Arkadi Rafalovich / Mbed 2 deprecated TAU_ReSpeaker_DSP_V02

ReSpeaker DSP V02

Dependencies:   mbed MbedJSONValue

main.cpp@8:8a3e6241c104, 2018-08-22 (annotated)

Committer:
Arkadi
Date:
Wed Aug 22 12:57:13 2018 +0000
Revision:
8:8a3e6241c104
Parent:
7:25c81cb23e42
Child:
9:7e20c1e5a354
Added parameters to modify through gui

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Arkadi 0:bfac05b2d50f 1 ////////////////////////////////////////
Arkadi 1:574b54755983 2 // Tau_ReSpeaker_DSP V01 //
Arkadi 5:ec6f2323a263 3 // Arkadiraf@gmail.com - 09/04/2018 //
Arkadi 0:bfac05b2d50f 4 ////////////////////////////////////////
Arkadi 0:bfac05b2d50f 5 /*
Arkadi 5:ec6f2323a263 6 Json Format: json:{"name":"dsp","mode":"off"}\r\n
Arkadi 2:59c1a24aed7c 7 */
Arkadi 1:574b54755983 8
Arkadi 3:48258b86e182 9
Arkadi 0:bfac05b2d50f 10
Arkadi 0:bfac05b2d50f 11 /*
Arkadi 0:bfac05b2d50f 12 Board : Nucleo STM32F446RE
Arkadi 0:bfac05b2d50f 13 Power Source : USB
Arkadi 0:bfac05b2d50f 14 */
Arkadi 0:bfac05b2d50f 15
Arkadi 0:bfac05b2d50f 16 /*
Arkadi 0:bfac05b2d50f 17 Pinout:
Arkadi 0:bfac05b2d50f 18 PC - Serial 2
Arkadi 0:bfac05b2d50f 19 PA_2 (Tx) --> STLINK
Arkadi 0:bfac05b2d50f 20 PA_3 (Rx) --> STLINK
Arkadi 0:bfac05b2d50f 21
Arkadi 0:bfac05b2d50f 22 Switch - Serial 3
Arkadi 0:bfac05b2d50f 23 PC_10 (Tx) --> SW_Rx
Arkadi 0:bfac05b2d50f 24 PC_11 (Rx) --> SW_Tx
Arkadi 0:bfac05b2d50f 25
Arkadi 0:bfac05b2d50f 26 I2C_Bus
Arkadi 0:bfac05b2d50f 27 PB_8 --> SCL
Arkadi 0:bfac05b2d50f 28 PB_9 --> SDA
Arkadi 0:bfac05b2d50f 29
Arkadi 0:bfac05b2d50f 30 Digital output
Arkadi 0:bfac05b2d50f 31 PA_5 --> led (DigitalOut)
Arkadi 0:bfac05b2d50f 32
Arkadi 0:bfac05b2d50f 33 Digital Input
Arkadi 0:bfac05b2d50f 34 PA_10 --> SW_Trigger
Arkadi 0:bfac05b2d50f 35 PC_13 --> BTN (Blue)
Arkadi 0:bfac05b2d50f 36
Arkadi 1:574b54755983 37 PA_6 --> Toggle Pin (Loop Freq D12)
Arkadi 1:574b54755983 38
Arkadi 0:bfac05b2d50f 39 Analog Input
Arkadi 1:574b54755983 40 PA_0 --> SIG_IN_DSP (A0)
Arkadi 0:bfac05b2d50f 41
Arkadi 0:bfac05b2d50f 42 Analog Output
Arkadi 1:574b54755983 43 PA_4 --> SIG_OUT_DSP (A2)
Arkadi 0:bfac05b2d50f 44
Arkadi 0:bfac05b2d50f 45 */
Arkadi 0:bfac05b2d50f 46
Arkadi 0:bfac05b2d50f 47 ///////////////
Arkadi 0:bfac05b2d50f 48 // Libraries //
Arkadi 0:bfac05b2d50f 49 ///////////////
Arkadi 0:bfac05b2d50f 50 #include "mbed.h"
Arkadi 1:574b54755983 51 #include "MbedJSONValue.h"
Arkadi 0:bfac05b2d50f 52
Arkadi 0:bfac05b2d50f 53 ///////////////
Arkadi 0:bfac05b2d50f 54 // #defines //
Arkadi 0:bfac05b2d50f 55 ///////////////
Arkadi 1:574b54755983 56 // UART debug modes:
Arkadi 1:574b54755983 57 //#define DEBUG_MOD1 // json packet recognise
Arkadi 1:574b54755983 58 #define DEBUG_MOD2 // json parse
