Maxim Integrated
Host software for the MAX30001 ECG, PACE, biopotential, bioimpedance, R-to-R peak sensor. Hosted on the MAX32630FTHR.
Dependencies: SDFileSystem USBDevice max32630fthr
Fork of
MAX30001 SYS EvKit
by 
Emre Eken
MAX30001-MAX32630FTHR ECG Evaluation System
The MAX30001 EVKIT SYS-MBED Evaluation System (EV System) is used to evaluates the MAX30001 sensor, which is an ECG (electrocardiogram), biopotential and bioimpedance analog front end solution for wearable applications. The full evaluation system consists of the MAX32630FTHR board, MAX30001 EVKIT sensor board and the evaluation software. The evaluation kit features ECG, PACE, R-to-R (R-peak timing) detection; bioimpedance (BioZ) AFE; and raw data logging.
The MAX30001 EVKIT evaluation system is assembled, tested and contains the necessary circuitry and connections to evaluate the MAX30001 ECG sensor.
When evaluated as an evaluation system, the MAX32630FTHR board provides the necessary logic rails, master clock, SPI, USB-to-Serial interfaces that are needed to evaluate the MAX30001 sensor board. MAX32630FTHR can be used as an independent development platform.
Communication between the PC and the MAX32630FTHR board is facilitated by a Windows 7, Windows 8 and Windows 10 compatible software that provides a simple and intuitive graphical user interface (GUI).
For more information, visit the wiki pages by clicking the wiki tab above and MAX30001EVSYS product page.
C++ source code, library for the MAX30001 ECG drivers are in the links at the bottom of this page. The sample code includes the ability to log data to the SD card of the MAX32630FTHR.
MAX30001 EVKIT Pinout Connections
Where to Buy
HSP/RpcServer/RpcFifo.cpp@0:8e4630a71eb1, 2018-04-05 (annotated)
- Committer:
- Emre.Eken@IST-LT-35101.maxim-ic.internal
- Date:
- Thu Apr 05 10:53:26 2018 +0300
- Revision:
- 0:8e4630a71eb1
mbed os 5.8.1 compatible
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 1 | /******************************************************************************* |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 2 | * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved. |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 3 | * |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 5 | * copy of this software and associated documentation files (the "Software"), |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 6 | * to deal in the Software without restriction, including without limitation |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 9 | * Software is furnished to do so, subject to the following conditions: |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 10 | * |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 11 | * The above copyright notice and this permission notice shall be included |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 12 | * in all copies or substantial portions of the Software. |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 13 | * |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 15 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 16 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 17 | * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 18 | * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 20 | * OTHER DEALINGS IN THE SOFTWARE. |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 21 | * |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 22 | * Except as contained in this notice, the name of Maxim Integrated |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 23 | * Products, Inc. shall not be used except as stated in the Maxim Integrated |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 24 | * Products, Inc. Branding Policy. |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 25 | * |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 26 | * The mere transfer of this software does not imply any licenses |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 27 | * of trade secrets, proprietary technology, copyrights, patents, |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 28 | * trademarks, maskwork rights, or any other form of intellectual |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 29 | * property whatsoever. Maxim Integrated Products, Inc. retains all |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 30 | * ownership rights. |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 31 | ******************************************************************************* |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 32 | */ |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 33 | #include "mbed.h" |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 34 | #include "RpcFifo.h" |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 35 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 36 | /****************************************************************************/ |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 37 | void fifo_init(fifo_t *fifo, void *mem, unsigned int length) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 38 | // atomic FIFO access |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 39 | __disable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 40 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 41 | fifo->rindex = 0; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 42 | fifo->windex = 0; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 43 | fifo->data = mem; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 44 | fifo->length = length; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 45 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 46 | __enable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 47 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 48 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 49 | /****************************************************************************/ |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 50 | int fifo_put8(fifo_t *fifo, uint8_t element) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 51 | // Check if FIFO is full |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 52 | if ((fifo->windex == (fifo->rindex - 1)) || |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 53 | ((fifo->rindex == 0) && (fifo->windex == (fifo->length - 1)))) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 54 | return -1; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 55 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 56 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 57 | // atomic FIFO access |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 58 | __disable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 59 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 60 | // Put data into FIFO |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 61 | ((uint8_t *)(fifo->data))[fifo->windex] = element; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 62 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 63 | // Increment pointer |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 64 | fifo->windex++; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 65 | if (fifo->windex == fifo->length) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 66 | fifo->windex = 0; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 67 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 68 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 69 | __enable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 70 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 71 | return 0; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 72 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 73 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 74 | /****************************************************************************/ |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 75 | int fifo_get8(fifo_t *fifo, uint8_t *element) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 76 | // Check if FIFO is empty |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 77 | if (fifo->rindex == fifo->windex) |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 78 | return -1; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 79 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 80 | // atomic FIFO access |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 81 | __disable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 82 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 83 | // Get data from FIFO |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 84 | *element = ((uint8_t *)(fifo->data))[fifo->rindex]; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 85 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 86 | // Increment pointer |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 87 | fifo->rindex++; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 88 | if (fifo->rindex == fifo->length) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 89 | fifo->rindex = 0; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 90 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 91 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 92 | __enable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 93 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 94 | return 0; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 95 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 96 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 97 | /****************************************************************************/ |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 98 | int fifo_put16(fifo_t *fifo, uint16_t element) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 99 | // Check if FIFO is full |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 100 | if ((fifo->windex == (fifo->rindex - 1)) || |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 101 | ((fifo->rindex == 0) && (fifo->windex == (fifo->length - 1)))) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 102 | return -1; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 103 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 104 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 105 | // atomic FIFO access |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 106 | __disable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 107 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 108 | // Put data into FIFO |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 109 | ((uint16_t *)(fifo->data))[fifo->windex] = element; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 110 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 111 | // Increment pointer |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 112 | fifo->windex++; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 113 | if (fifo->windex == fifo->length) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 114 | fifo->windex = 0; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 115 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 116 