[ins] refactor xsens700

This commit is contained in:
Felix Ruess
2016-02-17 23:53:11 +01:00
parent 5b876208b0
commit bd8943a15c
13 changed files with 703 additions and 632 deletions
@@ -56,6 +56,7 @@
ap.CFLAGS += -DUSE_IMU
ap.CFLAGS += -DIMU_TYPE_H=\"modules/ins/imu_xsens.h\"
ap.srcs += $(SRC_MODULES)/ins/xsens.c
ap.srcs += $(SRC_MODULES)/ins/xsens_common.c
ap.srcs += $(SRC_MODULES)/ins/imu_xsens.c
ap.srcs += $(SRC_SUBSYSTEMS)/imu.c
@@ -27,6 +27,7 @@ ap.CFLAGS += -DXSENS_LINK=uart$(XSENS_UART_NR)
ap.CFLAGS += -DUART$(XSENS_UART_NR)_BAUD=$(XSENS_UART_BAUD)
ap.CFLAGS += -DXSENS_OUTPUT_MODE=0x1836
ap.srcs += $(SRC_MODULES)/ins/xsens.c
ap.srcs += $(SRC_MODULES)/ins/xsens_common.c
ap.srcs += $(SRC_SUBSYSTEMS)/ins.c
ap.srcs += $(SRC_MODULES)/ins/ins_xsens.c
ap.CFLAGS += -DAHRS_TRIGGERED_ATTITUDE_LOOP
@@ -11,19 +11,19 @@
#########################################
## ATTITUDE
ap.CFLAGS += -DUSE_INS_MODULE
# AHRS Results
ap.CFLAGS += -DINS_TYPE_H=\"modules/ins/ins_xsens.h\"
ap.CFLAGS += -DINS_TYPE_H=\"modules/ins/ins_xsens700.h\"
ifndef XSENS_UART_BAUD
XSENS_UART_BAUD = B115200
endif
ap.CFLAGS += -DUSE_UART$(XSENS_UART_NR)
ap.CFLAGS += -DINS_LINK=uart$(XSENS_UART_NR)
ap.CFLAGS += -DXSENS_LINK=uart$(XSENS_UART_NR)
ap.CFLAGS += -DUART$(XSENS_UART_NR)_BAUD=$(XSENS_UART_BAUD)
ap.CFLAGS += -DXSENS_OUTPUT_MODE=0x1836
ap.srcs += $(SRC_MODULES)/ins/xsens700.c
ap.srcs += $(SRC_MODULES)/ins/xsens_common.c
ap.srcs += $(SRC_SUBSYSTEMS)/ins.c
ap.srcs += $(SRC_MODULES)/ins/ins_xsens700.c
ap.CFLAGS += -DAHRS_TRIGGERED_ATTITUDE_LOOP
@@ -35,7 +35,7 @@ ap.CFLAGS += -DAHRS_TRIGGERED_ATTITUDE_LOOP
ap.CFLAGS += -DUSE_GPS_XSENS
ap.CFLAGS += -DGPS_NB_CHANNELS=50
ap.CFLAGS += -DUSE_GPS
ap.CFLAGS += -DGPS_TYPE_H=\"modules/ins/ins_xsens.h\"
ap.CFLAGS += -DGPS_TYPE_H=\"modules/ins/ins_xsens700.h\"
ap.srcs += $(SRC_SUBSYSTEMS)/gps.c
+1
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@@ -27,6 +27,7 @@
#include "imu_xsens.h"
#include "xsens.h"
#include "xsens_common.h"
#include "generated/airframe.h"
+2 -3
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@@ -25,6 +25,7 @@
*/
#include "ins_xsens.h"
#include "xsens_common.h"
#include "subsystems/ins.h"
#include "generated/airframe.h"
@@ -110,7 +111,7 @@ static void gps_cb(uint8_t sender_id __attribute__((unused)),
#if USE_GPS_XSENS
void gps_xsens_init(void)
{
gps.nb_channels = 0;
xsens.gps.nb_channels = 0;
}
static void gps_xsens_publish(void)
@@ -123,8 +124,6 @@ static void gps_xsens_publish(void)
xsens.gps.last_3dfix_ticks = sys_time.nb_sec_rem;
xsens.gps.last_3dfix_time = sys_time.nb_sec;
}
// still update the global gps struct for now
gps = xsens.gps;
AbiSendMsgGPS(GPS_XSENS_ID, now_ts, &xsens.gps);
}
#endif
File diff suppressed because it is too large Load Diff
+57
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@@ -0,0 +1,57 @@
/*
* Copyright (C) 2010 ENAC
*
* This file is part of paparazzi.
