Add LPC1768
Dependencies: mbed-rtos mbed Xbus
Fork of MTi-1_example by
main.cpp@41:504b6821a96f, 2015-05-21 (annotated)
- Committer:
- Alex Young
- Date:
- Thu May 21 14:41:44 2015 +0200
- Revision:
- 41:504b6821a96f
- Parent:
- 40:b77a8c10c76d
- Child:
- 42:e70756d2d8bc
Add wait in main loop.
This seems to help with response to pc commands.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Alex Young |
36:21198d933917 | 1 | /*! |
Alex Young |
36:21198d933917 | 2 | * \file |
Alex Young |
36:21198d933917 | 3 | * \copyright |
Alex Young |
36:21198d933917 | 4 | * Copyright (C) Xsens Technologies B.V., 2015. All rights reserved. |
Alex Young |
36:21198d933917 | 5 | * |
Alex Young |
36:21198d933917 | 6 | * This source code is intended for use only by Xsens Technologies BV and |
Alex Young |
36:21198d933917 | 7 | * those that have explicit written permission to use it from |
Alex Young |
36:21198d933917 | 8 | * Xsens Technologies BV. |
Alex Young |
36:21198d933917 | 9 | * |
Alex Young |
36:21198d933917 | 10 | * THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY |
Alex Young |
36:21198d933917 | 11 | * KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE |
Alex Young |
36:21198d933917 | 12 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A |
Alex Young |
36:21198d933917 | 13 | * PARTICULAR PURPOSE. |
Alex Young |
36:21198d933917 | 14 | */ |
Alex Young |
36:21198d933917 | 15 | |
Alex Young |
4:98f063b2e6da | 16 | #include "mbed.h" |
Alex Young |
25:01356fb59467 | 17 | #include "rtos.h" |
Alex Young |
4:98f063b2e6da | 18 | #include "xbusparser.h" |
Alex Young |
11:8593ba137917 | 19 | #include "xbusmessage.h" |
Alex Young |
40:b77a8c10c76d | 20 | #include "xsdeviceid.h" |
Alex Young |
4:98f063b2e6da | 21 | |
Alex Young |
25:01356fb59467 | 22 | #define MEMORY_POOL_SIZE (4) |
Alex Young |
26:665d3624f9ab | 23 | #define RESPONSE_QUEUE_SIZE (1) |
Alex Young |
25:01356fb59467 | 24 | #define MAX_XBUS_DATA_SIZE (128) |
Alex Young |
25:01356fb59467 | 25 | |
Alex Young |
4:98f063b2e6da | 26 | static Serial pc(PA_2, PA_3); |
Alex Young |
4:98f063b2e6da | 27 | static Serial mt(PB_9, PB_8); |
Alex Young |
35:7e519b88c610 | 28 | /*! |
Alex Young |
35:7e519b88c610 | 29 | * \brief MT reset line. |
Alex Young |
35:7e519b88c610 | 30 | * |
Alex Young |
35:7e519b88c610 | 31 | * MT is held in reset on startup. |
Alex Young |
35:7e519b88c610 | 32 | */ |
Alex Young |
35:7e519b88c610 | 33 | static DigitalOut mtReset(PA_10, 0); |
Alex Young |
4:98f063b2e6da | 34 | static XbusParser* xbusParser; |
Alex Young |
25:01356fb59467 | 35 | |
Alex Young |
25:01356fb59467 | 36 | MemoryPool<XbusMessage, MEMORY_POOL_SIZE> g_messagePool; |
Alex Young |
25:01356fb59467 | 37 | MemoryPool<uint8_t[MAX_XBUS_DATA_SIZE], MEMORY_POOL_SIZE> g_messageDataPool; |
Alex Young |
26:665d3624f9ab | 38 | Queue<XbusMessage, RESPONSE_QUEUE_SIZE> g_responseQueue; |
Alex Young |
4:98f063b2e6da | 39 | |
Alex Young |
25:01356fb59467 | 40 | static void* allocateMessageData(size_t bufSize) |
Alex Young |
4:98f063b2e6da | 41 | { |
Alex Young |
25:01356fb59467 | 42 | return bufSize < MAX_XBUS_DATA_SIZE ? g_messageDataPool.alloc() : NULL; |
