Lab 6?
Fork of ADXL362 by
ADXL362.cpp@4:9e635c4a3099, 2018-02-22 (annotated)
- Committer:
- youngs2
- Date:
- Thu Feb 22 18:11:43 2018 +0000
- Revision:
- 4:9e635c4a3099
- Parent:
- 0:2e21c4508cab
lab 6 in progress
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
adisuciu | 0:2e21c4508cab | 1 | /** |
adisuciu | 0:2e21c4508cab | 2 | * @file ADXL362.cpp |
adisuciu | 0:2e21c4508cab | 3 | * @brief Source file for ADXL362 |
adisuciu | 0:2e21c4508cab | 4 | * @author Analog Devices Inc. |
adisuciu | 0:2e21c4508cab | 5 | * |
adisuciu | 0:2e21c4508cab | 6 | * For support please go to: |
adisuciu | 0:2e21c4508cab | 7 | * Github: https://github.com/analogdevicesinc/mbed-adi |
adisuciu | 0:2e21c4508cab | 8 | * Support: https://ez.analog.com/community/linux-device-drivers/microcontroller-no-os-drivers |
adisuciu | 0:2e21c4508cab | 9 | * Product: http://www.analog.com/adxl362 |
adisuciu | 0:2e21c4508cab | 10 | * More: https://wiki.analog.com/resources/tools-software/mbed-drivers-all |
adisuciu | 0:2e21c4508cab | 11 | |
adisuciu | 0:2e21c4508cab | 12 | ******************************************************************************** |
adisuciu | 0:2e21c4508cab | 13 | * Copyright 2016(c) Analog Devices, Inc. |
adisuciu | 0:2e21c4508cab | 14 | * |
adisuciu | 0:2e21c4508cab | 15 | * All rights reserved. |
adisuciu | 0:2e21c4508cab | 16 | * |
adisuciu | 0:2e21c4508cab | 17 | * Redistribution and use in source and binary forms, with or without |
adisuciu | 0:2e21c4508cab | 18 | * modification, are permitted provided that the following conditions are met: |
adisuciu | 0:2e21c4508cab | 19 | * - Redistributions of source code must retain the above copyright |
adisuciu | 0:2e21c4508cab | 20 | * notice, this list of conditions and the following disclaimer. |
adisuciu | 0:2e21c4508cab | 21 | * - Redistributions in binary form must reproduce the above copyright |
adisuciu | 0:2e21c4508cab | 22 | * notice, this list of conditions and the following disclaimer in |
adisuciu | 0:2e21c4508cab | 23 | * the documentation and/or other materials provided with the |
adisuciu | 0:2e21c4508cab | 24 | * distribution. |
adisuciu | 0:2e21c4508cab | 25 | * - Neither the name of Analog Devices, Inc. nor the names of its |
adisuciu | 0:2e21c4508cab | 26 | * contributors may be used to endorse or promote products derived |
adisuciu | 0:2e21c4508cab | 27 | * from this software without specific prior written permission. |
adisuciu | 0:2e21c4508cab | 28 | * - The use of this software may or may not infringe the patent rights |
adisuciu | 0:2e21c4508cab | 29 | * of one or more patent holders. This license does not release you |
adisuciu | 0:2e21c4508cab | 30 | * from the requirement that you obtain separate licenses from these |
adisuciu | 0:2e21c4508cab | 31 | * patent holders to use this software. |
adisuciu | 0:2e21c4508cab | 32 | * - Use of the software either in source or binary form, must be run |
adisuciu | 0:2e21c4508cab | 33 | * on or directly connected to an Analog Devices Inc. component. |
adisuciu | 0:2e21c4508cab | 34 | * |
adisuciu | 0:2e21c4508cab | 35 | * THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR |
adisuciu | 0:2e21c4508cab | 36 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT, |
adisuciu | 0:2e21c4508cab | 37 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
adisuciu | 0:2e21c4508cab | 38 | * IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT, |
adisuciu | 0:2e21c4508cab | 39 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
adisuciu | 0:2e21c4508cab | 40 | * LIMITED TO, INTELLECTUAL PROPERTY RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR |
adisuciu | 0:2e21c4508cab | 41 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
adisuciu | 0:2e21c4508cab | 42 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
adisuciu | 0:2e21c4508cab | 43 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
adisuciu | 0:2e21c4508cab | 44 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
adisuciu | 0:2e21c4508cab | 45 | * |
adisuciu | 0:2e21c4508cab | 46 | ********************************************************************************/ |
adisuciu | 0:2e21c4508cab | 47 | |
adisuciu | 0:2e21c4508cab | 48 | #include <stdint.h> |
adisuciu | 0:2e21c4508cab | 49 | #include "mbed.h" |
adisuciu | 0:2e21c4508cab | 50 | #include "ADXL362.h" |
adisuciu | 0:2e21c4508cab | 51 | |
adisuciu | 0:2e21c4508cab | 52 | /** |
adisuciu | 0:2e21c4508cab | 53 | * ADXL362 constructor. Sets CS and SPI bus |
adisuciu | 0:2e21c4508cab | 54 | * @param CS - CS pin of the ADXL362 |
adisuciu | 0:2e21c4508cab | 55 | * @param MOSI - MOSI pin of the ADXL362 |
adisuciu | 0:2e21c4508cab | 56 | * @param MISO - MISO pin of the ADXL362 |
adisuciu | 0:2e21c4508cab | 57 | * @param SCK- SCK pin of the ADXL362 |