*
* paparazzi is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* paparazzi is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with paparazzi; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
/**
* @file modules/ins/ins_xsens700.h
* Xsens700 as a full INS solution
*/
#ifndef INS_XSENS700_H
#define INS_XSENS700_H
#include "std.h"
#include "xsens700.h"
#ifdef AHRS_TRIGGERED_ATTITUDE_LOOP
extern volatile uint8_t new_ins_attitude;
#endif
extern float ins_pitch_neutral;
extern float ins_roll_neutral;
#define DefaultInsImpl ins_xsens700
#define InsPeriodic xsens700_periodic
#define InsEvent ins_xsens700_event
extern void ins_xsens700_init(void);
extern void ins_xsens700_register(void);
extern void ins_xsens700_event(void);
#if USE_GPS_XSENS
#ifndef PRIMARY_GPS
#define PRIMARY_GPS gps_xsens700
#endif
extern void gps_xsens700_init(void);
extern void gps_xsens700_register(void);
#endif
#endif
+3 -108
View File
@@ -24,6 +24,9 @@
*/
#include "xsens.h"
#include "xsens_common.h"
#include "generated/airframe.h"
#if USE_GPS_XSENS
#include "math/pprz_geodetic_wgs84.h"
@@ -34,34 +37,6 @@
#include "pprzlink/messages.h"
#include "subsystems/datalink/downlink.h"
volatile uint8_t xsens_msg_received;
#define XsensLinkDevice (&((XSENS_LINK).device))
#define XsensInitCheksum() { send_ck = 0; }
#define XsensUpdateChecksum(c) { send_ck += c; }
#define XsensUartSend1(c) XsensLinkDevice->put_byte(XsensLinkDevice->periph, c)
#define XsensSend1(c) { uint8_t i8=c; XsensUartSend1(i8); XsensUpdateChecksum(i8); }
#define XsensSend1ByAddr(x) { XsensSend1(*x); }
#define XsensSend2ByAddr(x) { XsensSend1(*(x+1)); XsensSend1(*x); }
#define XsensSend4ByAddr(x) { XsensSend1(*(x+3)); XsensSend1(*(x+2)); XsensSend1(*(x+1)); XsensSend1(*x); }
#define XsensHeader(msg_id, len) { \
XsensUartSend1(XSENS_START); \
XsensInitCheksum(); \
XsensSend1(XSENS_BID); \
XsensSend1(msg_id); \
XsensSend1(len); \
}
#define XsensTrailer() { uint8_t i8=0x100-send_ck; XsensUartSend1(i8); }
/** Includes macros generated from xsens_MTi-G.xml */
#include "xsens_protocol.h"
#define XSENS_MAX_PAYLOAD 254
uint8_t xsens_msg_buf[XSENS_MAX_PAYLOAD];
/* output mode : calibrated, orientation, position, velocity, status
* -----------
@@ -117,15 +92,6 @@ uint8_t xsens_msg_buf[XSENS_MAX_PAYLOAD];
#define XSENS_OUTPUT_SETTINGS 0x80000C05
#endif
#define UNINIT 0
#define GOT_START 1
#define GOT_BID 2
#define GOT_MID 3
#define GOT_LEN 4
#define GOT_DATA 5
#define GOT_CHECKSUM 6
uint8_t xsens_errorcode;
uint8_t xsens_msg_status;
uint16_t xsens_time_stamp;
@@ -138,13 +104,6 @@ float xsens_gps_arm_x = 0;
float xsens_gps_arm_y = 0;
float xsens_gps_arm_z = 0;
static uint8_t xsens_id;
static uint8_t xsens_status;
static uint8_t xsens_len;
static uint8_t xsens_msg_idx;
static uint8_t ck;
uint8_t send_ck;