Arkadi 1:574b54755983 59 #define DEBUG_MOD3 // dsp handler
Arkadi 5:ec6f2323a263 60 #define DEBUG_MOD10 // responsivity msges to gui
Arkadi 6:e8b4ca41c691 61 #define DEBUG_MOD11 // loop frequency indicator
Arkadi 0:bfac05b2d50f 62 // Sine generator
Arkadi 1:574b54755983 63 #define PI_DOUBLE (3.141592653589793238462)
Arkadi 1:574b54755983 64 #define PI_FLOAT (3.14159f)
Arkadi 1:574b54755983 65
Arkadi 1:574b54755983 66 // json commad
Arkadi 1:574b54755983 67 #define MSG_BUFFER_SIZE 512
Arkadi 1:574b54755983 68 #define HEADER_SIZE 5
Arkadi 1:574b54755983 69 #define FOOTER_SIZE 2
Arkadi 0:bfac05b2d50f 70
Arkadi 0:bfac05b2d50f 71 /////////////
Arkadi 0:bfac05b2d50f 72 // Objects //
Arkadi 0:bfac05b2d50f 73 /////////////
Arkadi 1:574b54755983 74 // json
Arkadi 1:574b54755983 75 MbedJSONValue guiCmd;
Arkadi 0:bfac05b2d50f 76
Arkadi 0:bfac05b2d50f 77 // uart
Arkadi 1:574b54755983 78 Serial pc(USBTX, USBRX);
Arkadi 0:bfac05b2d50f 79
Arkadi 2:59c1a24aed7c 80 // uart switch_dsp
Arkadi 2:59c1a24aed7c 81 Serial switch_dsp(PC_10, PC_11);
Arkadi 2:59c1a24aed7c 82
Arkadi 0:bfac05b2d50f 83 // digital
Arkadi 0:bfac05b2d50f 84 DigitalIn user_button(PC_13);
Arkadi 8:8a3e6241c104 85 DigitalIn sw_trigger(PA_10);// D2
Arkadi 8:8a3e6241c104 86 DigitalOut led(PA_5); // D13
Arkadi 8:8a3e6241c104 87 DigitalOut mytoggle(PA_6); // D12
Arkadi 0:bfac05b2d50f 88
Arkadi 1:574b54755983 89 // analog / define to init at mbed initialization. work directly with registers
Arkadi 0:bfac05b2d50f 90 AnalogOut dsp_output(PA_4);
Arkadi 0:bfac05b2d50f 91 AnalogIn dsp_input(PA_0);
Arkadi 0:bfac05b2d50f 92
Arkadi 1:574b54755983 93
Arkadi 1:574b54755983 94 // ADC/DAC declarations
Arkadi 1:574b54755983 95 ADC_HandleTypeDef hadc1;
Arkadi 1:574b54755983 96 DAC_HandleTypeDef hdac1;
Arkadi 1:574b54755983 97
Arkadi 0:bfac05b2d50f 98 ///////////////
Arkadi 0:bfac05b2d50f 99 // variables //
Arkadi 0:bfac05b2d50f 100 ///////////////
Arkadi 0:bfac05b2d50f 101
Arkadi 1:574b54755983 102 // json buffer
Arkadi 1:574b54755983 103 char json[MSG_BUFFER_SIZE];
Arkadi 1:574b54755983 104
Arkadi 1:574b54755983 105 // packet variables
Arkadi 1:574b54755983 106 struct packetMSG_struct {
Arkadi 1:574b54755983 107 // recieve message variables
Arkadi 1:574b54755983 108 uint8_t header[HEADER_SIZE];
Arkadi 1:574b54755983 109 uint8_t footer[FOOTER_SIZE];
Arkadi 1:574b54755983 110 uint8_t syncIndex; // sync index for header / footer
Arkadi 1:574b54755983 111 uint8_t syncFlag; // 0 - waiting for header, 1 - waiting for footer, 2 - verify footer, 3 - finish footer send to parser, flash buffer
Arkadi 1:574b54755983 112 // buffer
Arkadi 1:574b54755983 113 uint16_t bufferIndex; // buffer index
Arkadi 1:574b54755983 114 uint8_t buffer[MSG_BUFFER_SIZE];
Arkadi 1:574b54755983 115 } ;
