10位二进制AD值转为3位16进制，通过UART发送

最新推荐文章于 2021-09-10 12:19:37 发布

赵琦丶

最新推荐文章于 2021-09-10 12:19:37 发布

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分类专栏： ARM9基于2410和2440 文章标签： 2410AD 2440AD

本文链接：https://blog.youkuaiyun.com/qq_23541951/article/details/79008587

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ARM9基于2410和2440 专栏收录该内容

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void display_adc3(int val)
{
	int ch=val;
		ch=ch&0x300;
		ch=ch>>8;
			switch(ch)
			{
			case 0:uart_txd('0');break;
			case 1:uart_txd('1');break;
			case 2:uart_txd('2');break;
			case 3:uart_txd('3');break;
			case 4:uart_txd('4');break;
			case 5:uart_txd('5');break;
			case 6:uart_txd('6');break;
			case 7:uart_txd('7');break;
			case 8:uart_txd('8');break;
			case 9:uart_txd('9');break;
			case 10:uart_txd('A');break;
			case 11:uart_txd('B');break;
			case 12:uart_txd('C');break;
			case 13:uart_txd('D');break;
			case 14:uart_txd('E');break;
			case 15:uart_txd('F');break;

			default:
				break;
			}



		ch=val;
		ch=ch&0xF0;
		ch=ch>>4;

			switch(ch)
			{
			case 0:uart_txd('0');break;
			case 1:uart_txd('1');break;
			case 2:uart_txd('2');break;
			case 3:uart_txd('3');break;
			case 4:uart_txd('4');break;
			case 5:uart_txd('5');break;
			case 6:uart_txd('6');break;
			case 7:uart_txd('7');break;
			case 8:uart_txd('8');break;
			case 9:uart_txd('9');break;
			case 10:uart_txd('A');break;
			case 11:uart_txd('B');break;
			case 12:uart_txd('C');break;
			case 13:uart_txd('D');break;
			case 14:uart_txd('E');break;
			case 15:uart_txd('F');break;
			default:
				break;
			}



		ch=val;
		ch=ch&0xF;
		switch(ch)
			{
			case 0:uart_txd('0');break;
			case 1:uart_txd('1');break;
			case 2:uart_txd('2');break;
			case 3:uart_txd('3');break;
			case 4:uart_txd('4');break;
			case 5:uart_txd('5');break;
			case 6:uart_txd('6');break;
			case 7:uart_txd('7');break;
			case 8:uart_txd('8');break;
			case 9:uart_txd('9');break;
			case 10:uart_txd('A');break;
			case 11:uart_txd('B');break;
			case 12:uart_txd('C');break;
			case 13:uart_txd('D');break;
			case 14:uart_txd('E');break;
			case 15:uart_txd('F');break;
			default:
				break;
			}



		uart_txd('\n');
		uart_txd('\r');
}

display_adc3(int val); vla为获得的10位二进制AD值。

uart_txd（char c）;为UART发送字符函数，可见UART篇。