volatile int xsens_configured = 0;
struct Xsens xsens;
@@ -162,16 +121,6 @@ void xsens_init(void)
xsens_output_settings = XSENS_OUTPUT_SETTINGS;
}
void xsens_event(void)
{
struct link_device *dev = &((XSENS_LINK).device);
if (dev->char_available(dev->periph)) {
while (dev->char_available(dev->periph) && !xsens_msg_received) {
parse_xsens_buffer(dev->get_byte(dev->periph));
}
}
}
void xsens_periodic(void)
{
if (xsens_configured > 0) {
@@ -422,57 +371,3 @@ void parse_xsens_msg(void)
}
}
void parse_xsens_buffer(uint8_t c)
{
ck += c;
switch (xsens_status) {
case UNINIT:
if (c != XSENS_START) {
goto error;
}
xsens_status++;
ck = 0;
break;
case GOT_START:
if (c != XSENS_BID) {
goto error;
}
xsens_status++;
break;
case GOT_BID:
xsens_id = c;
xsens_status++;
break;
case GOT_MID:
xsens_len = c;
if (xsens_len > XSENS_MAX_PAYLOAD) {
goto error;
}
xsens_msg_idx = 0;
xsens_status++;
break;
case GOT_LEN:
xsens_msg_buf[xsens_msg_idx] = c;
xsens_msg_idx++;
if (xsens_msg_idx >= xsens_len) {
xsens_status++;
}
break;
case GOT_DATA:
if (ck != 0) {
goto error;
}
xsens_msg_received = TRUE;
goto restart;
break;
default:
break;
}
return;
error:
restart:
xsens_status = UNINIT;
return;
}
-1
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@@ -77,7 +77,6 @@ extern struct Xsens xsens;
extern void xsens_init(void);
extern void xsens_periodic(void);
extern void xsens_event(void);
extern void parse_xsens_msg(void);
#endif /* XSENS_H */
+285
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@@ -0,0 +1,285 @@
/*
* Copyright (C) 2013 Christophe De Wagter
*
* This file is part of paparazzi.
*
* paparazzi is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* paparazzi is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with paparazzi; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
/**
* @file modules/ins/xsens700.c
* Parser for the Xsens700 protocol.
*/
#include "xsens700.h"
#include "xsens_common.h"
#include "generated/airframe.h"
#if USE_GPS_XSENS
#include "math/pprz_geodetic_wgs84.h"
#endif
// FIXME Debugging Only
#include "mcu_periph/uart.h"
#include "pprzlink/messages.h"
#include "subsystems/datalink/downlink.h"
uint8_t xsens_errorcode;
uint32_t xsens_msg_statusword;
uint16_t xsens_time_stamp;
uint16_t xsens_output_mode;
uint32_t xsens_output_settings;
float xsens_gps_arm_x = 0;
float xsens_gps_arm_y = 0;
float xsens_gps_arm_z = 0;
struct Xsens xsens700;
volatile int xsens_configured = 0;
void xsens700_init(void)
{
xsens_status = UNINIT;
xsens_configured = 30;
xsens_msg_statusword = 0;
xsens_time_stamp = 0;
}
static void xsens_ask_message_rate(uint8_t c1, uint8_t c2, uint8_t freq)
{
uint8_t foo = 0;
XsensSend1ByAddr(&c1);
XsensSend1ByAddr(&c2);
XsensSend1ByAddr(&foo);
XsensSend1ByAddr(&freq);
}
void xsens700_periodic(void)
{
