Maxim Integrated / Mbed OS MAX5715BOB_12bit_4ch_SPI_DAC

Example host software for the Maxim Integrated MAX5715 12-bit 4-channel voltage-output DAC. Hosted on the MAX32625MBED.

Dependencies:   MAX5715

Hello_MAX5715.cpp@17:45d1cf899e40, 2019-10-30 (annotated)

Committer:
whismanoid
Date:
Wed Oct 30 23:34:16 2019 +0000
Revision:
17:45d1cf899e40
Parent:
16:1892ac340a35 
move init out of while loop

Who changed what in which revision?

UserRevisionLine numberNew contents of line
whismanoid 14:fb5b0ac0426e 1 // /*******************************************************************************
whismanoid 14:fb5b0ac0426e 2 // * Copyright (C) 2019 Maxim Integrated Products, Inc., All Rights Reserved.
whismanoid 14:fb5b0ac0426e 3 // *
whismanoid 14:fb5b0ac0426e 4 // * Permission is hereby granted, free of charge, to any person obtaining a
whismanoid 14:fb5b0ac0426e 5 // * copy of this software and associated documentation files (the "Software"),
whismanoid 14:fb5b0ac0426e 6 // * to deal in the Software without restriction, including without limitation
whismanoid 14:fb5b0ac0426e 7 // * the rights to use, copy, modify, merge, publish, distribute, sublicense,
whismanoid 14:fb5b0ac0426e 8 // * and/or sell copies of the Software, and to permit persons to whom the
whismanoid 14:fb5b0ac0426e 9 // * Software is furnished to do so, subject to the following conditions:
whismanoid 14:fb5b0ac0426e 10 // *
whismanoid 14:fb5b0ac0426e 11 // * The above copyright notice and this permission notice shall be included
whismanoid 14:fb5b0ac0426e 12 // * in all copies or substantial portions of the Software.
whismanoid 14:fb5b0ac0426e 13 // *
whismanoid 14:fb5b0ac0426e 14 // * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
whismanoid 14:fb5b0ac0426e 15 // * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
whismanoid 14:fb5b0ac0426e 16 // * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
whismanoid 14:fb5b0ac0426e 17 // * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
whismanoid 14:fb5b0ac0426e 18 // * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
whismanoid 14:fb5b0ac0426e 19 // * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
whismanoid 14:fb5b0ac0426e 20 // * OTHER DEALINGS IN THE SOFTWARE.
whismanoid 14:fb5b0ac0426e 21 // *
whismanoid 14:fb5b0ac0426e 22 // * Except as contained in this notice, the name of Maxim Integrated
whismanoid 14:fb5b0ac0426e 23 // * Products, Inc. shall not be used except as stated in the Maxim Integrated
whismanoid 14:fb5b0ac0426e 24 // * Products, Inc. Branding Policy.
whismanoid 14:fb5b0ac0426e 25 // *
whismanoid 14:fb5b0ac0426e 26 // * The mere transfer of this software does not imply any licenses
whismanoid 14:fb5b0ac0426e 27 // * of trade secrets, proprietary technology, copyrights, patents,
whismanoid 14:fb5b0ac0426e 28 // * trademarks, maskwork rights, or any other form of intellectual
whismanoid 14:fb5b0ac0426e 29 // * property whatsoever. Maxim Integrated Products, Inc. retains all
whismanoid 14:fb5b0ac0426e 30 // * ownership rights.
whismanoid 14:fb5b0ac0426e 31 // *******************************************************************************
whismanoid 14:fb5b0ac0426e 32 // */
whismanoid 14:fb5b0ac0426e 33 // example code includes
whismanoid 14:fb5b0ac0426e 34 // standard include for target platform -- Platform_Include_Boilerplate
whismanoid 14:fb5b0ac0426e 35 #include "mbed.h"
whismanoid 14:fb5b0ac0426e 36 // Platforms:
whismanoid 14:fb5b0ac0426e 37 // - MAX32625MBED
whismanoid 14:fb5b0ac0426e 38 // - supports mbed-os-5.11, requires USBDevice library
