ADXL345_I2C -

Users » SED9008 » Code » ADXL345_I2C

ADXL345_I2C.cpp@0:a973ef498a1d, 2012-06-01 (annotated)

Committer:: SED9008
Date:: Fri Jun 01 08:16:28 2012 +0000
Revision:: 0:a973ef498a1d

Who changed what in which revision?

User	Revision	Line number	New contents of line
SED9008	0:a973ef498a1d	1	/**
SED9008	0:a973ef498a1d	2	* @author Jose R. Padron
SED9008	0:a973ef498a1d	3	*
SED9008	0:a973ef498a1d	4	* @section LICENSE
SED9008	0:a973ef498a1d	5	*
SED9008	0:a973ef498a1d	6	* Copyright (c) 2010 ARM Limited
SED9008	0:a973ef498a1d	7	*
SED9008	0:a973ef498a1d	8	* Permission is hereby granted, free of charge, to any person obtaining a copy
SED9008	0:a973ef498a1d	9	* of this software and associated documentation files (the "Software"), to deal
SED9008	0:a973ef498a1d	10	* in the Software without restriction, including without limitation the rights
SED9008	0:a973ef498a1d	11	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
SED9008	0:a973ef498a1d	12	* copies of the Software, and to permit persons to whom the Software is
SED9008	0:a973ef498a1d	13	* furnished to do so, subject to the following conditions:
SED9008	0:a973ef498a1d	14	*
SED9008	0:a973ef498a1d	15	* The above copyright notice and this permission notice shall be included in
SED9008	0:a973ef498a1d	16	* all copies or substantial portions of the Software.
SED9008	0:a973ef498a1d	17	*
SED9008	0:a973ef498a1d	18	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
SED9008	0:a973ef498a1d	19	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
SED9008	0:a973ef498a1d	20	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
SED9008	0:a973ef498a1d	21	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
SED9008	0:a973ef498a1d	22	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
SED9008	0:a973ef498a1d	23	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
SED9008	0:a973ef498a1d	24	* THE SOFTWARE.
SED9008	0:a973ef498a1d	25	*
SED9008	0:a973ef498a1d	26	* @section DESCRIPTION
SED9008	0:a973ef498a1d	27	*
SED9008	0:a973ef498a1d	28	* ADXL345, triple axis, digital interface, accelerometer.
SED9008	0:a973ef498a1d	29	*
SED9008	0:a973ef498a1d	30	* Datasheet:
SED9008	0:a973ef498a1d	31	*
SED9008	0:a973ef498a1d	32	* http://www.analog.com/static/imported-files/data_sheets/ADXL345.pdf
SED9008	0:a973ef498a1d	33	*/
SED9008	0:a973ef498a1d	34
SED9008	0:a973ef498a1d	35	/**
SED9008	0:a973ef498a1d	36	* Includes
SED9008	0:a973ef498a1d	37	*/
SED9008	0:a973ef498a1d	38	#include "ADXL345_I2C.h"
SED9008	0:a973ef498a1d	39
SED9008	0:a973ef498a1d	40	ADXL345_I2C::ADXL345_I2C(PinName sda,
SED9008	0:a973ef498a1d	41	PinName scl) : i2c_(sda,scl) {
SED9008	0:a973ef498a1d	42
SED9008	0:a973ef498a1d	43
SED9008	0:a973ef498a1d	44	//100KHz, as specified by the datasheet.
SED9008	0:a973ef498a1d	45	i2c_.frequency(100000);
SED9008	0:a973ef498a1d	46	wait_us(500);
