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48 lines
838 B
48 lines
838 B
/* See LICENSE of license details. */
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#include <stdint.h>
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#include <string.h>
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#include <errno.h>
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#include <gd32vf103.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include "stub.h"
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#include "gd32vf103.h"
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typedef unsigned int size_t;
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extern int _put_char(int ch) __attribute__((weak));
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ssize_t _write(int fd, const void* ptr, size_t len) {
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const uint8_t * current = (const uint8_t *) ptr;
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// if (isatty(fd))
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{
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for (size_t jj = 0; jj < len; jj++) {
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_put_char(current[jj]);
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if (current[jj] == '\n') {
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_put_char('\r');
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}
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}
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return len;
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}
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return _stub(EBADF);
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}
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int puts(const char* string) {
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return _write(0, (const void *) string, strlen(string));
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}
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int _put_char(int ch)
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{
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usart_data_transmit(USART0, (uint8_t) ch );
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while (usart_flag_get(USART0, USART_FLAG_TBE)== RESET){
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}
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return ch;
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}
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