whismanoid 14:fb5b0ac0426e 39 // - add https://developer.mbed.org/teams/MaximIntegrated/code/USBDevice/
whismanoid 14:fb5b0ac0426e 40 // - remove max32630fthr library (if present)
whismanoid 14:fb5b0ac0426e 41 // - remove MAX32620FTHR library (if present)
whismanoid 14:fb5b0ac0426e 42 // - MAX32600MBED
whismanoid 14:fb5b0ac0426e 43 // - remove max32630fthr library (if present)
whismanoid 14:fb5b0ac0426e 44 // - remove MAX32620FTHR library (if present)
whismanoid 14:fb5b0ac0426e 45 // - Windows 10 note: Don't connect HDK until you are ready to load new firmware into the board.
whismanoid 14:fb5b0ac0426e 46 // - NUCLEO_F446RE
whismanoid 14:fb5b0ac0426e 47 // - remove USBDevice library
whismanoid 14:fb5b0ac0426e 48 // - remove max32630fthr library (if present)
whismanoid 14:fb5b0ac0426e 49 // - remove MAX32620FTHR library (if present)
whismanoid 14:fb5b0ac0426e 50 // - NUCLEO_F401RE
whismanoid 14:fb5b0ac0426e 51 // - remove USBDevice library
whismanoid 14:fb5b0ac0426e 52 // - remove max32630fthr library (if present)
whismanoid 14:fb5b0ac0426e 53 // - remove MAX32620FTHR library (if present)
whismanoid 14:fb5b0ac0426e 54 // - MAX32630FTHR
whismanoid 14:fb5b0ac0426e 55 // - #include "max32630fthr.h"
whismanoid 14:fb5b0ac0426e 56 // - add http://os.mbed.org/teams/MaximIntegrated/code/max32630fthr/
whismanoid 14:fb5b0ac0426e 57 // - remove MAX32620FTHR library (if present)
whismanoid 14:fb5b0ac0426e 58 // - MAX32620FTHR
whismanoid 14:fb5b0ac0426e 59 // - #include "MAX32620FTHR.h"
whismanoid 14:fb5b0ac0426e 60 // - remove max32630fthr library (if present)
whismanoid 14:fb5b0ac0426e 61 // - add https://os.mbed.com/teams/MaximIntegrated/code/MAX32620FTHR/
whismanoid 14:fb5b0ac0426e 62 // - not tested yet
whismanoid 14:fb5b0ac0426e 63 // - MAX32625PICO
whismanoid 14:fb5b0ac0426e 64 // - remove max32630fthr library (if present)
whismanoid 14:fb5b0ac0426e 65 // - remove MAX32620FTHR library (if present)
whismanoid 14:fb5b0ac0426e 66 // - not tested yet
whismanoid 14:fb5b0ac0426e 67 //
whismanoid 14:fb5b0ac0426e 68 // end Platform_Include_Boilerplate
whismanoid 14:fb5b0ac0426e 69 #include "MAX5715.h"
whismanoid 14:fb5b0ac0426e 70
whismanoid 14:fb5b0ac0426e 71 // example code board support
whismanoid 14:fb5b0ac0426e 72 //MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3);
whismanoid 14:fb5b0ac0426e 73 //DigitalOut rLED(LED1);
whismanoid 14:fb5b0ac0426e 74 //DigitalOut gLED(LED2);
whismanoid 14:fb5b0ac0426e 75 //DigitalOut bLED(LED3);
whismanoid 14:fb5b0ac0426e 76 //
whismanoid 14:fb5b0ac0426e 77 // Arduino "shield" connector port definitions (MAX32625MBED shown)
whismanoid 14:fb5b0ac0426e 78 #if defined(TARGET_MAX32625MBED)
whismanoid 14:fb5b0ac0426e 79 #define A0 AIN_0
whismanoid 14:fb5b0ac0426e 80 #define A1 AIN_1
whismanoid 14:fb5b0ac0426e 81 #define A2 AIN_2
whismanoid 14:fb5b0ac0426e 82 #define A3 AIN_3
whismanoid 14:fb5b0ac0426e 83 #define D0 P0_0
whismanoid 14:fb5b0ac0426e 84 #define D1 P0_1
whismanoid 14:fb5b0ac0426e 85 #define D2 P0_2
whismanoid 14:fb5b0ac0426e 86 #define D3 P0_3
whismanoid 14:fb5b0ac0426e 87 #define D4 P0_4
whismanoid 14:fb5b0ac0426e 88 #define D5 P0_5
whismanoid 14:fb5b0ac0426e 89 #define D6 P0_6
whismanoid 14:fb5b0ac0426e 90 #define D7 P0_7
whismanoid 14:fb5b0ac0426e 91 #define D8 P1_4
whismanoid 14:fb5b0ac0426e 92 #define D9 P1_5
whismanoid 14:fb5b0ac0426e 93 #define D10 P1_3
whismanoid 14:fb5b0ac0426e 94 #define D11 P1_1
whismanoid 14:fb5b0ac0426e 95 #define D12 P1_2
whismanoid 14:fb5b0ac0426e 96 #define D13 P1_0
whismanoid 14:fb5b0ac0426e 97 #endif