Arkadi 1:574b54755983 116 packetMSG_struct packetMSG;
Arkadi 1:574b54755983 117
Arkadi 1:574b54755983 118
Arkadi 1:574b54755983 119 // Dac Register for direct method of setting DAC value`s
Arkadi 1:574b54755983 120 __IO uint32_t Dac_Reg = 0;
Arkadi 1:574b54755983 121
Arkadi 0:bfac05b2d50f 122 // analog input
Arkadi 8:8a3e6241c104 123 //uint16_t adc_in=0;
Arkadi 0:bfac05b2d50f 124
Arkadi 1:574b54755983 125 // toogle pin state
Arkadi 1:574b54755983 126 bool toggelState=0;
Arkadi 1:574b54755983 127
Arkadi 1:574b54755983 128 // create function pointer
Arkadi 1:574b54755983 129 typedef void(*functionPtr)(void);
Arkadi 1:574b54755983 130 functionPtr FilterFunction;
Arkadi 1:574b54755983 131
Arkadi 3:48258b86e182 132 // alternative functuin selection (faster mcu process)
Arkadi 5:ec6f2323a263 133 volatile uint8_t operationMode = 1;
Arkadi 4:59319802012b 134 // 0 - off
Arkadi 4:59319802012b 135 // 1 - passthrough - no filter
Arkadi 4:59319802012b 136 // 2 - highpass - High Pass filter
Arkadi 4:59319802012b 137 // 3 - hpf_trig - High Pass filter + Trigger mode
Arkadi 7:25c81cb23e42 138 // 4 - gains_trig - highpass filter + trigger mode + Gains vector
Arkadi 3:48258b86e182 139
Arkadi 5:ec6f2323a263 140
Arkadi 5:ec6f2323a263 141 // Trigger mode variables
Arkadi 8:8a3e6241c104 142 float signalGain = 1.0; // Signal Gain
Arkadi 8:8a3e6241c104 143 float trigTresh = 0.5; // threshold for trigger mode
Arkadi 8:8a3e6241c104 144 uint32_t trigDelaySet = 5000; // counter for pulse pass
Arkadi 5:ec6f2323a263 145 uint32_t trigDelay = trigDelaySet; // counter for pulse pass
Arkadi 8:8a3e6241c104 146 uint32_t trigPause = 10; // pause after trigger in microseconds
Arkadi 5:ec6f2323a263 147
Arkadi 8:8a3e6241c104 148 // Buffer mode variables
Arkadi 8:8a3e6241c104 149 uint32_t bufferSizeSet = 5000;
Arkadi 8:8a3e6241c104 150 uint32_t bufferSize = bufferSizeSet;
Arkadi 8:8a3e6241c104 151 uint32_t preBufferSizeSet = 1000;
Arkadi 8:8a3e6241c104 152 uint32_t bufferCountDown = bufferSizeSet - preBufferSizeSet;
Arkadi 8:8a3e6241c104 153 float bufferADC[5000] = {0};
Arkadi 0:bfac05b2d50f 154 ///////////////
Arkadi 0:bfac05b2d50f 155 // Functions //
Arkadi 0:bfac05b2d50f 156 ///////////////
Arkadi 0:bfac05b2d50f 157
Arkadi 1:574b54755983 158 // init functions header //hadc1 needs to be defined preiod #incude
Arkadi 1:574b54755983 159 #include "adc_init.h" // initialize adc/dac directly for continious sample
Arkadi 1:574b54755983 160 #include "filters.h"
Arkadi 1:574b54755983 161
Arkadi 1:574b54755983 162 // nop operation
Arkadi 1:574b54755983 163 inline void NOP()
Arkadi 1:574b54755983 164 {
Arkadi 1:574b54755983 165 __ASM volatile ("nop"); // one tick operation, Use to adjust frequency by slowing down the proccess