SED9008	0:a973ef498a1d	47
SED9008	0:a973ef498a1d	48	}
SED9008	0:a973ef498a1d	49
SED9008	0:a973ef498a1d	50	char ADXL345_I2C::getDevId(void) {
SED9008	0:a973ef498a1d	51
SED9008	0:a973ef498a1d	52	return oneByteRead(ADXL345_DEVID_REG);
SED9008	0:a973ef498a1d	53
SED9008	0:a973ef498a1d	54	}
SED9008	0:a973ef498a1d	55
SED9008	0:a973ef498a1d	56	int ADXL345_I2C::getTapThreshold(void) {
SED9008	0:a973ef498a1d	57
SED9008	0:a973ef498a1d	58	return oneByteRead(ADXL345_THRESH_TAP_REG);
SED9008	0:a973ef498a1d	59
SED9008	0:a973ef498a1d	60	}
SED9008	0:a973ef498a1d	61
SED9008	0:a973ef498a1d	62	void ADXL345_I2C::setTapThreshold(int threshold) {
SED9008	0:a973ef498a1d	63
SED9008	0:a973ef498a1d	64	oneByteWrite(ADXL345_THRESH_TAP_REG, threshold);
SED9008	0:a973ef498a1d	65
SED9008	0:a973ef498a1d	66	}
SED9008	0:a973ef498a1d	67
SED9008	0:a973ef498a1d	68	int ADXL345_I2C::getOffset(int axis) {
SED9008	0:a973ef498a1d	69
SED9008	0:a973ef498a1d	70	int address = 0;
SED9008	0:a973ef498a1d	71
SED9008	0:a973ef498a1d	72	if (axis == ADXL345_X) {
SED9008	0:a973ef498a1d	73	address = ADXL345_OFSX_REG;
SED9008	0:a973ef498a1d	74	} else if (axis == ADXL345_Y) {
SED9008	0:a973ef498a1d	75	address = ADXL345_OFSY_REG;
SED9008	0:a973ef498a1d	76	} else if (axis == ADXL345_Z) {
SED9008	0:a973ef498a1d	77	address = ADXL345_OFSZ_REG;
SED9008	0:a973ef498a1d	78	}
SED9008	0:a973ef498a1d	79
SED9008	0:a973ef498a1d	80	return oneByteRead(address);
SED9008	0:a973ef498a1d	81
SED9008	0:a973ef498a1d	82	}
SED9008	0:a973ef498a1d	83
SED9008	0:a973ef498a1d	84	void ADXL345_I2C::setOffset(int axis, char offset) {
SED9008	0:a973ef498a1d	85
SED9008	0:a973ef498a1d	86	char address = 0;
SED9008	0:a973ef498a1d	87
SED9008	0:a973ef498a1d	88	if (axis == ADXL345_X) {
SED9008	0:a973ef498a1d	89	address = ADXL345_OFSX_REG;
SED9008	0:a973ef498a1d	90	} else if (axis == ADXL345_Y) {
SED9008	0:a973ef498a1d	91	address = ADXL345_OFSY_REG;
SED9008	0:a973ef498a1d	92	} else if (axis == ADXL345_Z) {
SED9008	0:a973ef498a1d	93	address = ADXL345_OFSZ_REG;
SED9008	0:a973ef498a1d	94	}
SED9008	0:a973ef498a1d	95
SED9008	0:a973ef498a1d	96	return oneByteWrite(address, offset);
SED9008	0:a973ef498a1d	97
SED9008	0:a973ef498a1d	98	}
SED9008	0:a973ef498a1d	99
SED9008	0:a973ef498a1d	100	int ADXL345_I2C::getTapDuration(void) {
SED9008	0:a973ef498a1d	101
SED9008	0:a973ef498a1d	102	return oneByteRead(ADXL345_DUR_REG)*625;
SED9008	0:a973ef498a1d	103
SED9008	0:a973ef498a1d	104	}
SED9008	0:a973ef498a1d	105
SED9008	0:a973ef498a1d	106	void ADXL345_I2C::setTapDuration(int duration_us) {
SED9008	0:a973ef498a1d	107
SED9008	0:a973ef498a1d	108	int tapDuration = duration_us / 625;
SED9008	0:a973ef498a1d	109
SED9008	0:a973ef498a1d	110	oneByteWrite(ADXL345_DUR_REG, tapDuration);
SED9008	0:a973ef498a1d	111
SED9008	0:a973ef498a1d	112	}
SED9008	0:a973ef498a1d	113
SED9008	0:a973ef498a1d	114	float ADXL345_I2C::getTapLatency(void) {
