# Booting BearlyML With External SPI Flash Connect SPI to FE310. We need to use J-Link to communicate with the board/chip. So run `JLink.exe` ## J-Link Commands [Here](https://wiki.segger.com/J-Link_Commander) and [here](https://docs.rs-online.com/5cbd/0900766b8165024a.pdf) are some references. Can also type `?` in terminal to see list of command. To connect device ``` connect FE310 ``` List Regs ``` Regs RReg pc ``` Examine memory content ``` Mem32 0x20000000, 2 ``` Erase Flash ``` Erase 0x20000000, 0x20001000 ``` Load file to Flash ``` LoadFile C:\Users\TK\Desktop\HAL\firmware\build\firmware.bin, 0x20000000 ``` Common commands as GDB ``` Halt Go Reset Step ``` ## SPI Wiring

*Note: the #RESET pin need to be tied to HIGH.*

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