Arkadi 1:574b54755983 166 }
Arkadi 1:574b54755983 167
Arkadi 1:574b54755983 168 // Serial Event function
Arkadi 1:574b54755983 169 void rxCallback(void);
Arkadi 1:574b54755983 170
Arkadi 1:574b54755983 171 // initialize packet struct
Arkadi 1:574b54755983 172 void initPacket(void);
Arkadi 1:574b54755983 173
Arkadi 1:574b54755983 174 // Packet Parser
Arkadi 1:574b54755983 175 void parsePacket(void);
Arkadi 1:574b54755983 176
Arkadi 1:574b54755983 177 // DSP Packet Handler
Arkadi 1:574b54755983 178 void dspPacket(void);
Arkadi 1:574b54755983 179
Arkadi 8:8a3e6241c104 180 // DSP Param Packet Handler
Arkadi 8:8a3e6241c104 181 void dspParamPacket(void);
Arkadi 8:8a3e6241c104 182
Arkadi 1:574b54755983 183 // initialize DSP
Arkadi 1:574b54755983 184 void initDSP(void);
Arkadi 0:bfac05b2d50f 185
Arkadi 0:bfac05b2d50f 186 ////////////////////////
Arkadi 0:bfac05b2d50f 187 // Main Code Setup : //
Arkadi 0:bfac05b2d50f 188 ////////////////////////
Arkadi 0:bfac05b2d50f 189 int main()
Arkadi 0:bfac05b2d50f 190 {
Arkadi 1:574b54755983 191 // init packet:
Arkadi 1:574b54755983 192 initPacket();
Arkadi 1:574b54755983 193
Arkadi 1:574b54755983 194 // initialize DSP
Arkadi 1:574b54755983 195 initDSP();
Arkadi 1:574b54755983 196
Arkadi 0:bfac05b2d50f 197 pc.baud(57600);
Arkadi 2:59c1a24aed7c 198 switch_dsp.baud(57600);
Arkadi 2:59c1a24aed7c 199
Arkadi 2:59c1a24aed7c 200
Arkadi 2:59c1a24aed7c 201 // pc is used for debbuging, in application mode the commands are from the switch_dsp.
Arkadi 1:574b54755983 202 // attach serial event interrupt
Arkadi 1:574b54755983 203 pc.attach(&rxCallback, Serial::RxIrq);
Arkadi 2:59c1a24aed7c 204
Arkadi 2:59c1a24aed7c 205 // attach serial event interrupt
Arkadi 2:59c1a24aed7c 206 switch_dsp.attach(&rxCallback, Serial::RxIrq);
Arkadi 2:59c1a24aed7c 207
Arkadi 0:bfac05b2d50f 208 #ifdef DEBUG_MOD1
Arkadi 0:bfac05b2d50f 209 pc.printf("ReSpeaker Test \r\n");
Arkadi 0:bfac05b2d50f 210 #endif
Arkadi 0:bfac05b2d50f 211
Arkadi 0:bfac05b2d50f 212 ///////////////////////
Arkadi 0:bfac05b2d50f 213 // Main Code Loop : //
Arkadi 0:bfac05b2d50f 214 ///////////////////////
Arkadi 0:bfac05b2d50f 215 while(1) {
Arkadi 1:574b54755983 216 // run selected filter
Arkadi 3:48258b86e182 217 if (operationMode == 0) {
Arkadi 4:59319802012b 218 offMode();
Arkadi 3:48258b86e182 219 } else if (operationMode == 1) {
Arkadi 4:59319802012b 220 passthrough();
Arkadi 4:59319802012b 221 } else if (operationMode == 2) {
Arkadi 4:59319802012b 222 highpass();
Arkadi 4:59319802012b 223 } else if (operationMode == 3) {
Arkadi 4:59319802012b 224 highpassTrig();
Arkadi 7:25c81cb23e42 225 } else if (operationMode == 4) {
Arkadi 7:25c81cb23e42 226 GainsTrig();
Arkadi 3:48258b86e182 227 }
