Method for reading and writing on-line serial data of on-chip system

Abstract

The invention discloses a method for reading and writing on-line serial data of an on-chip system, and belongs to the technical field of integrated circuits. The method comprises the following steps of: generating an ISP (in-system programming) module by using a comprehensive hardware description language, and inserting the ISP module into the on-chip system with a program memory to implement read-write of the on-line serial data of the program memory. The ISP module comprises a controller module, a status register module, an SPI (serial peripheral interface) module, a data path module, a timer module, an address generator module and a control signal generator module. The controller module is connected with the SPI module, the status register module, the data path module, the timer module, the address generator module and the control signal generator module; the timer module is connected with the control signal generator module; and the control signal generator module is connected with the address generator module. The module in the method is clear to divide, simple to implement and high in reliability, is easily transplanted in different on-chip systems, is convenient to develop and debug the on-chip system, and shortens the development period of the on-chip system.

Description

technical field [0001] A method for reading and writing online serial data of a system on chip belongs to the field of integrated circuit design. Background technique [0002] With the continuous maturity of application-specific integrated circuit design technology, more and more special-purpose chips will be produced in this field, and various systems-on-chips will also continue to appear, and program memory is one of the main modules that constitute the system-on-chip. First, how to read and write data to the program memory has become one of the main issues to be considered in the design of the system-on-chip. At present, there are three main methods for reading and writing data in the program memory: dedicated programmer data reading and writing, board-level data reading and writing, and online serial data reading and writing. [0003] The data read and write of the special programmer refers to the data read and write interface of the program memory is led to the IO pin ...

AI Technical Summary

Problems solved by technology

The chip supporting the serial data reading and writing method in this patent still needs to embed special analysis logic in the chip

Images