Advantech MIO-3260, Руководство пользователя

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51 MIO-3260 User Manual
Chapter 4
S
/W Introduction
&
Installation
 Starting of I2C
– Select an I2C host, before the starting of any operation.
 I2C Protocol: Transfer and Combine
– Choose the protocols, Transfer or Combine, by clicking the radio button.
– When selecting Transfer protocol, the Read and Write button will be func-
tional (Otherwise they will be disabled). For how to read/write through this
protocol, refer to for section Read from I2C Device and section Write to I2C
Device more details.
– When selecting as Combine protocol, WR Combined button will be functional
(Otherwise it will be disabled). For how to read/write through this protocol,
refer to section Write/Read Combined for more details.
 I2C Frequency
– Click Get button to get the current frequency of I2C, and the Set button to set
your desired value for frequency.
– Select radio 0-100k button to insert a value of frequency between 0 to 100
KHz, or select 400kHz to directly fill in the frequency as 400kHz.
 Slave address of the I2C Device
– Select radio button of 7-bit or 10-bit for the slave address, and insert an
address of the device on I2C. If you'd like to know the address of the existing
device, see section Probe for I2C Device for more details.
– Text box of slave address will prevent you from inserting a value that is out of
range.
 Command/Offset of the I2C Device
– Select radio button of Byte, Word or None for the Command.
– Text box of command will prevent you inserting a value that is out of range;
Text box in command region will limit the value in FF h for Byte mode and
FFFF h for Word mode; when mode None is selected, the text box will be dis-
abled.
 Probe for I2C Device
– The Probe function will do an address scan of the selected host, each
detected address stand for a slave address of a slave device connected to
the I2C.
– The detected address will be shown in the result text box in 7-bit or 10-bit for-
mat, depending on your selection of the radio buttons of slave address.
 Read from I2C Device
– Insert the specified slave address and command. For more details of these,
please refer to Slave address and Command.
– Insert the length of data you'd like to read in text box Read Length, and then
click the Read button for read/receive operation.
– The read result will be shown in the Result text box.