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Example host software to display SpO2 or Heart Rate on wrist using the MAX32664GWEC or MAXREFDES101 with IR/Red LED board. It is recommended that the MAX32664 be loaded with the latest Maxim supplied algorithm (.msbl file).
Dependencies: Maxim_Sensor_Hub_Communications BMI160 demoUI max32630hsp3
Fork of Host_Software_MAX32664GWEC_SpO2_HR by
main.cpp
- Committer:
- gmehmet
- Date:
- 2019-01-03
- Revision:
- 12:9e3de2ece9c4
- Parent:
- 0:ddc2fef69ef9
File content as of revision 12:9e3de2ece9c4:
/******************************************************************************* * Copyright (C) 2018 Maxim Integrated Products, Inc., All Rights Reserved. * * 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 MAXIM INTEGRATED 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. * * Except as contained in this notice, the name of Maxim Integrated * Products, Inc. shall not be used except as stated in the Maxim Integrated * Products, Inc. Branding Policy. * * The mere transfer of this software does not imply any licenses * of trade secrets, proprietary technology, copyrights, patents, * trademarks, maskwork rights, or any other form of intellectual * property whatsoever. Maxim Integrated Products, Inc. retains all * ownership rights. ******************************************************************************* */ /********************************************************************************** * * Desc: Example Code to get algorithm estimation results of Heart rate( HRM) and Blood * Oxygen (SPo2) form sensor hub and display it on screen. Example starts by monitoring heart rate * ans switches to blood oxygen monitoring via a button press (switch button) * * Example, * * 1. Initializes user interface * initialize display screen and switch button for algo selection. * * 2. Initializes underlying hardware port for sensor hub communication: * setup i2c comm. inits reset pin and mfio event pin and connects interrupt to mfio pin. * * 3. When switched to a minitoring mode * disables previous algorithm, clears mfio event * calls default init function for the sensor whose data is used by enabled algorithms. Algorithms are * registered under sesnor instance for this example. Fcunction * 1. initialize algorithm config struct enabled * 2. enable data type to both raw sensor and algorithm data * 3. get input fifo size to learn fifo capacity * 4. set fifo threshold for mfio event frequency * 5. reaenable sensor to acquire ppg data * 6. enable accompanying accel sensor * 7. enable switched algorithm * * 4. Sensor Hub now starts to write raw sensor/algorithm data to its data report FIFO which * reports mfio event when data size determined by fifo threshold is written to report fifo. * * 5. Example calls SH_Max8614x_data_report_execute() which * 1. calls SH API's sh_ss_execute_once() function which: * writes sensor hub's report fifo content (sensor/algorithm data samples) to a buffer(1). * 2. calls CSTMR_SH_FeedAccDataIntoSH() to send accelerometer data to sensor hub which os required for heart rate * Note: SPo2 requires stablity so do not move/shake senor when taking SPo2 data. * 3. Parses buffer(1) data to extract numeric sensor and algorithm samples according to enabled algorithms. * look: whrm_data_rx() , wspo2_data_rx() , max8614x_data_rx() and sample structs whrm_mode1_data, wspo2_mode1_data and max8614x_mode1_data * * 6. numeric values are written to HrmResult, SPO2Result ... within MAX8614x whrm_data_rx() ... and included as extern in main.cpp * * 7. Example calls demoUI_display_algo_estimations() to display result on watch screen * * ***********************************************************************************/ #include <events/mbed_events.h> #include <mbed.h> #include "max32630hsp.h" #include "SHComm.h" #include "SH_Max8614x_BareMetal.h" #include "bmi160.h" #include "demoUI.h" extern uint16_t HrmResult; extern uint16_t SPO2Result; extern uint8_t HrmConfidence; extern uint8_t SPo2Confidence; DigitalOut led1(LED1, 1); // Hardware serial port over DAPLink Serial daplink(USBTX, USBRX, 115200); // ICARUS Board initialization InterruptIn interruptIn_PowerButton(P7_6); MAX32630HSP icarus(MAX32630HSP::VIO_1V8, &interruptIn_PowerButton); #define WAIT_SENSORHUB_STABLE_BOOTUP_MS ((uint32_t)2000) static bool isWhrmInitialized = false; static bool isSpo2Initialized = false; int main() { wait_ms(WAIT_SENSORHUB_STABLE_BOOTUP_MS); //demoUI_display_set_algoMode(kAlgoModeHeartRate); demoUI_init(); sh_init_hwcomm_interface(); sh_disable_irq_mfioevent(); sh_clear_mfio_event_flag(); sh_enable_irq_mfioevent(); int i = 0; #if 1 int displayMode; uint16_t resultToDisplay; uint8_t confidenceToDisplay; while(1) { displayMode = demoUI_display_get_mode(); if( displayMode == kAlgoModeHeartRate ){ if( !isWhrmInitialized){ #if defined(DEBUG_INFO) printf(" WHRM inititalized \r\n"); #endif SH_Max8614x_stop(); SH_Max8614x_default_init(kAlgoModeHeartRate); isWhrmInitialized = true; isSpo2Initialized = false; wait_ms(1000); /* for display screen*/ } resultToDisplay = HrmResult; confidenceToDisplay = HrmConfidence; }else{ if( !isSpo2Initialized){ #if defined(DEBUG_INFO) printf(" WSPo2 inititalized \r\n"); #endif SH_Max8614x_stop(); SH_Max8614x_default_init(kAlgoModeSPO2); isWhrmInitialized = false; isSpo2Initialized = true; wait_ms(1000); /* for display screen*/ } resultToDisplay = SPO2Result; confidenceToDisplay = SPo2Confidence; } int cumSampleCNt = SH_Max8614x_data_report_execute(); if(cumSampleCNt){ #if defined(DEBUG_INFO) printf("estimate: =%d conf: %d dispMode: %d \r\n", resultToDisplay , confidenceToDisplay, displayMode); #endif demoUI_display_algo_estimations(resultToDisplay); //printf(" Display Mode : %d \r\n", displayMode ); } } #else while(1) { SH_Max8614x_default_init(kAlgoModeHeartRate); while(1){ ++i; int cumSampleCNt = SH_Max8614x_data_report_execute(); if(cumSampleCNt) printf("hr_cttt=%d %d\r\n", HrmResult , HrmConfidence); wait_ms(2); led1 = !led1; if(i == 24000) { break; } } i = 0; SH_Max8614x_stop(); printf("Stopped\r\n"); while(1){ ++i; SH_Max8614x_data_report_execute(); wait_ms(2); led1 = !led1; if(i == 4000) { break; } } i = 0; } #endif }