AN1911 Freescale Semiconductor / Motorola, AN1911 Datasheet - Page 23

• Manufacturer Part Number: AN1911
• Description: 3-Phase AC Motor Control with V/Hz Speed Open Loop Using DSP56F80X
• Manufacturer: Freescale Semiconductor / Motorola

7.4 Interrupts
7.5 PC Master
8.
To use the driver the following step must be done:
The access to individual driver functions is provided by the ioctl function calls.
The SDK serves the interrupt routines calls and automatically clears interrupt flags. The user defines
the callback functions called during interrupts. The callback functions are assigned during the driver’s
initialization - open(). The callback function assignment is defined as one item of initialization
structure which is used as a parameter of function open(). Some drivers define the callback function
in appconfig.h file.
PC Master was designed to provide the debugging, diagnostic and demonstration tools for
development of algorithms and applications. It consists of components running on PC and parts
running on the target development board.
The PC Master application is part of the Motorola Embedded SDK and may be selectively installed
during SDK installation.
To enable the PC Master operation on the target board application, the following lines must be added
to the appconfig.h file:
It automatically includes the SCI driver and installs all necessary services.
The baud rate of the SCI communication is 9600Bd and is set automatically by PC Master driver.
The detailed PC Master description is provided by the PC Master User Manual.
Table
of the DSP memory is still available for other tasks.
•
•
•
•
DSP Usage
shows how much memory is needed to run the 3-phase AC V/Hz open loop application. A part
include the driver support to the appconfig.h
fill configuration structure in the application code for specific drivers (depends on driver type)
initialize the configuration setting in appconfig.h for specific drivers (depends on driver type)
call the open (create) function
(in 16 bit Words)
Program FLASH
Data Flash
Data RAM
Memory
Table 8-1. RAM and FLASH Memory Usage for SDK2.3 and CW 4.0
#define INCLUDE_SCI
#define INCLUDE_PCMASTER
Indirect Power Factor Correction Using DSP56F80X
Freescale Semiconductor, Inc.
For More Information On This Product,
DSP56F803
DSP56F805
Go to: www.freescale.com
Available
32K
2K
4K
Application + Stack
/* SCI support */
/* PC Master support */
845 + 352 stack
14074
Used
430
Application without
PC Master, SCI
513 + 352 stack
Used
6837
430
DSP Usage
23