adisuciu | 0:2e21c4508cab | 58 | */ |
adisuciu | 0:2e21c4508cab | 59 | ADXL362::ADXL362(PinName CS, PinName MOSI, PinName MISO, PinName SCK) : |
adisuciu | 0:2e21c4508cab | 60 | adxl362(MOSI, MISO, SCK), cs(CS), _int1(NULL), _int2(NULL), _int1_poll(NC), _int2_poll( |
adisuciu | 0:2e21c4508cab | 61 | NC) |
adisuciu | 0:2e21c4508cab | 62 | { |
adisuciu | 0:2e21c4508cab | 63 | cs = true; // cs is active low |
adisuciu | 0:2e21c4508cab | 64 | adxl362.format(8, _SPI_MODE); |
adisuciu | 0:2e21c4508cab | 65 | _temp_stored_in_fifo = false; |
adisuciu | 0:2e21c4508cab | 66 | _int1_act_low = true; |
adisuciu | 0:2e21c4508cab | 67 | _int2_act_low = true; |
adisuciu | 0:2e21c4508cab | 68 | } |
adisuciu | 0:2e21c4508cab | 69 | |
adisuciu | 0:2e21c4508cab | 70 | /** |
adisuciu | 0:2e21c4508cab | 71 | * Sets ADXL362 SPI bus frequency |
adisuciu | 0:2e21c4508cab | 72 | * @param hz - frequency in hz |
adisuciu | 0:2e21c4508cab | 73 | */ |
adisuciu | 0:2e21c4508cab | 74 | void ADXL362::frequency(int hz) |
adisuciu | 0:2e21c4508cab | 75 | { |
adisuciu | 0:2e21c4508cab | 76 | adxl362.frequency(hz); |
adisuciu | 0:2e21c4508cab | 77 | } |
adisuciu | 0:2e21c4508cab | 78 | |
adisuciu | 0:2e21c4508cab | 79 | /** |
adisuciu | 0:2e21c4508cab | 80 | * Resets the ADXL362 |
adisuciu | 0:2e21c4508cab | 81 | * A latency of approximately 0.5 ms is required after soft reset. |
adisuciu | 0:2e21c4508cab | 82 | */ |
adisuciu | 0:2e21c4508cab | 83 | void ADXL362::reset() |
adisuciu | 0:2e21c4508cab | 84 | { |
adisuciu | 0:2e21c4508cab | 85 | adxl362.format(8, _SPI_MODE); |
adisuciu | 0:2e21c4508cab | 86 | cs = false; |
adisuciu | 0:2e21c4508cab | 87 | // Writing Code 0x52 (representing the letter, R, in ASCII or unicode) to this register immediately resets the ADXL362. |
adisuciu | 0:2e21c4508cab | 88 | write_reg(SOFT_RESET, 0x52); |
adisuciu | 0:2e21c4508cab | 89 | cs = true; |
adisuciu | 0:2e21c4508cab | 90 | |
adisuciu | 0:2e21c4508cab | 91 | } |
adisuciu | 0:2e21c4508cab | 92 | |
adisuciu | 0:2e21c4508cab | 93 | /** |
adisuciu | 0:2e21c4508cab | 94 | * Writes the reg register with data |
adisuciu | 0:2e21c4508cab | 95 | * @param reg - ADXL362_register_t register to be written |
adisuciu | 0:2e21c4508cab | 96 | * @param data - data to be written |
adisuciu | 0:2e21c4508cab | 97 | */ |
adisuciu | 0:2e21c4508cab | 98 | void ADXL362::write_reg(ADXL362_register_t reg, uint8_t data) |
adisuciu | 0:2e21c4508cab | 99 | { |
adisuciu | 0:2e21c4508cab | 100 | adxl362.format(8, _SPI_MODE); |
adisuciu | 0:2e21c4508cab | 101 | cs = false; |
adisuciu | 0:2e21c4508cab | 102 | adxl362.write(_WRITE_REG_CMD); |
adisuciu | 0:2e21c4508cab | 103 | adxl362.write(static_cast<uint8_t>(reg)); |
adisuciu | 0:2e21c4508cab | 104 | adxl362.write(static_cast<uint8_t>(data)); |
adisuciu | 0:2e21c4508cab | 105 | cs = true; |
adisuciu | 0:2e21c4508cab | 106 | } |
adisuciu | 0:2e21c4508cab | 107 | |
adisuciu | 0:2e21c4508cab | 108 | /** |
adisuciu | 0:2e21c4508cab | 109 | * Reads the reg register |
adisuciu | 0:2e21c4508cab | 110 | * @param reg - ADXL362_register_t register to be read |
adisuciu | 0:2e21c4508cab | 111 | * @return - data read from the register |
adisuciu | 0:2e21c4508cab | 112 | */ |
adisuciu | 0:2e21c4508cab | 113 | uint8_t ADXL362::read_reg(ADXL362_register_t reg) |
adisuciu | 0:2e21c4508cab | 114 | { |
adisuciu | 0:2e21c4508cab | 115 | uint8_t ret_val; |
adisuciu | 0:2e21c4508cab | 116 | adxl362.format(8, _SPI_MODE); |
adisuciu | 0:2e21c4508cab | 117 | cs = false; |
adisuciu | 0:2e21c4508cab | 118 | adxl362.write(_READ_REG_CMD); |
adisuciu | 0:2e21c4508cab | 119 | adxl362.write(static_cast<uint8_t>(reg)); |
adisuciu | 0:2e21c4508cab | 120 | ret_val = adxl362.write(_DUMMY_BYTE); |
adisuciu | 0:2e21c4508cab | 121 | cs = true; |
adisuciu | 0:2e21c4508cab | 122 | return ret_val; |
adisuciu | 0:2e21c4508cab | 123 | } |
adisuciu | 0:2e21c4508cab | 124 | |
adisuciu | 0:2e21c4508cab | 125 | /** |
adisuciu | 0:2e21c4508cab | 126 | * Writes 16 bit registers to the ADXL362. Performs conversion from Intel to Motorola byte order |
adisuciu | 0:2e21c4508cab | 127 | * @param reg - ADXL362_register_t register to be written |
adisuciu | 0:2e21c4508cab | 128 | * @param data - data to be written |
adisuciu | 0:2e21c4508cab | 129 | */ |
adisuciu | 0:2e21c4508cab | 130 | void ADXL362::write_reg_u16(ADXL362_register_t reg, uint16_t data) |
adisuciu | 0:2e21c4508cab | 131 | { |
adisuciu | 0:2e21c4508cab | 132 | adxl362.format(8, _SPI_MODE); |
adisuciu | 0:2e21c4508cab | 133 | |
adisuciu | 0:2e21c4508cab | 134 | cs = false; |
adisuciu | 0:2e21c4508cab | 135 | adxl362.write(_WRITE_REG_CMD); |
adisuciu | 0:2e21c4508cab | 136 | adxl362.write(static_cast<uint8_t>(reg)); |
adisuciu | 0:2e21c4508cab | 137 | adxl362.write(static_cast<uint8_t>(data & 0xff)); |
