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Fix license

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Manuel Bleichenbacher
2018-07-21 21:54:29 +02:00
parent e6b5f2f0d5
commit 0d2fc70abb
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README.md
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@ -13,27 +13,3 @@ Follow the detailed [Get Started Guide](https://github.com/manuelbl/ttn-esp32/wi
## Supported Boards
All boards with Semtech SX127x chips, RFM9x and compatibles are supported. It includes boards from ttgo, Heltec and HopeRF.
## Resources
### SPI bus and pins
Before the TTN device is configured, the SPI bus / host (`SPI_HOST`, `HSPI_HOST` or `VSPI_HOST`) must be configured by calling `spi_bus_initialize()`. In the SPI configuration, the pin number for SCK, MISO and MOSI are specified.
The pin number of NSS (the radio chip's SPI chip select) is specified by calling `TheThingsNetwork::configurePins()`.
The SPI bus frequency can be changed by running `make menuconfig`.
### SX127x pins
Except for the SPI pins, the pins connected to the SX127x radio chip are configured by calling `TheThingsNetwork::configurePins()`. The pins *RXTX* and *RTS* are optional. The chip can be used without connecting them.
### Timer
To implement the LoRaWAN protocol, a timer is needed. The ESP32 has four timers. By default,
timer 1 of timer group 0 is used. It can be changed by running `make menuconfig`.
### Background thread
Most of the LoRaWAN code is run in a background process with high priority (as the timing is crucial). The default priority is 10. It can be changed by running `make menuconfig`.