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;
}
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;
}