管脚描述 ======== - 模块采用LCC封装，144个SMT焊盘管脚 .. image:: http://openluat-luatcommunity.oss-cn-hangzhou.aliyuncs.com/images/20200902105714322_723723.png **表格1：管脚描述** - **电源：** +-------------+-------------+-------------+-------------+-------------+ | 管脚名 | 管脚 | 上 | 描述 | 备注 | | | | 电默认状态 | | | +=============+=============+=============+=============+=============+ | VBAT | 57,58, | | 模块主电源 | VBA | | | 59,60 | | | T=3.3V~4.3V | +-------------+-------------+-------------+-------------+-------------+ | V | 7 | | io参 | 最 | | _GLOBAL_1V8 | | | 考电压输出 | 大电流50mA | | | | | | （电 | | | | | | 压不可调） | +-------------+-------------+-------------+-------------+-------------+ | VMMC | 141 | | 输出1.6 | 给MMC供电 | | | | | -3.2V，默认 | | | | | | 电压是3.1V | | +-------------+-------------+-------------+-------------+-------------+ | VCC_LCD | 55 | | 输出1.6 | 给LCD供电 | | | | | -3.3V，默认 | | | | | | 电压是1.8V | | +-------------+-------------+-------------+-------------+-------------+ | GND | 参考管脚图 | | 模块参考地 | | +-------------+-------------+-------------+-------------+-------------+ - **开机控制：** +-------------+-------------+-------------+-------------+-------------+ | 管脚名 | 管脚 | 上 | 描述 | 备注 | | | | 电默认状态 | | | +=============+=============+=============+=============+=============+ | PWRKEY | 21，142 | INPUT | 开机/关 | VBAT电压域 | | | | PULL_UP | 机控制关机 | ，内部上拉 | | | | | ，拉低有效 | | +-------------+-------------+-------------+-------------+-------------+ | RESET_IN_N | 20 | INPUT | 模块 | 1.请注意 | | | | PULL_UP | 复位，内部 | 此复位管脚 | | | | | 上拉到VBAT | 内部上拉到 | | | | | | VBAT，而不 | | | | | | 是上拉到V_G | | | | | | lobale_1V8; | | | | | | 2.内部 | | | | | | 上拉，把管 | | | | | | 脚拉低1s以 | | | | | | 上模块复位 | | | | | | 3.如果不使 | | | | | | 用，建议加 | | | | | | 1uf电容到地 | +-------------+-------------+-------------+-------------+-------------+ - **模块状态指示：** +--------------+------+--------------+--------------+--------------+ | 管脚名 | 管脚 | 上电默认状态 | 描述 | 备注 | +==============+======+==============+==============+==============+ | NET_STATUS | 6 | INPUT | 网络状态指示 | V | | (GPIO_1) | | PULL_DOWN | | CC_LCD电压域 | +--------------+------+--------------+--------------+--------------+ | NET_MODE | 5 | INPUT | 4G网络指示 | V | | (GPIO_4) | | PULL_DOWN | | CC_LCD电压域 | +--------------+------+--------------+--------------+--------------+ | M | 61 | INPUT | 模块 | V_GLOBAL_1V8 | | ODULE_STATUS | | PULL_DOWN | 运行状态指示 | 电压域 | | (GPIO_5) | | | ，高表示开机 | | +--------------+------+--------------+--------------+--------------+ - **USB接口：** ======== ==== =============== ==================== ================== 管脚名 管脚 上电默认状态 描述 备注 ======== ==== =============== ==================== ================== USB_VBUS 71 INPUT PULL_DOWN USB电源，USB插入检测 5V输入 USB_DP 69 USB差分数据+ 90欧姆差分阻抗控制 USB_DM 70 USB差分数据- 90欧姆差分阻抗控制 ======== ==== =============== ==================== ================== - **主串口UART1，用于AT通信：** +--------------+------+--------------+--------------+--------------+ | 管脚名 | 管脚 | 上电默认状态 | 描述 | 备注 | +==============+======+==============+==============+==============+ | UART1_TXD | 67 | | 模块发送数据 | V_GLOB | | | | | | AL_1V8电压域 | +--------------+------+--------------+--------------+--------------+ | UART1_RXD | 368 | | 模块接收数据 | V_GLOB | | | | | | AL_1V8电压域 | +--------------+------+--------------+--------------+--------------+ | UART1_RTS | 65 | INPUT | 模块清除发送 | V_GLOB | | (GPIO_19) | | PULL_DOWN | | AL_1V8电压域 | +--------------+------+--------------+--------------+--------------+ | UART1_CTS | 64 | INPUT | DTE请求发 | V_GLOB | | (GPIO_18) | | PULL_DOWN | 送数据给模块 | AL_1V8电压域 | +--------------+------+--------------+--------------+--------------+ - **辅串口UART2，用于射频校准，同时与内部蓝牙相连：** =================== ==== =============== ============ ================== 管脚名 管脚 上电默认状态 描述 备注 =================== ==== =============== ============ ================== UART2_TXD (GPIO_21) 23 INPUT PULL_DOWN 模块发送数据 V_GLOBAL_1V8电压域 UART2_RXD (GPIO_20) 116 INPUT PULL_DOWN 模块接收数据 V_GLOBAL_1V8电压域 =================== ==== =============== ============ ================== - **调试串口** +------------------------+------+----------------+--------------+--------------------+ | 管脚名 | 管脚 | 上电默认状态 | 描述 | 备注 | +========================+======+================+==============+====================+ | HOST_TXD | 12 | | 调试信息输出 | V_GLOBAL_1V8电压域 | +------------------------+------+----------------+--------------+--------------------+ | HOST_RXD | 11 | | 模块接收数据 | V_GLOBAL_1V8电压域 | +------------------------+------+----------------+--------------+--------------------+ | ZSP_UART_TXD (GPIO_22) | 66 | NPUT PULL_DOWN | 输出CP log | V_GLOBAL_1V8电压域 | +------------------------+------+----------------+--------------+--------------------+ - **I2C** +--------------+------+--------------+-------------+--------------+ | 管脚名 | 管脚 | 上电默认状态 | 描述 | 备注 | +==============+======+==============+=============+==============+ | 2C2_SCL | 41 | INPUT | I2C时钟信号 | 如 | | (GPIO_14) | | PULL_DOWN | | 果配置为I2C | | | | | | 需要外部上拉 | +--------------+------+--------------+-------------+--------------+ | I2C2_SDA | 42 | INPUT | I2C数据信号 | 如 | | (GPIO_15) | | PULL_DOWN | | 果配置为I2C | | | | | | 需要外部上拉 | +--------------+------+--------------+-------------+--------------+ - **模拟语音** ====== ==== ============ =================== ============== 管脚名 管脚 上电默认状态 描述 备注 ====== ==== ============ =================== ============== SPK- 24 Speaker差分信号输出 最大驱动8欧姆 SPK+ 25 Speaker差分信号输出 最大驱动8欧姆 MIC- 26 麦克输入 已内置偏置电路 MIC+ 27 麦克输入 已内置偏置电路 ====== ==== ============ =================== ============== - **SIM卡接口0** +---------+---------+---------+---------+---------+---------+---------+ | 管脚名 | 管脚 | 上电默 | I/O | 管 | 电 | 备注 | | | | 认状态 | | 脚描述 | 气特性 | | +=========+=========+=========+=========+=========+=========+=========+ | U | 14 | | P | USI | **3V:** | 模 | | SIM_VDD | | | | M卡供电 | VOLm | 块可以 | | | | | | | ax=0.4V | 自动识 | | | | | | | VOHm | 别1.8V | | | | | | | in=2.7V | 或者3V( | | | | | | | ** | U)SIM卡 | | | | | | | 1.8V:** | | | | | | | | VOLma | | | | | | | | x=0.36V | | | | | | | | VOHmi | | | | | | | | n=1.62V | | +---------+---------+---------+---------+---------+---------+---------+ | US | 15 | | I/O | USIM卡 | 同上 | 同上 | | IM_DATA | | | | 数据线 | | | +---------+---------+---------+---------+---------+---------+---------+ | U | 16 | | O | USIM卡 | 同上 | 同上 | | SIM_CLK | | | | 时钟线 | | | +---------+---------+---------+---------+---------+---------+---------+ | USI | 17 | | O | USIM卡 | 同上 | 同上 | | M_RST_N | | | | 复位线 | | | +---------+---------+---------+---------+---------+---------+---------+ | USIM_CD | 13 | | I | U | VILmi | 电压域 | | (G | | | | SIM卡在 | n=-0.3V | 是V_GLO | | PIO_23) | | | | 位检测 | VILm | BAL_1V8 | | | | | | | ax=0.6V | 不用 | | | | | | | VIHm | 则悬空 | | | | | | | in=1.2V | | | | | | | | VIHm | | | | | | | | ax=2.0V | | +---------+---------+---------+---------+---------+---------+---------+ - **ADC** +--------+------+-----------+-----+-----------+-----------+-----------+ | 管脚名 | 管脚 | 上电 | I/O | 管脚描述 | 电气特性 | 备注 | | | | 默认状态 | | | | | +========+======+===========+=====+===========+===========+===========+ | ADC2 | 45 | | I | 模 | 输 | ADC分辨 | | | | | | 数转换器 | 入范围\ * | 率12bits | | | | | | | *0~VBAT** | 不 | | | | | | | | 用则悬空 | +--------+------+-----------+-----+-----------+-----------+-----------+ | ADC3 | 44 | | I | 模 | 输 | ADC分辨 | | | | | | 数转换器 | 入范围\ * | 率12bits | | | | | | | *0~VBAT** | 不 | | | | | | | | 用则悬空 | +--------+------+-----------+-----+-----------+-----------+-----------+ - **射频接口** ======== ==== ============ === ============ ============== ==== 管脚名 管脚 上电默认状态 I/O 管脚描述 电气特性 备注 ======== ==== ============ === ============ ============== ==== LTE_ANT 49 I/O LTE天线接口 50欧姆特性阻抗 WiFi_ANT 35 I/O WiFi天线接口 50欧姆特性阻抗 ======== ==== ============ === ============ ============== ==== - **USB_BOOT** +---------+---------+---------+---------+---------+---------+---------+ | 管脚名 | 管脚 | 上电默 | I/O | 管 | 电 | 备注 | | | | 认状态 | | 脚描述 | 气特性 | | +=========+=========+=========+=========+=========+=========+=========+ | U | 115 | INPUT | I | 在开 | | 电压域 | | SB_BOOT | | PU | | 机之前 | | 是V_GLO | | KEYIN0 | | LL_DOWN | | 上拉到 | | BAL_1V8 | | | | | | V_GLOBA | | 不用 | | | | | | L_1V8， | | 则悬空 | | | | | | 模块会 | | | | | | | | 强行进 | | | | | | | | 入USB下 | | | | | | | | 载模式 | | | +---------+---------+---------+---------+---------+---------+---------+ - **LCD接口** +---------+---------+---------+---------+---------+---------+---------+ | 管脚名 | 管脚 | 上电默 | I/O | 管 | 电 | 备注 | | | | 认状态 | | 脚描述 | 气特性 | | +=========+=========+=========+=========+=========+=========+=========+ | LCD_CS | 2 | INPUT | O | SPI LCD | VILmi | 注意电 | | WAK | | PU | | 片选 | n=-0.3V | 压域是 | | EUP_OUT | | LL_DOWN | | | VILm | VCC_LCD | | ( | | | | | ax=0.6V | 不用 | | GPIO_3) | | | | | VIHm | 则悬空 | | | | | | | in=1.2V | | | | | | | | VIHm | | | | | | | | ax=2.0V | | | | | | | | VOHm | | | | | | | | in=VCC_ | | | | | | | | LCD*0.7 | | | | | | | | VOLm | | | | | | | | ax=VCC_ | | | | | | | | LCD*0.3 | | +---------+---------+---------+---------+---------+---------+---------+ | LCD_CLK | 1 | INPUT | O | SPI LCD | 同上 | 同上 | | AP | | PU | | 时 | | | | _WAKEUP | | LL_DOWN | | 钟信号 | | | | _MODULE | | | | | | | | ( | | | | | | | | GPIO_2) | | | | | | | +---------+---------+---------+---------+---------+---------+---------+ | L | 63 | INPUT | O | SPI LCD | 同上 | 同上 | | CD_DATA | | PU | | 数 | | | | ( | | LL_DOWN | | 据信号 | | | | GPIO_0) | | | | | | | +---------+---------+---------+---------+---------+---------+---------+ | LC | 3 | INPUT | O | SPI LCD | 同上 | 同上 | | D_FMARK | | PU | | 帧同 | | | | | | LL_DOWN | | 步信号 | | | +---------+---------+---------+---------+---------+---------+---------+ | LCD_RST | 4 | INPUT | O | SPI LCD | 同上 | 同上 | | | | PU | | 复 | | | | | | LL_DOWN | | 位信号 | | | +---------+---------+---------+---------+---------+---------+---------+ | LCD_SEL | 5 | INPUT | O | SPI LCD | 同上 | 同上 | | N | | PU | | 选择 | | | | ET_MODE | | LL_DOWN | | | | | | ( | | | | | | | | GPIO_4) | | | | | | | +---------+---------+---------+---------+---------+---------+---------+ | LCD_DC | 6 | INPUT | O | SPI LCD | 同上 | 同上 | | NET | | PU | | 数据命 | | | | _STATUS | | LL_DOWN | | 令选择 | | | | ( | | | | | | | | GPIO_1) | | | | | | | +---------+---------+---------+---------+---------+---------+---------+ - **SPI接口** +---------+---------+---------+---------+---------+---------+---------+ | 管脚名 | 管脚 | 上电默 | I/O | 管 | 电 | 备注 | | | | 认状态 | | 脚描述 | 气特性 | | +=========+=========+=========+=========+=========+=========+=========+ | SP | 37 | INPUT | IO | SPI数 | VILmi | 电压域 | | I1_DOUT | | PU | | 据输出 | n=-0.3V | 是V_GLO | | （GP | | LL_DOWN | | | VILm | BAL_1V8 | | IO_11） | | | | | ax=0.6V | 不用 | | | | | | | VIHm | 则悬空 | | | | | | | in=1.2V | | | | | | | | VIHm | | | | | | | | ax=2.0V | | | | | | | | VOHmin= | | | | | | | | V_ | | | | | | | | GLOBAL_ | | | | | | | | 1V8*0.7 | | | | | | | | VOLmax= | | | | | | | | V_ | | | | | | | | GLOBAL_ | | | | | | | | 1V8*0.3 | | +---------+---------+---------+---------+---------+---------+---------+ | S | 38 | INPUT | IO | SPI数 | 同上 | 同上 | | PI1_DIN | | PU | | 据输入 | | | | （GP | | LL_DOWN | | | | | | IO_12） | | | | | | | +---------+---------+---------+---------+---------+---------+---------+ | S | 39 | INPUT | IO | SPI时 | 同上 | 同上 | | PI1_CLK | | PU | | 钟信号 | | | | （G | | LL_DOWN | | | | | | PIO_9） | | | | | | | +---------+---------+---------+---------+---------+---------+---------+ | SPI1_CS | 40 | INPUT | IO | SPI片 | 同上 | 同上 | | （GP | | PU | | 选信号 | | | | IO_10） | | LL_DOWN | | | | | +---------+---------+---------+---------+---------+---------+---------+ - **MMC接口** +---------+---------+---------+---------+---------+---------+---------+ | 管脚名 | 管脚 | 上电默 | I/O | 管 | 电 | 备注 | | | | 认状态 | | 脚描述 | 气特性 | | +=========+=========+=========+=========+=========+=========+=========+ | MMC1_D | 28 | INPUT | IO | 通 | VILmi | 注意 | | AT2（GP | | PULL_UP | | 用GPIO | n=-0.3V | 电压域 | | IO_27） | | | | 目前 | VILm | 是VMMC | | | | | | 不支持S | ax=0.6V | 不用 | | | | | | DIO接口 | VIHm | 则悬空 | | | | | | | in=1.2V | | | | | | | | VIHm | | | | | | | | ax=2.0V | | | | | | | | V | | | | | | | | OHmin=V | | | | | | | | MMC*0.7 | | | | | | | | V | | | | | | | | OLmax=V | | | | | | | | MMC*0.3 | | +---------+---------+---------+---------+---------+---------+---------+ | MMC1_D | 29 | INPUT | IO | 同上 | 同上 | 同上 | | AT3（GP | | PULL_UP | | | | | | IO_28） | | | | | | | +---------+---------+---------+---------+---------+---------+---------+ | MMC1_ | 30 | INPUT | IO | 同上 | 同上 | 同上 | | CMD（GP | | PULL_UP | | | | | | IO_24） | | | | | | | +---------+---------+---------+---------+---------+---------+---------+ | M | 31 | OUTPUT | IO | 同上 | 同上 | 同上 | | MC1_CLK | | CLK | | | | | +---------+---------+---------+---------+---------+---------+---------+ | MMC1_D | 32 | INPUT | IO | 同上 | 同上 | 同上 | | AT0（GP | | PULL_UP | | | | | | IO_25） | | | | | | | +---------+---------+---------+---------+---------+---------+---------+ | MMC1_D | 30 | INPUT | IO | 同上 | 同上 | 同上 | | AT1（GP | | PULL_UP | | | | | | IO_26） | | | | | | | +---------+---------+---------+---------+---------+---------+---------+ - **GPIO** +---------+---------+---------+---------+---------+---------+---------+ | 管脚名 | 管脚 | 上电默 | I/O | 管 | 电 | 备注 | | | | 认状态 | | 脚描述 | 气特性 | | +=========+=========+=========+=========+=========+=========+=========+ | AP | 1 | INPUT | I | 唤 | VILmi | 电压域 | | _WAKEUP | | PU | | 醒模块 | n=-0.3V | 是V_GLO | | _MODULE | | LL_DOWN | | | VILm | BAL_1V8 | | LCD_CLK | | | | | ax=0.6V | 拉低唤 | | ( | | | | | VIHm | 醒模块 | | GPIO_2) | | | | | in=1.2V | | | | | | | | VIHm | | | | | | | | ax=2.0V | | | | | | | | VOHmin= | | | | | | | | V_ | | | | | | | | GLOBAL_ | | | | | | | | 1V8*0.7 | | | | | | | | VOLmax= | | | | | | | | V_ | | | | | | | | GLOBAL_ | | | | | | | | 1V8*0.3 | | +---------+---------+---------+---------+---------+---------+---------+ | WAK | 2 | INPUT | O | 唤醒AP | 同上 | 电压域 | | EUP_OUT | | PU | | | | 是V_GLO | | LCD_CS | | LL_DOWN | | | | BAL_1V8 | | ( | | | | | | | | GPIO_3) | | | | | | | +---------+---------+---------+---------+---------+---------+---------+ | GPIO_7 | 18 | INPUT | IO | 通 | | 电压域 | | | | PU | | 用GPIO | | 是V_GLO | | | | LL_DOWN | | | | BAL_1V8 | | | | | | | | 不用 | | | | | | | | 则悬空 | +---------+---------+---------+---------+---------+---------+---------+ | GPIO_13 | 62 | INPUT | IO | 请注 | | 电压域 | | | | PU | | 意上电 | | 是V_GLO | | | | LL_DOWN | | 的时候 | | BAL_1V8 | | | | | | 不要把 | | 不用 | | | | | | GPIO_1 | | 则悬空 | | | | | | 3拉高到 | | | | | | | | V_GLOBA | | | | | | | | L_1V8， | | | | | | | | 如 | | | | | | | | 果上电 | | | | | | | | 的时候 | | | | | | | | 拉高到 | | | | | | | | V_GLOBA | | | | | | | | L_1V8， | | | | | | | | 模块会 | | | | | | | | 进入校 | | | | | | | | 准模式 | | | | | | | | ，不正 | | | | | | | | 常开机 | | | +---------+---------+---------+---------+---------+---------+---------+ - **保留管脚** +---------+---------+---------+-----+---------+---------+---------+ | 管脚名 | 管脚 | 上电默 | I/O | 管 | 电 | 备注 | | | | 认状态 | | 脚描述 | 气特性 | | +=========+=========+=========+=====+=========+=========+=========+ | R | 34 | | | 悬 | | 悬 | | ESERVED | ,43,73, | | | 空处理 | | 空处理 | | | 84,117, | | | | | | | | 140, | | | | | | | | 113,114 | | | | | | +---------+---------+---------+-----+---------+---------+---------+