双模蓝牙模块
BR2551e-s(c)资料汇总
BR2551e-u1资料汇总
双模蓝牙模块问答集
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双模蓝牙模块问答集
# 1、BR8051A01透传标准版程序引脚功能分配 | BR8051A01 | | BR2551e(-sc) | | BR2551e-u1 | | 透传标准版程序缺省功能 | | --- | --- | --- | --- | --- | --- | --- | | 芯片脚位|IO名称|模块脚位|IO名称|模块脚位|IO名称| | |4 |DP|27 |DP | / | / |USB_DP| |5 |DM|28 |DM | / | / |USB_DM| |11|GPIO0|21|UART_TX|21|UART_TX|透传串口UART0_TX| |12|GPIO1|20|UART_RX|20|UART_RX|透传串口UART0_RX| |13|GPIO2|15|UART_RTS|15|UART_RTS|透传串口UART0_RTS| |14|GPIO3|13|UART_CTS|13|UART_CTS|透传串口UART0_CTS| |16|GPIO6|3|BOOT|3|BOOT|拉低进入BOOT烧录程序模式,悬空或拉高,正常启动| |17|GPIO7|6|GPIO7|10|GPIO7|无功能| |18|GPIO4|17/18|GPIO4|11|GPIO4|无功能| |19|GPIO5|16|GPIO5|12|GPIO5|缺省蓝牙连接状态输出,连接后输出高电平,没连接输出低电平| |20|GPIO15|10|GPIO15|6|GPIO15|缺省串口UART1_TX调试信息输出| |21|GPIO16|14|CONN/DISC|14|GPIO16|缺省蓝牙断连输入,缺省高电平,模块外部拉低,产生蓝牙断连动作| |22|GPIO17|11|I2C_SCL|16|GPIO17|接苹果加密芯片,不使用,可悬空| |23|GPIO18|12|I2C_SDA|17/18|GPIO18|接苹果加密芯片,不使用,可悬空 | |25|GPIO19|22|GPIO19|22|GPIO19|无功能| |26|GPIO20|23|GPIO20|23|GPIO20|无功能| |27|GPIO21|24|GPIO21|24|GPIO21|缺省唤醒MCU输出,接收到手机发过来的数据,产生10uS高电平脉冲| |28|GPIO22|25/26|GPIO22|25/26|GPIO22|无功能| |29|RSTN|19|RESET|19|RESET|蓝牙模块复位输入,低电平处于复位状态,高电平复位完成正常启动|
fae_sz
Sept. 25, 2025, 4:46 p.m.
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