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43 lines
1.8 KiB
Plaintext
43 lines
1.8 KiB
Plaintext
---
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id: flashing-nrf52-devices
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title: Flash NRF52 Devices
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sidebar_label: NRF52 Device
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sidebar_position: 2
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---
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import Tabs from '@theme/Tabs';
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import TabItem from '@theme/TabItem';
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## Recommended Flashing Method for NRF52 Devices
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If you have RAK NRF based devices or a LilyGO T-Echo
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1. The [drag and drop](/docs/getting-started/flashing-firmware/nrf52/drag-n-drop) firmware installation process is the easiest solution.
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## Convert RAK4631-R to RAK4631
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The RAK4631-R is just the same as the RAK4631 in terms of hardware, the only difference is the bootloader it is shipped with.
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The RAK4631-R is shipped with the RUI3 bootloader, the RAK4631 with the Arduino bootloader.
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Running Meshtastic on RAK WisBlock NRF52-based boards relies on the Arduino bootloader.
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The process of converting the bootloader only needs to be performed once.
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This conversion requires the use of either a [DAPLink](https://daplink.io/) or [J-Link](https://www.segger.com/products/debug-probes/j-link/). The most reasonably priced and avaliable is the [RAKDAP1](https://store.rakwireless.com/products/daplink-tool).
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1. Install [Python](https://www.python.org/downloads/)
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2. Install [pyOCD](https://pyocd.io/)
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```shell
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pip3 install pyocd
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```
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3. Download the required bootloader: [WisCore_RAK4631_Board_Bootloader.hex](https://github.com/RAKWireless/WisBlock/releases/download/0.4.2/WisCore_RAK4631_Board_Bootloader.hex)
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4. Connect the RAKDAP as follows:
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[<img src="/img/rak4631-rakdap1.png" style={{zoom:'25%'}} />](/img/rak4631-rakdap1.png)
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5. Flash the bootloader
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```shell
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pyocd flash -t nrf52840 .\WisCore_RAK4631_Board_Bootloader.hex
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```
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6. Continue with the normal [flashing instructions](/docs/getting-started/flashing-firmware/nrf52/drag-n-drop)
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Alternate methods of flashing are outlined [here](https://github.com/RAKWireless/WisBlock/tree/master/bootloader/RAK4630). |