adisuciu | 0:2e21c4508cab | 138 | adxl362.write(static_cast<uint8_t>((data & 0xff00) >> 8)); |
adisuciu | 0:2e21c4508cab | 139 | |
adisuciu | 0:2e21c4508cab | 140 | cs = true; |
adisuciu | 0:2e21c4508cab | 141 | } |
adisuciu | 0:2e21c4508cab | 142 | |
adisuciu | 0:2e21c4508cab | 143 | /** |
adisuciu | 0:2e21c4508cab | 144 | * Reads 16 bit registers from the ADXL362. Performs conversion from Motorola to Intel Byte order |
adisuciu | 0:2e21c4508cab | 145 | * @param reg - ADXL362_register_t register to be read |
adisuciu | 0:2e21c4508cab | 146 | * @return - data read from the ADXL362 |
adisuciu | 0:2e21c4508cab | 147 | */ |
adisuciu | 0:2e21c4508cab | 148 | uint16_t ADXL362::read_reg_u16(ADXL362_register_t reg) |
adisuciu | 0:2e21c4508cab | 149 | { |
adisuciu | 0:2e21c4508cab | 150 | uint16_t ret_val = 0; |
adisuciu | 0:2e21c4508cab | 151 | adxl362.format(8, _SPI_MODE); |
adisuciu | 0:2e21c4508cab | 152 | |
adisuciu | 0:2e21c4508cab | 153 | cs = false; |
adisuciu | 0:2e21c4508cab | 154 | adxl362.write(_READ_REG_CMD); |
adisuciu | 0:2e21c4508cab | 155 | adxl362.write(static_cast<uint8_t>(reg)); |
adisuciu | 0:2e21c4508cab | 156 | ret_val = adxl362.write(_DUMMY_BYTE); |
adisuciu | 0:2e21c4508cab | 157 | ret_val = ret_val | (adxl362.write(_DUMMY_BYTE) << 8); |
adisuciu | 0:2e21c4508cab | 158 | cs = true; |
adisuciu | 0:2e21c4508cab | 159 | |
adisuciu | 0:2e21c4508cab | 160 | return ret_val; |
adisuciu | 0:2e21c4508cab | 161 | } |
adisuciu | 0:2e21c4508cab | 162 | |
adisuciu | 0:2e21c4508cab | 163 | /** |
adisuciu | 0:2e21c4508cab | 164 | * Scans the X,Y,Z,T registers for data. |
adisuciu | 0:2e21c4508cab | 165 | * ADXL362 needs to be in measurement mode to read data |
adisuciu | 0:2e21c4508cab | 166 | * ADXL362 is set in measurement mode using ADXL362::set_mode(ADXL362::MEASUREMENT) |
adisuciu | 0:2e21c4508cab | 167 | * @return a 64 bit integer with the following format 0xXXYYZZTT |
adisuciu | 0:2e21c4508cab | 168 | */ |
adisuciu | 0:2e21c4508cab | 169 | uint64_t ADXL362::scan() |
adisuciu | 0:2e21c4508cab | 170 | { |
adisuciu | 0:2e21c4508cab | 171 | uint64_t ret_val = 0; |
adisuciu | 0:2e21c4508cab | 172 | uint16_t x, y, z, t = 0; |
adisuciu | 0:2e21c4508cab | 173 | |
adisuciu | 0:2e21c4508cab | 174 | adxl362.format(8, _SPI_MODE); |
adisuciu | 0:2e21c4508cab | 175 | cs = false; |
adisuciu | 0:2e21c4508cab | 176 | adxl362.write(_READ_REG_CMD); |
adisuciu | 0:2e21c4508cab | 177 | adxl362.write(static_cast<uint8_t>(XDATA_L)); |
adisuciu | 0:2e21c4508cab | 178 | |
adisuciu | 0:2e21c4508cab | 179 | x = adxl362.write(_DUMMY_BYTE); |
adisuciu | 0:2e21c4508cab | 180 | x = x | static_cast<uint16_t>(adxl362.write(_DUMMY_BYTE) << 8); |
adisuciu | 0:2e21c4508cab | 181 | y = adxl362.write(_DUMMY_BYTE); |
adisuciu | 0:2e21c4508cab | 182 | y = y | static_cast<uint16_t>(adxl362.write(_DUMMY_BYTE) << 8); |
adisuciu | 0:2e21c4508cab | 183 | z = adxl362.write(_DUMMY_BYTE); |
adisuciu | 0:2e21c4508cab | 184 | z = z | static_cast<uint16_t>(adxl362.write(_DUMMY_BYTE) << 8); |
adisuciu | 0:2e21c4508cab | 185 | t = adxl362.write(_DUMMY_BYTE); |
adisuciu | 0:2e21c4508cab | 186 | t = t | static_cast<uint16_t>(adxl362.write(_DUMMY_BYTE) << 8); |
adisuciu | 0:2e21c4508cab | 187 | |
adisuciu | 0:2e21c4508cab | 188 | ret_val = static_cast<uint64_t>(x) << 48; |
adisuciu | 0:2e21c4508cab | 189 | ret_val |= static_cast<uint64_t>(y) << 32; |
adisuciu | 0:2e21c4508cab | 190 | ret_val |= static_cast<uint64_t>(z) << 16; |
adisuciu | 0:2e21c4508cab | 191 | ret_val |= static_cast<uint64_t>(t); |
adisuciu | 0:2e21c4508cab | 192 | cs = true; |
adisuciu | 0:2e21c4508cab | 193 | return ret_val; |
adisuciu | 0:2e21c4508cab | 194 | } |
adisuciu | 0:2e21c4508cab | 195 | |
adisuciu | 0:2e21c4508cab | 196 | /** |
adisuciu | 0:2e21c4508cab | 197 | * Reads the X 8 bit register from the ADXL362 |
adisuciu | 0:2e21c4508cab | 198 | * ADXL362 is set in measurement mode using ADXL362::set_mode(ADXL362::MEASUREMENT) |
adisuciu | 0:2e21c4508cab | 199 | * @return 8 bit X data |
adisuciu | 0:2e21c4508cab | 200 | */ |
adisuciu | 0:2e21c4508cab | 201 | uint8_t ADXL362::scanx_u8() |
adisuciu | 0:2e21c4508cab | 202 | { |
adisuciu | 0:2e21c4508cab | 203 | return read_reg(XDATA); |
adisuciu | 0:2e21c4508cab | 204 | } |
adisuciu | 0:2e21c4508cab | 205 | |
adisuciu | 0:2e21c4508cab | 206 | /** |
adisuciu | 0:2e21c4508cab | 207 | * Reads the X 16 bit register from the ADXL362 |
adisuciu | 0:2e21c4508cab | 208 | * ADXL362 is set in measurement mode using ADXL362::set_mode(ADXL362::MEASUREMENT) |
adisuciu | 0:2e21c4508cab | 209 | * @return 16 bit X data |
adisuciu | 0:2e21c4508cab | 210 | */ |
adisuciu | 0:2e21c4508cab | 211 | uint16_t ADXL362::scanx() |
adisuciu | 0:2e21c4508cab | 212 | { |
adisuciu | 0:2e21c4508cab | 213 | return read_reg_u16(XDATA_L); |