Arkadi 4:59319802012b 228 //highpass_filter();
Arkadi 3:48258b86e182 229 // more elegant but much slower option:
Arkadi 3:48258b86e182 230 //FilterFunction();
Arkadi 1:574b54755983 231 #ifdef DEBUG_MOD11
Arkadi 1:574b54755983 232 // toggle pin, Loop frequency indicator
Arkadi 1:574b54755983 233 toggelState=!toggelState;
Arkadi 1:574b54755983 234 mytoggle.write(toggelState);
Arkadi 1:574b54755983 235 #endif
Arkadi 3:48258b86e182 236 } // end loop
Arkadi 3:48258b86e182 237 } // end main
Arkadi 0:bfac05b2d50f 238
Arkadi 0:bfac05b2d50f 239 ///////////////
Arkadi 0:bfac05b2d50f 240 // Functions //
Arkadi 0:bfac05b2d50f 241 ///////////////
Arkadi 0:bfac05b2d50f 242
Arkadi 1:574b54755983 243 // initialize DSP
Arkadi 1:574b54755983 244 void initDSP(void)
Arkadi 1:574b54755983 245 {
Arkadi 1:574b54755983 246 // init dac
Arkadi 1:574b54755983 247 ADC1_Init();
Arkadi 1:574b54755983 248 DAC1_Init();
Arkadi 1:574b54755983 249
Arkadi 1:574b54755983 250 HAL_ADC_Start(&hadc1);
Arkadi 1:574b54755983 251 HAL_DAC_Start(&hdac1, DAC_CHANNEL_1);
Arkadi 1:574b54755983 252
Arkadi 1:574b54755983 253 // define Dac Register for direct method of setting DAC value`s
Arkadi 1:574b54755983 254 Dac_Reg = (uint32_t) (hdac1.Instance);
Arkadi 1:574b54755983 255 Dac_Reg += __HAL_DHR12R1_ALIGNEMENT(DAC_ALIGN_12B_R);
Arkadi 1:574b54755983 256
Arkadi 1:574b54755983 257 // intialize filter function pointer
Arkadi 5:ec6f2323a263 258 FilterFunction = passthrough;//highpass_filter;
Arkadi 6:e8b4ca41c691 259 operationMode = 0 ;
Arkadi 1:574b54755983 260 }
Arkadi 1:574b54755983 261
Arkadi 1:574b54755983 262 // Serial Event function
Arkadi 1:574b54755983 263 void rxCallback(void)
Arkadi 0:bfac05b2d50f 264 {
Arkadi 2:59c1a24aed7c 265 while ((pc.readable()) || (switch_dsp.readable())) {
Arkadi 1:574b54755983 266 // read icoming
Arkadi 2:59c1a24aed7c 267 uint8_t in_byte=0;
Arkadi 1:574b54755983 268 //led = !led;
Arkadi 2:59c1a24aed7c 269 if (pc.readable()) {
Arkadi 2:59c1a24aed7c 270 in_byte = pc.getc();
Arkadi 2:59c1a24aed7c 271 } else if (switch_dsp.readable()) {
Arkadi 2:59c1a24aed7c 272 in_byte = switch_dsp.getc();
Arkadi 2:59c1a24aed7c 273 }
Arkadi 1:574b54755983 274 #ifdef DEBUG_MOD1
Arkadi 1:574b54755983 275 pc.putc(in_byte);
Arkadi 1:574b54755983 276 #endif
Arkadi 1:574b54755983 277 // detect start message , end message
Arkadi 1:574b54755983 278 switch (packetMSG.syncFlag) {
Arkadi 1:574b54755983 279 // waiting for header
Arkadi 1:574b54755983 280 case 0: {
Arkadi 1:574b54755983 281 if (packetMSG.header[packetMSG.syncIndex] == in_byte) {
Arkadi 1:574b54755983 282 packetMSG.syncIndex++;
Arkadi 1:574b54755983 283 if (packetMSG.syncIndex == HEADER_SIZE) { // finish header SYNC
