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Diffstat (limited to 'tmk_core/tool/mbed/mbed-sdk/libraries/tests/peripherals/ADXL345')
| -rw-r--r-- | tmk_core/tool/mbed/mbed-sdk/libraries/tests/peripherals/ADXL345/ADXL345.cpp | 405 | ||||
| -rw-r--r-- | tmk_core/tool/mbed/mbed-sdk/libraries/tests/peripherals/ADXL345/ADXL345.h | 537 |
2 files changed, 942 insertions, 0 deletions
diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/tests/peripherals/ADXL345/ADXL345.cpp b/tmk_core/tool/mbed/mbed-sdk/libraries/tests/peripherals/ADXL345/ADXL345.cpp new file mode 100644 index 000000000..6f9c85682 --- /dev/null +++ b/tmk_core/tool/mbed/mbed-sdk/libraries/tests/peripherals/ADXL345/ADXL345.cpp @@ -0,0 +1,405 @@ +/** + * @author Aaron Berk + * + * @section LICENSE + * + * Copyright (c) 2010 ARM Limited + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @section DESCRIPTION + * + * ADXL345, triple axis, digital interface, accelerometer. + * + * Datasheet: + * + * http://www.analog.com/static/imported-files/data_sheets/ADXL345.pdf + */ + +/** + * Includes + */ +#include "ADXL345.h" + +ADXL345::ADXL345(PinName mosi, + PinName miso, + PinName sck, + PinName cs) : spi_(mosi, miso, sck), nCS_(cs) { + + //2MHz, allowing us to use the fastest data rates. + spi_.frequency(2000000); + spi_.format(8,3); + + nCS_ = 1; + + wait_us(500); + +} + +int ADXL345::getDevId(void) { + + return oneByteRead(ADXL345_DEVID_REG); + +} + +int ADXL345::getTapThreshold(void) { + + return oneByteRead(ADXL345_THRESH_TAP_REG); + +} + +void ADXL345::setTapThreshold(int threshold) { + + oneByteWrite(ADXL345_THRESH_TAP_REG, threshold); + +} + +int ADXL345::getOffset(int axis) { + + int address = 0; + + if (axis == ADXL345_X) { + address = ADXL345_OFSX_REG; + } else if (axis == ADXL345_Y) { + address = ADXL345_OFSY_REG; + } else if (axis == ADXL345_Z) { + address = ADXL345_OFSZ_REG; + } + + return oneByteRead(address); + +} + +void ADXL345::setOffset(int axis, char offset) { + + int address = 0; + + if (axis == ADXL345_X) { + address = ADXL345_OFSX_REG; + } else if (axis == ADXL345_Y) { + address = ADXL345_OFSY_REG; + } else if (axis == ADXL345_Z) { + address = ADXL345_OFSZ_REG; + } + + return oneByteWrite(address, offset); + +} + +int ADXL345::getTapDuration(void) { + + return oneByteRead(ADXL345_DUR_REG)*625; + +} + +void ADXL345::setTapDuration(int duration_us) { + + int tapDuration = duration_us / 625; + + oneByteWrite(ADXL345_DUR_REG, tapDuration); + +} + +float ADXL345::getTapLatency(void) { + + return oneByteRead(ADXL345_LATENT_REG)*1.25; + +} + +void ADXL345::setTapLatency(int latency_ms) { + + int tapLatency = latency_ms / 1.25; + + oneByteWrite(ADXL345_LATENT_REG, tapLatency); + +} + +float ADXL345::getWindowTime(void) { + + return oneByteRead(ADXL345_WINDOW_REG)*1.25; + +} + +void ADXL345::setWindowTime(int window_ms) { + + int windowTime = window_ms / 1.25; + + oneByteWrite(ADXL345_WINDOW_REG, windowTime); + +} + +int ADXL345::getActivityThreshold(void) { + + return oneByteRead(ADXL345_THRESH_ACT_REG); + +} + +void ADXL345::setActivityThreshold(int threshold) { + + oneByteWrite(ADXL345_THRESH_ACT_REG, threshold); + +} + +int ADXL345::getInactivityThreshold(void) { + + return oneByteRead(ADXL345_THRESH_INACT_REG); + +} + +void ADXL345::setInactivityThreshold(int threshold) { + + return oneByteWrite(ADXL345_THRESH_INACT_REG, threshold); + +} + +int ADXL345::getTimeInactivity(void) { + + return oneByteRead(ADXL345_TIME_INACT_REG); + +} + +void ADXL345::setTimeInactivity(int timeInactivity) { + + oneByteWrite(ADXL345_TIME_INACT_REG, timeInactivity); + +} + +int ADXL345::getActivityInactivityControl(void) { + + return