SED9008	0:a973ef498a1d	115
SED9008	0:a973ef498a1d	116	return oneByteRead(ADXL345_LATENT_REG)*1.25;
SED9008	0:a973ef498a1d	117
SED9008	0:a973ef498a1d	118	}
SED9008	0:a973ef498a1d	119
SED9008	0:a973ef498a1d	120	void ADXL345_I2C::setTapLatency(int latency_ms) {
SED9008	0:a973ef498a1d	121
SED9008	0:a973ef498a1d	122	int tapLatency = latency_ms / 1.25;
SED9008	0:a973ef498a1d	123
SED9008	0:a973ef498a1d	124	oneByteWrite(ADXL345_LATENT_REG, tapLatency);
SED9008	0:a973ef498a1d	125
SED9008	0:a973ef498a1d	126	}
SED9008	0:a973ef498a1d	127
SED9008	0:a973ef498a1d	128	float ADXL345_I2C::getWindowTime(void) {
SED9008	0:a973ef498a1d	129
SED9008	0:a973ef498a1d	130	return oneByteRead(ADXL345_WINDOW_REG)*1.25;
SED9008	0:a973ef498a1d	131
SED9008	0:a973ef498a1d	132	}
SED9008	0:a973ef498a1d	133
SED9008	0:a973ef498a1d	134	void ADXL345_I2C::setWindowTime(int window_ms) {
SED9008	0:a973ef498a1d	135
SED9008	0:a973ef498a1d	136	int windowTime = window_ms / 1.25;
SED9008	0:a973ef498a1d	137
SED9008	0:a973ef498a1d	138	oneByteWrite(ADXL345_WINDOW_REG, windowTime);
SED9008	0:a973ef498a1d	139
SED9008	0:a973ef498a1d	140	}
SED9008	0:a973ef498a1d	141
SED9008	0:a973ef498a1d	142	int ADXL345_I2C::getActivityThreshold(void) {
SED9008	0:a973ef498a1d	143
SED9008	0:a973ef498a1d	144	return oneByteRead(ADXL345_THRESH_ACT_REG);
SED9008	0:a973ef498a1d	145
SED9008	0:a973ef498a1d	146	}
SED9008	0:a973ef498a1d	147
SED9008	0:a973ef498a1d	148	void ADXL345_I2C::setActivityThreshold(int threshold) {
SED9008	0:a973ef498a1d	149
SED9008	0:a973ef498a1d	150	oneByteWrite(ADXL345_THRESH_ACT_REG, threshold);
SED9008	0:a973ef498a1d	151
SED9008	0:a973ef498a1d	152	}
SED9008	0:a973ef498a1d	153
SED9008	0:a973ef498a1d	154	int ADXL345_I2C::getInactivityThreshold(void) {
SED9008	0:a973ef498a1d	155
SED9008	0:a973ef498a1d	156	return oneByteRead(ADXL345_THRESH_INACT_REG);
SED9008	0:a973ef498a1d	157
SED9008	0:a973ef498a1d	158	}
SED9008	0:a973ef498a1d	159
SED9008	0:a973ef498a1d	160	void ADXL345_I2C::setInactivityThreshold(int threshold) {
SED9008	0:a973ef498a1d	161
SED9008	0:a973ef498a1d	162	return oneByteWrite(ADXL345_THRESH_INACT_REG, threshold);
SED9008	0:a973ef498a1d	163
SED9008	0:a973ef498a1d	164	}
SED9008	0:a973ef498a1d	165
SED9008	0:a973ef498a1d	166	int ADXL345_I2C::getTimeInactivity(void) {
SED9008	0:a973ef498a1d	167
SED9008	0:a973ef498a1d	168	return oneByteRead(ADXL345_TIME_INACT_REG);
SED9008	0:a973ef498a1d	169
SED9008	0:a973ef498a1d	170	}
SED9008	0:a973ef498a1d	171
SED9008	0:a973ef498a1d	172	void ADXL345_I2C::setTimeInactivity(int timeInactivity) {
SED9008	0:a973ef498a1d	173
SED9008	0:a973ef498a1d	174	oneByteWrite(ADXL345_TIME_INACT_REG, timeInactivity);
SED9008	0:a973ef498a1d	175
SED9008	0:a973ef498a1d	176	}
SED9008	0:a973ef498a1d	177
SED9008	0:a973ef498a1d	178	int ADXL345_I2C::getActivityInactivityControl(void) {