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 117 | __enable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 118 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 119 | return 0; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 120 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 121 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 122 | /****************************************************************************/ |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 123 | int fifo_get16(fifo_t *fifo, uint16_t *element) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 124 | // Check if FIFO is empty |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 125 | if (fifo->rindex == fifo->windex) |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 126 | return -1; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 127 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 128 | // atomic FIFO access |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 129 | __disable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 130 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 131 | // Get data from FIFO |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 132 | *element = ((uint16_t *)(fifo->data))[fifo->rindex]; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 133 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 134 | // Increment pointer |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 135 | fifo->rindex++; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 136 | if (fifo->rindex == fifo->length) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 137 | fifo->rindex = 0; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 138 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 139 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 140 | __enable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 141 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 142 | return 0; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 143 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 144 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 145 | /****************************************************************************/ |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 146 | int fifo_put32(fifo_t *fifo, uint32_t element) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 147 | // Check if FIFO is full |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 148 | if ((fifo->windex == (fifo->rindex - 1)) || |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 149 | ((fifo->rindex == 0) && (fifo->windex == (fifo->length - 1)))) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 150 | return -1; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 151 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 152 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 153 | // atomic FIFO access |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 154 | __disable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 155 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 156 | // Put data into FIFO |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 157 | ((uint32_t *)(fifo->data))[fifo->windex] = element; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 158 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 159 | // Increment pointer |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 160 | fifo->windex++; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 161 | if (fifo->windex == fifo->length) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 162 | fifo->windex = 0; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 163 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 164 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 165 | __enable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 166 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 167 | return 0; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 168 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 169 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 170 | /****************************************************************************/ |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 171 | int fifo_get32(fifo_t *fifo, uint32_t *element) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 172 | // Check if FIFO is empty |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 173 | if (fifo->rindex == fifo->windex) |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 174 | return -1; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 175 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 176 | // atomic FIFO access |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 177 | __disable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 178 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 179 | // Get data from FIFO |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 180 | *element = ((uint32_t *)(fifo->data))[fifo->rindex]; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 181 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 182 | // Increment pointer |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 183 | fifo->rindex++; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 184 | if (fifo->rindex == fifo->length) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 185 | fifo->rindex = 0; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 186 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 187 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 188 | __enable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 189 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 190 | return 0; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 191 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 192 | /****************************************************************************/ |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 193 | void fifo_clear(fifo_t *fifo) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 194 | // atomic FIFO access |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 195 | __disable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 196 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 197 | fifo->rindex = 0; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 198 | fifo->windex = 0; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 199 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 200 | __enable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 201 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 202 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 203 | /****************************************************************************/ |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 204 | int fifo_empty(fifo_t *fifo) { return (fifo->rindex == fifo->windex); } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 205 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 206 | /****************************************************************************/ |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 207 | int fifo_full(fifo_t *fifo) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 208 | int retval; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 209 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 210 | // atomic FIFO access |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 211 | __disable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 212 | retval = ((fifo->windex == (fifo->rindex - 1)) || |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 213 | ((fifo->rindex == 0) && (fifo->windex == (fifo->length - 1)))); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 214 | __enable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 215 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 216 | return retval; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 217 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 218 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 219 | /****************************************************************************/ |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 220 | unsigned int fifo_level(fifo_t *fifo) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 221 | uint16_t value; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 222 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 223 | // atomic FIFO access |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 224 | __disable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 225 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 226 | if (fifo->windex >= fifo->rindex) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 227 | value = fifo->windex - fifo->rindex; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 228 | } else { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 229 | value = fifo->length - fifo->rindex + fifo->windex; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 230 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 231 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 232 | __enable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 233 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 234 | return value; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 235 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 236 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 237 | /****************************************************************************/ |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 238 | unsigned int fifo_remaining(fifo_t *fifo) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 239 | uint16_t value; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 240 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 241 | // atomic FIFO access |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 242 | __disable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 243 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 244 | if (fifo->rindex > fifo->windex) { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 245 | value = fifo->rindex - fifo->windex - 1; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 246 | } else { |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 247 | value = fifo->length - fifo->windex + fifo->rindex - 1; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 248 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 249 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 250 | __enable_irq(); |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 251 | |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 252 | return value; |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 253 | } |
| Emre.Eken@IST-LT-35101.maxim-ic.internal | 0:8e4630a71eb1 | 254 |
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Repository details
| Type: | Program |
|---|---|
| Mbed OS support: | Mbed OS |
| Created: | 13 Apr 2018 |
| Imports: | 374 |
| Forks: | 3 |
| Commits: | 14 |
| Dependents: | 0 |
| Dependencies: | 3 |
| Followers: | 112 |
ECG, PACE, R-to-R heart peak, Bio-Z, Biopotential sensor Evaluation Kit MAX30001