#include "spisim.h"
#include "system.h"

SpiSim::SpiSim() noexcept : nss(GPIOA,4), sck(GPIOA,5), mosi(GPIOA,7) {
  delay_init();
  nss  << true;
  sck  << false;
  mosi << false;
}
void SpiSim::outbyte(const uint8_t b) const {
  nss << false;
  for (unsigned n=0u; n<8; n++) {
    const bool bit = (b & (1u << n)) ? true : false;
    mosi << bit;
    delay_us (2);
    sck  << true;
    delay_us (4);
    sck  << false;
    delay_us (2);
  }
  nss << true;
}