if (xsens_configured > 0) {
switch (xsens_configured) {
case 25:
/* send mode and settings to MT */
XSENS_GoToConfig();
//XSENS_SetOutputMode(xsens_output_mode);
//XSENS_SetOutputSettings(xsens_output_settings);
break;
case 18:
// Give pulses on SyncOut
//XSENS_SetSyncOutSettings(0,0x0002);
break;
case 17:
XsensHeader(XSENS_SetOutputConfiguration_ID, 44);
xsens_ask_message_rate(0x10, 0x10, 4); // UTC
xsens_ask_message_rate(0x20, 0x30, 100); // Attitude Euler
xsens_ask_message_rate(0x40, 0x10, 100); // Delta-V
xsens_ask_message_rate(0x80, 0x20, 100); // Rate of turn
xsens_ask_message_rate(0xE0, 0x20, 50); // Status
xsens_ask_message_rate(0x30, 0x10, 50); // Baro Pressure
xsens_ask_message_rate(0x88, 0x40, 1); // NavSol
xsens_ask_message_rate(0x88, 0xA0, 1); // SV Info
xsens_ask_message_rate(0x50, 0x20, 50); // GPS Altitude Ellipsiod
xsens_ask_message_rate(0x50, 0x40, 50); // GPS Position
xsens_ask_message_rate(0xD0, 0x10, 50); // GPS Speed
XsensTrailer();
break;
case 2:
//XSENS_ReqLeverArmGps();
break;
case 6:
//XSENS_ReqMagneticDeclination();
break;
case 13:
//#ifdef AHRS_H_X
//#pragma message "Sending XSens Magnetic Declination."
//xsens_declination = atan2(AHRS_H_Y, AHRS_H_X);
//XSENS_SetMagneticDeclination(xsens_declination);
//#endif
break;
case 12:
#ifdef GPS_IMU_LEVER_ARM_X
#pragma message "Sending XSens GPS Arm."
XSENS_SetLeverArmGps(GPS_IMU_LEVER_ARM_X, GPS_IMU_LEVER_ARM_Y, GPS_IMU_LEVER_ARM_Z);
#endif
break;
case 10: {
uint8_t baud = 1;
XSENS_SetBaudrate(baud);
}
break;
case 1:
XSENS_GoToMeasurment();
break;
default:
break;
}
xsens_configured--;
return;
}
}
void parse_xsens700_msg(void)
{
uint8_t offset = 0;
if (xsens_id == XSENS_ReqLeverArmGpsAck_ID) {
xsens_gps_arm_x = XSENS_ReqLeverArmGpsAck_x(xsens_msg_buf);
xsens_gps_arm_y = XSENS_ReqLeverArmGpsAck_y(xsens_msg_buf);
xsens_gps_arm_z = XSENS_ReqLeverArmGpsAck_z(xsens_msg_buf);
} else if (xsens_id == XSENS_Error_ID) {
xsens_errorcode = XSENS_Error_errorcode(xsens_msg_buf);
} else if (xsens_id == XSENS_MTData2_ID) {
for (offset = 0; offset < xsens_len;) {
uint8_t code1 = xsens_msg_buf[offset];
uint8_t code2 = xsens_msg_buf[offset + 1];
int subpacklen = (int)xsens_msg_buf[offset + 2];
offset += 3;
if (code1 == 0x10) {
if (code2 == 0x10) {
// UTC
} else if (code2 == 0x20) {
// Packet Counter
}
if (code2 == 0x30) {
// ITOW
}
} else if (code1 == 0x20) {
if (code2 == 0x30) {
// Attitude Euler
xsens700.euler.phi = XSENS_DATA_Euler_roll(xsens_msg_buf, offset) * M_PI / 180;
xsens700.euler.theta = XSENS_DATA_Euler_pitch(xsens_msg_buf, offset) * M_PI / 180;
xsens700.euler.psi = XSENS_DATA_Euler_yaw(xsens_msg_buf, offset) * M_PI / 180;
xsens700.new_attitude = TRUE;
}
} else if (code1 == 0x40) {
if (code2 == 0x10) {
// Delta-V
xsens700.accel.x = XSENS_DATA_Acceleration_x(xsens_msg_buf, offset) * 100.0f;
