Add support for VSPI on ESP32

RobTillaart / MCP_DAC

Arduino library for MCP_DAC MCP48xx and MCP49xx series SPI-DAC

MIT License

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Closed RobTillaart closed 3 years ago

RobTillaart commented 3 years ago

fixes #5

switching between HSPI / VSPI with default pins on ESP32 in case of HWSPI
added setGPIOpins() for overruling the default pins of the chosen HSPI / VSPI
added SPISettings(...) variable to optimize AVR hardware SPI transfer
optimized swSPI_transfer() a bit for AVR, more for ESP32
optimized triggerLatch()