Alex Young |
25:01356fb59467 | 43 | } |
Alex Young |
25:01356fb59467 | 44 | |
Alex Young |
25:01356fb59467 | 45 | static void deallocateMessageData(void const* buffer) |
Alex Young |
25:01356fb59467 | 46 | { |
Alex Young |
25:01356fb59467 | 47 | g_messageDataPool.free((uint8_t(*)[MAX_XBUS_DATA_SIZE])buffer); |
Alex Young |
4:98f063b2e6da | 48 | } |
Alex Young |
4:98f063b2e6da | 49 | |
Alex Young |
4:98f063b2e6da | 50 | static void mtLowLevelHandler(void) |
Alex Young |
4:98f063b2e6da | 51 | { |
Alex Young |
4:98f063b2e6da | 52 | while (mt.readable()) |
Alex Young |
4:98f063b2e6da | 53 | { |
Alex Young |
4:98f063b2e6da | 54 | XbusParser_parseByte(xbusParser, mt.getc()); |
Alex Young |
4:98f063b2e6da | 55 | } |
Alex Young |
4:98f063b2e6da | 56 | } |
Alex Young |
4:98f063b2e6da | 57 | |
Alex Young |
34:3d7a6519a256 | 58 | static void sendMessage(XbusMessage const* m) |
Alex Young |
11:8593ba137917 | 59 | { |
Alex Young |
26:665d3624f9ab | 60 | uint8_t buf[64]; |
Alex Young |
26:665d3624f9ab | 61 | size_t rawLength = XbusMessage_format(buf, m); |
Alex Young |
11:8593ba137917 | 62 | for (size_t i = 0; i < rawLength; ++i) |
Alex Young |
11:8593ba137917 | 63 | { |
Alex Young |
11:8593ba137917 | 64 | mt.putc(buf[i]); |
Alex Young |
11:8593ba137917 | 65 | } |
Alex Young |
34:3d7a6519a256 | 66 | } |
Alex Young |
34:3d7a6519a256 | 67 | |
Alex Young |
34:3d7a6519a256 | 68 | static XbusMessage const* doTransaction(XbusMessage const* m) |
Alex Young |
34:3d7a6519a256 | 69 | { |
Alex Young |
34:3d7a6519a256 | 70 | sendMessage(m); |
Alex Young |
26:665d3624f9ab | 71 | |
Alex Young |
26:665d3624f9ab | 72 | osEvent ev = g_responseQueue.get(500); |
Alex Young |
26:665d3624f9ab | 73 | return ev.status == osEventMessage ? (XbusMessage*)ev.value.p : NULL; |
Alex Young |
26:665d3624f9ab | 74 | } |
Alex Young |
26:665d3624f9ab | 75 | |
Alex Young |
31:ce1ea9ae861e | 76 | /*! |
Alex Young |
31:ce1ea9ae861e | 77 | * \brief RAII object to manage message memory deallocation. |
Alex Young |
31:ce1ea9ae861e | 78 | * |
Alex Young |
31:ce1ea9ae861e | 79 | * Will automatically free the memory used by a XbusMessage when going out |
Alex Young |
31:ce1ea9ae861e | 80 | * of scope. |
Alex Young |
31:ce1ea9ae861e | 81 | */ |
Alex Young |
31:ce1ea9ae861e | 82 | class XbusMessageMemoryManager |
Alex Young |
26:665d3624f9ab | 83 | { |
Alex Young |
31:ce1ea9ae861e | 84 | public: |
Alex Young |
31:ce1ea9ae861e | 85 | XbusMessageMemoryManager(XbusMessage const* message) |
Alex Young |
31:ce1ea9ae861e | 86 | : m_message(message) |
Alex Young |
31:ce1ea9ae861e | 87 | { |
Alex Young |
31:ce1ea9ae861e | 88 | } |
Alex Young |
31:ce1ea9ae861e | 89 | |
Alex Young |
31:ce1ea9ae861e | 90 | ~XbusMessageMemoryManager() |
Alex Young |
31:ce1ea9ae861e | 91 | { |
Alex Young |
31:ce1ea9ae861e | 92 | if (m_message) |
Alex Young |
31:ce1ea9ae861e | 93 | { |
Alex Young |
31:ce1ea9ae861e | 94 | if (m_message->data) |
Alex Young |
31:ce1ea9ae861e | 95 | deallocateMessageData(m_message->data); |
Alex Young |
31:ce1ea9ae861e | 96 | g_messagePool.free(const_cast<XbusMessage*>(m_message)); |
