Exemple #1
0
void ms2100_init( void ) {

  ms2100_arch_init();

  uint8_t i;
  for (i=0; i<MS2100_NB_AXIS; i++)
    ms2100_values[i] = 0;
  ms2100_status = MS2100_IDLE;
}
Exemple #2
0
void ms2100_init(struct Ms2100 *ms, struct spi_periph *spi_p, uint8_t slave_idx) {

  /* set spi_peripheral */
  ms->spi_p = spi_p;

  /* configure spi transaction for the request */
  ms->req_trans.cpol = SPICpolIdleLow;
  ms->req_trans.cpha = SPICphaEdge1;
  ms->req_trans.dss = SPIDss8bit;
  ms->req_trans.bitorder = SPIMSBFirst;
  ms->req_trans.cdiv = SPIDiv64;

  ms->req_trans.slave_idx = slave_idx;
  ms->req_trans.select = SPISelectUnselect;
  ms->req_trans.output_buf = ms->req_buf;
  ms->req_trans.output_length = 1;
  ms->req_trans.input_buf = NULL;
  ms->req_trans.input_length = 0;
  // ms2100 has to be reset before each measurement: implemented in ms2100_arch.c
  ms->req_trans.before_cb = ms2100_reset_cb;
  ms->req_trans.status = SPITransDone;

  /* configure spi transaction to read the result */
  ms->read_trans.cpol = SPICpolIdleLow;
  ms->read_trans.cpha = SPICphaEdge1;
  ms->read_trans.dss = SPIDss8bit;
  ms->read_trans.bitorder = SPIMSBFirst;
  ms->read_trans.cdiv = SPIDiv64;

  ms->read_trans.slave_idx = slave_idx;
  ms->read_trans.select = SPISelectUnselect;
  ms->read_trans.output_buf = NULL;
  ms->read_trans.output_length = 0;
  ms->read_trans.input_buf = ms->read_buf;
  ms->read_trans.input_length = 2;
  ms->read_trans.before_cb = NULL;
  ms->read_trans.after_cb = NULL;
  ms->read_trans.status = SPITransDone;

  ms2100_arch_init();

  INT_VECT3_ZERO(ms->data.vect);
  ms->cur_axe = 0;

  ms->status = MS2100_IDLE;
}