61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
#ifndef UART_H
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#define UART_H
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/* Hardware registers for a supporting UART to the ZPUFlex project. */
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#ifdef __cplusplus
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extern "C" {
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#endif
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// Method to direct output to stdout or stddebug.
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void set_serial_output(uint8_t);
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int putchar(int);
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void _putchar(unsigned char);
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int dbgputchar(int);
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void _dbgputchar(unsigned char);
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int puts(const char *);
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char getserial();
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char getdbgserial();
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int8_t getserial_nonblocking();
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int8_t getdbgserial_nonblocking();
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// Macros to put breadcrumbs out to the screen, for reference and debugging purposes.
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#define breadcrumb(x) UART_DATA(UART0)=x;
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// Debug only macros which dont generate code when debugging disabled.
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#ifdef DEBUG
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// Macro to print to the debug channel.
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//
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#define debugf(a, ...) ({\
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set_serial_output(1);\
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printf(a, ##__VA_ARGS__);\
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set_serial_output(0);\
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})
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#define dbg_putchar(a) ({\
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dbgputchar(a);\
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})
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#define dbg_puts(a) ({\
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set_serial_output(1);\
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puts(a);\
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set_serial_output(0);\
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})
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#define dbg_breadcrumb(x) UART_DATA(UART1)=x;
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#else
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#define dbg_putchar(a)
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#define dbg_puts(a)
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#define debugf(a, ...)
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#define dbg_breadcrumb(x)
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif // UART_H
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