Alex Young |
31:ce1ea9ae861e | 97 | } |
Alex Young |
31:ce1ea9ae861e | 98 | } |
Alex Young |
31:ce1ea9ae861e | 99 | |
Alex Young |
31:ce1ea9ae861e | 100 | private: |
Alex Young |
31:ce1ea9ae861e | 101 | XbusMessage const* m_message; |
Alex Young |
31:ce1ea9ae861e | 102 | }; |
Alex Young |
26:665d3624f9ab | 103 | |
Alex Young |
29:d9310e7b58b5 | 104 | static void dumpResponse(XbusMessage const* response) |
Alex Young |
29:d9310e7b58b5 | 105 | { |
Alex Young |
29:d9310e7b58b5 | 106 | switch (response->mid) |
Alex Young |
29:d9310e7b58b5 | 107 | { |
Alex Young |
29:d9310e7b58b5 | 108 | case XMID_GotoConfigAck: |
Alex Young |
39:9014c5236864 | 109 | pc.printf("Device went to config mode.\n"); |
Alex Young |
29:d9310e7b58b5 | 110 | break; |
Alex Young |
29:d9310e7b58b5 | 111 | |
Alex Young |
29:d9310e7b58b5 | 112 | case XMID_Error: |
Alex Young |
29:d9310e7b58b5 | 113 | pc.printf("Device error!"); |
Alex Young |
29:d9310e7b58b5 | 114 | break; |
Alex Young |
29:d9310e7b58b5 | 115 | |
Alex Young |
29:d9310e7b58b5 | 116 | default: |
Alex Young |
29:d9310e7b58b5 | 117 | pc.printf("Received response MID=%X, length=%d\n", response->mid, response->length); |
Alex Young |
29:d9310e7b58b5 | 118 | break; |
Alex Young |
29:d9310e7b58b5 | 119 | } |
Alex Young |
29:d9310e7b58b5 | 120 | } |
Alex Young |
29:d9310e7b58b5 | 121 | |
Alex Young |
26:665d3624f9ab | 122 | static void sendCommand(XsMessageId cmdId) |
Alex Young |
26:665d3624f9ab | 123 | { |
Alex Young |
26:665d3624f9ab | 124 | XbusMessage m = {cmdId}; |
Alex Young |
26:665d3624f9ab | 125 | XbusMessage const* response = doTransaction(&m); |
Alex Young |
31:ce1ea9ae861e | 126 | XbusMessageMemoryManager janitor(response); |
Alex Young |
26:665d3624f9ab | 127 | |
Alex Young |
26:665d3624f9ab | 128 | if (response) |
Alex Young |
26:665d3624f9ab | 129 | { |
Alex Young |
29:d9310e7b58b5 | 130 | dumpResponse(response); |
Alex Young |
26:665d3624f9ab | 131 | } |
Alex Young |
26:665d3624f9ab | 132 | else |
Alex Young |
26:665d3624f9ab | 133 | { |
Alex Young |
26:665d3624f9ab | 134 | pc.printf("Timeout waiting for response.\n"); |
Alex Young |
26:665d3624f9ab | 135 | } |
Alex Young |
11:8593ba137917 | 136 | } |
Alex Young |
11:8593ba137917 | 137 | |
Alex Young |
11:8593ba137917 | 138 | static void handlePcCommand(char cmd) |
Alex Young |
11:8593ba137917 | 139 | { |
Alex Young |
11:8593ba137917 | 140 | switch (cmd) |
Alex Young |
11:8593ba137917 | 141 | { |
Alex Young |
11:8593ba137917 | 142 | case 'c': |
Alex Young |
11:8593ba137917 | 143 | sendCommand(XMID_GotoConfig); |
Alex Young |
11:8593ba137917 | 144 | break; |
Alex Young |
11:8593ba137917 | 145 | |
Alex Young |
11:8593ba137917 | 146 | case 'm': |
Alex Young |
11:8593ba137917 | 147 | sendCommand(XMID_GotoMeasurement); |
Alex Young |
11:8593ba137917 | 148 | break; |
Alex Young |
11:8593ba137917 | 149 | } |
Alex Young |
11:8593ba137917 | 150 | } |
Alex Young |
11:8593ba137917 | 151 | |
Alex Young |
24:2cc49dc854e3 | 152 | static void handleDataMessage(struct XbusMessage const* message) |
Alex Young |
24:2cc49dc854e3 | 153 | { |
Alex Young |
24:2cc49dc854e3 | 154 | pc.printf("MTData2:"); |
