Programming test device for programmable chip

Abstract

The invention provides a chip programming test device, which comprises a CPU module, an SPI module, a power supply conversion protection module, a function switching module, an LED indication module,a USB transmission module and a keyboard control module, and also comprises two or more than two SPI interfaces to realize batch programming of a plurality of chips. According to the programmable chipprogramming test device provided by the invention, the chip does not need to be plugged and unplugged repeatedly; manual operation steps are simplified, computer does not need to be used, the original programmer is completely replaced; programming and testing programs can be automatically carried out by connecting a power supply; a serial port or a parallel port is not needed to simulate SPI communication, the SPI interface is directly used for programming the chip, the highest speed can reach 20 Mbps, meanwhile, 17 chips can be supported to perform programming tests at the same time, the programming efficiency is greatly improved, and the device is suitable for batch production tests.

Description

technical field [0001] The invention relates to the field of single-chip microcomputer development, in particular to a programming and testing device for a programmable chip. Background technique [0002] At present, in the field of single-chip microcomputer development, the following methods are generally adopted: one is the program burner method, and the other is the serial port / parallel port SPI simulation programming method. [0003] The program programmer method needs to use a separate programmer. When the source program needs to be modified, the single-chip microcomputer chip needs to be pulled out from the target board, and then the updated target code is re-solidified into the single-chip microcomputer chip. In this process, It is often necessary to repeatedly plug and unplug the chip, which is cumbersome to operate, which affects the life of the chip, and the program writer is generally expensive and the production cost is high. [0004] The serial port / parallel po...

AI Technical Summary

Problems solved by technology

[0003] The program programmer method needs to use a separate programmer. When the source program needs to be modified, the single-chip microcomputer chip needs to be pulled out from the target board, and then the updated target code is re-solidified into the single-chip microcomputer chip. In this process, It is often necessary to repeatedly plug and unplug the chip, which is troublesome to operate, which affects the life of the chip, and the program writer is generally expensive and the production cost is high

[0004] The serial port / parallel port SPI simulation programming method generally uses the serial port or parallel port to simulate the SPI timing sequence for chip programming. This technology no longer needs to use a programmer, but the error correction capability is poor. Once an error occurs such as data misalignment or buffer error, the computer needs to be restarted. ;The efficiency is low, the programming speed is only about 1.6kbps, and it takes about 15 seconds to program a 2K program, which seriously affects the progress of batch programming

[0005] The original programming implementation method is to use the upper computer to send out the agreed signal of the chip to make the chip enter the programming state. If there is no agreed signal, the chip enters the normal operation state for testing; in this way, it needs to be restarted when switching between the programming state and the normal operation test state. , and it needs to switch between the two states multiple times in programming, which is low in efficiency and high in complexity

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