Programmable multi-pattern DAC controller applied to servo control class SoC

Abstract

The invention provides a programmable multi-pattern DAC controller applied to a servo control class SoC. The controller includes a bus interface module, a register module, pattern control modules anda DAC interface module, and the bus interface module is connected with the register module and used for converting bus data supplied by an external bus into register interface data and sending the register interface data to the register module. The register module is connected with each pattern control module and used for sending the register interface data to a corresponding register in the register module, configuring the register and sending configuration information in the register which is configured to the corresponding pattern control module. Each pattern control module is connected with the DAC interface module and used for generating a corresponding level signal according to the configuration information and sending the level signal to the DAC interface module, the DAC interface module selects a corresponding timing sequence conversion rule for conversion of the level signal after receiving the level signal and sending the converted level signal to a corresponding DAC channel.

Description

technical field [0001] The invention belongs to the field of precision measurement and control, and in particular relates to a programmable multi-mode DAC controller applied to a servo control SoC (System on Chip, system-on-chip). Background technique [0002] With the development of integrated circuit technology, SoC can integrate more and more modules. For servo control SoCs, there are more and more DACs (Digital to Analog Converters, analog-to-digital converters) that can be integrated, and the functions that need to be implemented by the DACs are also more complex. There are more requirements for the control of DAC. Traditional DAC controllers have simple functions and can only control the level of the DAC output configuration. If the DAC needs to output more complex waveforms, such as figure 1 As shown, generating a sine wave requires a CPU (Central Processing Unit, central processing unit) to continuously calculate the sine value and write it into the DAC controller...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a programmable multi-mode DAC controller applied to servo control SoCs to solve the problem that the current DAC controller needs to occupy CPU memory and slow down the running speed of the CPU when generating complex waveforms.

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