Advantech PCM-3362 - Manual (Page 52)

PCM-3362 User Manual 44
and 1 high, 3 to low, the pin number should be ‘0x0B/, and then you should
key in the value ‘0x0A’ to write.
– Click the WRITE GPIO DATA button to write the GPIO output pins.
I
2
C
When the application is executed, you can read or write a byte of data through I2C
devices. All data must be read or written in hexadecimal system.
„ Read a byte
– Key in the slave device address in Slave address field.
– Key in the register offset in Register Offset field.
– Click the READ A BYTE button and then a byte of data from the device will
be shown on the Result field.
„ Write a byte
– Key in the slave device address in Slave address field.
– Key in the register offset in Register Offset field.
– Key in the desirous of data in Result field to write to the device.
– Click the WRITE A BYTE button and then the data will be written to the
device through I 2 C.
SMBus
When the application has executed, you can click the radio button to choose to test
each access mode, i.e. Access a byte, Access multiple bytes and Access a word. All
data must be read or written in hexadecimal except the numbers for radio button:
Access multiple bytes mode must be written in decimal. You can test the functional-
ities of the watchdog as follows:
„ Read a byte