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請問為什麼我在matlab的 command window 開啟port沒反應??
但是在GUI下開啟又正常.....請問各位神人問題在哪邊?? 感謝各位神人。 function result = PLCFNC(num,action) try s=serial('COM3','BaudRate',9600,'Parity','even','DataBits',7,'StopBits',1); seris=s; set(s,'OutputBufferSize',512); set(s,'InputBufferSize',1024); fopen(s); catch errmsg = lasterr; errordlg(['不能打開port: COM3',char(10),'請檢查串口連接或該串口已打開'],'串口打開錯誤'); rethrow(lasterror); end switch num case 0 if (action == 1) tmp = '023730303035034646'; else tmp = '023830303035033030'; end case 1 if (action == 1) tmp = '023730313035033030'; else tmp = '023830313035033031'; end case 2 if (action == 1) tmp = '023730323035033031'; else tmp = '023830323035033032'; end case 3 if (action == 1) tmp = '023730333035033032'; else tmp = '023830333035033033'; end case 4 if (action == 1) tmp = '023730343035033033'; else tmp = '023830343035033034'; end case 5 if (action == 1) tmp = '023730353035033034'; else tmp = '023830353035033035'; end case 6 if (action == 1) tmp = '023730363035033035'; else tmp = '023830363035033036'; end case 7 if (action == 1) tmp = '023730373035033036'; else tmp = '023830373035033037'; end case 10 if (action == 1) tmp = '023730383035033037'; else tmp = '023830383035033038'; end case 11 if (action == 1) tmp = '023730323935033038'; else tmp = '023830393035033039'; end case 12 if (action == 1) tmp = '023730413035033130'; else tmp = '023830413035033131'; end case 13 if (action == 1) tmp = '023730423035033131'; else tmp = '023830423035033132'; end case 14 if (action == 1) tmp = '023730433035033132'; else tmp = '023830433035033133'; end case 15 if (action == 1) tmp = '023730443035033133'; else tmp = '023830443035033134'; end case 16 if (action == 1) tmp = '023730453035033134'; else tmp = '023830453035033135'; end case 17 if (action == 1) tmp = '023730463035033135'; else tmp = '023830463035033136'; end %寫入命令 data = sscanf(tmp,'%02x')'; fwrite(s,data,'uint8'); fclose(s); delete(s); result = 1; end |
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刚开始学习……加油!
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