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int printf_test(const char *fmt, …) { int chars; char buf[128]; va_list ap; va_start(ap, fmt); chars = vsnprintf(buf, 128, fmt, ap); UserUartSendData((const uint8_t *)buf, chars); va_end(ap); return chars; }

/* withZero=1 0x0123456->“0123456” 包括0 withZero=0 0x0123456->“123456” 不包括0 */ u8 LongToAsc(u32 dwValue, u8 *buffer, u8 withZero) // u32ToAscHex { //0x12345678 //0xabcdefcd u8 k,r,idx,jval=28; u32 flag = 0xffffffff; k=0; for (idx=0; idx<8;

/************************************************************************ Description : IsHexMode=1 1234 -> 0x1234 IsHexMode=0 1234 -> 1234 -> 0x04d2 ************************************************************************/ u8 AscToInt(const u8 pd

u8 Buffercmp(const u8* pBuffer1, const u8* pBuffer2, u16 BufferLength) { while (BufferLength–) { if (*pBuffer1 != *pBuffer2) { return 1; // 错误 } pBuffer1++; pBuffer2++; } return 0; // 正确 }

#include “gd32f30x.h” #include <stdio.h> #include “gd32f307c_eval.h” void gpio_config(void); void timer_config(void); void gpio_config(void) { rcu_periph_clock_enable(RCU_GPIOA); rcu_periph_cloc...

//1->‘1’ 0x0A->‘A’ u8 asc(u8 x) { u8 bret; if (x <= 9) { bret = x + '0'; } else if (x <= 0x0f) { bret = x - 0x0a + 'A'; } else { bret = 'x'; } return bret; }

//‘1’->0x01 ‘f’->0x0f u8 chr(u8 x) { u8 bRet = 0; if ((x>='0') && (x<='9')) { bRet = x - '0'; } else if ((x>='A') && (x<='F')) { bRet = x -...