Freescale Semiconductor Flexis Series Demo Board DEMOQE128 DEMOQE128 User Manual
Product codes
DEMOQE128
DEMOQE128 User Manual
43
8.5.4
J16 - Accelerometer 3-axis Signals Connection Jumper ACC_EN
The accelerometer output signals are jumper settable to PTA7, PTA6,
PTC7, and PTA1. PTA6 and PTC7 share the same Y-axis signal. By
default, the Y-axis signal is connected to PTA6.
PTC7, and PTA1. PTA6 and PTC7 share the same Y-axis signal. By
default, the Y-axis signal is connected to PTA6.
Figure 8-14: Accelerometer Signal Output ACC_EN (J16)
8.6
Buzzer
The DEMOQE128 integrates a Piezo Transducer whose resonant frequency
is 4.0KHz. Jumper J19 connects to PTB5 to control this buzzer.
is 4.0KHz. Jumper J19 connects to PTB5 to control this buzzer.
8.6.1
J19 - Buzzer enable jumper BUZ_EN
Enables Buzzer to be controlled by PTB5. This is the default setting.
Figure 8-15: Accelerometer Signal Output ACC_EN (J19)
8.7
IIC Pull-up
The DEMOQE128 provides external pull-up resistors for SCL and SDA lines,
enabled by installing the corresponding jumpers on J20. By default both
jumpers are installed.
enabled by installing the corresponding jumpers on J20. By default both
jumpers are installed.
8.7.1
J20 - IIC Pullup Enable Jumpers IIC_EN
Enables IIC external pullup. This is the default setting.
Figure 8-16: IIC External Pullup Enable IIC_EN (J20)