STM32F030 USARTx_CR2寄存器的15位：
Bit 15 SWAP: Swap TX/RX pins
This bit is set and cleared by software.
0: TX/RX pins are used as defined in standard pinout
1: The TX and RX pins functions are swapped. This allows to work in the case of a cross-wired
connection to another UART.
This bit field can only be written when the USART is disabled (UE=0).
{var%20f='http://v.t.sina.com.cn/share/share.php?appkey=1515056452',u=z||d.location,p=['&url=',e(u),'&title=',e(t||d.title),'&source=',e(r),'&sourceUrl=',e(l),'&content=',c||'gb2312','&pic=',e(p||'')].join('');function%20a(){if(!window.open([f,p].join(''),'mb',['toolbar=0,status=0,resizable=1,width=440,height=430,left=',(s.width-440)/2,',top=',(s.height-430)/2].join('')))u.href=[f,p].join('');};if(/Firefox/.test(navigator.userAgent))setTimeout(a,0);else%20a();})(screen,document,encodeURIComponent,'','','https://www.xiaopingtou.cn/data/attach/logo/logo.png', '推荐 xmcsl 的问题《用stm32好多年，现在才知道TX,RX脚可以软件交换，罪过罪过》','https://www.xiaopingtou.net/q-157242.html','页面编码gb2312|utf-8默认gb2312'));){kind=link}
STM32F030 USARTx_CR2寄存器的15位：
Bit 15 SWAP: Swap TX/RX pins
This bit is set and cleared by software.
0: TX/RX pins are used as defined in standard pinout
1: The TX and RX pins functions are swapped. This allows to work in the case of a cross-wired
connection to another UART.
This bit field can only be written when the USART is disabled (UE=0).
STM32F103 USARTx_CR2寄存器的15位没有定义，不过按照ARM的特点，可以设置下15位试试，说不定有惊喜呢？
一周热门 更多>