Arkadi 1:574b54755983 284 packetMSG.syncFlag = 1; // start collecting data, wait for footer
Arkadi 1:574b54755983 285 packetMSG.bufferIndex = 0;
Arkadi 1:574b54755983 286 packetMSG.syncIndex=0;
Arkadi 1:574b54755983 287 }
Arkadi 1:574b54755983 288 } else { // reinit sync
Arkadi 1:574b54755983 289 packetMSG.syncIndex=0;
Arkadi 1:574b54755983 290 }
Arkadi 1:574b54755983 291 //pc.printf("case 0 , %d \r\n",packetMSG.syncIndex);
Arkadi 1:574b54755983 292 break;
Arkadi 1:574b54755983 293 }
Arkadi 1:574b54755983 294 // waiting for footer
Arkadi 1:574b54755983 295 case 1: {
Arkadi 1:574b54755983 296 // add byte to buffer
Arkadi 1:574b54755983 297 packetMSG.buffer[packetMSG.bufferIndex] = in_byte;
Arkadi 1:574b54755983 298 packetMSG.bufferIndex++;
Arkadi 1:574b54755983 299 if (packetMSG.bufferIndex >= MSG_BUFFER_SIZE) { // buffer overflow
Arkadi 1:574b54755983 300 // reset buffer
Arkadi 1:574b54755983 301 packetMSG.bufferIndex = 0;
Arkadi 1:574b54755983 302 packetMSG.syncIndex = 0;
Arkadi 1:574b54755983 303 packetMSG.syncFlag = 0;
Arkadi 1:574b54755983 304 } else if (packetMSG.footer[packetMSG.syncIndex] == in_byte) { // footer char recieved
Arkadi 1:574b54755983 305 packetMSG.syncIndex++;
Arkadi 1:574b54755983 306 packetMSG.syncFlag=2; // move to verify footer
Arkadi 1:574b54755983 307 }
Arkadi 1:574b54755983 308 //pc.printf("case 2 , %d \r\n",packetMSG.syncIndex);
Arkadi 1:574b54755983 309 break;
Arkadi 1:574b54755983 310 }
Arkadi 1:574b54755983 311 // verify footer
Arkadi 1:574b54755983 312 case 2: {
Arkadi 1:574b54755983 313 // add byte to buffer
Arkadi 1:574b54755983 314 packetMSG.buffer[packetMSG.bufferIndex] = in_byte;
Arkadi 1:574b54755983 315 packetMSG.bufferIndex++;
Arkadi 1:574b54755983 316 if (packetMSG.bufferIndex >= MSG_BUFFER_SIZE) { // buffer overflow
Arkadi 1:574b54755983 317 // reset buffer
Arkadi 1:574b54755983 318 packetMSG.bufferIndex = 0;
Arkadi 1:574b54755983 319 packetMSG.syncIndex = 0;
Arkadi 1:574b54755983 320 packetMSG.syncFlag = 0;
Arkadi 1:574b54755983 321 } else if (packetMSG.footer[packetMSG.syncIndex] == in_byte) { // footer char recieved
Arkadi 1:574b54755983 322 packetMSG.syncIndex++;
Arkadi 1:574b54755983 323 if (packetMSG.syncIndex == FOOTER_SIZE) { // finish footer SYNC
Arkadi 1:574b54755983 324 packetMSG.syncFlag = 3;
Arkadi 1:574b54755983 325 // copy packet to json buffer
Arkadi 1:574b54755983 326 memcpy (&json, &packetMSG.buffer, packetMSG.bufferIndex);
Arkadi 1:574b54755983 327 json[packetMSG.bufferIndex]=NULL; // end with NULL to indicate end of string
Arkadi 1:574b54755983 328 // copy packet to json buffer with sprintf
Arkadi 1:574b54755983 329 //sprintf(json, "%.*s", packetMSG.bufferIndex, packetMSG.buffer );
Arkadi 1:574b54755983 330 // send msg to parse.
