『COM口』即係『串口』,祗有9針『9PIN』.係上世紀八九拾年代電腦. 記得有個手寫板係『COM口』. 家時電腦都冇『COM口』, 祗有伺服器主板有『COM口』.『SUPERMICR X10SDV-4C-TLN2F』.
宜家改用網絡仝『COM串口』設備通信,改用『minicom』程式.
安装『minicom』
| opkg install minicom |
或者『OpenWrt編譯』『sudo make menuconfig』時加入
| Utilities->Terminal->minicom |
登入配置菜單
| minicom -s |
| configuration | 配置界面 |
| Filenames and paths | |
| File transfer protocols | |
| Serial port setup | 串口設定 |
| Modem and dialing | |
| Screen | |
| Keyboard and Misc | |
| Save setup as dfl | 存儲配置參數係minirc.dfl |
| Save setup as.. | 另存配置參數 |
| Exit | 返回minicom |
| Exit from Minicom | 退出minicom返回Linux |
撳『Serial port setup』填寫COM配置
| COM配置 | 參數 | |
| Serial Device | /dev/ttyUSB0 | USB0 |
| Lockfile Location | /var/lock | |
| Callin Program | ||
| Callout Program | ||
| Bps/Par/Bits | 115200 8N1 | 波特率 |
| Hardware Flow Control | Yes | |
| Software Flow Control | No | |
| RS485 Enable | No | |
| RS485 Rts On Send | No | |
| RS485 Rts After Send | No | |
| RS485 Terminate Bus | No | |
| RS485 Delay Rts Before | 0 | |
| RS485 Delay Rts After | 0 |
發送AT指令
| AT+GTUSBMODE ? | 查詢撥號模式 |
| AT+GTUSBMODE = 39 | 設置撥號模式 |
| AT+GTAUTOCONNECT = 1 | 設自動撥號 |
| AT+CFUN = 15 | 重啟模塊 |
| ATI | 返回版本番號 |
| AT+CPIN ? | 插入SIN卡未? |
| AT+CEREG ? | 網絡註冊狀態 |
| AT+COPS ? | 運營商信息 |
| AT+CESQ | 信号質量 |
| ATI+GMI ? | 返回製造商 |
| ATI+CGMI ? | 返回製造商 |
| AT+GMM ? | 返回模塊型號 |
| AT+CGMM ? | 返回模塊型號 |
| AT+GMR ? | 軟件版本型號 |
| AT+CGMR ? | 軟件版本型號 |
| AT+GSN ? | 返回模塊IMEI碼 |
| AT+CGSN ? | 返回模塊IMEI碼 |
| AT$QCRMCALL = 0,1 | 斷開連線 |
| AT+CDGCONT = 1,”IPV4V6”,“3GNET” | 撥號設置 |
| 1 | |
| IPV4V6 | ipv4,ipv6 |
| 3GNET | 聯通 |
| CMNET | 移動 |
| CTNET | 電信 |
| AT$QCRMCALL = 1,1,3,2,1 | |
| 3 | IPV4 |
| 1 | IPV6 |
| 2, | IPV4,IPV6 |
撳『q』鍵退出minicom