Lantronix 900-691-R manual Serial Perpheral Interface SPI Settings, To Configure SPI Settings

5: Interface Settings

Serial Perpheral Interface (SPI) Settings

SPI settings pertaining to the bus master device can be modified in the xPico Wi-Fi unit. SPI settings, like line settings, allow for the selection of a protocol to be used with SPI. Changes take effect immediately.

	Table 5-2 SPI Configuration Settings
Line Settings	Description
Name	Enter a name or short description for the line, if desired. By default, there is
	no name specified. This name is for display only.
State	Select to Enable or Disable the SPI.
Protocol	Select the operational protocol for connection to the SPI:
	 None: selects no application to connect to the SPI.
	 Monitor: selects Monitor application to connect to the SPI.
Target Speed	Set the target clock speed of the SPI in Hz (range is 234.375 KHz - 30 MHz).
	The target speed may be lowered to the closest operating speed capability of
	the device. If so, a warning will be noted. 0 or clearing the selection selects
	the minimum speed.
Idle Clock Level	Select the level of the clock or clock polarity (CPOL) when the clock is idle:
	 Low: the idle clock is at a low level. This is equivalent to CPOL=0.
	 High: the idle clock is at a high level. This is equivalent to CPOL=1.
Clock Edge	Select the clock edge or clock phase (CPHA) for latching data:
	 First: each bit is latched on the first edge of the clock. This is equivalent to
	CPHA=0.
	 Second: each bit is latched on the second edge of the clock. This is
	equivalent to CPHA=1.
Bits Per Word	Select the number of bits per word to transfer. Choices in drop-down menu
	are 8 or 16.
First Transfer	Select the first transfer bit of each word. Choicse in drop-down menu include:
	 Most Significant Bit
	 Least Signficant Bit

To Configure SPI Settings

Using Web Manager

To configure the SPI bus master device settings, click SPI in the menu and select Configuration.

Using CLI

To enter the SPI command level: config -> SPI

Using XML

 Include in your file: <statusgroup name = "SPI" instance = "1">

xPico® Wi-Fi® Embedded Device Server User Guide 32