Arkadi 1:574b54755983 331 parsePacket();
Arkadi 1:574b54755983 332 // reset buffer
Arkadi 1:574b54755983 333 packetMSG.bufferIndex = 0;
Arkadi 1:574b54755983 334 packetMSG.syncIndex = 0;
Arkadi 1:574b54755983 335 packetMSG.syncFlag = 0;
Arkadi 1:574b54755983 336 }
Arkadi 1:574b54755983 337 } else { // footer broke restart wait for footer
Arkadi 1:574b54755983 338 packetMSG.syncFlag=1;
Arkadi 1:574b54755983 339 // verify that it didnt broke on first footer char
Arkadi 1:574b54755983 340 if (packetMSG.footer[0] == in_byte) {
Arkadi 1:574b54755983 341 packetMSG.syncIndex=1;
Arkadi 1:574b54755983 342 } else {
Arkadi 1:574b54755983 343 packetMSG.syncIndex=0;
Arkadi 1:574b54755983 344 }
Arkadi 1:574b54755983 345 }
Arkadi 1:574b54755983 346 break;
Arkadi 1:574b54755983 347 }
Arkadi 1:574b54755983 348 default: {
Arkadi 1:574b54755983 349 pc.printf("Sonmething went wrong \r\n");
Arkadi 1:574b54755983 350 break;
Arkadi 1:574b54755983 351 }
Arkadi 1:574b54755983 352 } // end switch
Arkadi 1:574b54755983 353 }// end uart readable
Arkadi 1:574b54755983 354 } // end rxCallback
Arkadi 1:574b54755983 355
Arkadi 1:574b54755983 356 // initialize packet struct
Arkadi 1:574b54755983 357 void initPacket(void)
Arkadi 1:574b54755983 358 {
Arkadi 1:574b54755983 359 // init variables to default:
Arkadi 1:574b54755983 360 packetMSG.header[0] = 'j';
Arkadi 1:574b54755983 361 packetMSG.header[1] = 's';
Arkadi 1:574b54755983 362 packetMSG.header[2] = 'o';
Arkadi 1:574b54755983 363 packetMSG.header[3] = 'n';
Arkadi 1:574b54755983 364 packetMSG.header[4] = ':';
Arkadi 1:574b54755983 365
Arkadi 1:574b54755983 366 packetMSG.footer[0]= 13; // /r
Arkadi 1:574b54755983 367 packetMSG.footer[1]= 10; // /n
Arkadi 1:574b54755983 368
Arkadi 1:574b54755983 369 packetMSG.syncIndex=0; // sync index for header / footer
Arkadi 1:574b54755983 370 packetMSG.syncFlag=0; // 0 - waiting for header, 1 - waiting for footer, 2 - verify footer, 3 - finish footer send to parser, flash buffer
Arkadi 1:574b54755983 371 packetMSG.bufferIndex=0; // buffer index
Arkadi 1:574b54755983 372 }// end init Packet struct
Arkadi 1:574b54755983 373
Arkadi 1:574b54755983 374
Arkadi 1:574b54755983 375
Arkadi 1:574b54755983 376 // Packet Parser
Arkadi 1:574b54755983 377 void parsePacket(void)
Arkadi 1:574b54755983 378 {
Arkadi 1:574b54755983 379 string targetName;
Arkadi 1:574b54755983 380 #ifdef DEBUG_MOD2
Arkadi 1:574b54755983 381 // write buffer to screen
Arkadi 1:574b54755983 382 //pc.printf("%d, %.*s", packetMSG.bufferIndex ,packetMSG.bufferIndex, packetMSG.buffer );
Arkadi 1:574b54755983 383 pc.printf("%s", json);
Arkadi 1:574b54755983 384 #endif
Arkadi 1:574b54755983 385
Arkadi 1:574b54755983 386 // GUI message format Switch: {"name":"switch","mic":0, "spk": [0,1,0,0,0]}
Arkadi 1:574b54755983 387 parse(guiCmd, json);
Arkadi 1:574b54755983 388
Arkadi 1:574b54755983 389 // get target:
Arkadi 1:574b54755983 390 targetName = guiCmd["name"].get<string>(); // switch / dsp
Arkadi 1:574b54755983 391
Arkadi 1:574b54755983 392 #ifdef DEBUG_MOD2
Arkadi 1:574b54755983 393 // send parsed values
Arkadi 1:574b54755983 394 pc.printf("targetName: %s \r\n", targetName.c_str());
Arkadi 1:574b54755983 395 #endif
Arkadi 1:574b54755983 396
Arkadi 1:574b54755983 397 // select handler based on target mcu
Arkadi 1:574b54755983 398 if (targetName == "dsp") {