oneByteRead(ADXL345_ACT_INACT_CTL_REG); + +} + +void ADXL345::setActivityInactivityControl(int settings) { + + oneByteWrite(ADXL345_ACT_INACT_CTL_REG, settings); + +} + +int ADXL345::getFreefallThreshold(void) { + + return oneByteRead(ADXL345_THRESH_FF_REG); + +} + +void ADXL345::setFreefallThreshold(int threshold) { + + oneByteWrite(ADXL345_THRESH_FF_REG, threshold); + +} + +int ADXL345::getFreefallTime(void) { + + return oneByteRead(ADXL345_TIME_FF_REG)*5; + +} + +void ADXL345::setFreefallTime(int freefallTime_ms) { + + int freefallTime = freefallTime_ms / 5; + + oneByteWrite(ADXL345_TIME_FF_REG, freefallTime); + +} + +int ADXL345::getTapAxisControl(void) { + + return oneByteRead(ADXL345_TAP_AXES_REG); + +} + +void ADXL345::setTapAxisControl(int settings) { + + oneByteWrite(ADXL345_TAP_AXES_REG, settings); + +} + +int ADXL345::getTapSource(void) { + + return oneByteRead(ADXL345_ACT_TAP_STATUS_REG); + +} + +void ADXL345::setPowerMode(char mode) { + + //Get the current register contents, so we don't clobber the rate value. + char registerContents = oneByteRead(ADXL345_BW_RATE_REG); + + registerContents = (mode << 4) | registerContents; + + oneByteWrite(ADXL345_BW_RATE_REG, registerContents); + +} + +int ADXL345::getPowerControl(void) { + + return oneByteRead(ADXL345_POWER_CTL_REG); + +} + +void ADXL345::setPowerControl(int settings) { + + oneByteWrite(ADXL345_POWER_CTL_REG, settings); + +} + +int ADXL345::getInterruptEnableControl(void) { + + return oneByteRead(ADXL345_INT_ENABLE_REG); + +} + +void ADXL345::setInterruptEnableControl(int settings) { + + oneByteWrite(ADXL345_INT_ENABLE_REG, settings); + +} + +int ADXL345::getInterruptMappingControl(void) { + + return oneByteRead(ADXL345_INT_MAP_REG); + +} + +void ADXL345::setInterruptMappingControl(int settings) { + + oneByteWrite(ADXL345_INT_MAP_REG, settings); + +} + +int ADXL345::getInterruptSource(void){ + + return oneByteRead(ADXL345_INT_SOURCE_REG); + +} + +int ADXL345::getDataFormatControl(void){ + + return oneByteRead(ADXL345_DATA_FORMAT_REG); + +} + +void ADXL345::setDataFormatControl(int settings){ + + oneByteWrite(ADXL345_DATA_FORMAT_REG, settings); + +} + +void ADXL345::setDataRate(int rate) { + + //Get the current register contents, so we don't clobber the power bit. + char registerContents = oneByteRead(ADXL345_BW_RATE_REG); + + registerContents &= 0x10; + registerContents |= rate; + + oneByteWrite(ADXL345_BW_RATE_REG, registerContents); + +} + +void ADXL345::getOutput(int* readings){ + + char buffer[6]; + + multiByteRead(ADXL345_DATAX0_REG, buffer, 6); + + readings[0] = (int)buffer[1] << 8 | (int)buffer[0]; + readings[1] = (int)buffer[3] << 8 | (int)buffer[2]; + readings[2] = (int)buffer[5] << 8 | (int)buffer[4]; + +} + +int ADXL345::getFifoControl(void){ + + return oneByteRead(ADXL345_FIFO_CTL); + +} + +void ADXL345::setFifoControl(int settings){ + + oneByteWrite(ADXL345_FIFO_STATUS, settings); + +} + +int ADXL345::getFifoStatus(void){ + + return oneByteRead(ADXL345_FIFO_STATUS); + +} + +int ADXL345::oneByteRead(int address) { + + int tx = (ADXL345_SPI_READ | (address & 0x3F)); + int rx = 0; + + nCS_ = 0; + //Send address to read from. + spi_.write(tx); + //Read back contents of address. + rx = spi_.write(0x00); + nCS_ = 1; + + return rx; + +} + +void ADXL345::oneByteWrite(int address, char data) { + + int tx = (ADXL345_SPI_WRITE | (address & 0x3F)); + + nCS_ = 0; + //Send address to write to. + spi_.write(tx); + //Send data to be written. + spi_.write(data); + nCS_ = 1; + +} + +void ADXL345::multiByteRead(int startAddress, char* buffer, int size) { + + int tx = (ADXL345_SPI_READ | ADXL345_MULTI_BYTE | (startAddress & 0x3F)); + + nCS_ = 0; + //Send address to start reading from. + spi_.write(tx); + + for (int i = 0; i < size; i++) { + buffer[i] = spi_.write(0x00); + } + + nCS_ = 1; + +} + +void ADXL345::multiByteWrite(int startAddress, char* buffer, int size) { + + int tx = (ADXL345_SPI_WRITE | ADXL345_MULTI_BYTE | (startAddress & 0x3F)); + + nCS_ = 0; + //Send address to start reading from. + spi_.write(tx); + + for (int i = 0; i < size; i++) { + buffer[i] = spi_.write(0x00); + } + + nCS_ = 1; + +} diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/tests/peripherals/ADXL345/ADXL345.h b/tmk_core/tool/mbed/mbed-sdk/libraries/tests/peripherals/ADXL345/ADXL345.h new file mode 100644 index 000000000..af17c5f3e --- /dev/null +++ b/tmk_core/tool/mbed/mbed-sdk/libraries/tests/peripherals/ADXL345/ADXL345.h @@ -0,0 +1,537 @@ +/** + * @author Aaron Berk + * + * @section LICENSE + * + * Copyright (c) 2010 ARM Limited + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @section DESCRIPTION + * + * ADXL345, triple axis, digital interface, accelerometer. + * + * Datasheet: + * + * http://www.analog.com/static/imported-files/data_sheets/ADXL345.pdf + */ + +#ifndef ADXL345_H +#define ADXL345_H + +/** + * Includes + */ +#include "mbed.h" + +/** + * Defines + */ +//Registers. +#define ADXL345_DEVID_REG 0x00 +#define ADXL345_THRESH_TAP_REG 0x1D +#define ADXL345_OFSX_REG 0x1E +#define ADXL345_OFSY_REG 0x1F +#define ADXL345_OFSZ_REG 0x20 +#define ADXL345_DUR_REG 0x21 +#define ADXL345_LATENT_REG 0x22 +#define ADXL345_WINDOW_REG 0x23 +#define ADXL345_THRESH_ACT_REG 0x24 +#define ADXL345_THRESH_INACT_REG 0x25 +#define ADXL345_TIME_INACT_REG 0x26 +#define ADXL345_ACT_INACT_CTL_REG 0x27 +#define ADXL345_THRESH_FF_REG 0x28 +#define ADXL345_TIME_FF_REG 0x29 +#define ADXL345_TAP_AXES_REG 0x2A +#define ADXL345_ACT_TAP_STATUS_REG 0x2B +#define ADXL345_BW_RATE_REG 0x2C +#define ADXL345_POWER_CTL_REG 0x2D +#define ADXL345_INT_ENABLE_REG 0x2E +#define ADXL345_INT_MAP_REG 0x2F +#define ADXL345_INT_SOURCE_REG 0x30 +#define ADXL345_DATA_FORMAT_REG 0x31 +#define ADXL345_DATAX0_REG 0x32 +#define ADXL345_DATAX1_REG 0x33 +#define ADXL345_DATAY0_REG 0x34 +#define ADXL345_DATAY1_REG 0x35 +#define ADXL345_DATAZ0_REG 0x36 +#define ADXL345_DATAZ1_REG 0x37 +#define ADXL345_FIFO_CTL 0x38 +#define ADXL345_FIFO_STATUS 0x39 + +//Data rate codes. +#define ADXL345_3200HZ 0x0F +#define ADXL345_1600HZ 0x0E +#define ADXL345_800HZ 0x0D +#define ADXL345_400HZ 0x0C +#define ADXL345_200HZ 0x0B +#define ADXL345_100HZ 0x0A +#define ADXL345_50HZ 0x09 +#define ADXL345_25HZ 0x08 +#define ADXL345_12HZ5 0x07 +#define ADXL345_6HZ25 0x06 + +#define ADXL345_SPI_READ 0x80 +#define ADXL345_SPI_WRITE 0x00 +#define ADXL345_MULTI_BYTE 0x60 + +#define ADXL345_X 0x00 +#define ADXL345_Y 0x01 +#define ADXL345_Z 0x02 + +/** + * ADXL345 triple axis, digital interface, accelerometer. + */ +class ADXL345 { + +public: + + /** + * Constructor. + * + * @param mosi mbed pin to use for MOSI line of SPI interface. + * @param miso mbed pin to use for MISO line of SPI interface. + * @param sck mbed pin to use for SCK line of SPI interface. + * @param cs mbed pin to use for not chip select line of SPI interface. + */ + ADXL345(PinName mosi, PinName miso, PinName sck, PinName cs); + + /** + * Read the device ID register on the device. + * + * @return The device ID code [0xE5] + */ + int getDevId(void); + + /** + * Read the tap threshold on the device. + * + * @return The tap threshold as an 8-bit number with a scale factor of + * 62.5mg/LSB. + */ + int getTapThreshold(void); + + /** + * Set the tap threshold. + * + * @param The tap threshold as an 8-bit number with a scale factor of + * 62.5mg/LSB. + */ + void setTapThreshold(int threshold); + + /** + * Get the current offset for a particular axis. + * + * @param axis 0x00 -> X-axis + * 0x01 -> Y-axis + * 0x02 -> Z-axis + * @return The current offset as an 8-bit 2's complement number with scale + * factor 15.6mg/LSB. + */ + int getOffset(int axis); + + /** + * Set the offset for a particular axis. + * + * @param axis 0x00 -> X-axis + * 0x01 -> Y-axis + * 0x02 -> Z-axis + * @param offset The offset as an 8-bit 2's complement number with scale + * factor 15.6mg/LSB. + */ + void setOffset(int axis, char offset); + + /** + * Get the tap duration required to trigger an event. + * + * @return The max time that an event must be above the tap threshold to + * qualify as a tap event, in microseconds. + */ + int getTapDuration(void); + + /** + * Set the tap duration required to trigger an event. + * + * @param duration_us The max time that an event must be above the tap + * threshold to qualify as a tap event, in microseconds. + * Time will be normalized by the scale factor which is + * 625us/LSB. A value of 0 disables the single/double + * tap functions. + */ + void setTapDuration(int duration_us); + + /** + * Get the tap latency between the detection of a tap and the time window. + * + * @return The wait time from the detection of a tap event to the start of + * the time window during which a possible second tap event can be + * detected in milliseconds. + */ + float getTapLatency(void); + + /** + * Set the tap latency between the detection of a tap and the time window. + * + * @param latency_ms The wait time from the detection of a tap event to the + * start of the time window during which a possible + * second tap event can be detected in milliseconds. + * A value of 0 disables the double tap function. + */ + void setTapLatency(int latency_ms); + + /** + * Get the time of window between tap latency and a double tap. + * + * @return The amount of time after the expiration of the latency time + * during which a second valid tap can begin, in milliseconds. + */ + float getWindowTime(void); + + /** + * Set the time of the window between tap latency and a double tap. + * + * @param window_ms The amount of time after the expiration of the latency + * time during which a second valid tap can begin, + * in milliseconds. + */ + void setWindowTime(int window_ms); + + /** + * Get the threshold value for detecting activity. + * + * @return The threshold value for detecting activity as an 8-bit number. + * Scale factor is 62.5mg/LSB. + */ + int getActivityThreshold(void); + + /** + * Set the threshold value for detecting activity. + * + * @param threshold The threshold value for detecting activity as an 8-bit + * number. Scale factor is 62.5mg/LSB. A value of 0 may + * result in undesirable behavior if the activity + * interrupt is enabled. + */ + void setActivityThreshold(int threshold); + + /** + * Get the threshold value for detecting inactivity. + * + * @return The threshold value for detecting inactivity as an 8-bit number. + * Scale factor is 62.5mg/LSB. + */ + int getInactivityThreshold(void); + + /** + * Set the threshold value for detecting inactivity. + * + * @param threshold The threshold value for detecting inactivity as an + * 8-bit number. Scale factor is 62.5mg/LSB. + */ + void setInactivityThreshold(int threshold); + + /** + * Get the time required for inactivity to be declared. + * + * @return The amount of time that acceleration must be less than the + * inactivity threshold for inactivity to be declared, in + * seconds. + */ + int getTimeInactivity(void); + + /** + * Set the time required for inactivity to be declared. + * + * @param inactivity