adisuciu | 0:2e21c4508cab | 214 | } |
adisuciu | 0:2e21c4508cab | 215 | |
adisuciu | 0:2e21c4508cab | 216 | /** |
adisuciu | 0:2e21c4508cab | 217 | * Reads the Y 8 bit register from the ADXL362 |
adisuciu | 0:2e21c4508cab | 218 | * ADXL362 is set in measurement mode using ADXL362::set_mode(ADXL362::MEASUREMENT) |
adisuciu | 0:2e21c4508cab | 219 | * @return 8 bit Y data |
adisuciu | 0:2e21c4508cab | 220 | */ |
adisuciu | 0:2e21c4508cab | 221 | uint8_t ADXL362::scany_u8() |
adisuciu | 0:2e21c4508cab | 222 | { |
adisuciu | 0:2e21c4508cab | 223 | return read_reg(YDATA); |
adisuciu | 0:2e21c4508cab | 224 | } |
adisuciu | 0:2e21c4508cab | 225 | |
adisuciu | 0:2e21c4508cab | 226 | /** |
adisuciu | 0:2e21c4508cab | 227 | * Reads the Y 16 bit register from the ADXL362 |
adisuciu | 0:2e21c4508cab | 228 | * ADXL362 is set in measurement mode using ADXL362::set_mode(ADXL362::MEASUREMENT) |
adisuciu | 0:2e21c4508cab | 229 | * @return 16 bit Y data |
adisuciu | 0:2e21c4508cab | 230 | */ |
adisuciu | 0:2e21c4508cab | 231 | uint16_t ADXL362::scany() |
adisuciu | 0:2e21c4508cab | 232 | { |
adisuciu | 0:2e21c4508cab | 233 | return read_reg_u16(YDATA_L); |
adisuciu | 0:2e21c4508cab | 234 | } |
adisuciu | 0:2e21c4508cab | 235 | |
adisuciu | 0:2e21c4508cab | 236 | /** |
adisuciu | 0:2e21c4508cab | 237 | * Reads the Z 8 bit register from the ADXL362 |
adisuciu | 0:2e21c4508cab | 238 | * ADXL362 is set in measurement mode using ADXL362::set_mode(ADXL362::MEASUREMENT) |
adisuciu | 0:2e21c4508cab | 239 | * @return 8 bit Z data |
adisuciu | 0:2e21c4508cab | 240 | */ |
adisuciu | 0:2e21c4508cab | 241 | uint8_t ADXL362::scanz_u8() |
adisuciu | 0:2e21c4508cab | 242 | { |
adisuciu | 0:2e21c4508cab | 243 | return read_reg(ZDATA); |
adisuciu | 0:2e21c4508cab | 244 | } |
adisuciu | 0:2e21c4508cab | 245 | |
adisuciu | 0:2e21c4508cab | 246 | /** |
adisuciu | 0:2e21c4508cab | 247 | * Reads the Z 16 bit register from the ADXL362 |
adisuciu | 0:2e21c4508cab | 248 | * ADXL362 is set in measurement mode using ADXL362::set_mode(ADXL362::MEASUREMENT) |
adisuciu | 0:2e21c4508cab | 249 | * @return 16 bit Z data |
adisuciu | 0:2e21c4508cab | 250 | */ |
adisuciu | 0:2e21c4508cab | 251 | uint16_t ADXL362::scanz() |
adisuciu | 0:2e21c4508cab | 252 | { |
adisuciu | 0:2e21c4508cab | 253 | return read_reg_u16(ZDATA_L); |
adisuciu | 0:2e21c4508cab | 254 | } |
adisuciu | 0:2e21c4508cab | 255 | |
adisuciu | 0:2e21c4508cab | 256 | /** |
adisuciu | 0:2e21c4508cab | 257 | * Reads the T 16 bit register from the ADXL362 |
adisuciu | 0:2e21c4508cab | 258 | * ADXL362 is set in measurement mode using ADXL362::set_mode(ADXL362::MEASUREMENT) |
adisuciu | 0:2e21c4508cab | 259 | * @return 16 bit T data |
adisuciu | 0:2e21c4508cab | 260 | */ |
adisuciu | 0:2e21c4508cab | 261 | uint16_t ADXL362::scant() |
adisuciu | 0:2e21c4508cab | 262 | { |
adisuciu | 0:2e21c4508cab | 263 | return read_reg_u16(TEMP_L); |
adisuciu | 0:2e21c4508cab | 264 | } |
adisuciu | 0:2e21c4508cab | 265 | |
adisuciu | 0:2e21c4508cab | 266 | /** |
adisuciu | 0:2e21c4508cab | 267 | * Sets the STANDBY/MEASUREMENT mode of the ADXL362 |
adisuciu | 0:2e21c4508cab | 268 | * @param mode - ADXL362_modes_t STANDBY/MEASUREMENT mode |
adisuciu | 0:2e21c4508cab | 269 | */ |
adisuciu | 0:2e21c4508cab | 270 | void ADXL362::set_mode(ADXL362_modes_t mode) |
adisuciu | 0:2e21c4508cab | 271 | { |
adisuciu | 0:2e21c4508cab | 272 | uint8_t reg_val; |
adisuciu | 0:2e21c4508cab | 273 | reg_val = read_reg(POWER_CTL); |
adisuciu | 0:2e21c4508cab | 274 | reg_val = reg_val | static_cast<uint8_t>(mode); |
adisuciu | 0:2e21c4508cab | 275 | write_reg(POWER_CTL, reg_val); |
adisuciu | 0:2e21c4508cab | 276 | } |
adisuciu | 0:2e21c4508cab | 277 | |
adisuciu | 0:2e21c4508cab | 278 | /** |
adisuciu | 0:2e21c4508cab | 279 | * Sets the activity threshold registers |
adisuciu | 0:2e21c4508cab | 280 | * To enable activity/inactivity, the ACT_INACT_CTL reg must also be set |
adisuciu | 0:2e21c4508cab | 281 | * using the ADXL362::set_act_inact_ctl_reg(uint8_t data) method |
adisuciu | 0:2e21c4508cab | 282 | * @param threshold - activity threshold in natural format |
adisuciu | 0:2e21c4508cab | 283 | */ |
adisuciu | 0:2e21c4508cab | 284 | void ADXL362::set_activity_threshold(uint16_t threshold) |
adisuciu | 0:2e21c4508cab | 285 | { |
adisuciu | 0:2e21c4508cab | 286 | write_reg_u16(THRESH_ACT_L, threshold); |
adisuciu | 0:2e21c4508cab | 287 | } |
adisuciu | 0:2e21c4508cab | 288 | |
adisuciu | 0:2e21c4508cab | 289 | /** |
adisuciu | 0:2e21c4508cab | 290 | * Sets the activity time register |
adisuciu | 0:2e21c4508cab | 291 | * To enable activity/inactivity, the ACT_INACT_CTL reg must also be set |
adisuciu | 0:2e21c4508cab | 292 | * using the ADXL362::set_act_inact_ctl_reg(uint8_t data) method |
