Motorola M68HC08 - Manual (Page 150)

User Guide
Designer Reference Manual DRM028 — Rev 0
150 User Guide MOTOROLA
it is recommended to change START_INCR_OOUTREG by PC
master software. (If it is a problem to start the motor, then
I_CNTR_FOK can also be changed from default 0x03, but not
recommended!)
17. If the motor starts and continues running, after you repeatedly
start/stop, the start-up parameters are set properly
18. Open const_cust_x.h and modify parameters with the final
variable values PER_CMT_START_US,
START_INCR_OOUTREG, evaluated with PC master software.
19. Change the software back to normal, set speed regulator
parameters to:
20. #define SPEED_PIREG_P_GAIN 64
#define SPEED_PIREG_I_GAIN 0
21. in const_cust_x.h file to enable speed regulation
22. Build the code (see Software Execution and Build )
6.5.6 Software Customizing to Motor — Speed Control Setting
When the motor commutation setting is done, the speed control
parameters need to be set.
For settings which must be done, follow the labels MUST_CHANGE_nn,
MUST_CHANGE_EXPER_nn in file const_cust_x.h.
For changes which can be done (but usually are not necessary), follow
the labels CAN_CHANGE_nn, CAN_CHANGE_EXPER_nn in file
const_cust_x.h
Number of commutations per motor revolution:
/* MUST_CHANGE_9: */
#define COMMUT_REV 18.0
Range: <0,255>
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
.
..