The amount of time that acceleration must be less than + * the inactivity threshold for inactivity to be + * declared, in seconds. A value of 0 results in an + * interrupt when the output data is less than the + * threshold inactivity. + */ + void setTimeInactivity(int timeInactivity); + + /** + * Get the activity/inactivity control settings. + * + * D7 D6 D5 D4 + * +-----------+--------------+--------------+--------------+ + * | ACT ac/dc | ACT_X enable | ACT_Y enable | ACT_Z enable | + * +-----------+--------------+--------------+--------------+ + * + * D3 D2 D1 D0 + * +-------------+----------------+----------------+----------------+ + * | INACT ac/dc | INACT_X enable | INACT_Y enable | INACT_Z enable | + * +-------------+----------------+----------------+----------------+ + * + * See datasheet for details. + * + * @return The contents of the ACT_INACT_CTL register. + */ + int getActivityInactivityControl(void); + + /** + * Set the activity/inactivity control settings. + * + * D7 D6 D5 D4 + * +-----------+--------------+--------------+--------------+ + * | ACT ac/dc | ACT_X enable | ACT_Y enable | ACT_Z enable | + * +-----------+--------------+--------------+--------------+ + * + * D3 D2 D1 D0 + * +-------------+----------------+----------------+----------------+ + * | INACT ac/dc | INACT_X enable | INACT_Y enable | INACT_Z enable | + * +-------------+----------------+----------------+----------------+ + * + * See datasheet for details. + * + * @param settings The control byte to write to the ACT_INACT_CTL register. + */ + void setActivityInactivityControl(int settings); + + /** + * Get the threshold for free fall detection. + * + * @return The threshold value for free-fall detection, as an 8-bit number, + * with scale factor 62.5mg/LSB. + */ + int getFreefallThreshold(void); + + /** + * Set the threshold for free fall detection. + * + * @return The threshold value for free-fall detection, as an 8-bit number, + * with scale factor 62.5mg/LSB. A value of 0 may result in + * undesirable behavior if the free-fall interrupt is enabled. + * Values between 300 mg and 600 mg (0x05 to 0x09) are recommended. + */ + void setFreefallThreshold(int threshold); + + /** + * Get the time required to generate a free fall interrupt. + * + * @return The minimum time that the value of all axes must be less than + * the freefall threshold to generate a free-fall interrupt, in + * milliseconds. + */ + int getFreefallTime(void); + + /** + * Set the time required to generate a free fall interrupt. + * + * @return The minimum time that the value of all axes must be less than + * the freefall threshold to generate a free-fall interrupt, in + * milliseconds. A value of 0 may result in undesirable behavior + * if the free-fall interrupt is enabled. Values between 100 ms + * and 350 ms (0x14 to 0x46) are recommended. + */ + void setFreefallTime(int freefallTime_ms); + + /** + * Get the axis tap settings. + * + * D3 D2 D1 D0 + * +----------+--------------+--------------+--------------+ + * | Suppress | TAP_X enable | TAP_Y enable | TAP_Z enable | + * +----------+--------------+--------------+--------------+ + * + * (D7-D4 are 0s). + * + * See datasheet for more details. + * + * @return The contents of the TAP_AXES register. + */ + int getTapAxisControl(void); + + /** + * Set the axis tap settings. + * + * D3 D2 D1 D0 + * +----------+--------------+--------------+--------------+ + * | Suppress | TAP_X enable | TAP_Y enable | TAP_Z enable | + * +----------+--------------+--------------+--------------+ + * + * (D7-D4 are 0s). + * + * See datasheet for more details. + * + * @param The control byte to write to the TAP_AXES