Texas Instruments SWRU294, User Manual, Page: 34 / 57

SWRU294
Page 34/40
10 SmartRF TrxEB rev. 1.5.0
10.1 Board Overview
Figure 25
– SmartRF TrxEB revision 1.5.0 overview
10.2 Changes from rev. 1.3.0
10.2.1 RC filter on USB MCU reset line
The pull-up resistor R22
on the USB MCU’s reset line (USB_RESET_N) has been removed. It is
replaced by a RC filter (R22 and C50) to remove ripple during reset line state transitions. See the
schematics for EB revision 1.5.0 for more details.
10.2.2 Accelerometer
The onboard accelerometer (A1) has been rotated 180 degrees compared to EB revision 1.3.0.
The accelerometer axes are given in Figure 26. Silk print has been added on the EB backside
indicating the accelerometer axes.
Figure 26
– Accelerometer axes on SmartRF TrxEB rev. 1.5.0
X
Y
Z