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15 lines
232 B
C
15 lines
232 B
C
#pragma once
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#ifndef NULL
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#define NULL ((void *)0)
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#endif
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//equal to printf
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//not support : float,64bit integer,
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//support: %d, %x, %s, %c, %p
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void myprintf (const char *fmt, ...);
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//init usart2 for printf
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void myprintf_init();
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