Alex Young |
24:2cc49dc854e3 | 155 | uint16_t counter; |
Alex Young |
24:2cc49dc854e3 | 156 | if (XbusMessage_getDataItem(&counter, XDI_PacketCounter, message)) |
Alex Young |
24:2cc49dc854e3 | 157 | { |
Alex Young |
24:2cc49dc854e3 | 158 | pc.printf(" Packet counter: %5d", counter); |
Alex Young |
24:2cc49dc854e3 | 159 | } |
Alex Young |
24:2cc49dc854e3 | 160 | float ori[4]; |
Alex Young |
24:2cc49dc854e3 | 161 | if (XbusMessage_getDataItem(ori, XDI_Quaternion, message)) |
Alex Young |
24:2cc49dc854e3 | 162 | { |
Alex Young |
24:2cc49dc854e3 | 163 | pc.printf(" Orientation: (% .3f, % .3f, % .3f, % .3f)", ori[0], ori[1], |
Alex Young |
24:2cc49dc854e3 | 164 | ori[2], ori[3]); |
Alex Young |
24:2cc49dc854e3 | 165 | } |
Alex Young |
24:2cc49dc854e3 | 166 | uint32_t status; |
Alex Young |
24:2cc49dc854e3 | 167 | if (XbusMessage_getDataItem(&status, XDI_StatusWord, message)) |
Alex Young |
24:2cc49dc854e3 | 168 | { |
Alex Young |
24:2cc49dc854e3 | 169 | pc.printf(" Status:%X", status); |
Alex Young |
24:2cc49dc854e3 | 170 | } |
Alex Young |
24:2cc49dc854e3 | 171 | pc.printf("\n"); |
Alex Young |
26:665d3624f9ab | 172 | deallocateMessageData(message->data); |
Alex Young |
24:2cc49dc854e3 | 173 | } |
Alex Young |
24:2cc49dc854e3 | 174 | |
Alex Young |
24:2cc49dc854e3 | 175 | static void mtMessageHandler(struct XbusMessage const* message) |
Alex Young |
4:98f063b2e6da | 176 | { |
Alex Young |
15:558d279addd9 | 177 | if (message->mid == XMID_MtData2) |
Alex Young |
7:c913a7cd5231 | 178 | { |
Alex Young |
24:2cc49dc854e3 | 179 | handleDataMessage(message); |
Alex Young |
7:c913a7cd5231 | 180 | } |
Alex Young |
7:c913a7cd5231 | 181 | else |
Alex Young |
7:c913a7cd5231 | 182 | { |
Alex Young |
26:665d3624f9ab | 183 | XbusMessage* m = g_messagePool.alloc(); |
Alex Young |
26:665d3624f9ab | 184 | memcpy(m, message, sizeof(XbusMessage)); |
Alex Young |
26:665d3624f9ab | 185 | g_responseQueue.put(m); |
Alex Young |
25:01356fb59467 | 186 | } |
Alex Young |
4:98f063b2e6da | 187 | } |
Alex Young |
4:98f063b2e6da | 188 | |
Alex Young |
4:98f063b2e6da | 189 | static void configureSerialPorts(void) |
Alex Young |
4:98f063b2e6da | 190 | { |
Alex Young |
4:98f063b2e6da | 191 | pc.baud(921600); |
Alex Young |
4:98f063b2e6da | 192 | pc.format(8, Serial::None, 2); |
Alex Young |
4:98f063b2e6da | 193 | |
Alex Young |
37:3e87bf647c68 | 194 | mt.baud(115200); |
Alex Young |
4:98f063b2e6da | 195 | mt.format(8, Serial::None, 2); |
Alex Young |
4:98f063b2e6da | 196 | mt.attach(mtLowLevelHandler, Serial::RxIrq); |
Alex Young |
4:98f063b2e6da | 197 | } |
Alex Young |
4:98f063b2e6da | 198 | |
Alex Young |
29:d9310e7b58b5 | 199 | static uint32_t readDeviceId(void) |
Alex Young |
29:d9310e7b58b5 | 200 | { |
Alex Young |
29:d9310e7b58b5 | 201 | XbusMessage reqDid = {XMID_ReqDid}; |
Alex Young |
29:d9310e7b58b5 | 202 | XbusMessage const* didRsp = doTransaction(&reqDid); |
Alex Young |
31:ce1ea9ae861e | 203 | XbusMessageMemoryManager janitor(didRsp); |
Alex Young |
29:d9310e7b58b5 | 204 | uint32_t deviceId = 0; |
Alex Young |
29:d9310e7b58b5 | 205 | if (didRsp) |
Alex Young |
