Dual serial port data acquisition interface assembly for a data storage device

• US 7,143,202 B2
• Filed: 10/30/2001
• Issued: 11/28/2006
• Est. Priority Date: 07/02/2001
• Status: Expired due to Fees

• Current Assignee: Seagate Technology LLC (Seagate Technology Holdings Plc)
• Original Assignee: Seagate Technology LLC (Seagate Technology Holdings Plc)
• Inventors: Hardy, Paul M., Clark, Arthur J., Tehrani, Bijan
• Primary Examiner(s): Huynh, Kim
• Assistant Examiner(s): SORRELL, ERON J
• Application Number:
  US10/000,626
• Publication Number:
  US 20030005188A1
• Time in Patent Office: 1,855 Days
• Field of Search: 710 15- 19, 710 72- 74, 714/47
• US Class Current: 710/15
• CPC Class Codes: G06F 3/0607 by facilitating the process of upgrading existing storage systems, e.g. for improving compatibility between host and storage device
• CPC Class Codes: G06F 3/0635 by changing the path, e.g. traffic rerouting, path reconfiguration
• CPC Class Codes: G06F 3/0661 Format or protocol conversion arrangements
• CPC Class Codes: G06F 3/0676 Magnetic disk device

Abstract

A dual serial port data acquisition interface assembly including a printed circuit board for supporting additional components of the dual serial port assembly, a personal computer peripheral component interconnect connector secured to the printed circuit board for passing data between the printed circuit board and a personal computer. A first serial port connector mounted on the printed circuit transferring communication data and synchronization data between the personal computer and the data storage device through a programmed universal asynchronous receiver/transmitter microchip, and a second serial port connector mounted on the printed circuit board passing a performance data of the servo control circuit from the data storage device through a serial-to-parallel converter to the personal computer.

Claims

1. An apparatus comprising:

a programmed universal asynchronous receiver/transmitter microchip in communication with a first serial port to pass communication data between a host device and a test device; and

a serial-to-parallel converter in communication with a second serial port to pass performance data from a control system of the test device to the host device and to convert said performance data from a serial communication data string to a parallel communication data string.

2. The apparatus of claim 1 in which the first serial port comprises a synchronous serial port.

3. The apparatus of claim 1 in which the second serial port comprises an asynchronous serial port.

4. The apparatus of claim 1 in which the programmed universal asynchronous receiver/transmitter microchip supports an asynchronous full-duplex serial communication protocol.

5. The apparatus of claim 1 in which the serial-to-parallel converter supports a high-speed, one-way, synchronous serial communication protocol used for collecting data from a servo control circuit of a data storage device.

6. The apparatus of claim 4 in which the programmed universal asynchronous receiver/transmitter microchip operates at a rate in excess of three mega-bits per second.

7. The apparatus of claim 5 in which the serial-to-parallel converter performs an acquisition of a real-time data from a servo sector of the data storage device.

8. An apparatus comprising:

a host device analyzing performance data from a control system of a test device; and

a dual serial port data acquisition interface assembly currently communicating with the test device via respective synchronous and asynchronous communication paths, wherein the synchronous communication path provides communication data from the test device, and wherein the asynchronous communication path provides the performance data from the control system.

9. The apparatus of claim 8 in which the test device comprises a data storage device and the control system comprises a servo control circuit of said data storage device.

10. The apparatus of claim 8 in which the dual serial port data acquisition interface assembly converts said performance data from a serial communication data string to a parallel communication data string.

11. The apparatus of claim 8 in which the dual serial port data acquisition interface assembly comprises:

a first serial port configured to pass the communication and synchronization data between the test device and the host device;

a second serial port configured to pass the performance data from the control system of the test device to the host device;

a programmed universal asynchronous receiver/transmitter microchip configured to communicate with the first serial port to control an interface between the host device and the test device; and

a serial-to-parallel converter configured to communicate with the second serial port to convert said performance data from a serial communication data string to a parallel communication data string.

12. An apparatus comprising:

a first serial port passing communication and synchronization data between a data storage device and a host device;

a second serial port passing performance data from a servo control circuit of the data storage device to the host device;

a programmed universal asynchronous receiver/transmitter microchip controlling an interface during passage of the communication and synchronization data; and

a serial-to-parallel converter converting said performance data from a serial communication data string to a parallel communication data string for analysis by the host device.

13. The apparatus of claim 12 in which the first serial port comprises a synchronous serial port.

14. The apparatus of claim 12 in which the second serial port comprises an asynchronous serial port.

15. The apparatus of claim 12 in which the programmed universal asynchronous receiver/transmitter microchip supports an asynchronous full-duplex serial communication protocol.

16. The apparatus of claim 12 in which the serial-to-parallel converter supports a high-speed, one-way, synchronous serial communication protocol used for collecting data from a servo control circuit of a data storage device.

17. The apparatus of claim 12 in which the programmed universal asynchronous receiver/transmitter microchip operates at a rate in excess of three mega-bits per second.

18. The apparatus of claim 12 in which the serial-to-parallel converter performs an acquisition of a real-time data from a servo sector of the data storage device.