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Merge pull request #3 from tari/hardware-spi

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Document the requirement for hardware SPI
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Sean Cross 2019-02-25 17:11:10 +08:00 committed by GitHub
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README.md
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@ -16,7 +16,10 @@ The EVT boards can be attached directly to the Raspberry Pi as a "hat". When bu
The only pins that are required are 5V, GND, CRESET, SPI_MOSI, SPI_MISO, SPI_CLK, and SPI_CS.
You can improve performance by attaching SPI_IO2 and SPI_IO3 and running `fomu-flash` in quad/qpi mode by specifying `-t 4` or `-t q`.
The Pi's hardware SPI interface must be enabled in the kernel- use
`raspi-config` or add `dtparam=spi=on` to `/boot/config.txt` and reboot before
using. You can improve performance by attaching SPI_IO2 and SPI_IO3 and running
`fomu-flash` in quad/qpi mode by specifying `-t 4` or `-t q`.
You can get serial interaction by connecting the UART pins, but they are not necessary for flashing.