Revision 14:2a4baa07d46d, committed 2020-01-25

Comitter:

mjoun

Date:

Sat Jan 25 21:16:58 2020 +0000

Parent:

13:6c2d1cdcde12

Commit message:

The best;

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SerialInterface.lib	Sat Jan 25 21:16:58 2020 +0000
@@ -0,0 +1,1 @@
+https://developer.mbed.org/users/switches/code/SerialInterface/#bc8d6816839f

--- a/main.cpp	Wed Aug 22 17:40:45 2018 +0000
+++ b/main.cpp	Sat Jan 25 21:16:58 2020 +0000
@@ -2,6 +2,11 @@
 #include "rtos.h"
 #include "max32625pico.h"
 #include "USBKeyboard.h"
+#include "USBSerial.h"
+#include "SerialInterface.h"
+
+#define USB_MAX_RESP_LENGTH  511
+#define USB_MAX_CMD_LENGTH  511
 
 // Hardware serial port over DAPLink
 Serial daplink(P2_1, P2_0);
@@ -21,6 +26,20 @@
 
 MAX32625PICO pico(MAX32625PICO::IOH_DIP_IN, MAX32625PICO::VIO_IOH, MAX32625PICO::VIO_1V8);
 
+// Virtual serial port over USB
+USBSerial microUSB(0x0B6A, 0x4360);
+
+// Serial Interfaces
+I2C i2c(P1_6, P1_7);
+SPI spi(P0_5, P0_6, P0_4);
+DigitalInOut gpio[] = {P0_0, P0_1, P0_2, P0_3, P4_4, P4_5, P4_6, P4_7};
+AnalogIn ain[] = {AIN_0, AIN_1, AIN_2, AIN_3, AIN_4, AIN_5, AIN_6, AIN_7};
+
+// Serial Interface Adapter
+SerialInterface serInt(&i2c, &spi, gpio, ain);
+
+Thread threadUSB;
+
 // Function to report failure
 void testFailed()
 {
@@ -90,6 +109,16 @@
             gLED = ((ledCnt % 4) != 1);
             bLED = ((ledCnt % 4) != 2);
             rLED = ((ledCnt % 4) != 3);
+            microUSB.printf("counter = %d\r\n",ledCnt);
+//            if(gLED){
+//                microUSB.printf("counter = %d\r\n",rLED);
+//            }
+//            else if(bLED){
+//                microUSB.printf("bLED = %d\r\n",bLED);
+//                }
+//            else if(rLED) {
+//                microUSB.printf("rLED = %d\r\n",rLED);
+//                }
             Thread::wait(500);
         } else {
             Thread::wait(50);

