Freescale Semiconductor Microcontrollers, Руководство пользователя

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ColdFire V1 Full Chip Simulation Connection
FCS Visualization Utilities
629 Microcontrollers Debugger Manual
• TERM_TO_WINDOW (sends output to terminal window),
• TERM_TO_BOTH (send output to file and window),
• TERM_TO_FILE (send output to file
fileName
),
• TERM_FROM_KEYS (read from keyboard),
• TERM_FROM_FILE (read input from file
fileName
),
• TERM_APPEND_BOTH (append output to file and window),
• TERM_APPEND_FILE (append output to file
fileName
).
See
terminal.h
for more information.
Using TestTerm
Listing 28.3 shows the functions defined in
termport.h
that can be called to access the
TestTerm component:
Listing 28.3 Functions to Access the TestTerm Component
char GetChar(void);
void PutChar(char ch);
void PutString(char *str);
void InitTermIO(void);
Listing 28.4 gives the source code for the functions in
termport.c
.
Listing 28.4 Functions to Access the TestTerm Component in termport.c
typedef struct {
unsigned char BAUD;
unsigned char SCCR1;
unsigned char SCCR2;
unsigned char SCSR;
unsigned char SCDR;
} SCIStruct;
#define SCI (*((SCIStruct*)(0x0200)))
char GetChar(void)
{
while (!(SCI.SCSR & 0x20)); /* wait for input */
return SCI.SCDR;
}
void PutChar(char ch)
{
while (!(SCI.SCSR & 0x80)); /* wait for output buffer