adisuciu | 0:2e21c4508cab | 293 | * @param time - activity time |
adisuciu | 0:2e21c4508cab | 294 | */ |
adisuciu | 0:2e21c4508cab | 295 | void ADXL362::set_activity_time(uint8_t time) |
adisuciu | 0:2e21c4508cab | 296 | { |
adisuciu | 0:2e21c4508cab | 297 | write_reg(TIME_ACT, time); |
adisuciu | 0:2e21c4508cab | 298 | } |
adisuciu | 0:2e21c4508cab | 299 | |
adisuciu | 0:2e21c4508cab | 300 | /** |
adisuciu | 0:2e21c4508cab | 301 | * Sets the inactivity threshold register |
adisuciu | 0:2e21c4508cab | 302 | * To enable activity/inactivity, the ACT_INACT_CTL reg must also be set |
adisuciu | 0:2e21c4508cab | 303 | * using the ADXL362::set_act_inact_ctl_reg(uint8_t data) method |
adisuciu | 0:2e21c4508cab | 304 | * @param threshold - inactivity threshold in natural format |
adisuciu | 0:2e21c4508cab | 305 | */ |
adisuciu | 0:2e21c4508cab | 306 | void ADXL362::set_inactivity_threshold(uint16_t threshold) |
adisuciu | 0:2e21c4508cab | 307 | { |
adisuciu | 0:2e21c4508cab | 308 | write_reg_u16(THRESH_INACT_L, threshold); |
adisuciu | 0:2e21c4508cab | 309 | } |
adisuciu | 0:2e21c4508cab | 310 | |
adisuciu | 0:2e21c4508cab | 311 | /** |
adisuciu | 0:2e21c4508cab | 312 | * Sets the inactivity time register |
adisuciu | 0:2e21c4508cab | 313 | * To enable activity/inactivity, the ACT_INACT_CTL reg must also be set |
adisuciu | 0:2e21c4508cab | 314 | * using the ADXL362::set_act_inact_ctl_reg(uint8_t data) method |
adisuciu | 0:2e21c4508cab | 315 | * @param time - inactivity time in natural format |
adisuciu | 0:2e21c4508cab | 316 | */ |
adisuciu | 0:2e21c4508cab | 317 | void ADXL362::set_inactivity_time(uint16_t time) |
adisuciu | 0:2e21c4508cab | 318 | { |
adisuciu | 0:2e21c4508cab | 319 | write_reg_u16(TIME_INACT_L, time); |
adisuciu | 0:2e21c4508cab | 320 | } |
adisuciu | 0:2e21c4508cab | 321 | |
adisuciu | 0:2e21c4508cab | 322 | /** |
adisuciu | 0:2e21c4508cab | 323 | * Sets the ACT_INACT_CTL register of the ADXL362 |
adisuciu | 0:2e21c4508cab | 324 | * @param data - data to be written to the register |
adisuciu | 0:2e21c4508cab | 325 | */ |
adisuciu | 0:2e21c4508cab | 326 | void ADXL362::set_act_inact_ctl_reg(uint8_t data) |
adisuciu | 0:2e21c4508cab | 327 | { |
adisuciu | 0:2e21c4508cab | 328 | write_reg(ACT_INACT_CTL, data); |
adisuciu | 0:2e21c4508cab | 329 | } |
adisuciu | 0:2e21c4508cab | 330 | |
adisuciu | 0:2e21c4508cab | 331 | /** |
adisuciu | 0:2e21c4508cab | 332 | * Configures INT1 output of the ADXL362 for polling use |
adisuciu | 0:2e21c4508cab | 333 | * @param in - uC pin connected to ADXL362's INT1 |
adisuciu | 0:2e21c4508cab | 334 | * @param data - data to be written to INTMAP1 |
adisuciu | 0:2e21c4508cab | 335 | * @param pull - (optional) configures pullup on In pin |
adisuciu | 0:2e21c4508cab | 336 | */ |
adisuciu | 0:2e21c4508cab | 337 | void ADXL362::set_polling_interrupt1_pin(PinName in, uint8_t data, |
adisuciu | 0:2e21c4508cab | 338 | PinMode pull) |
adisuciu | 0:2e21c4508cab | 339 | { |
adisuciu | 0:2e21c4508cab | 340 | if ((data & 0x7F) != 0) { |
adisuciu | 0:2e21c4508cab | 341 | write_reg(INTMAP1, data); |
adisuciu | 0:2e21c4508cab | 342 | _int1_poll = DigitalIn(in); |
adisuciu | 0:2e21c4508cab | 343 | _int1_poll.mode(pull); |
adisuciu | 0:2e21c4508cab | 344 | if (data & 0x80) { |
adisuciu | 0:2e21c4508cab | 345 | _int1_act_low = true; |
adisuciu | 0:2e21c4508cab | 346 | } else { |
adisuciu | 0:2e21c4508cab | 347 | _int1_act_low = false; |
adisuciu | 0:2e21c4508cab | 348 | } |
adisuciu | 0:2e21c4508cab | 349 | } |
adisuciu | 0:2e21c4508cab | 350 | } |
adisuciu | 0:2e21c4508cab | 351 | |
adisuciu | 0:2e21c4508cab | 352 | /** |
adisuciu | 0:2e21c4508cab | 353 | * Configures INT2 output of the ADXL362 for polling use |
adisuciu | 0:2e21c4508cab | 354 | * @param in - uC pin connected to ADXL362's INT2 |
adisuciu | 0:2e21c4508cab | 355 | * @param data - data to be written to INTMAP2 |
adisuciu | 0:2e21c4508cab | 356 | * @param pull - (optional) configures pullup on In pin |
adisuciu | 0:2e21c4508cab | 357 | */ |
adisuciu | 0:2e21c4508cab | 358 | void ADXL362::set_polling_interrupt2_pin(PinName in, uint8_t data, |
adisuciu | 0:2e21c4508cab | 359 | PinMode pull) |
adisuciu | 0:2e21c4508cab | 360 | { |
adisuciu | 0:2e21c4508cab | 361 | if ((data & 0x7F) != 0) { |
adisuciu | 0:2e21c4508cab | 362 | write_reg(INTMAP2, data); |
adisuciu | 0:2e21c4508cab | 363 | _int2_poll = DigitalIn(in); |
adisuciu | 0:2e21c4508cab | 364 | _int2_poll.mode(pull); |
adisuciu | 0:2e21c4508cab | 365 | if (data & 0x80) { |
adisuciu | 0:2e21c4508cab | 366 | _int2_act_low = true; |
adisuciu | 0:2e21c4508cab | 367 | } else { |
adisuciu | 0:2e21c4508cab | 368 | _int2_act_low = false; |
adisuciu | 0:2e21c4508cab | 369 | } |
adisuciu | 0:2e21c4508cab | 370 | } |
adisuciu | 0:2e21c4508cab | 371 | } |
