KR20030009583A - A RAM DISK DRIVER using Dynamic Random Access Memory - Google Patents

Abstract

PURPOSE: A RAM disk drive storage using a dynamic RAM is provided to boot a computer rapidly and execute a window application program necessary for a specific high speed smoothly using a high speed auxiliary disk. CONSTITUTION: A dynamic memory of a volatile property which removes data when a power is not supplied is converted into a memory having a property and an effect similar to a static RAM of a non-volatile property through a general DC inverter and an internal power supply such as a storage battery. In detail, if a computer is turned on, a CPU searches ROM BIOS and executes contents recorded in the ROM BIOS. A computer self diagnosis program which is initially executed checks a trouble of the CPU, judges a trouble of a video chip set, and displays a screen. The computer self diagnosis program checks troubles of a basic input devices such as a RAM, a cache, a keyboard, an FDD, etc. and checks a DRAM refresh, a parity, a system timer, a processor, a virtual mode, etc. Continuously, an operating system is read in an MBR(Master Boot Record) in the device. An active partition in a disk is searched and the operating system installed in the active partition is loaded. After loading the operating system, the system terminates a task of the BIOS.

Description

A RAM DISK DRIVER using Dynamic Random Access Memory, characterized by converting volatile dynamic memory into a non-volatile RAM disk drive.

The present invention is a combination of computer memory, input and output computer peripherals, motherboard rombios, computer boot-related technologies, such as to create a memory RAM disk using the memory is faster than the input and output access speed of the hard disk is required It relates to a device and a software program used when there is work. Noiseless noise that can significantly reduce the time required for the loading of the OPERRATING SYSTEM, which is almost essential in the booting process of a general personal computer system, or replace the storage medium of the computer's hard disk. This system, which can be applied to the creation of high speed disks, has the hardware and software technology required for memory disking, the continuous power supply technology for the preservation of programs stored in the memory, and the priority of memory disk access during the booting process. And the like are used.

The process of uploading O / S program to the system uses the boot sequence and hardware auxiliary memory supported by CMOS program. The secondary memory device is divided into sequential access method and direct access method according to the data access method. The sequential method has good recording density, but it takes a lot of time to search for information. There are magnetic tapes and magnetic disks of the direct access method that can directly read and write in the required position, such as magnetic tapes, and floppy disks and hard disks are used in personal computers. In the case of a hard disk commonly used in personal computers, however, the data access time is longer than that of RAM, and due to the durability of the hard disk itself, it is weak to impact and has a high speed of rotating magnetic discs. The noise generated is getting worse as more hard disks are supported.

Recently, in order to solve the problems of hard disk durability, noise, and access time, the characteristics of ROM have been changed a bit, and memory has been used as an auxiliary storage device replacing hard disk. EEPROM (Programmable ROM) has been developed. Flash memory, a type of Electrically Erasable Programmable ROM, usually acts as a ROM, but can act as an intermediate between a volatile RAM and a nonvolatile ROM that records internal data as needed. . The flash memory stores a little compared to the products used in MP3 players called MMC (Multimedia Memory Card), those used in digital cameras such as SM (Smart Media), and other flash memories called Compact Flash (CF). There is a large capacity product. Flash memory, however, is much more expensive than hard disk drives or DRAM, and the time required for data writing is about 1,000 times slower than DRAM, and unlike the general DRAM, the life span of several hundred thousand times Durability, which is inferior to general DRAMs, is also a disadvantage, and there are many obstacles to practical use.

The above invention focuses on solving the above problems. The invention is to create a stable and stable RAM disk drive that is durable and resistant to physical shock, and to construct a professional secondary storage disk drive based thereon. have.

The present invention was created in order to solve the above problems, the general public has a secondary disk having a high speed just by mounting the device can be made to boot up at the time of computer booting, This can be useful when running Windows applications that require a certain speed.

The present invention is a device focused on overcoming the shortcomings of a noisy and slow hard disk and the disadvantages of a flash memory having an expensive price and an inefficient storage speed, and also helps to make a noiseless NP computer (NOISE PREVENTION COMPUTER). It can help speed up the execution of various applications at low cost.

Hereinafter, a method configuration and an application effect of the method of generating a ramdisk according to the present invention will be described in detail.