SED9008	0:a973ef498a1d	179
SED9008	0:a973ef498a1d	180	return oneByteRead(ADXL345_ACT_INACT_CTL_REG);
SED9008	0:a973ef498a1d	181
SED9008	0:a973ef498a1d	182	}
SED9008	0:a973ef498a1d	183
SED9008	0:a973ef498a1d	184	void ADXL345_I2C::setActivityInactivityControl(int settings) {
SED9008	0:a973ef498a1d	185
SED9008	0:a973ef498a1d	186	oneByteWrite(ADXL345_ACT_INACT_CTL_REG, settings);
SED9008	0:a973ef498a1d	187
SED9008	0:a973ef498a1d	188	}
SED9008	0:a973ef498a1d	189
SED9008	0:a973ef498a1d	190	int ADXL345_I2C::getFreefallThreshold(void) {
SED9008	0:a973ef498a1d	191
SED9008	0:a973ef498a1d	192	return oneByteRead(ADXL345_THRESH_FF_REG);
SED9008	0:a973ef498a1d	193
SED9008	0:a973ef498a1d	194	}
SED9008	0:a973ef498a1d	195
SED9008	0:a973ef498a1d	196	void ADXL345_I2C::setFreefallThreshold(int threshold) {
SED9008	0:a973ef498a1d	197
SED9008	0:a973ef498a1d	198	oneByteWrite(ADXL345_THRESH_FF_REG, threshold);
SED9008	0:a973ef498a1d	199
SED9008	0:a973ef498a1d	200	}
SED9008	0:a973ef498a1d	201
SED9008	0:a973ef498a1d	202	int ADXL345_I2C::getFreefallTime(void) {
SED9008	0:a973ef498a1d	203
SED9008	0:a973ef498a1d	204	return oneByteRead(ADXL345_TIME_FF_REG)*5;
SED9008	0:a973ef498a1d	205
SED9008	0:a973ef498a1d	206	}
SED9008	0:a973ef498a1d	207
SED9008	0:a973ef498a1d	208	void ADXL345_I2C::setFreefallTime(int freefallTime_ms) {
SED9008	0:a973ef498a1d	209
SED9008	0:a973ef498a1d	210	int freefallTime = freefallTime_ms / 5;
SED9008	0:a973ef498a1d	211
SED9008	0:a973ef498a1d	212	oneByteWrite(ADXL345_TIME_FF_REG, freefallTime);
SED9008	0:a973ef498a1d	213
SED9008	0:a973ef498a1d	214	}
SED9008	0:a973ef498a1d	215
SED9008	0:a973ef498a1d	216	int ADXL345_I2C::getTapAxisControl(void) {
SED9008	0:a973ef498a1d	217
SED9008	0:a973ef498a1d	218	return oneByteRead(ADXL345_TAP_AXES_REG);
SED9008	0:a973ef498a1d	219
SED9008	0:a973ef498a1d	220	}
SED9008	0:a973ef498a1d	221
SED9008	0:a973ef498a1d	222	void ADXL345_I2C::setTapAxisControl(int settings) {
SED9008	0:a973ef498a1d	223
SED9008	0:a973ef498a1d	224	oneByteWrite(ADXL345_TAP_AXES_REG, settings);
SED9008	0:a973ef498a1d	225
SED9008	0:a973ef498a1d	226	}
SED9008	0:a973ef498a1d	227
SED9008	0:a973ef498a1d	228	int ADXL345_I2C::getTapSource(void) {
SED9008	0:a973ef498a1d	229
SED9008	0:a973ef498a1d	230	return oneByteRead(ADXL345_ACT_TAP_STATUS_REG);
SED9008	0:a973ef498a1d	231
SED9008	0:a973ef498a1d	232	}
SED9008	0:a973ef498a1d	233
SED9008	0:a973ef498a1d	234	void ADXL345_I2C::setPowerMode(char mode) {
SED9008	0:a973ef498a1d	235
SED9008	0:a973ef498a1d	236	//Get the current register contents, so we don't clobber the rate value.
SED9008	0:a973ef498a1d	237	char registerContents = oneByteRead(ADXL345_BW_RATE_REG);
SED9008	0:a973ef498a1d	238
SED9008	0:a973ef498a1d	239	registerContents = (mode << 4) \| registerContents;
SED9008	0:a973ef498a1d	240
SED9008	0:a973ef498a1d	241	oneByteWrite(ADXL345_BW_RATE_REG, registerContents);