xsens700.accel.y = XSENS_DATA_Acceleration_y(xsens_msg_buf, offset) * 100.0f;
xsens700.accel.z = XSENS_DATA_Acceleration_z(xsens_msg_buf, offset) * 100.0f;
}
} else if (code1 == 0x80) {
if (code2 == 0x20) {
// Rate Of Turn
xsens700.gyro.p = XSENS_DATA_RateOfTurn_x(xsens_msg_buf, offset) * M_PI / 180;
xsens700.gyro.q = XSENS_DATA_RateOfTurn_y(xsens_msg_buf, offset) * M_PI / 180;
xsens700.gyro.r = XSENS_DATA_RateOfTurn_z(xsens_msg_buf, offset) * M_PI / 180;
}
} else if (code1 == 0x30) {
if (code2 == 0x10) {
// Baro Pressure
}
} else if (code1 == 0xE0) {
if (code2 == 0x20) {
// Status Word
xsens_msg_statusword = XSENS_DATA_StatusWord_status(xsens_msg_buf, offset);
//xsens700.gps.tow = xsens_msg_statusword;
#if USE_GPS_XSENS
if (bit_is_set(xsens_msg_statusword, 2) && bit_is_set(xsens_msg_statusword, 1)) {
if (bit_is_set(xsens_msg_statusword, 23) && bit_is_set(xsens_msg_statusword, 24)) {
xsens700.gps.fix = GPS_FIX_3D;
} else {
xsens700.gps.fix = GPS_FIX_2D;
}
} else { xsens700.gps.fix = GPS_FIX_NONE; }
#endif
}
} else if (code1 == 0x88) {
if (code2 == 0x40) {
xsens700.gps.week = XSENS_DATA_GpsSol_week(xsens_msg_buf, offset);
xsens700.gps.num_sv = XSENS_DATA_GpsSol_numSv(xsens_msg_buf, offset);
xsens700.gps.pacc = XSENS_DATA_GpsSol_pAcc(xsens_msg_buf, offset);
xsens700.gps.sacc = XSENS_DATA_GpsSol_sAcc(xsens_msg_buf, offset);
xsens700.gps.pdop = XSENS_DATA_GpsSol_pDop(xsens_msg_buf, offset);
} else if (code2 == 0xA0) {
// SVINFO
xsens700.gps.tow = XSENS_XDI_GpsSvInfo_iTOW(xsens_msg_buf + offset);
#if USE_GPS_XSENS
xsens700.gps.nb_channels = XSENS_XDI_GpsSvInfo_nch(xsens_msg_buf + offset);
xsens700.gps.last_3dfix_ticks = sys_time.nb_sec_rem;
xsens700.gps.last_3dfix_time = sys_time.nb_sec;
uint8_t i;
// Do not write outside buffer
for (i = 0; i < Min(xsens700.gps.nb_channels, GPS_NB_CHANNELS); i++) {
uint8_t ch = XSENS_XDI_GpsSvInfo_chn(xsens_msg_buf + offset, i);
if (ch > xsens700.gps.nb_channels) { continue; }
xsens700.gps.svinfos[ch].svid = XSENS_XDI_GpsSvInfo_svid(xsens_msg_buf + offset, i);
xsens700.gps.svinfos[ch].flags = XSENS_XDI_GpsSvInfo_bitmask(xsens_msg_buf + offset, i);
xsens700.gps.svinfos[ch].qi = XSENS_XDI_GpsSvInfo_qi(xsens_msg_buf + offset, i);
xsens700.gps.svinfos[ch].cno = XSENS_XDI_GpsSvInfo_cnr(xsens_msg_buf + offset, i);
}
#endif
}
} else if (code1 == 0x50) {
if (code2 == 0x10) {
//xsens700.gps.hmsl = XSENS_DATA_Altitude_h(xsens_msg_buf,offset)* 1000.0f;
} else if (code2 == 0x20) {
// Altitude Elipsoid
xsens700.gps.lla_pos.alt = XSENS_DATA_Altitude_h(xsens_msg_buf, offset) * 1000.0f;
// Compute geoid (MSL) height
float geoid_h = wgs84_ellipsoid_to_geoid(xsens700.lla_f.lat, xsens700.lla_f.lon);
xsens700.gps.hmsl = xsens700.gps.lla_pos.alt - (geoid_h * 1000.0f);
SetBit(xsens700.gps.valid_fields, GPS_VALID_HMSL_BIT);