After installation, the booting process is performed as follows. When the computer is powered up, the CPU finds the ROM BIOS and executes the contents recorded in the ROM BIOS. The computer's self-diagnosis program, called POST, first checks the CPU itself, determines whether there is a video chipset, and then starts displaying the screen. After that, it checks the basic input devices such as RAM, cache, keyboard, and FDD for abnormalities, and checks for DRAM refresh, parity check, system timer, processor error, and virtual mode error. After the POST process, which is a self test, is completed normally, the OS is loaded from the MBR (Master Boot Record). Then find the Active partition on the disk and load the operating system installed on the Active partition. After the OS has started to load, the system will terminate the BIOS's task.

The storage hardware stores data in the states 1 and 0. Store and reread digital values of 1 and 0. With eight R registers with many instructions and values from 0 to 7 to R0, R1, R2, R3, R4, R5, R6, and R7, these R registers are used to help manipulate the values and store them in one memory location. Move data elsewhere If ADD A, 04h adds the value of R4 to the accumulator and contains 6 in accumulator A and 3 in R4, the accumulator holds 9 and has four distinct register banks. At this time, register bank 0 (address 00h to 07h) is used by default as the first boot. The register R4 is unified with the internal RAM address 1Ch so that the address does not become 04h in the internal RAM. At this time, the register bank is in the first 32 bytes of the internal RAM. When using the first register bank (i.e. bank 0), the internal RAM position uses 1Fh from 08h and register 20h uses the following. When accessing a bit variable with a microcontroller and giving a useful 128-bit variable from 00h to 7Fh, when the bit memory is part of the internal RAM, the 128-bit variable takes up 16 bytes of internal RAM from 20h to 20Fh. If we try to write a value to 20h from the internal RAM address, we need to effectively set the bits from 00h to 07h, and the memory will be divided by providing instructions for accessing 16-byte memory. By default, when booting into the microcontroller, the stack pointer is initialized to 08h and the stack expands upwards starting at address 08h. When using other register banks (1, 2, 3), the stack pointer with the address above the highest register bank in use reinitializes the stack pointer with a value greater than 2Fh when the bit variable is initialized to protect the stack pointer. The setting process is performed.

From the memory chip, the power supply (VCC) and ground (GND) pins are used to power the memory chips inside the computer as either 5 volts DC power, 3 volts, or 3.3 volts DC power. In using the data bus of a memory chip, a single signal consists of two or more single signals that process eight whole signals at once from bits 0 to 7 when the computer processes the data into ASCII code. When data is written to or read from the memory chip at the same time, the data is read and written through the data bus at the same time. When reading and writing data to the memory chip, 1024 contents are simultaneously stored separately. When 1024 distinguishable areas are needed inside the chip, the address bus is directly controlled by a signal that allows external selection to distinguish these areas. Each pin of 1024 bytes, or 1 kilobyte, is divided into 10 pins for controlling A0, A1, A2, ..., A9 in addressing. As with the databus, 10 with 1-kilobyte capacity starting from zero. Use an address bus consisting of pins.

A continuous power supply that converts DRAM's volatile properties into non-volatile properties, with a voltage of 3.6 volts, using three times the electrolyte of conventional secondary battery voltages, and an energy density of one liter when more than four volts of electrolyte that degrade at 1.35 volts. 300 or more lithium-ion (Li-ion), lithium polymer battery is mounted. When the RAM disk is installed, software using Windows asynchronous input, subclassing and superclassing, threads, and hooking is run.

The effect obtained by the present invention having the method configuration and operation as described above is that noiseless and fast storage devices are used in place of noisy and slow hard disks, and flashes having inefficient storage speeds as well as high prices. It is cheaper than memory and has a faster device. Not only can it contribute to making a noise-prevention computer (NOISE PREVENTION COMPUTER), it can be said to be an invention that can help speed up the execution of various applications.

In addition, the present invention triggers a large amount of DRAM demand, which can contribute to the creation of various added values related to memory export for Korea, which has consistently maintained the world's top level in production and sales in the non-memory sector, mainly DRAM. There is.

Claims (1)

Through computer internal power supply such as general DC converter and battery, it can make volatile dynamic memory (DRAM) similar to non-volatile static memory (SRAM). And RAM disk drive storage using dynamic RAM, characterized by converting a dynamic memory (DRAM) having a nonvolatile nature into a RAM disk drive having a nonvolatile nature.