[问答]

怎么修改驱动模式

2362 总线

问答对人有帮助，内容完整，我也想知道答案 0 当我使用立方体ICE和21x34 POD实践修改IO端口时，POD只将P17连接到电压表，没有其他外部组件。代码让我迷惑。（P.S.设计者5）---------------------------------------------------------PRT0GS和= ~0x08；/ /与全局总线PRT0DM2＝0x08断开；PRT0DM1＆AMP；＝0x08；//DM（2:0]＝100，慢强高，高Z低PRT0DM0＆AMP= ~0x08；PRT0DR和= ~0x08；PRT3GS和＝0x02；/ /与全局总线PRT3DM2＝0x02断开；PRT3DM1＆AMP= ~0x02；//DM（2:0]＝100，慢强高，高Z低PRT3DM0和；= ~0x02；PRT3DR＝0x02；---------------------------------------------------------------P17被修改为低NORMA。LLY，然后修改p31，p17变高。谁能告诉我为什么？拜托。我忘了P17和P31都连接到模拟总线……忘掉我的愚蠢。以上来自于百度翻译以下为原文 When i use cube ice and 21x34 pod practice modify IO port, Pod only connect P17 to voltage meter, no other external component. the code make me confuse. (PS. Designer 5.0) ------------------------------------------------------------------------------------------------ PRT0GS &= ~0x08; //disconnect from global bus PRT0DM2 \|= 0x08; PRT0DM1 &= ~0X08; //DM[2:0]=100, Slow strong high, high-z low PRT0DM0 &= ~0x08; PRT0DR &= ~0x08; PRT3GS &= ~0x02; //disconnect from global bus PRT3DM2 \|= 0x02; PRT3DM1 &= ~0x02; //DM[2:0]=100, Slow strong high, high-z low PRT3DM0 &= ~0x02; PRT3DR \|= 0x02; ----------------------------------------------------------------------------------------------- P17 is modified to low normally, then modify P31 , P17 become high..... Can any one tell me why ? please. ===================================================== I forget the P17 and P31 both connect to analog bus.... Forget my stupidity. 0
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答案对人有帮助，有参考价值 0 嗨，我不知道完整的应用在这种情况下你做的是什么。但我可以解释这些代码行在做什么。prt0gs &；= ~ 0x08；/ /断开从全球汽车prt0dm2 \| = 0x08；prt0dm1 &；= ~ 0x08；/ / DM [2:0] = 100，慢强高，高阻低prt0dm0 &；= ~ 0x08；prt0dr &；= ~ 0x08；它将断开引脚P0 [ 3 ]从全局总线是否连接前。然后它将改变P0 [ 3 ]开漏极驱动高驱动模式。然后，P0 [ 3 ]转向高阻抗输出写入“0”的数据登记。prt3gs &；= ~ 0x02；/ /断开从全局总线prt3dm2 \| = 0x02；prt3dm1 &；= ~ 0x02；/ / DM [2:0] = 100，慢强高，高阻低prt3dm0 &；= ~ 0x02；prt3dr \| = 0x02；它将断开销[ 1 ]从P3全局总线如果是连接前。然后它将改变为P3 [ 1 ]开漏极驱动高驱动模式。然后P3 [1 ]转向高输出通过写“1”其数据登记。最好的问候，Sachin Gupta 以上来自于百度翻译以下为原文 Hi, I do not know what is complete application and in which context you are doing it. But I can explain what these lines of code are doing. PRT0GS &= ~0x08; //disconnect from global bus PRT0DM2 \|= 0x08; PRT0DM1 &= ~0X08; //DM[2:0]=100, Slow strong high, high-z low PRT0DM0 &= ~0x08; PRT0DR &= ~0x08; It will disconnect pin P0[3] from global bus if it was connected earlier. Then it will change drive mode for P0[3] to open drain drive high. Then P0[3] is turned to High-Z output by writing a '0' to its data register. PRT3GS &= ~0x02; //disconnect from global bus PRT3DM2 \|= 0x02; PRT3DM1 &= ~0x02; //DM[2:0]=100, Slow strong high, high-z low PRT3DM0 &= ~0x02; PRT3DR \|= 0x02; It will disconnect pin P3[1] from global bus if it was connected earlier. Then it will change drive mode for P3[1] to open drain drive high. Then P3[1] is turned to High output by writing a '1' to its data register. Best regards, Sachin Gupta

2019-2-13 13:59:04 评论举报王建华