1 MHz,
- Double Status signals by LEDs,
- Thermometer sensore input,
- Error indication output (Fault),
- Emergency stop input (Stop), chain error handling,
- Numerous writeable and readable configuration registers,
- Firmware upgrade possiblity through ICSP,

This QDSP IC can also be used in independent developments or the PCBs of the Servo controllers found on the WEB page can be assembled at home too. Ready-made, tested controllers are also available, so there is a wide range of possiblities to use this IC, - from building them in kit form up to ready-made CNC Servo controllers.

Numerous documentations can be found on the WEB-page for the independent developments and the use of existing PCBs, please take a careful visit on the WEB-side.

DSP=Digital Signal Processor (digita signal processing processor)