Piezo legs

[ferrousduke]

Hello all,
I want to control a piezo actuator which is based on Piezo leg technology. To achieve precise motion of actuator stud, I have designed an interface to it. the interface comprises of EEprom, ADC, an amplifier and a counter.

EEPROM is programmed with a set of data. its a waveform that will be an input to Piezo leg. 8 bit Counter is used to access eeprom addresses and will be further provided to DAC. DAC will convert it into an analogue value which will be supplied to an amplifier and to the Piezo leg. I m using PIC18F4550. Is it a good way to use PIC as a counter and its internal EEprom for this purpose? how can I implement it ? I need a little help to work with eeprom thing..

here's the image:

[kender]

Look up read_eeprom() and write_eeprom() in the manual. If you think that you have (or expect to have) problems using these functions, tell us why.

- Nick

P.S. Please correct me if I'm wrong. LM1876 is designed for driving an inductive load. Piezos are more of a capacitive load.
P.P.S. Out of curiosity - why is the schematic partially in English and partially in Russian?
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Read the label, before opening a can of worms.

[ferrousduke]