//xsens700.gps.tow = geoid_h * 1000.0f; //xsens700.gps.utm_pos.alt;
} else if (code2 == 0x40) {
// LatLong
#ifdef GPS_LED
LED_TOGGLE(GPS_LED);
#endif
xsens700.gps.last_3dfix_ticks = sys_time.nb_sec_rem;
xsens700.gps.last_3dfix_time = sys_time.nb_sec;
xsens700.gps.week = 0; // FIXME
xsens700.lla_f.lat = RadOfDeg(XSENS_DATA_LatLon_lat(xsens_msg_buf, offset));
xsens700.lla_f.lon = RadOfDeg(XSENS_DATA_LatLon_lon(xsens_msg_buf, offset));
}
} else if (code1 == 0xD0) {
if (code2 == 0x10) {
// Velocity
xsens700.vel.x = XSENS_DATA_VelocityXYZ_x(xsens_msg_buf, offset);
xsens700.vel.y = XSENS_DATA_VelocityXYZ_y(xsens_msg_buf, offset);
xsens700.vel.z = XSENS_DATA_VelocityXYZ_z(xsens_msg_buf, offset);
xsens700.gps.ned_vel.x = xsens700.vel.x;
xsens700.gps.ned_vel.y = xsens700.vel.y;
xsens700.gps.ned_vel.z = xsens700.vel.x;
SetBit(xsens700.gps.valid_fields, GPS_VALID_VEL_NED_BIT);
}
}
if (subpacklen < 0) {
subpacklen = 0;
}
offset += subpacklen;
}
}
}
+82
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@@ -0,0 +1,82 @@
/*
* Copyright (C) 2010 ENAC
*
* This file is part of paparazzi.
*
* paparazzi is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* paparazzi is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with paparazzi; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
/** @file modules/ins/xsens_700.h
* Parser for the Xsens protocol.
*/
#ifndef XSENS700_H
#define XSENS700_H
#include "std.h"
#include "math/pprz_algebra_float.h"
#include "math/pprz_geodetic_float.h"
#include "math/pprz_geodetic_int.h"
#if USE_GPS_XSENS
#include "subsystems/gps.h"
#endif
struct XsensTime {
int8_t hour;
int8_t min;
int8_t sec;
int32_t nanosec;
int16_t year;
int8_t month;
int8_t day;
};
struct Xsens {
struct XsensTime time;
uint16_t time_stamp;
struct FloatRates gyro;
struct FloatVect3 accel;
struct FloatVect3 mag;
struct LlaCoor_f lla_f;
struct FloatVect3 vel; ///< NED velocity in m/s
struct FloatQuat quat;
struct FloatEulers euler;
volatile bool_t msg_received;
volatile bool_t new_attitude;
bool_t gyro_available;
bool_t accel_available;
bool_t mag_available;
#if USE_GPS_XSENS
struct GpsState gps;
bool_t gps_available;
#endif
};
extern struct Xsens xsens700;
extern void xsens700_init(void);
extern void xsens700_periodic(void);
extern void parse_xsens700_msg(void);
#endif /* XSENS700_H */
+105
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@@ -0,0 +1,105 @@
/*
* Copyright (C) 2003 Pascal Brisset, Antoine Drouin
*
* This file is part of paparazzi.
*
* paparazzi is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* paparazzi is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with paparazzi; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/** @file modules/ins/xsens_common.c
* Parser for the Xsens protocol.