29:d9310e7b58b5 | 206 | { |
Alex Young |
29:d9310e7b58b5 | 207 | if (didRsp->mid == XMID_DeviceId) |
Alex Young |
29:d9310e7b58b5 | 208 | { |
Alex Young |
29:d9310e7b58b5 | 209 | deviceId = *(uint32_t*)didRsp->data; |
Alex Young |
29:d9310e7b58b5 | 210 | } |
Alex Young |
29:d9310e7b58b5 | 211 | } |
Alex Young |
29:d9310e7b58b5 | 212 | return deviceId; |
Alex Young |
29:d9310e7b58b5 | 213 | } |
Alex Young |
29:d9310e7b58b5 | 214 | |
Alex Young |
32:fafe0f42d82b | 215 | static bool setOutputConfiguration(OutputConfiguration const* conf, uint8_t elements) |
Alex Young |
29:d9310e7b58b5 | 216 | { |
Alex Young |
32:fafe0f42d82b | 217 | XbusMessage outputConfMsg = {XMID_SetOutputConfig, elements, (void*)conf}; |
Alex Young |
32:fafe0f42d82b | 218 | XbusMessage const* outputConfRsp = doTransaction(&outputConfMsg); |
Alex Young |
32:fafe0f42d82b | 219 | XbusMessageMemoryManager janitor(outputConfRsp); |
Alex Young |
32:fafe0f42d82b | 220 | if (outputConfRsp) |
Alex Young |
29:d9310e7b58b5 | 221 | { |
Alex Young |
32:fafe0f42d82b | 222 | if (outputConfRsp->mid == XMID_OutputConfig) |
Alex Young |
29:d9310e7b58b5 | 223 | { |
Alex Young |
32:fafe0f42d82b | 224 | pc.printf("Output configuration set to:\n"); |
Alex Young |
32:fafe0f42d82b | 225 | OutputConfiguration* conf = (OutputConfiguration*)outputConfRsp->data; |
Alex Young |
32:fafe0f42d82b | 226 | for (int i = 0; i < outputConfRsp->length; ++i) |
Alex Young |
32:fafe0f42d82b | 227 | { |
Alex Young |
32:fafe0f42d82b | 228 | pc.printf("\t%s: %d Hz\n", XbusMessage_dataDescription(conf->dtype), conf->freq); |
Alex Young |
32:fafe0f42d82b | 229 | ++conf; |
Alex Young |
32:fafe0f42d82b | 230 | } |
Alex Young |
32:fafe0f42d82b | 231 | return true; |
Alex Young |
29:d9310e7b58b5 | 232 | } |
Alex Young |
29:d9310e7b58b5 | 233 | else |
Alex Young |
29:d9310e7b58b5 | 234 | { |
Alex Young |
32:fafe0f42d82b | 235 | dumpResponse(outputConfRsp); |
Alex Young |
29:d9310e7b58b5 | 236 | } |
Alex Young |
32:fafe0f42d82b | 237 | } |
Alex Young |
32:fafe0f42d82b | 238 | else |
Alex Young |
32:fafe0f42d82b | 239 | { |
Alex Young |
32:fafe0f42d82b | 240 | pc.printf("Failed to set output configuration.\n"); |
Alex Young |
32:fafe0f42d82b | 241 | } |
Alex Young |
32:fafe0f42d82b | 242 | return false; |
Alex Young |
32:fafe0f42d82b | 243 | } |
Alex Young |
29:d9310e7b58b5 | 244 | |
Alex Young |
32:fafe0f42d82b | 245 | static bool configureMotionTracker(void) |
Alex Young |
32:fafe0f42d82b | 246 | { |
Alex Young |
32:fafe0f42d82b | 247 | uint32_t deviceId = readDeviceId(); |
Alex Young |
32:fafe0f42d82b | 248 | |
Alex Young |
32:fafe0f42d82b | 249 | if (deviceId) |
Alex Young |
32:fafe0f42d82b | 250 | { |
Alex Young |
40:b77a8c10c76d | 251 | pc.printf("Found device with ID: %08X.\n", deviceId); |
Alex Young |
40:b77a8c10c76d | 252 | if (!XsDeviceId_isMtMk4_X(deviceId)) |
Alex Young |
40:b77a8c10c76d | 253 | { |
Alex Young |
40:b77a8c10c76d | 254 | pc.printf("Device is not an MTi-1 series.\n"); |
Alex Young |
40:b77a8c10c76d | 255 | return false; |
Alex Young |
40:b77a8c10c76d | 256 | } |
Alex Young |
32:fafe0f42d82b | 257 | |
Alex Young |
