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Guide device and guide method applied to PowerPC minimum system

A boot device, the smallest technology, applied in memory systems, program control devices, instruments, etc., can solve the problems of long boot time and complicated boot process of PowerPC minimum system, and achieve the effect of short boot time and simple boot process

Active Publication Date: 2015-06-24
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to solve the problem that the booting process of the PowerPC minimal system is complicated and the booting time is long without an emulator, thereby providing a booting device and a booting method applied to the PowerPC minimal system

Method used

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  • Guide device and guide method applied to PowerPC minimum system
  • Guide device and guide method applied to PowerPC minimum system
  • Guide device and guide method applied to PowerPC minimum system

Examples

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specific Embodiment approach 1

[0015] Specific implementation mode 1. Combination figure 1 Illustrate this specific embodiment, a kind of guide device that is applied to PowerPC minimum system, it comprises Boot Flash chip, and it also comprises Data Flash chip, bus transceiver chip and CPLD;

[0016] The chip select signal output terminal CS0# of PowerPC is connected to the chip select signal input terminal CE# of the Boot Flash chip through the CPLD; the write enable signal output terminal and the output enable signal terminal of PowerPC are respectively connected to the transceiver chip and the CPLD and the Boot Flash chip through the bus The write enable signal input terminal of the PowerPC is connected to the input enable signal terminal; the address data output terminal of the PowerPC is connected to the address data input terminal A[18:0] of the Boot Flash chip through Addr[13-31] through the bus transceiver chip; the PowerPC The data output or input terminal Data[0-7] of the bus is connected to the ...

specific Embodiment approach 2

[0018] Embodiment 2. The difference between this embodiment and the booting device applied to the smallest PowerPC system described in Embodiment 1 is that the Boot Flash chip is a chip with a bit width of 16 bits.

specific Embodiment approach 3

[0019] Embodiment 3. The difference between this embodiment and the booting device applied to the minimum PowerPC system described in Embodiment 1 is that the Boot Flash chip is an 8-bit wide chip.

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Abstract

The invention relates to a guide device and a guide method, and in particular relates to a guide device and a guide method applied to a PowerPC minimum system. According to the guide device and guide method, the problems of complex guide process and long guide time of the PowerPC minimum system when an emulator is unavailable are solved. The chip selection signal output end of the PowerPC is connected with the chip selection signal input end of a Data Flash chip through a complex programmable logic device (CPLD); the write enabling and output enabling signal ends of the PowerPC are respectively connected with the write enabling and input enabling signal ends of the Data Flash chip through a bus transceiving chip and the CPLD; the address data bus end of the PowerPC is connected with the address data bus end of the Data Flash chip through the bus transceiving chip; and the data output or input end of the PowerPC is connected with the data input or output end of the Data Flash chip through the bus transceiving chip. The method comprises guiding the PowerPC minimum system by using the Data Flash chip subjected to guide debugging of the PowerPC minimum system. The guide device and guide method are applicable to a PowerPC minimum system.

Description

technical field [0001] The invention relates to a guiding device and a guiding method. Background technique [0002] As the actual application demands higher and higher performance requirements for the processor system, especially in the field of telecommunications and communications, the smallest PowerPC system is widely used. However, the development difficulty of the smallest PowerPC system is slightly greater than that of the smallest ARM system. On the one hand, because of the high cost of PowerPC chips, general applications cannot afford the development cost, and there are few technicians engaged in PowerPC development, and development materials and development experience can be shared. On the other hand, it is also because PowerPC development generally requires the purchase of expensive emulators to help developers debug the system bootloader in the early stage. [0003] The smallest system needs a non-volatile storage medium after power failure to store the boot pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/455G06F12/08G06F12/0831
Inventor 刘大同彭宇刘连胜刘川见其拓彭喜元
Owner HARBIN INST OF TECH