*/
#include "xsens_common.h"
#include "pprzlink/pprzlink_device.h"
#include "mcu_periph/uart.h"
volatile uint8_t xsens_msg_received;
uint8_t xsens_id;
uint8_t xsens_status;
uint8_t xsens_len;
uint8_t xsens_msg_idx;
uint8_t ck;
uint8_t send_ck;
uint8_t xsens_msg_buf[XSENS_MAX_PAYLOAD];
void parse_xsens_buffer(uint8_t c);
void xsens_event(void)
{
struct link_device *dev = &((XSENS_LINK).device);
if (dev->char_available(dev->periph)) {
while (dev->char_available(dev->periph) && !xsens_msg_received) {
parse_xsens_buffer(dev->get_byte(dev->periph));
}
}
}
void parse_xsens_buffer(uint8_t c)
{
ck += c;
switch (xsens_status) {
case UNINIT:
if (c != XSENS_START) {
goto error;
}
xsens_status++;
ck = 0;
break;
case GOT_START:
if (c != XSENS_BID) {
goto error;
}
xsens_status++;
break;
case GOT_BID:
xsens_id = c;
xsens_status++;
break;
case GOT_MID:
xsens_len = c;
if (xsens_len > XSENS_MAX_PAYLOAD) {
goto error;
}
xsens_msg_idx = 0;
xsens_status++;
break;
case GOT_LEN:
xsens_msg_buf[xsens_msg_idx] = c;
xsens_msg_idx++;
if (xsens_msg_idx >= xsens_len) {
xsens_status++;
}
break;
case GOT_DATA:
if (ck != 0) {
goto error;
}
xsens_msg_received = TRUE;
goto restart;
break;
default:
break;
}
return;
error:
restart:
xsens_status = UNINIT;
return;
}
+75
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@@ -0,0 +1,75 @@
/*
* Copyright (C) 2003 Pascal Brisset, Antoine Drouin
*
* This file is part of paparazzi.
*
* paparazzi is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* paparazzi is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with paparazzi; see the file COPYING. If not, write to
* the Free Software Foundation, 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/** @file modules/ins/xsens_common.h
* Parser for the Xsens protocol.
*/
#ifndef XSENS_COMMON_H
#define XSENS_COMMON_H
#include "std.h"
/** Includes macros generated from xsens_MTi-G.xml */
#include "xsens_protocol.h"
extern uint8_t xsens_id;
extern uint8_t xsens_status;
extern uint8_t xsens_len;
extern uint8_t xsens_msg_idx;
extern uint8_t ck;
extern uint8_t send_ck;
#define XsensLinkDevice (&((XSENS_LINK).device))
#define XsensInitCheksum() { send_ck = 0; }
#define XsensUpdateChecksum(c) { send_ck += c; }
#define XsensUartSend1(c) XsensLinkDevice->put_byte(XsensLinkDevice->periph, c)
#define XsensSend1(c) { uint8_t i8=c; XsensUartSend1(i8); XsensUpdateChecksum(i8); }
#define XsensSend1ByAddr(x) { XsensSend1(*x); }
#define XsensSend2ByAddr(x) { XsensSend1(*(x+1)); XsensSend1(*x); }
#define XsensSend4ByAddr(x) { XsensSend1(*(x+3)); XsensSend1(*(x+2)); XsensSend1(*(x+1)); XsensSend1(*x); }
#define XsensHeader(msg_id, len) { \
XsensUartSend1(XSENS_START); \
XsensInitCheksum(); \
XsensSend1(XSENS_BID); \
XsensSend1(msg_id); \
XsensSend1(len); \
}
#define XsensTrailer() { uint8_t i8=0x100-send_ck; XsensUartSend1(i8); }
#define XSENS_MAX_PAYLOAD 254
extern uint8_t xsens_msg_buf[XSENS_MAX_PAYLOAD];
#define UNINIT 0
#define GOT_START 1
#define GOT_BID 2
#define GOT_MID 3
#define GOT_LEN 4
#define GOT_DATA 5
#define GOT_CHECKSUM 6
extern void xsens_event(void);
#endif /* XSENS_COMMON_H */