Texas Instruments BUF22821 Evaluation board BUF22821EVM-USB BUF22821EVM-USB Datenbogen
Produktcode
BUF22821EVM-USB
BUF22821EVM-USB Software Overview
shows an error that pops up if the computer cannot communicate with the EVM. If you receive
this error, first ensure that the USB cable is properly connected on both ends. This error can also occur if
you connect the USB cable before the USB_DIG_Platform power source. Another possible cause for this
error is a problem with the USB Human Interface Device Driver on the computer you are using. Make sure
that the device is recognized when the USB cable is plugged in; this action is indicated by a
Windows-generated confirmation sound.
you connect the USB cable before the USB_DIG_Platform power source. Another possible cause for this
error is a problem with the USB Human Interface Device Driver on the computer you are using. Make sure
that the device is recognized when the USB cable is plugged in; this action is indicated by a
Windows-generated confirmation sound.
Figure 16. Communication Error with USB_DIG_Platform
6.2
Using the BUF22821 Software
6.2.1
I
2
C Address Selection
As mentioned previously (refer to
), jumper JMP5 is used to set the I
2
C address pin of the
BUF22821.
shows how the hardware and software must both be set to enable communication
between the BUF22821EVM-USB and the software. Without jumper JMP5 and the software address
button configured correctly, the software cannot communicate with the BUF22821 device.
button configured correctly, the software cannot communicate with the BUF22821 device.
Figure 17. JMP5 Setting for Logic
‘
0
’
18
BUF22821EVM-USB Evaluation Board and Software Tutorial
SBOU117
–
September 2011
Copyright
©
2011, Texas Instruments Incorporated