Abstract:
The present invention provides a method for capturing data suitable for creating a Serial ATA eye diagram. A Serial ATA host controller including a first and a second Serial ATA ports is powered up, where receive lines of the first Serial ATA port are short-circuited to receive lines of the second Serial ATA port, and the first Serial ATA port is communicatively coupled to a Serial ATA drive. An initialization pattern from the Serial ATA drive is received by the first and the second Serial ATA ports. An ALIGN/SYNC pattern is transmitted over transmit lines of the second Serial ATA port. Data transmitted over the transmit lines of the second Serial ATA port is captured using a high impedance differential probe and an oscilloscope. The captured data may be used to create a Serial ATA eye diagram for the second Serial ATA port on the oscilloscope.
Abstract:
The present invention provides a method for capturing data suitable for creating a Serial ATA eye diagram. A Serial ATA host controller including a first and a second Serial ATA ports is powered up, where receive lines of the first Serial ATA port are short-circuited to receive lines of the second Serial ATA port, and the first Serial ATA port is communicatively coupled to a Serial ATA drive. An initialization pattern from the Serial ATA drive is received by the first and the second Serial ATA ports. An ALIGN/SYNC pattern is transmitted over transmit lines of the second Serial ATA port. Data transmitted over the transmit lines of the second Serial ATA port is captured using a high impedance differential probe and an oscilloscope. The captured data may be used to create a Serial ATA eye diagram for the second Serial ATA port on the oscilloscope.