Hardware system for data conversion and storage device
A hardware system for data conversion, comprising: a space searching circuit, for searching space characters in a data stream of original data after receiving an instruction sent by a server to read and write data; a length detecting circuit, for detecting a length of data in the data stream of original data according to two adjacent space characters; a parallel encoding circuit, for converting the original data according to the data format in the instruction according to the length and the data stream of original data and outputting the converted data. The hardware system for data conversion is embedded in a storage device. The entire data conversion process could not only improve the efficiency of data conversion, but also does not occupy the resources of the CPU and DRAM of the server or the MCU of the SSD controller.
1. A hardware system for data conversion, comprising:
a space searching circuit, for searching space characters in a data stream of original data after receiving an instruction sent by a server to read and write data;
a length detecting circuit, for detecting a length of data in the data stream of original data according to two adjacent space characters;
a parallel encoding circuit, for converting the original data according to the data format in the instruction according to the length and the data stream of original data and outputting the converted data.
2. The hardware system for data conversion according to claim 1 , wherein the space searching circuit comprises:
a space character register, for storing a preset space character preset by user.
3. The hardware system for data conversion according to claim 2 , wherein the space searching circuit further comprises: a plurality of character comparators, connected to the space character register; and the space searching circuit transmits the data stream of original data according to preset multiple sliding windows, and each sliding window corresponds to a character comparator, and each character comparator simultaneously extracts the preset space character from the space character register and compares the preset space character with a beginning character of the corresponding sliding window, to judge whether the beginning character of each sliding window is the preset space character.
4. The hardware system for data conversion according to claim 3 , wherein the length detecting circuit comprises a low address arbiter, connected to the character comparators and receiving comparison results output by the character comparators, for detecting the length of the data in the data stream of original data according to two adjacent sliding windows whose beginning character is the space character.
5. The hardware system for data conversion according to claim 4 , wherein the low address arbiter is implemented based on a 74LS148 priority encoder chip.
6. The hardware system for data conversion according to claim 1 , wherein the hardware system further comprises: a multi-input RAM of 32 bit or 64 bit, for temporarily storing the converted data output by the parallel encoding circuit.
7. The hardware system for data conversion according to claim 3 , wherein the preset multiple sliding windows are preset eight sliding windows.
8. The hardware system for data conversion according to claim 7 , wherein the width of each sliding window is 8 bit.
9. The hardware system for data conversion according to claim 1 , wherein the space character is a comma, a semicolon, or a space symbol.
10. A storage device, comprising the hardware system for data conversion according to claim 1 .
11. A storage device, comprising the hardware system for data conversion according to claim 2 .
12. A storage device, comprising the hardware system for data conversion according to claim 3 .
13. A storage device, comprising the hardware system for data conversion according to claim 4 .
14. A storage device, comprising the hardware system for data conversion according to claim 5 .
15. A storage device, comprising the hardware system for data conversion according to claim 6 .
16. A storage device, comprising the hardware system for data conversion according to claim 7 .
17. A storage device, comprising the hardware system for data conversion according to claim 8 .
18. A storage device, comprising the hardware system for data conversion according to claim 9 .