Test program for a Max30102 heartrate sensor on a STM32L476RG specific board ENSMM

Dependencies:   mbed

These two pictures show how to connect the Mheuve Sensor to the ST-Link debugger (don't forget to disable ST-link jumpers and JP5 on the board! ):

https://os.mbed.com/media/uploads/jimbaud/1611739514454.jpghttps://os.mbed.com/media/uploads/jimbaud/1611739514453.jpg

These two pictures show how to connect the Mheuve Sensor TX RX to the ST-Link debugger (don't forget to cross TX and RX, it means Mheuve sensor TX on ST-Link RX and ST-Link TX on Mheuve sensor RX ):

https://os.mbed.com/media/uploads/jimbaud/1611739514450.jpg https://os.mbed.com/media/uploads/jimbaud/1611739514452.jpg

The Mheuve sensor board needs to be powered by an external battery.

The result appears on the terminal, speed config is 115200 bds.

https://os.mbed.com/media/uploads/jimbaud/terminal.jpg

Files at this revision

API Documentation at this revision

Comitter:
jimbaud
Date:
Wed Jan 27 09:32:22 2021 +0000
Parent:
4:5273ab1085ab
Commit message:
Test program for a Max30102 heartrate sensor on a STM32L476RG specific board ENSMM

Changed in this revision

MAX30102/MAX30102.cpp Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file
--- a/MAX30102/MAX30102.cpp	Thu May 19 22:04:06 2016 +0000
+++ b/MAX30102/MAX30102.cpp	Wed Jan 27 09:32:22 2021 +0000
@@ -59,11 +59,9 @@
 #include "mbed.h"
 #include "MAX30102.h"
 
-#ifdef TARGET_MAX32600MBED
-I2C i2c(I2C1_SDA, I2C1_SCL);
-#else
-I2C i2c(I2C_SDA, I2C_SCL);
-#endif
+
+I2C i2c(PC_1, PC_0);
+
 
 bool maxim_max30102_write_reg(uint8_t uch_addr, uint8_t uch_data)
 /**
--- a/main.cpp	Thu May 19 22:04:06 2016 +0000
+++ b/main.cpp	Wed Jan 27 09:32:22 2021 +0000
@@ -1,76 +1,3 @@
-/** \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"
@@ -86,18 +13,12 @@
 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
+Serial pc(PB_10, PB_11);    //initializes the serial port
+
+DigitalOut led(PC_4);  //initializes the pwm output that connects to the on board LED
+DigitalIn INT(PC_13);  //pin PTD1 connects to the interrupt output pin of the MAX30102
+
+DigitalOut VEN(PC_2);  
 
 // the setup routine runs once when you press reset:
 int main() { 
@@ -111,22 +32,14 @@
     pc.baud(115200);
     pc.format(8,SerialBase::None,1);
     wait(1);
+    led = 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();
-    
+ 
+    VEN = 1;
     maxim_max30102_init();  //initializes the MAX30102
-        
-        
+         
     n_brightness=0;
     un_min=0x3FFFF;
     un_max=0;
@@ -136,7 +49,7 @@
     //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
+        //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
             
@@ -150,7 +63,7 @@
         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); 
@@ -200,9 +113,9 @@
                 if(n_brightness>MAX_BRIGHTNESS)
                     n_brightness=MAX_BRIGHTNESS;
             }
-#if defined(TARGET_KL25Z) || defined(TARGET_MAX32600MBED)
-            led.write(1-(float)n_brightness/256);
-#endif
+
+            led = 1;
+
             //send samples and calculation result to terminal program through UART
             pc.printf("red=");
             pc.printf("%i", aun_red_buffer[i]);
@@ -212,6 +125,7 @@
             pc.printf("HRvalid=%i, ", ch_hr_valid);
             pc.printf("SpO2=%i, ", n_sp02);
             pc.printf("SPO2Valid=%i\n\r", ch_spo2_valid);
+           // wait(1);
         }
         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); 
     }
--- a/mbed.bld	Thu May 19 22:04:06 2016 +0000
+++ b/mbed.bld	Wed Jan 27 09:32:22 2021 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/mbed_official/code/mbed/builds/6f327212ef96
\ No newline at end of file
+https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400
\ No newline at end of file