SED9008	0:a973ef498a1d	242
SED9008	0:a973ef498a1d	243	}
SED9008	0:a973ef498a1d	244
SED9008	0:a973ef498a1d	245	int ADXL345_I2C::getPowerControl(void) {
SED9008	0:a973ef498a1d	246
SED9008	0:a973ef498a1d	247	return oneByteRead(ADXL345_POWER_CTL_REG);
SED9008	0:a973ef498a1d	248
SED9008	0:a973ef498a1d	249	}
SED9008	0:a973ef498a1d	250
SED9008	0:a973ef498a1d	251	void ADXL345_I2C::setPowerControl(int settings) {
SED9008	0:a973ef498a1d	252
SED9008	0:a973ef498a1d	253	oneByteWrite(ADXL345_POWER_CTL_REG, settings);
SED9008	0:a973ef498a1d	254
SED9008	0:a973ef498a1d	255	}
SED9008	0:a973ef498a1d	256
SED9008	0:a973ef498a1d	257	int ADXL345_I2C::getInterruptEnableControl(void) {
SED9008	0:a973ef498a1d	258
SED9008	0:a973ef498a1d	259	return oneByteRead(ADXL345_INT_ENABLE_REG);
SED9008	0:a973ef498a1d	260
SED9008	0:a973ef498a1d	261	}
SED9008	0:a973ef498a1d	262
SED9008	0:a973ef498a1d	263	void ADXL345_I2C::setInterruptEnableControl(int settings) {
SED9008	0:a973ef498a1d	264
SED9008	0:a973ef498a1d	265	oneByteWrite(ADXL345_INT_ENABLE_REG, settings);
SED9008	0:a973ef498a1d	266
SED9008	0:a973ef498a1d	267	}
SED9008	0:a973ef498a1d	268
SED9008	0:a973ef498a1d	269	int ADXL345_I2C::getInterruptMappingControl(void) {
SED9008	0:a973ef498a1d	270
SED9008	0:a973ef498a1d	271	return oneByteRead(ADXL345_INT_MAP_REG);
SED9008	0:a973ef498a1d	272
SED9008	0:a973ef498a1d	273	}
SED9008	0:a973ef498a1d	274
SED9008	0:a973ef498a1d	275	void ADXL345_I2C::setInterruptMappingControl(int settings) {
SED9008	0:a973ef498a1d	276
SED9008	0:a973ef498a1d	277	oneByteWrite(ADXL345_INT_MAP_REG, settings);
SED9008	0:a973ef498a1d	278
SED9008	0:a973ef498a1d	279	}
SED9008	0:a973ef498a1d	280
SED9008	0:a973ef498a1d	281	int ADXL345_I2C::getInterruptSource(void){
SED9008	0:a973ef498a1d	282
SED9008	0:a973ef498a1d	283	return oneByteRead(ADXL345_INT_SOURCE_REG);
SED9008	0:a973ef498a1d	284
SED9008	0:a973ef498a1d	285	}
SED9008	0:a973ef498a1d	286
SED9008	0:a973ef498a1d	287	int ADXL345_I2C::getDataFormatControl(void){
SED9008	0:a973ef498a1d	288
SED9008	0:a973ef498a1d	289	return oneByteRead(ADXL345_DATA_FORMAT_REG);
SED9008	0:a973ef498a1d	290
SED9008	0:a973ef498a1d	291	}
SED9008	0:a973ef498a1d	292
SED9008	0:a973ef498a1d	293	void ADXL345_I2C::setDataFormatControl(int settings){
SED9008	0:a973ef498a1d	294
SED9008	0:a973ef498a1d	295	oneByteWrite(ADXL345_DATA_FORMAT_REG, settings);
SED9008	0:a973ef498a1d	296
SED9008	0:a973ef498a1d	297	}
SED9008	0:a973ef498a1d	298
SED9008	0:a973ef498a1d	299	void ADXL345_I2C::setDataRate(int rate) {
SED9008	0:a973ef498a1d	300
SED9008	0:a973ef498a1d	301	//Get the current register contents, so we don't clobber the power bit.
SED9008	0:a973ef498a1d	302	char registerContents = oneByteRead(ADXL345_BW_RATE_REG);
SED9008	0:a973ef498a1d	303
SED9008	0:a973ef498a1d	304	registerContents &= 0x10;
