37 lines
867 B
Markdown
37 lines
867 B
Markdown
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# Bouffalo DualUart
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This is the instructions for the dualuart firmware used with BL702 or BL616.
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## Hardware
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## Sipeed RV-Debugger-Plus
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- Use BL702C-A0
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## Flash download
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- Open BL Devcube
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- Select IOT UI and select single download
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- Load firmware
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- Press and hold the boot pin then plug the usb in the computer to go to the boot mode.
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- Download
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## UART PIN
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**DTR** and **RTS** are only used for downloading with devcube.
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| Function | Label | GPIO |
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|:-------------:|:--------:|:------:|
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|UART0 TX | TCK | GPIO15 |
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|UART0 RX | TDI | GPIO0 |
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|UART0 DTR | TMS | GPIO2 |
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|UART0 RTS | TDO | GPIO1 |
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|UART1 TX | TX | GPIO26 |
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|UART1 RX | RX | GPIO27 |
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|UART1 DTR | DTR | GPIO28 |
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|UART1 RTS | RTS | GPIO24 |
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