40:b77a8c10c76d | 258 | DeviceFunction function = XsDeviceId_getFunction(deviceId); |
Alex Young |
40:b77a8c10c76d | 259 | pc.printf("Device is an MTi-%d: %s.\n", function, XsDeviceId_functionDescription(function)); |
Alex Young |
40:b77a8c10c76d | 260 | |
Alex Young |
40:b77a8c10c76d | 261 | if (function == DF_IMU) |
Alex Young |
29:d9310e7b58b5 | 262 | { |
Alex Young |
32:fafe0f42d82b | 263 | OutputConfiguration conf[] = { |
Alex Young |
32:fafe0f42d82b | 264 | {XDI_PacketCounter, 65535}, |
Alex Young |
32:fafe0f42d82b | 265 | {XDI_SampleTimeFine, 65535}, |
Alex Young |
32:fafe0f42d82b | 266 | {XDI_Acceleration, 100}, |
Alex Young |
32:fafe0f42d82b | 267 | {XDI_RateOfTurn, 100}, |
Alex Young |
32:fafe0f42d82b | 268 | {XDI_MagneticField, 100} |
Alex Young |
32:fafe0f42d82b | 269 | }; |
Alex Young |
32:fafe0f42d82b | 270 | return setOutputConfiguration(conf, |
Alex Young |
32:fafe0f42d82b | 271 | sizeof(conf) / sizeof(OutputConfiguration)); |
Alex Young |
29:d9310e7b58b5 | 272 | } |
Alex Young |
29:d9310e7b58b5 | 273 | else |
Alex Young |
29:d9310e7b58b5 | 274 | { |
Alex Young |
32:fafe0f42d82b | 275 | OutputConfiguration conf[] = { |
Alex Young |
32:fafe0f42d82b | 276 | {XDI_PacketCounter, 65535}, |
Alex Young |
32:fafe0f42d82b | 277 | {XDI_SampleTimeFine, 65535}, |
Alex Young |
32:fafe0f42d82b | 278 | {XDI_Quaternion, 100}, |
Alex Young |
32:fafe0f42d82b | 279 | {XDI_StatusWord, 65535} |
Alex Young |
32:fafe0f42d82b | 280 | }; |
Alex Young |
32:fafe0f42d82b | 281 | return setOutputConfiguration(conf, |
Alex Young |
32:fafe0f42d82b | 282 | sizeof(conf) / sizeof(OutputConfiguration)); |
Alex Young |
29:d9310e7b58b5 | 283 | } |
Alex Young |
29:d9310e7b58b5 | 284 | } |
Alex Young |
32:fafe0f42d82b | 285 | |
Alex Young |
32:fafe0f42d82b | 286 | return false; |
Alex Young |
29:d9310e7b58b5 | 287 | } |
Alex Young |
29:d9310e7b58b5 | 288 | |
Alex Young |
35:7e519b88c610 | 289 | /*! |
Alex Young |
35:7e519b88c610 | 290 | * \brief Wait for a wakeup message from the MTi. |
Alex Young |
37:3e87bf647c68 | 291 | * \param timeout Time to wait to receive the wakeup message. |
Alex Young |
37:3e87bf647c68 | 292 | * \return true if wakeup received within timeout, else false. |
Alex Young |
35:7e519b88c610 | 293 | * |
Alex Young |
35:7e519b88c610 | 294 | * The MTi sends a XMID_Wakeup message once it has completed its bootup |
Alex Young |
35:7e519b88c610 | 295 | * procedure. If this is acknowledged by a XMID_WakeupAck message then the MTi |
Alex Young |
35:7e519b88c610 | 296 | * will stay in configuration mode. Otherwise it will automatically enter |
Alex Young |
35:7e519b88c610 | 297 | * measurement mode with the stored output configuration. |
Alex Young |
35:7e519b88c610 | 298 | */ |
Alex Young |
37:3e87bf647c68 | 299 | bool waitForWakeup(uint32_t timeout) |
Alex Young |
35:7e519b88c610 | 300 | { |
Alex Young |
37:3e87bf647c68 | 301 | osEvent ev = g_responseQueue.get(timeout); |
Alex Young |
35:7e519b88c610 | 302 | if (ev.status == osEventMessage) |
Alex Young |
35:7e519b88c610 | 303 | { |
Alex Young |
35:7e519b88c610 | 304 | XbusMessage const* m = (XbusMessage const*)ev.value.p; |
