AN1910 Freescale Semiconductor / Motorola, AN1910 Datasheet - Page 23

• Manufacturer Part Number: AN1910
• Description: 3-Phase AC Motor Control with V/Hz Speed Closed Loop Using the DSP56F80X
• Manufacturer: Freescale Semiconductor / Motorola

7.4 Interrupts
7.5 PC Master
8.
The access to individual driver functions is provided by the ioctl function calls.
The SDK serves the interrupt routine calls and automatically clears the interrupt flags. The user defines
the callback functions called during interrupts. The callback functions are assigned during the drivers
initialization - open(). The callback function assignment is defined as one item of initialization
structure and 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 tool for development
of algorithms and applications. It consists of component running on a PC and a part 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. It is set automatically by PC Master driver.
The detailed PC Master description is provided by the PC Master User Manual.
Table 8-1
the DSP memory is still available for other tasks.
•
•
•
•
DSP Usage
(in 16-Bit Words)
Program FLASH
Include the driver support to the appconfig.h
Fill the 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
Data FLASH
Table 8-1. RAM and FLASH Memory Usage for SDK2.3 and CW 4.0
Data RAM
Memory
displays the required memory to run the 3-phase AC V/Hz close loop application. A part of
3-Phase AC Motor Control with V/Hz Speech Closed Loop
#define INCLUDE_SCI
#define INCLUDE_PCMASTER
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Application + Stack
855 + 352 stack
/* SCI support */
/* PC Master support */
14638
Used
436
Application Without
PC Master, SCI
523 + 352 stack
Used
7421
436
DSP Usage
23