https://w.electrodragon.com/w/index.php?action=history&feed=atom&title=Printf
Printf - Revision history
2026-06-05T13:41:07Z
Revision history for this page on the wiki
MediaWiki 1.37.2
https://w.electrodragon.com/w/index.php?title=Printf&diff=31373&oldid=prev
Chao at 04:04, 24 May 2021
2021-05-24T04:04:17Z
<p></p>
<p><b>New page</b></p><div>* printf("%#08x\n", i); // gives 0x000007<br />
* printf("addr:0x%x, data:0x%x\r\n", addr, flash_data); // ... 0xFF<br />
<br />
<br />
* printf("%02X \n", (UINT16)SPIdat); // hex data // 02 表示不足两位，前面补0输出；如果超过两位，则实际输出<br />
30 30 20 20 0D 0A <br />
30 30 20 20 <br />
== Purchar STM32 == <br />
<br />
PUTCHAR_PROTOTYPE<br />
{<br />
/* Place your implementation of fputc here */<br />
/* e.g. write a character to the EVAL_COM1 and Loop until the end of transmission */<br />
HAL_UART_Transmit(&huart1, (uint8_t *)&ch, 1, 0xFFFF);<br />
<br />
return ch;<br />
}<br />
<br />
<br />
* https://www.runoob.com/cprogramming/c-function-printf.html<br />
<br />
[[category: C Function]]</div>
Chao