Arkadi 1:574b54755983 399 dspPacket();
Arkadi 8:8a3e6241c104 400 } else if (targetName == "dspParam") {
Arkadi 8:8a3e6241c104 401 dspParamPacket();
Arkadi 1:574b54755983 402 } else {
Arkadi 1:574b54755983 403 #ifdef DEBUG_MOD2
Arkadi 1:574b54755983 404 // unrecognised target
Arkadi 1:574b54755983 405 pc.printf("unrecognised target: %s \r\n", targetName.c_str());
Arkadi 1:574b54755983 406 #endif
Arkadi 0:bfac05b2d50f 407 }
Arkadi 1:574b54755983 408 // led blink
Arkadi 1:574b54755983 409 led = !led;
Arkadi 1:574b54755983 410 }// end parse
Arkadi 1:574b54755983 411
Arkadi 1:574b54755983 412 // DSP Packet Handler
Arkadi 1:574b54755983 413 void dspPacket(void)
Arkadi 1:574b54755983 414 {
Arkadi 1:574b54755983 415 string modeType;
Arkadi 4:59319802012b 416 // get operation mode
Arkadi 1:574b54755983 417 modeType = guiCmd["mode"].get<string>();
Arkadi 1:574b54755983 418
Arkadi 1:574b54755983 419 #ifdef DEBUG_MOD10
Arkadi 1:574b54755983 420 // send parsed values
Arkadi 4:59319802012b 421 pc.printf("mode: %s\r\n", modeType.c_str());
Arkadi 8:8a3e6241c104 422 //switch_dsp.printf("mode: %s\r\n", modeType.c_str());
Arkadi 1:574b54755983 423 #endif
Arkadi 1:574b54755983 424 // selected operation mode
Arkadi 4:59319802012b 425 if ( modeType == "off" ) {
Arkadi 4:59319802012b 426 FilterFunction = offMode;
Arkadi 3:48258b86e182 427 operationMode = 0 ;
Arkadi 4:59319802012b 428 } else if( modeType == "passthrough" ) {
Arkadi 4:59319802012b 429 FilterFunction = passthrough;
Arkadi 3:48258b86e182 430 operationMode = 1 ;
Arkadi 8:8a3e6241c104 431 } else if( modeType == "highpass" ) {
Arkadi 4:59319802012b 432 FilterFunction = highpass;
Arkadi 4:59319802012b 433 operationMode = 2 ;
Arkadi 8:8a3e6241c104 434 } else if( modeType == "hpf_trig" ) {
Arkadi 4:59319802012b 435 FilterFunction = highpassTrig;
Arkadi 4:59319802012b 436 operationMode = 3 ;
Arkadi 8:8a3e6241c104 437 } else if( modeType == "gain_trig" ) {
Arkadi 7:25c81cb23e42 438 FilterFunction = GainsTrig;
Arkadi 7:25c81cb23e42 439 operationMode = 4 ;
Arkadi 1:574b54755983 440 } else {
Arkadi 4:59319802012b 441 switch_dsp.printf("undefined mode %s \r\n", modeType.c_str());
Arkadi 4:59319802012b 442 FilterFunction = offMode;
Arkadi 3:48258b86e182 443 operationMode = 0 ;
Arkadi 1:574b54755983 444 }
Arkadi 1:574b54755983 445
Arkadi 8:8a3e6241c104 446 }// end dspPacket
Arkadi 8:8a3e6241c104 447 // DSP Param Packet Handler
Arkadi 8:8a3e6241c104 448 void dspParamPacket(void)
Arkadi 8:8a3e6241c104 449 {
Arkadi 8:8a3e6241c104 450 // get values.
Arkadi 8:8a3e6241c104 451 signalGain = ((float)guiCmd["gain"].get<int>())/1000; // issue in parsing doubles when the number is round
Arkadi 8:8a3e6241c104 452 trigTresh = ((float)guiCmd["trigTresh"].get<int>()) / 100.0f;
Arkadi 8:8a3e6241c104 453 trigDelaySet = (uint32_t)guiCmd["trigPass"].get<int>();
Arkadi 8:8a3e6241c104 454 trigPause = (uint32_t)guiCmd["trigPause"].get<int>();
Arkadi 8:8a3e6241c104 455
Arkadi 8:8a3e6241c104 456 trigDelay = trigDelaySet;
Arkadi 8:8a3e6241c104 457 #ifdef DEBUG_MOD10
Arkadi 8:8a3e6241c104 458 // send parsed values
Arkadi 8:8a3e6241c104 459 pc.printf("SignalGain: %f , trigTresh: %f , trigDelaySet %d , trigPause: %d\r\n", signalGain , trigTresh , trigDelaySet , trigPause);
Arkadi 8:8a3e6241c104 460 #endif
Arkadi 8:8a3e6241c104 461
Arkadi 8:8a3e6241c104 462 } // end dspParamPacket