adisuciu | 0:2e21c4508cab | 372 | |
adisuciu | 0:2e21c4508cab | 373 | /** |
adisuciu | 0:2e21c4508cab | 374 | * Gets the active state of the INT1 pin |
adisuciu | 0:2e21c4508cab | 375 | * @return true if active, false if not active |
adisuciu | 0:2e21c4508cab | 376 | */ |
adisuciu | 0:2e21c4508cab | 377 | bool ADXL362::get_int1() |
adisuciu | 0:2e21c4508cab | 378 | { |
adisuciu | 0:2e21c4508cab | 379 | if(_int1_poll != NC) return (_int1_poll.read() != _int1_act_low); // boolean XOR |
adisuciu | 0:2e21c4508cab | 380 | else return (_int1->read() != _int1_act_low); |
adisuciu | 0:2e21c4508cab | 381 | } |
adisuciu | 0:2e21c4508cab | 382 | |
adisuciu | 0:2e21c4508cab | 383 | /** |
adisuciu | 0:2e21c4508cab | 384 | * Gets the active state of the INT2 pin |
adisuciu | 0:2e21c4508cab | 385 | * @return true if active, false if not active |
adisuciu | 0:2e21c4508cab | 386 | */ |
adisuciu | 0:2e21c4508cab | 387 | bool ADXL362::get_int2() |
adisuciu | 0:2e21c4508cab | 388 | { |
adisuciu | 0:2e21c4508cab | 389 | if(_int2_poll != NC) return (_int1_poll.read() != _int1_act_low); // boolean XOR |
adisuciu | 0:2e21c4508cab | 390 | else return (_int2->read() != _int2_act_low); |
adisuciu | 0:2e21c4508cab | 391 | } |
adisuciu | 0:2e21c4508cab | 392 | |
adisuciu | 0:2e21c4508cab | 393 | |
adisuciu | 0:2e21c4508cab | 394 | /** |
adisuciu | 0:2e21c4508cab | 395 | * Configures the INT1 pin of the ADXL362 to be used in interrupt mode |
adisuciu | 0:2e21c4508cab | 396 | * @param in - uC pin connected to ADXL362's INT1 |
adisuciu | 0:2e21c4508cab | 397 | * @param data - data to be written to INTMAP1 |
adisuciu | 0:2e21c4508cab | 398 | * @param callback_rising - rising edge interrupt callback - can be set to NULL if no callback is required for rising edge |
adisuciu | 0:2e21c4508cab | 399 | * @param callback_falling - falling edge interrupt callback - can be set to NULL if no callback is required for falling edge |
adisuciu | 0:2e21c4508cab | 400 | * @param pull - (optional) configures pullup on In pin |
adisuciu | 0:2e21c4508cab | 401 | */ |
adisuciu | 0:2e21c4508cab | 402 | void ADXL362::set_interrupt1_pin(PinName in, uint8_t data, |
adisuciu | 0:2e21c4508cab | 403 | void (*callback_rising)(void), void (*callback_falling)(void), PinMode pull) |
adisuciu | 0:2e21c4508cab | 404 | { |
adisuciu | 0:2e21c4508cab | 405 | if ((data & 0x7F) != 0) { |
adisuciu | 0:2e21c4508cab | 406 | write_reg(INTMAP1, data); |
adisuciu | 0:2e21c4508cab | 407 | delete _int1; |
adisuciu | 0:2e21c4508cab | 408 | _int1 = new InterruptIn(in); |
adisuciu | 0:2e21c4508cab | 409 | _int1->mode(pull); |
adisuciu | 0:2e21c4508cab | 410 | if(callback_falling != NULL) _int1->fall(callback_falling); |
adisuciu | 0:2e21c4508cab | 411 | if(callback_rising != NULL) _int1->rise(callback_rising); |
adisuciu | 0:2e21c4508cab | 412 | if (data & 0x80) { |
adisuciu | 0:2e21c4508cab | 413 | _int1_act_low = true; |
adisuciu | 0:2e21c4508cab | 414 | } else { |
adisuciu | 0:2e21c4508cab | 415 | _int1_act_low = false; |
adisuciu | 0:2e21c4508cab | 416 | } |
adisuciu | 0:2e21c4508cab | 417 | } |
adisuciu | 0:2e21c4508cab | 418 | } |
adisuciu | 0:2e21c4508cab | 419 | |
adisuciu | 0:2e21c4508cab | 420 | |
adisuciu | 0:2e21c4508cab | 421 | /** |
adisuciu | 0:2e21c4508cab | 422 | * Configures the INT2 pin of the ADXL362 to be used in interrupt mode |
adisuciu | 0:2e21c4508cab | 423 | * @param in - uC pin connected to ADXL362's INT2 |
adisuciu | 0:2e21c4508cab | 424 | * @param data - data to be written to INTMAP2 |
adisuciu | 0:2e21c4508cab | 425 | * @param callback_rising - rising edge interrupt callback - can be set to NULL if no callback is required for rising edge |
adisuciu | 0:2e21c4508cab | 426 | * @param callback_falling - falling edge interrupt callback - can be set to NULL if no callback is required for falling edge |
adisuciu | 0:2e21c4508cab | 427 | * @param pull - (optional) configures pullup on In pin |
adisuciu | 0:2e21c4508cab | 428 | */ |
adisuciu | 0:2e21c4508cab | 429 | void ADXL362::set_interrupt2_pin(PinName in, uint8_t data, |
adisuciu | 0:2e21c4508cab | 430 | void (*callback_rising)(void), void (*callback_falling)(void), PinMode pull) |
adisuciu | 0:2e21c4508cab | 431 | { |
adisuciu | 0:2e21c4508cab | 432 | if ((data & 0x7F) != 0) { |
adisuciu | 0:2e21c4508cab | 433 | write_reg(INTMAP2, data); |
adisuciu | 0:2e21c4508cab | 434 | delete _int2; |
adisuciu | 0:2e21c4508cab | 435 | _int2 = new InterruptIn(in); |
adisuciu | 0:2e21c4508cab | 436 | _int2->mode(pull); |
adisuciu | 0:2e21c4508cab | 437 | if(callback_falling != NULL) _int2->fall(callback_falling); |
adisuciu | 0:2e21c4508cab | 438 | if(callback_rising != NULL) _int2->rise(callback_rising); |
adisuciu | 0:2e21c4508cab | 439 | if (data & 0x80) { |
adisuciu | 0:2e21c4508cab | 440 | _int2_act_low = true; |