Alex Young |
35:7e519b88c610 | 305 | XbusMessageMemoryManager janitor(m); |
Alex Young |
35:7e519b88c610 | 306 | return m->mid == XMID_Wakeup; |
Alex Young |
35:7e519b88c610 | 307 | } |
Alex Young |
35:7e519b88c610 | 308 | return false; |
Alex Young |
35:7e519b88c610 | 309 | } |
Alex Young |
35:7e519b88c610 | 310 | |
Alex Young |
35:7e519b88c610 | 311 | /*! |
Alex Young |
37:3e87bf647c68 | 312 | * \brief Send wakeup acknowledge message to MTi. |
Alex Young |
37:3e87bf647c68 | 313 | * |
Alex Young |
37:3e87bf647c68 | 314 | * Sending a wakeup acknowledge will cause the device to stay in configuration |
Alex Young |
37:3e87bf647c68 | 315 | * mode instead of automatically transitioning to measurement mode with the |
Alex Young |
37:3e87bf647c68 | 316 | * stored output configuration. |
Alex Young |
37:3e87bf647c68 | 317 | */ |
Alex Young |
37:3e87bf647c68 | 318 | void sendWakeupAck(void) |
Alex Young |
37:3e87bf647c68 | 319 | { |
Alex Young |
37:3e87bf647c68 | 320 | XbusMessage ack = {XMID_WakeupAck}; |
Alex Young |
37:3e87bf647c68 | 321 | sendMessage(&ack); |
Alex Young |
37:3e87bf647c68 | 322 | pc.printf("Device ready for operation.\n"); |
Alex Young |
37:3e87bf647c68 | 323 | } |
Alex Young |
37:3e87bf647c68 | 324 | |
Alex Young |
37:3e87bf647c68 | 325 | /*! |
Alex Young |
37:3e87bf647c68 | 326 | * \brief Restore communication with the MTi. |
Alex Young |
37:3e87bf647c68 | 327 | * |
Alex Young |
37:3e87bf647c68 | 328 | * On bootup the MTi will listen for a magic byte to signal that it should |
Alex Young |
37:3e87bf647c68 | 329 | * return to default baudrate and output configuration. This can be used to |
Alex Young |
37:3e87bf647c68 | 330 | * recover from a bad or unknown configuration. |
Alex Young |
37:3e87bf647c68 | 331 | */ |
Alex Young |
37:3e87bf647c68 | 332 | void restoreCommunication(void) |
Alex Young |
37:3e87bf647c68 | 333 | { |
Alex Young |
37:3e87bf647c68 | 334 | pc.printf("Restoring communication with device... "); |
Alex Young |
37:3e87bf647c68 | 335 | mtReset = 0; |
Alex Young |
37:3e87bf647c68 | 336 | Thread::wait(1); |
Alex Young |
37:3e87bf647c68 | 337 | mtReset = 1; |
Alex Young |
37:3e87bf647c68 | 338 | |
Alex Young |
37:3e87bf647c68 | 339 | do |
Alex Young |
37:3e87bf647c68 | 340 | { |
Alex Young |
37:3e87bf647c68 | 341 | mt.putc(0xDE); |
Alex Young |
37:3e87bf647c68 | 342 | } |
Alex Young |
37:3e87bf647c68 | 343 | while (!waitForWakeup(1)); |
Alex Young |
37:3e87bf647c68 | 344 | pc.printf("done\n"); |
Alex Young |
37:3e87bf647c68 | 345 | |
Alex Young |
37:3e87bf647c68 | 346 | sendWakeupAck(); |
Alex Young |
37:3e87bf647c68 | 347 | } |
Alex Young |
37:3e87bf647c68 | 348 | |
Alex Young |
37:3e87bf647c68 | 349 | /*! |
Alex Young |
35:7e519b88c610 | 350 | * \brief Releases the MTi reset line and waits for a wakeup message. |
Alex Young |
37:3e87bf647c68 | 351 | * |
Alex Young |
37:3e87bf647c68 | 352 | * If no wakeup message is received within 1 second the restore communications |
Alex Young |
37:3e87bf647c68 | 353 | * procedure is done to reset the MTi to default baudrate and output configuration. |
Alex Young |
35:7e519b88c610 | 354 | */ |
