Chirp SonicLib  2.1.0
ch201_gprmt.h
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1 
13 /*
14  * Copyright © 2016-2019, Chirp Microsystems. All rights reserved.
15  *
16  * Chirp Microsystems CONFIDENTIAL
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21  * DISCLAIMED. IN NO EVENT SHALL CHIRP MICROSYSTEMS BE LIABLE FOR ANY
22  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
25  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  *
29  * You can contact the authors of this program by email at support@chirpmicro.com
30  * or by mail at 2560 Ninth Street, Suite 220, Berkeley, CA 94710.
31  */
32 
33 #ifndef CH201_GPRMT_H_
34 #define CH201_GPRMT_H_
35 
36 #include "ch201.h"
37 #include "soniclib.h"
38 #include <stdint.h>
39 
40 /* GPR with multi thresholds firmware registers */
41 #define CH201_GPRMT_REG_OPMODE 0x01
42 #define CH201_GPRMT_REG_TICK_INTERVAL 0x02
43 #define CH201_GPRMT_REG_PERIOD 0x05
44 #define CH201_GPRMT_REG_CAL_TRIG 0x06
45 #define CH201_GPRMT_REG_MAX_RANGE 0x07
46 #define CH201_GPRMT_REG_THRESH_LEN_0 0x08
47 #define CH201_GPRMT_REG_THRESH_LEN_1 0x09
48 #define CH201_GPRMT_REG_CAL_RESULT 0x0A
49 #define CH201_GPRMT_REG_THRESH_LEN_2 0x0C
50 #define CH201_GPRMT_REG_THRESH_LEN_3 0x0D
51 #define CH201_GPRMT_REG_ST_RANGE 0x12
52 #define CH201_GPRMT_REG_READY 0x14
53 #define CH201_GPRMT_REG_THRESH_LEN_4 0x15
54 #define CH201_GPRMT_REG_THRESHOLDS 0x16 // start of array of six 2-byte threshold levels
55 #define CH201_GPRMT_REG_TOF_SF 0x22
56 #define CH201_GPRMT_REG_TOF 0x24
57 #define CH201_GPRMT_REG_AMPLITUDE 0x26
58 #define CH201_GPRMT_REG_DATA 0x28
59 
60 #define CH201_GPRMT_MAX_SAMPLES (450) // max number of samples
61 #define CH201_GPRMT_NUM_THRESHOLDS (6) // total number of thresholds
62 
63 extern const char *ch201_gprmt_version; // version string in fw .c file
64 extern const uint8_t ch201_gprmt_fw[CH201_FW_SIZE];
65 
66 uint16_t get_ch201_gprmt_fw_ram_init_addr(void);
67 uint16_t get_ch201_gprmt_fw_ram_init_size(void);
68 
69 const unsigned char * get_ram_ch201_gprmt_init_ptr(void);
70 
71 uint8_t ch201_gprmt_init(ch_dev_t *dev_ptr, ch_group_t *grp_ptr, uint8_t i2c_addr, uint8_t dev_num, uint8_t i2c_bus_index);
72 
73 
74 #endif
Chirp SonicLib public API and support functions for Chirp ultrasonic sensors.
Chirp sensor device structure.
Definition: soniclib.h:349
Chirp sensor group configuration structure.
Definition: soniclib.h:329
Internal definitions for the Chirp CH201 ultrasonic sensor.