adisuciu | 0:2e21c4508cab | 441 | } else { |
adisuciu | 0:2e21c4508cab | 442 | _int2_act_low = false; |
adisuciu | 0:2e21c4508cab | 443 | } |
adisuciu | 0:2e21c4508cab | 444 | } |
adisuciu | 0:2e21c4508cab | 445 | } |
adisuciu | 0:2e21c4508cab | 446 | |
adisuciu | 0:2e21c4508cab | 447 | /** |
adisuciu | 0:2e21c4508cab | 448 | * Enables external interrupt registration for pin configured as INT1 |
adisuciu | 0:2e21c4508cab | 449 | * To enable this interrupt, it must first be configured using ADXL362::set_interrupt1_pin() |
adisuciu | 0:2e21c4508cab | 450 | */ |
adisuciu | 0:2e21c4508cab | 451 | void ADXL362::enable_interrupt1() |
adisuciu | 0:2e21c4508cab | 452 | { |
adisuciu | 0:2e21c4508cab | 453 | _int1->enable_irq(); |
adisuciu | 0:2e21c4508cab | 454 | } |
adisuciu | 0:2e21c4508cab | 455 | |
adisuciu | 0:2e21c4508cab | 456 | /** |
adisuciu | 0:2e21c4508cab | 457 | * Enables external interrupt registration for pin configured as INT2 |
adisuciu | 0:2e21c4508cab | 458 | * * To enable this interrupt, it must first be configured using ADXL362::set_interrupt2_pin() |
adisuciu | 0:2e21c4508cab | 459 | */ |
adisuciu | 0:2e21c4508cab | 460 | void ADXL362::enable_interrupt2() |
adisuciu | 0:2e21c4508cab | 461 | { |
adisuciu | 0:2e21c4508cab | 462 | _int2->enable_irq(); |
adisuciu | 0:2e21c4508cab | 463 | } |
adisuciu | 0:2e21c4508cab | 464 | |
adisuciu | 0:2e21c4508cab | 465 | /** |
adisuciu | 0:2e21c4508cab | 466 | * Disables external interrupt registration for pin configured as INT1 |
adisuciu | 0:2e21c4508cab | 467 | */ |
adisuciu | 0:2e21c4508cab | 468 | void ADXL362::disable_interrupt1() |
adisuciu | 0:2e21c4508cab | 469 | { |
adisuciu | 0:2e21c4508cab | 470 | _int1->disable_irq(); |
adisuciu | 0:2e21c4508cab | 471 | } |
adisuciu | 0:2e21c4508cab | 472 | |
adisuciu | 0:2e21c4508cab | 473 | /** |
adisuciu | 0:2e21c4508cab | 474 | * Disables external interrupt registration for pin configured as INT2 |
adisuciu | 0:2e21c4508cab | 475 | */ |
adisuciu | 0:2e21c4508cab | 476 | void ADXL362::disable_interrupt2() |
adisuciu | 0:2e21c4508cab | 477 | { |
adisuciu | 0:2e21c4508cab | 478 | _int2->disable_irq(); |
adisuciu | 0:2e21c4508cab | 479 | } |
adisuciu | 0:2e21c4508cab | 480 | |
adisuciu | 0:2e21c4508cab | 481 | /** |
adisuciu | 0:2e21c4508cab | 482 | * Sets the POWER_CTL register |
adisuciu | 0:2e21c4508cab | 483 | * @param data - data to be written to the register |
adisuciu | 0:2e21c4508cab | 484 | */ |
adisuciu | 0:2e21c4508cab | 485 | void ADXL362::set_power_ctl_reg(uint8_t data) |
adisuciu | 0:2e21c4508cab | 486 | { |
adisuciu | 0:2e21c4508cab | 487 | write_reg(POWER_CTL, data); |
adisuciu | 0:2e21c4508cab | 488 | } |
adisuciu | 0:2e21c4508cab | 489 | |
adisuciu | 0:2e21c4508cab | 490 | /** |
adisuciu | 0:2e21c4508cab | 491 | * Sets the FILTER_CTL register |
adisuciu | 0:2e21c4508cab | 492 | * @param data - data to be written to the register |
adisuciu | 0:2e21c4508cab | 493 | */ |
adisuciu | 0:2e21c4508cab | 494 | void ADXL362::set_filter_ctl_reg(uint8_t data) |
adisuciu | 0:2e21c4508cab | 495 | { |
adisuciu | 0:2e21c4508cab | 496 | write_reg(FILTER_CTL, data); |
adisuciu | 0:2e21c4508cab | 497 | } |
adisuciu | 0:2e21c4508cab | 498 | |
adisuciu | 0:2e21c4508cab | 499 | /** |
adisuciu | 0:2e21c4508cab | 500 | * Reads the STATUS register of the ADXL362 |
adisuciu | 0:2e21c4508cab | 501 | * @return - data in the status register |
adisuciu | 0:2e21c4508cab | 502 | */ |
adisuciu | 0:2e21c4508cab | 503 | uint8_t ADXL362::read_status() |
adisuciu | 0:2e21c4508cab | 504 | { |
adisuciu | 0:2e21c4508cab | 505 | return read_reg(STATUS); |
adisuciu | 0:2e21c4508cab | 506 | } |
adisuciu | 0:2e21c4508cab | 507 | |
adisuciu | 0:2e21c4508cab | 508 | /** |
adisuciu | 0:2e21c4508cab | 509 | * Reads the FIFO_ENTRIES_L and FIFO_ENTRIES_H register |
adisuciu | 0:2e21c4508cab | 510 | * @return the number of entries in the FIFO |
adisuciu | 0:2e21c4508cab | 511 | */ |
adisuciu | 0:2e21c4508cab | 512 | uint16_t ADXL362::fifo_read_nr_of_entries() |
adisuciu | 0:2e21c4508cab | 513 | { |
adisuciu | 0:2e21c4508cab | 514 | return read_reg_u16(FIFO_ENTRIES_L); |
adisuciu | 0:2e21c4508cab | 515 | } |
adisuciu | 0:2e21c4508cab | 516 | |
adisuciu | 0:2e21c4508cab | 517 | /** |
adisuciu | 0:2e21c4508cab | 518 | * Setup for the FIFO |
adisuciu | 0:2e21c4508cab | 519 | * @param store_temp - boolean, true - temperature will be stored in the fifo. false otherwise |
adisuciu | 0:2e21c4508cab | 520 | * @param mode - ADXL362_FIFO_modes_t fifo mode |
adisuciu | 0:2e21c4508cab | 521 | * @param nr_of_entries - number of entries in the FIFO |
adisuciu | 0:2e21c4508cab | 522 | */ |
adisuciu | 0:2e21c4508cab | 523 | void ADXL362::fifo_setup(bool store_temp, ADXL362_FIFO_modes_t mode, uint16_t nr_of_entries) |
