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27f45a205a
- optimize SPI usage 148% write speed (24kB/s -> 37kB/s) and 127% read speed (121kB/s -> 155kB/s) at 8MHz - add clock frequency as parameter for begin(csPin, frequency) - SD @80MHz write: 84kB/s read: 231kB/s SPI add functions: - void write32(uint32_t data); - void write32(uint32_t data, bool msb); - void transferBytes(uint8_t * out, uint8_t * in, uint32_t size); Adafruit_ILI9341: - code clean