SED9008	0:a973ef498a1d	305	registerContents \|= rate;
SED9008	0:a973ef498a1d	306
SED9008	0:a973ef498a1d	307	oneByteWrite(ADXL345_BW_RATE_REG, registerContents);
SED9008	0:a973ef498a1d	308
SED9008	0:a973ef498a1d	309	}
SED9008	0:a973ef498a1d	310
SED9008	0:a973ef498a1d	311	int ADXL345_I2C::getAx(){
SED9008	0:a973ef498a1d	312
SED9008	0:a973ef498a1d	313	char buffer[2];
SED9008	0:a973ef498a1d	314
SED9008	0:a973ef498a1d	315	TwoByteRead(ADXL345_DATAX0_REG, buffer);
SED9008	0:a973ef498a1d	316
SED9008	0:a973ef498a1d	317	return ((int)buffer[1] << 8 \| (int)buffer[0]);
SED9008	0:a973ef498a1d	318	}
SED9008	0:a973ef498a1d	319
SED9008	0:a973ef498a1d	320
SED9008	0:a973ef498a1d	321	int ADXL345_I2C::getAy(){
SED9008	0:a973ef498a1d	322
SED9008	0:a973ef498a1d	323	char buffer[2];
SED9008	0:a973ef498a1d	324
SED9008	0:a973ef498a1d	325	TwoByteRead(ADXL345_DATAY0_REG, buffer);
SED9008	0:a973ef498a1d	326
SED9008	0:a973ef498a1d	327	return ((int)buffer[1] << 8 \| (int)buffer[0]);
SED9008	0:a973ef498a1d	328	}
SED9008	0:a973ef498a1d	329
SED9008	0:a973ef498a1d	330	int ADXL345_I2C::getAz(){
SED9008	0:a973ef498a1d	331
SED9008	0:a973ef498a1d	332	char buffer[2];
SED9008	0:a973ef498a1d	333
SED9008	0:a973ef498a1d	334	TwoByteRead(ADXL345_DATAZ0_REG, buffer);
SED9008	0:a973ef498a1d	335
SED9008	0:a973ef498a1d	336	return ((int)buffer[1] << 8 \| (int)buffer[0]);
SED9008	0:a973ef498a1d	337	}
SED9008	0:a973ef498a1d	338
SED9008	0:a973ef498a1d	339
SED9008	0:a973ef498a1d	340
SED9008	0:a973ef498a1d	341	void ADXL345_I2C::getOutput(int* readings){
SED9008	0:a973ef498a1d	342
SED9008	0:a973ef498a1d	343	char buffer[2];
SED9008	0:a973ef498a1d	344
SED9008	0:a973ef498a1d	345	TwoByteRead(ADXL345_DATAX0_REG, buffer);
SED9008	0:a973ef498a1d	346	readings[0] = (int)buffer[1] << 8 \| (int)buffer[0];
SED9008	0:a973ef498a1d	347	TwoByteRead(ADXL345_DATAY0_REG, buffer);
SED9008	0:a973ef498a1d	348	readings[1] = (int)buffer[1] << 8 \| (int)buffer[0];
SED9008	0:a973ef498a1d	349	TwoByteRead(ADXL345_DATAZ0_REG, buffer);
SED9008	0:a973ef498a1d	350	readings[2] = (int)buffer[1] << 8 \| (int)buffer[0];
SED9008	0:a973ef498a1d	351
SED9008	0:a973ef498a1d	352	}
SED9008	0:a973ef498a1d	353
SED9008	0:a973ef498a1d	354	int ADXL345_I2C::getFifoControl(void){
SED9008	0:a973ef498a1d	355
SED9008	0:a973ef498a1d	356	return oneByteRead(ADXL345_FIFO_CTL);
SED9008	0:a973ef498a1d	357
SED9008	0:a973ef498a1d	358	}
SED9008	0:a973ef498a1d	359
SED9008	0:a973ef498a1d	360	void ADXL345_I2C::setFifoControl(int settings){
SED9008	0:a973ef498a1d	361
SED9008	0:a973ef498a1d	362	oneByteWrite(ADXL345_FIFO_STATUS, settings);
SED9008	0:a973ef498a1d	363
SED9008	0:a973ef498a1d	364	}
SED9008	0:a973ef498a1d	365
SED9008	0:a973ef498a1d	366	int ADXL345_I2C::getFifoStatus(void){
SED9008	0:a973ef498a1d	367
SED9008	0:a973ef498a1d	368	return oneByteRead(ADXL345_FIFO_STATUS);
SED9008	0:a973ef498a1d	369