adisuciu | 0:2e21c4508cab | 524 | { |
adisuciu | 0:2e21c4508cab | 525 | uint8_t fifo_ctl = static_cast<uint8_t>(mode); |
adisuciu | 0:2e21c4508cab | 526 | _temp_stored_in_fifo = store_temp; |
adisuciu | 0:2e21c4508cab | 527 | |
adisuciu | 0:2e21c4508cab | 528 | fifo_ctl = fifo_ctl | (static_cast<uint8_t>(_temp_stored_in_fifo) << 2); |
adisuciu | 0:2e21c4508cab | 529 | |
adisuciu | 0:2e21c4508cab | 530 | if (nr_of_entries > 0xff) { |
adisuciu | 0:2e21c4508cab | 531 | fifo_ctl = fifo_ctl | static_cast<uint8_t>(AH); |
adisuciu | 0:2e21c4508cab | 532 | } |
adisuciu | 0:2e21c4508cab | 533 | write_reg(FIFO_CONTROL, fifo_ctl); |
adisuciu | 0:2e21c4508cab | 534 | write_reg(FIFO_SAMPLES, static_cast<uint8_t>(nr_of_entries & 0xff)); |
adisuciu | 0:2e21c4508cab | 535 | |
adisuciu | 0:2e21c4508cab | 536 | } |
adisuciu | 0:2e21c4508cab | 537 | |
adisuciu | 0:2e21c4508cab | 538 | /** |
adisuciu | 0:2e21c4508cab | 539 | * Reads a FIFO entry |
adisuciu | 0:2e21c4508cab | 540 | * @return FIFO entry |
adisuciu | 0:2e21c4508cab | 541 | */ |
adisuciu | 0:2e21c4508cab | 542 | uint16_t ADXL362::fifo_read_u16() |
adisuciu | 0:2e21c4508cab | 543 | { |
adisuciu | 0:2e21c4508cab | 544 | uint16_t ret_val = 0; |
adisuciu | 0:2e21c4508cab | 545 | adxl362.format(8, _SPI_MODE); |
adisuciu | 0:2e21c4508cab | 546 | |
adisuciu | 0:2e21c4508cab | 547 | cs = false; |
adisuciu | 0:2e21c4508cab | 548 | adxl362.write(_READ_FIFO_CMD); |
adisuciu | 0:2e21c4508cab | 549 | ret_val = adxl362.write(_DUMMY_BYTE); |
adisuciu | 0:2e21c4508cab | 550 | ret_val = (ret_val) | static_cast<uint16_t>(adxl362.write(_DUMMY_BYTE) << 8); |
adisuciu | 0:2e21c4508cab | 551 | cs = true; |
adisuciu | 0:2e21c4508cab | 552 | |
adisuciu | 0:2e21c4508cab | 553 | return ret_val; |
adisuciu | 0:2e21c4508cab | 554 | } |
adisuciu | 0:2e21c4508cab | 555 | |
adisuciu | 0:2e21c4508cab | 556 | /** |
adisuciu | 0:2e21c4508cab | 557 | * Reads 3(4) bytes from the FIFO(if store_temp was set), assembles the data in the format used by the scan method |
adisuciu | 0:2e21c4508cab | 558 | * ADXL362::fifo_setup() needs to be called before calling fifo_scan to ensure correct fifo operation |
adisuciu | 0:2e21c4508cab | 559 | * fifo_scan and fifo_read_u16 should not be used as fifo_read_u16 disaligns the fifo therefore |
adisuciu | 0:2e21c4508cab | 560 | * fifo_scan will return data from multiple samples |
adisuciu | 0:2e21c4508cab | 561 | * @return scanned data from the fifo in the 0xXXYYZZTT format |
adisuciu | 0:2e21c4508cab | 562 | */ |
adisuciu | 0:2e21c4508cab | 563 | uint64_t ADXL362::fifo_scan() |
adisuciu | 0:2e21c4508cab | 564 | { |
adisuciu | 0:2e21c4508cab | 565 | |
adisuciu | 0:2e21c4508cab | 566 | uint64_t ret_val = 0; |
adisuciu | 0:2e21c4508cab | 567 | uint16_t x = 0, y = 0, z = 0, dummy, t = 0, sample_type; |
adisuciu | 0:2e21c4508cab | 568 | |
adisuciu | 0:2e21c4508cab | 569 | adxl362.format(8, _SPI_MODE); |
adisuciu | 0:2e21c4508cab | 570 | cs = false; |
adisuciu | 0:2e21c4508cab | 571 | adxl362.write(_READ_FIFO_CMD); |
adisuciu | 0:2e21c4508cab | 572 | uint8_t samples = (_temp_stored_in_fifo) ? 4 : 3; |
adisuciu | 0:2e21c4508cab | 573 | for(uint8_t i = 0; i < samples; i++) { |
adisuciu | 0:2e21c4508cab | 574 | dummy = adxl362.write(_DUMMY_BYTE); |
adisuciu | 0:2e21c4508cab | 575 | dummy = dummy | static_cast<uint16_t>(adxl362.write(_DUMMY_BYTE) << 8); |
adisuciu | 0:2e21c4508cab | 576 | sample_type = (dummy & 0xc000) >> 14; |
adisuciu | 0:2e21c4508cab | 577 | dummy = dummy & 0x3fff; |
adisuciu | 0:2e21c4508cab | 578 | switch(sample_type) { |
adisuciu | 0:2e21c4508cab | 579 | case 0: // x |
adisuciu | 0:2e21c4508cab | 580 | x = dummy; |
adisuciu | 0:2e21c4508cab | 581 | break; |
adisuciu | 0:2e21c4508cab | 582 | case 1: // y |
adisuciu | 0:2e21c4508cab | 583 | y = dummy; |
adisuciu | 0:2e21c4508cab | 584 | break; |
adisuciu | 0:2e21c4508cab | 585 | case 2: // z |
adisuciu | 0:2e21c4508cab | 586 | z = dummy; |
adisuciu | 0:2e21c4508cab | 587 | break; |
adisuciu | 0:2e21c4508cab | 588 | case 3: // temp |
adisuciu | 0:2e21c4508cab | 589 | t = dummy; |
adisuciu | 0:2e21c4508cab | 590 | break; |
adisuciu | 0:2e21c4508cab | 591 | } |
adisuciu | 0:2e21c4508cab | 592 | |
adisuciu | 0:2e21c4508cab | 593 | } |
adisuciu | 0:2e21c4508cab | 594 | |
adisuciu | 0:2e21c4508cab | 595 | // format xxyyzztt |
adisuciu | 0:2e21c4508cab | 596 | ret_val = static_cast<uint64_t> (x) << 48; |
adisuciu | 0:2e21c4508cab | 597 | ret_val |= static_cast<uint64_t>(y) << 32; |
adisuciu | 0:2e21c4508cab | 598 | ret_val |= static_cast<uint64_t>(z) << 16; |
adisuciu | 0:2e21c4508cab | 599 | ret_val |= static_cast<uint64_t>(t); |
adisuciu | 0:2e21c4508cab | 600 | cs = true; |
adisuciu | 0:2e21c4508cab | 601 | return ret_val; |
adisuciu | 0:2e21c4508cab | 602 | } |