register. + */ + void setTapAxisControl(int settings); + + /** + * Get the source of a tap. + * + * @return The contents of the ACT_TAP_STATUS register. + */ + int getTapSource(void); + + /** + * Set the power mode. + * + * @param mode 0 -> Normal operation. + * 1 -> Reduced power operation. + */ + void setPowerMode(char mode); + + /** + * Set the data rate. + * + * @param rate The rate code (see #defines or datasheet). + */ + void setDataRate(int rate); + + /** + * Get the power control settings. + * + * See datasheet for details. + * + * @return The contents of the POWER_CTL register. + */ + int getPowerControl(void); + + /** + * Set the power control settings. + * + * See datasheet for details. + * + * @param The control byte to write to the POWER_CTL register. + */ + void setPowerControl(int settings); + + /** + * Get the interrupt enable settings. + * + * @return The contents of the INT_ENABLE register. + */ + int getInterruptEnableControl(void); + + /** + * Set the interrupt enable settings. + * + * @param settings The control byte to write to the INT_ENABLE register. + */ + void setInterruptEnableControl(int settings); + + /** + * Get the interrupt mapping settings. + * + * @return The contents of the INT_MAP register. + */ + int getInterruptMappingControl(void); + + /** + * Set the interrupt mapping settings. + * + * @param settings The control byte to write to the INT_MAP register. + */ + void setInterruptMappingControl(int settings); + + /** + * Get the interrupt source. + * + * @return The contents of the INT_SOURCE register. + */ + int getInterruptSource(void); + + /** + * Get the data format settings. + * + * @return The contents of the DATA_FORMAT register. + */ + int getDataFormatControl(void); + + /** + * Set the data format settings. + * + * @param settings The control byte to write to the DATA_FORMAT register. + */ + void setDataFormatControl(int settings); + + /** + * Get the output of all three axes. + * + * @param Pointer to a buffer to hold the accelerometer value for the + * x-axis, y-axis and z-axis [in that order]. + */ + void getOutput(int* readings); + + /** + * Get the FIFO control settings. + * + * @return The contents of the FIFO_CTL register. + */ + int getFifoControl(void); + + /** + * Set the FIFO control settings. + * + * @param The control byte to write to the FIFO_CTL register. + */ + void setFifoControl(int settings); + + /** + * Get FIFO status. + * + * @return The contents of the FIFO_STATUS register. + */ + int getFifoStatus(void); + +private: + + SPI spi_; + DigitalOut nCS_; + + /** + * Read one byte from a register on the device. + * + * @param address Address of the register to read. + * + * @return The contents of the register address. + */ + int oneByteRead(int address); + + /** + * Write one byte to a register on the device. + * + * @param address Address of the register to write to. + * @param data The data to write into the register. + */ + void oneByteWrite(int address, char data); + + /** + * Read several consecutive bytes on the device. + * + * @param startAddress The address of the first register to read from. + * @param buffer Pointer to a buffer to store data read from the device. + * @param size The number of bytes to read. + */ + void multiByteRead(int startAddress, char* buffer, int size); + + /** + * Write several consecutive bytes on the device. + * + * @param startAddress The address of the first register to write to. + * @param buffer Pointer to a buffer which contains the data to write. + * @param size The number of bytes to write. + */ + void multiByteWrite(int startAddress, char* buffer, int size); + +}; + +#endif /* ADXL345_H */ |