SED9008	0:a973ef498a1d	370	}
SED9008	0:a973ef498a1d	371
SED9008	0:a973ef498a1d	372	char ADXL345_I2C::oneByteRead(char address) {
SED9008	0:a973ef498a1d	373
SED9008	0:a973ef498a1d	374
SED9008	0:a973ef498a1d	375	char rx[1];
SED9008	0:a973ef498a1d	376	char tx[1];
SED9008	0:a973ef498a1d	377
SED9008	0:a973ef498a1d	378	// nCS_ = 1;
SED9008	0:a973ef498a1d	379	tx[0]=address;
SED9008	0:a973ef498a1d	380
SED9008	0:a973ef498a1d	381
SED9008	0:a973ef498a1d	382	i2c_.write(ADXL345_I2C_WRITE, tx,1);
SED9008	0:a973ef498a1d	383	i2c_.read(ADXL345_I2C_READ,rx,1);
SED9008	0:a973ef498a1d	384
SED9008	0:a973ef498a1d	385	//nCS_ = 0;
SED9008	0:a973ef498a1d	386	return rx[0];
SED9008	0:a973ef498a1d	387
SED9008	0:a973ef498a1d	388	}
SED9008	0:a973ef498a1d	389
SED9008	0:a973ef498a1d	390	void ADXL345_I2C::oneByteWrite(char address, char data) {
SED9008	0:a973ef498a1d	391	// nCS_ = 1;
SED9008	0:a973ef498a1d	392	char tx[2];
SED9008	0:a973ef498a1d	393
SED9008	0:a973ef498a1d	394	tx[0]=address;
SED9008	0:a973ef498a1d	395	tx[1]=data;
SED9008	0:a973ef498a1d	396
SED9008	0:a973ef498a1d	397	i2c_.write(ADXL345_I2C_WRITE,tx,2);
SED9008	0:a973ef498a1d	398
SED9008	0:a973ef498a1d	399	//nCS_ = 0;
SED9008	0:a973ef498a1d	400	}
SED9008	0:a973ef498a1d	401
SED9008	0:a973ef498a1d	402	void ADXL345_I2C::TwoByteRead(char startAddress, char* buffer) {
SED9008	0:a973ef498a1d	403
SED9008	0:a973ef498a1d	404
SED9008	0:a973ef498a1d	405	// nCS_ = 1;
SED9008	0:a973ef498a1d	406	//Send address to start reading from.
SED9008	0:a973ef498a1d	407	char tx[1];
SED9008	0:a973ef498a1d	408	tx[0]=startAddress;
SED9008	0:a973ef498a1d	409	i2c_.write(ADXL345_I2C_WRITE,tx,1);
SED9008	0:a973ef498a1d	410	i2c_.read(ADXL345_I2C_READ,buffer,2);
SED9008	0:a973ef498a1d	411
SED9008	0:a973ef498a1d	412	//nCS_ = 0;
SED9008	0:a973ef498a1d	413	}
SED9008	0:a973ef498a1d	414
SED9008	0:a973ef498a1d	415	void ADXL345_I2C::TwoByteWrite(char startAddress, char* buffer) {
SED9008	0:a973ef498a1d	416
SED9008	0:a973ef498a1d	417	//nCS_ = 1;
SED9008	0:a973ef498a1d	418	//Send address to start reading from.
SED9008	0:a973ef498a1d	419	char tx[1];
SED9008	0:a973ef498a1d	420	tx[0]=startAddress;
SED9008	0:a973ef498a1d	421	i2c_.write(ADXL345_I2C_WRITE,tx,1);
SED9008	0:a973ef498a1d	422	i2c_.write(ADXL345_I2C_WRITE,buffer,2);
SED9008	0:a973ef498a1d	423
SED9008	0:a973ef498a1d	424
SED9008	0:a973ef498a1d	425	//nCS_ = 0;
SED9008	0:a973ef498a1d	426
SED9008	0:a973ef498a1d	427	}

Repository toolbox

Export to desktop IDE

Repository details

Type:	Library
Created:	01 Mar 2012
Imports:	6
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	0
Followers:	1

This repository is Public (Unlisted).

ADXL345_I2C.cpp@0:a973ef498a1d, 2012-06-01 (annotated)

Who changed what in which revision?

Repository toolbox

Repository details

Important Information for this Arm website

Access Warning