mirror of
https://github.com/paparazzi/paparazzi.git
synced 2026-06-06 07:53:43 +08:00
Martin Mueller
60 lines
1.2 KiB
C
60 lines
1.2 KiB
C
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/** \file dpicco.c
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* \brief DigiPicco I2C sensor interface
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*
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* This reads the values for humidity and temperature from the IST DigiPicco sensor through I2C.
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*/
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#include "dpicco.h"
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#include "i2c.h"
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#include "led.h"
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#include <string.h>
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uint8_t dpicco_status;
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uint16_t dpicco_val[DPICCO_NB_SENSOR];
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float dpicco_humid;
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float dpicco_temp;
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#define DPICCO_SLAVE_ADDR 0xF0
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volatile bool_t dpicco_i2c_done;
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void dpicco_init( void ) {
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uint8_t i;
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for (i=0; i< DPICCO_NB_SENSOR; i++) {
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dpicco_val[i] = 0;
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}
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dpicco_status = DPICCO_IDLE;
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dpicco_i2c_done = TRUE;
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}
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void dpicco_periodic( void ) {
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if (dpicco_i2c_done) {
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if (dpicco_status == DPICCO_IDLE) {
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/* init first read */
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dpicco_status = DPICCO_MEASURING_RD;
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dpicco_i2c_done = FALSE;
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i2c_receive(DPICCO_SLAVE_ADDR, 4, &dpicco_i2c_done);
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// LED_ON(2);
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}
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else if (dpicco_status == DPICCO_MEASURING_RD) {
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/* get data */
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dpicco_val[0] = (i2c_buf[0]<<8) | i2c_buf[1];
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dpicco_val[1] = (i2c_buf[2]<<8) | i2c_buf[3];
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/* start next one right away */
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dpicco_i2c_done = FALSE;
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i2c_receive(DPICCO_SLAVE_ADDR, 4, &dpicco_i2c_done);
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// LED_TOGGLE(2);
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}
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}
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}
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