Freescale Semiconductor Demonstration Board for Freescale MC9S12XHY256 Microcontroller DEMO9S12XHY256 DEMO9S12XHY256 用户手册
产品代码
DEMO9S12XHY256
D E M O 9 S 1 2 X H Y 2 5 6
J U L Y 1 5 , 2 0 1 0
U S E R G U I D E
18
MOTOR CONTROLLER
The MC9S12XHY256 provides multiple PWM Motor Controller outputs suitable to drive
instrument stepper motors or other load requiring a PWM signal. The Motor Controller output
consists of 16 signals which may be arranged as 8 channels of half H-bridge drivers or 4
channels of full/dual H-bridge drivers. All outputs are available on option headers MOTOR0/1
(J3) or MOTOR2/3 (J5). Refer to the DEMO9S12XHY256 Schematic for pin locations. Refer
to the MC9S12XHY Reference Manual for details on use and capability of the Motor Controller
module.
instrument stepper motors or other load requiring a PWM signal. The Motor Controller output
consists of 16 signals which may be arranged as 8 channels of half H-bridge drivers or 4
channels of full/dual H-bridge drivers. All outputs are available on option headers MOTOR0/1
(J3) or MOTOR2/3 (J5). Refer to the DEMO9S12XHY256 Schematic for pin locations. Refer
to the MC9S12XHY Reference Manual for details on use and capability of the Motor Controller
module.
MC Power Input
Motor controller power input is enabled using option jumpers VDDM (JP1), VSSM (JP2), and
JP4. The VDDM and VSSM option jumpers allow the use of alternate input voltage rails if
desired. The J4 option header currently serves no purpose; do not move jumpers from default
postion. connects and disconnects power input to MCU motor controller. Although the MCU
provides 2 VDDM and 2 VSSM motor controller inputs, the connects these inputs at the J4
option header.
JP4. The VDDM and VSSM option jumpers allow the use of alternate input voltage rails if
desired. The J4 option header currently serves no purpose; do not move jumpers from default
postion. connects and disconnects power input to MCU motor controller. Although the MCU
provides 2 VDDM and 2 VSSM motor controller inputs, the connects these inputs at the J4
option header.
Figure 16: Motor Power Input
● JP1
Enables power input to VDDM filter circuit. Allows use of
alternate voltage input if desired
alternate voltage input if desired
● VDDM
● JP2
Enables power input to VSSM filter circuit. Allows use of
alternate voltage input if desired
alternate voltage input if desired
● VSSM
● ● JP4
Do not move jumpers from default position.
● ●
MC PWM Output
Motor Controller PWM output is accessible on connector headers J3 and J5. Each output
header provides access to 2 motor output channels. Figure 17 below shows the pin-out
connections for connectors MORTO0/1 (J3) and MORTOR2/3 (J5).
header provides access to 2 motor output channels. Figure 17 below shows the pin-out
connections for connectors MORTO0/1 (J3) and MORTOR2/3 (J5).