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.txt	Sat Jan 25 21:16:58 2020 +0000
@@ -0,0 +1,221 @@
+/** \file main.cpp ******************************************************
+*
+* Project: MAXREFDES117#
+* Filename: main.cpp
+* Description: This module contains the Main application for the MAXREFDES117 example program.
+*
+*
+* --------------------------------------------------------------------
+*
+* This code follows the following naming conventions:
+*
+* char              ch_pmod_value
+* char (array)      s_pmod_s_string[16]
+* float             f_pmod_value
+* int32_t           n_pmod_value
+* int32_t (array)   an_pmod_value[16]
+* int16_t           w_pmod_value
+* int16_t (array)   aw_pmod_value[16]
+* uint16_t          uw_pmod_value
+* uint16_t (array)  auw_pmod_value[16]
+* uint8_t           uch_pmod_value
+* uint8_t (array)   auch_pmod_buffer[16]
+* uint32_t          un_pmod_value
+* int32_t *         pn_pmod_value
+*
+* ------------------------------------------------------------------------- */
+/*******************************************************************************
+* Copyright (C) 2016 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.
+*******************************************************************************
+*/
+/*!\mainpage Main Page
+*
+* \section intro_sec Introduction
+*
+* This is the code documentation for the MAXREFDES117# subsystem reference design.
+* 
+*  The Files page contains the File List page and the Globals page.
+* 
+*  The Globals page contains the Functions, Variables, and Macros sub-pages.
+*
+* \image html MAXREFDES117_Block_Diagram.png "MAXREFDES117# System Block Diagram"
+* 
+* \image html MAXREFDES117_firmware_Flowchart.png "MAXREFDES117# Firmware Flowchart"
+*
+*/
+#include "mbed.h"
+#include "algorithm.h"
+#include "MAX30102.h"
+#include "max32625pico.h"
+
+#define MAX_BRIGHTNESS 255
+
+uint32_t aun_ir_buffer[500]; //IR LED sensor data
+int32_t n_ir_buffer_length;    //data length
+uint32_t aun_red_buffer[500];    //Red LED sensor data
+int32_t n_sp02; //SPO2 value
+int8_t ch_spo2_valid;   //indicator to show if the SP02 calculation is valid
+int32_t n_heart_rate;   //heart rate value
+int8_t  ch_hr_valid;    //indicator to show if the heart rate calculation is valid
+uint8_t uch_dummy;
+
+Serial pc(USBTX, USBRX);    //initializes the serial port
+#ifdef TARGET_KL25Z 
+PwmOut led(PTB18);  //initializes the pwm output that connects to the on board LED
+DigitalIn INT(PTD1);  //pin PTD1 connects to the interrupt output pin of the MAX30102
+#endif
+#ifdef TARGET_K64F
+DigitalIn INT(PTD1);  //pin PTD1 connects to the interrupt output pin of the MAX30102
+#endif
+#ifdef TARGET_MAX32600MBED
+PwmOut led(LED_RED);    //initializes the pwm output that connects to the on board LED
+DigitalIn INT(P2_0);  //pin P20 connects to the interrupt output pin of the MAX30102
+#endif
+
+MAX32625PICO pico(MAX32625PICO::IOH_DIP_IN, MAX32625PICO::VIO_IOH, MAX32625PICO::VIO_1V8);
+// the setup routine runs once when you press reset:
+int main() { 
+    uint32_t un_min, un_max, un_prev_data;  //variables to calculate the on-board LED brightness that reflects the heartbeats
+    int i;
+    int32_t n_brightness;
+    float f_temp;
+    
+    maxim_max30102_reset(); //resets the MAX30102
+    // initialize serial communication at 115200 bits per second:
+    pc.baud(115200);
+    pc.format(8,SerialBase::None,1);
+    wait(1);
+    
+    //read and clear status register
+    maxim_max30102_read_reg(0,&uch_dummy);
+    
+    //wait until the user presses a key
+    while(pc.readable()==0)
+    {
+        pc.printf("\x1B[2J");  //clear terminal program screen
+        pc.printf("Press any key to start conversion\n\r");
+        wait(1);
+    }
+    uch_dummy=getchar();
+    
+    maxim_max30102_init();  //initializes the MAX30102
+        
+        
+    n_brightness=0;
+    un_min=0x3FFFF;
+    un_max=0;
+  
+    n_ir_buffer_length=500; //buffer length of 100 stores 5 seconds of samples running at 100sps
+    
+    //read the first 500 samples, and determine the signal range
+    for(i=0;i<n_ir_buffer_length;i++)
+    {
+        while(INT.read()==1);   //wait until the interrupt pin asserts
+        
+        maxim_max30102_read_fifo((aun_red_buffer+i), (aun_ir_buffer+i));  //read from MAX30102 FIFO
+            
+        if(un_min>aun_red_buffer[i])
+            un_min=aun_red_buffer[i];    //update signal min
+        if(un_max<aun_red_buffer[i])
+            un_max=aun_red_buffer[i];    //update signal max
+        pc.printf("red=");
+        pc.printf("%i", aun_red_buffer[i]);
+        pc.printf(", ir=");
+        pc.printf("%i\n\r", aun_ir_buffer[i]);
+    }
+    un_prev_data=aun_red_buffer[i];
+    
+    
+    //calculate heart rate and SpO2 after first 500 samples (first 5 seconds of samples)
+    maxim_heart_rate_and_oxygen_saturation(aun_ir_buffer, n_ir_buffer_length, aun_red_buffer, &n_sp02, &ch_spo2_valid, &n_heart_rate, &ch_hr_valid); 
+    
+    //Continuously taking samples from MAX30102.  Heart rate and SpO2 are calculated every 1 second
+    while(1)
+    {
+        i=0;
+        un_min=0x3FFFF;
+        un_max=0;
+        
+        //dumping the first 100 sets of samples in the memory and shift the last 400 sets of samples to the top
+        for(i=100;i<500;i++)
+        {
+            aun_red_buffer[i-100]=aun_red_buffer[i];
+            aun_ir_buffer[i-100]=aun_ir_buffer[i];
+            
+            //update the signal min and max
+            if(un_min>aun_red_buffer[i])
+            un_min=aun_red_buffer[i];
+            if(un_max<aun_red_buffer[i])
+            un_max=aun_red_buffer[i];
+        }
+        
+        //take 100 sets of samples before calculating the heart rate.
+        for(i=400;i<500;i++)
+        {
+            un_prev_data=aun_red_buffer[i-1];
+            while(INT.read()==1);
+            maxim_max30102_read_fifo((aun_red_buffer+i), (aun_ir_buffer+i));
+        
+            if(aun_red_buffer[i]>un_prev_data)
+            {
+                f_temp=aun_red_buffer[i]-un_prev_data;
+                f_temp/=(un_max-un_min);
+                f_temp*=MAX_BRIGHTNESS;
+                n_brightness-=(int)f_temp;
+                if(n_brightness<0)
+                    n_brightness=0;
+            }
+            else
+            {
+                f_temp=un_prev_data-aun_red_buffer[i];
+                f_temp/=(un_max-un_min);
+                f_temp*=MAX_BRIGHTNESS;
+                n_brightness+=(int)f_temp;
+                if(n_brightness>MAX_BRIGHTNESS)
+                    n_brightness=MAX_BRIGHTNESS;
+            }
+#if defined(TARGET_KL25Z) || defined(TARGET_MAX32600MBED)
+            led.write(1-(float)n_brightness/256);
+#endif
+            //send samples and calculation result to terminal program through UART
+            pc.printf("red=");
+            pc.printf("%i", aun_red_buffer[i]);
+            pc.printf(", ir=");
+            pc.printf("%i", aun_ir_buffer[i]);
+            pc.printf(", HR=%i, ", n_heart_rate); 
+            pc.printf("HRvalid=%i, ", ch_hr_valid);
+            pc.printf("SpO2=%i, ", n_sp02);
+            pc.printf("SPO2Valid=%i\n\r", ch_spo2_valid);
+        }
+        maxim_heart_rate_and_oxygen_saturation(aun_ir_buffer, n_ir_buffer_length, aun_red_buffer, &n_sp02, &ch_spo2_valid, &n_heart_rate, &ch_hr_valid); 
+    }
+}
+ 
\ No newline at end of file