Alex Young |
35:7e519b88c610 | 355 | static void wakeupMotionTracker(void) |
Alex Young |
35:7e519b88c610 | 356 | { |
Alex Young |
35:7e519b88c610 | 357 | mtReset.write(1); // Release MT from reset. |
Alex Young |
37:3e87bf647c68 | 358 | if (waitForWakeup(1000)) |
Alex Young |
35:7e519b88c610 | 359 | { |
Alex Young |
37:3e87bf647c68 | 360 | sendWakeupAck(); |
Alex Young |
37:3e87bf647c68 | 361 | } |
Alex Young |
37:3e87bf647c68 | 362 | else |
Alex Young |
37:3e87bf647c68 | 363 | { |
Alex Young |
37:3e87bf647c68 | 364 | restoreCommunication(); |
Alex Young |
35:7e519b88c610 | 365 | } |
Alex Young |
35:7e519b88c610 | 366 | } |
Alex Young |
35:7e519b88c610 | 367 | |
Alex Young |
38:d8d410d1662c | 368 | static void printIntroMessage(void) |
Alex Young |
38:d8d410d1662c | 369 | { |
Alex Young |
38:d8d410d1662c | 370 | pc.printf("\n\n\n\n\n"); |
Alex Young |
38:d8d410d1662c | 371 | pc.printf("MTi-1 series embedded example firmware.\n"); |
Alex Young |
38:d8d410d1662c | 372 | } |
Alex Young |
38:d8d410d1662c | 373 | |
Alex Young |
38:d8d410d1662c | 374 | static void printUsageInstructions(void) |
Alex Young |
38:d8d410d1662c | 375 | { |
Alex Young |
38:d8d410d1662c | 376 | pc.printf("\n"); |
Alex Young |
38:d8d410d1662c | 377 | pc.printf("Press 'm' to start measuring and 'c' to return to config mode.\n"); |
Alex Young |
38:d8d410d1662c | 378 | } |
Alex Young |
38:d8d410d1662c | 379 | |
Alex Young |
2:b3e402dc11ca | 380 | int main(void) |
Alex Young |
2:b3e402dc11ca | 381 | { |
Alex Young |
4:98f063b2e6da | 382 | XbusParserCallback xbusCallback = {}; |
Alex Young |
25:01356fb59467 | 383 | xbusCallback.allocateBuffer = allocateMessageData; |
Alex Young |
25:01356fb59467 | 384 | xbusCallback.deallocateBuffer = deallocateMessageData; |
Alex Young |
24:2cc49dc854e3 | 385 | xbusCallback.handleMessage = mtMessageHandler; |
Alex Young |
4:98f063b2e6da | 386 | |
Alex Young |
4:98f063b2e6da | 387 | xbusParser = XbusParser_create(&xbusCallback); |
Alex Young |
4:98f063b2e6da | 388 | configureSerialPorts(); |
Alex Young |
38:d8d410d1662c | 389 | |
Alex Young |
38:d8d410d1662c | 390 | printIntroMessage(); |
Alex Young |
35:7e519b88c610 | 391 | wakeupMotionTracker(); |
Alex Young |
29:d9310e7b58b5 | 392 | if (configureMotionTracker()) |
Alex Young |
5:abc52dd88be2 | 393 | { |
Alex Young |
38:d8d410d1662c | 394 | printUsageInstructions(); |
Alex Young |
29:d9310e7b58b5 | 395 | for (;;) |
Alex Young |
26:665d3624f9ab | 396 | { |
Alex Young |
29:d9310e7b58b5 | 397 | while (pc.readable()) |
Alex Young |
29:d9310e7b58b5 | 398 | { |
Alex Young |
29:d9310e7b58b5 | 399 | handlePcCommand(pc.getc()); |
Alex Young |
29:d9310e7b58b5 | 400 | } |
Alex Young |
41:504b6821a96f | 401 | Thread::wait(10); |
Alex Young |
26:665d3624f9ab | 402 | } |
Alex Young |
5:abc52dd88be2 | 403 | } |
Alex Young |
29:d9310e7b58b5 | 404 | else |
Alex Young |
29:d9310e7b58b5 | 405 | { |
Alex Young |
29:d9310e7b58b5 | 406 | pc.printf("Failed to configure motion tracker.\n"); |
Alex Young |
29:d9310e7b58b5 | 407 | return -1; |
Alex Young |
29:d9310e7b58b5 | 408 | } |
Alex Young |
4:98f063b2e6da | 409 | } |