whismanoid 14:fb5b0ac0426e 98
whismanoid 14:fb5b0ac0426e 99 // example code declare SPI interface
whismanoid 14:fb5b0ac0426e 100 #if defined(TARGET_MAX32625MBED)
whismanoid 14:fb5b0ac0426e 101 SPI spi(SPI1_MOSI, SPI1_MISO, SPI1_SCK); // mosi, miso, sclk spi1 TARGET_MAX32625MBED: P1_1 P1_2 P1_0 Arduino 10-pin header D11 D12 D13
whismanoid 14:fb5b0ac0426e 102 DigitalOut spi_cs(SPI1_SS); // TARGET_MAX32625MBED: P1_3 Arduino 10-pin header D10
whismanoid 14:fb5b0ac0426e 103 #elif defined(TARGET_MAX32600MBED)
whismanoid 14:fb5b0ac0426e 104 SPI spi(SPI2_MOSI, SPI2_MISO, SPI2_SCK); // mosi, miso, sclk spi1 TARGET_MAX32600MBED: Arduino 10-pin header D11 D12 D13
whismanoid 14:fb5b0ac0426e 105 DigitalOut spi_cs(SPI2_SS); // Generic: Arduino 10-pin header D10
whismanoid 14:fb5b0ac0426e 106 #else
whismanoid 14:fb5b0ac0426e 107 SPI spi(D11, D12, D13); // mosi, miso, sclk spi1 TARGET_MAX32600MBED: Arduino 10-pin header D11 D12 D13
whismanoid 14:fb5b0ac0426e 108 DigitalOut spi_cs(D10); // Generic: Arduino 10-pin header D10
whismanoid 14:fb5b0ac0426e 109 #endif
whismanoid 14:fb5b0ac0426e 110
whismanoid 14:fb5b0ac0426e 111 // example code declare GPIO interface pins
whismanoid 14:fb5b0ac0426e 112 DigitalOut LDACb_pin(D9); // Digital Trigger Input to MAX5715 device
whismanoid 14:fb5b0ac0426e 113 DigitalOut CLRb_pin(D8); // Digital Trigger Input to MAX5715 device
whismanoid 14:fb5b0ac0426e 114 // AnalogOut REF_pin(Px_x_PortName_To_Be_Determined); // Reference Input to MAX5715 device
whismanoid 14:fb5b0ac0426e 115 // AnalogIn OUTA_pin(A0); // Analog Output from MAX5715 device
whismanoid 14:fb5b0ac0426e 116 // AnalogIn OUTB_pin(A1); // Analog Output from MAX5715 device
whismanoid 14:fb5b0ac0426e 117 // AnalogIn OUTC_pin(A2); // Analog Output from MAX5715 device
whismanoid 14:fb5b0ac0426e 118 // AnalogIn OUTD_pin(A3); // Analog Output from MAX5715 device
whismanoid 14:fb5b0ac0426e 119 // DigitalIn RDYb_pin(Px_x_PortName_To_Be_Determined); // Digital MAX5715 Output from MAX5715 device
whismanoid 14:fb5b0ac0426e 120 // example code declare device instance
whismanoid 14:fb5b0ac0426e 121 MAX5715 g_MAX5715_device(spi, spi_cs, LDACb_pin, CLRb_pin, MAX5715::MAX5715_IC);
whismanoid 14:fb5b0ac0426e 122
whismanoid 14:fb5b0ac0426e 123 // example code main function
whismanoid 14:fb5b0ac0426e 124 int main()
whismanoid 14:fb5b0ac0426e 125 {
whismanoid 17:45d1cf899e40 126 g_MAX5715_device.Init();
whismanoid 17:45d1cf899e40 127
whismanoid 14:fb5b0ac0426e 128 while (1)
whismanoid 14:fb5b0ac0426e 129 {
whismanoid 14:fb5b0ac0426e 130 g_MAX5715_device.REF(MAX5715::REF_AlwaysOn_2V500);
whismanoid 14:fb5b0ac0426e 131
whismanoid 14:fb5b0ac0426e 132 uint16_t ch;
whismanoid 14:fb5b0ac0426e 133 uint16_t code;
whismanoid 14:fb5b0ac0426e 134 //
whismanoid 14:fb5b0ac0426e 135 ch = 0;
whismanoid 14:fb5b0ac0426e 136 code = 0x0ccc; // 80.0% of full scale REF(2.50V) = 2.00V
whismanoid 14:fb5b0ac0426e 137 g_MAX5715_device.CODEnLOADn(ch, code);
whismanoid 14:fb5b0ac0426e 138 //
whismanoid 14:fb5b0ac0426e 139 ch = 1;
whismanoid 14:fb5b0ac0426e 140 code = 0x07ff; // 50.0% of full scale REF(2.50V) = 1.25V
whismanoid 14:fb5b0ac0426e 141 g_MAX5715_device.CODEnLOADn(ch, code);
whismanoid 14:fb5b0ac0426e 142 //
whismanoid 14:fb5b0ac0426e 143 ch = 2;
whismanoid 14:fb5b0ac0426e 144 code = 0x0666; // 40.0% of full scale REF(2.50V) = 1.00V
whismanoid 14:fb5b0ac0426e 145 g_MAX5715_device.CODEnLOADn(ch, code);
whismanoid 14:fb5b0ac0426e 146 //
whismanoid 14:fb5b0ac0426e 147 ch = 3;
whismanoid 14:fb5b0ac0426e 148 code = 0x0fff; // 100.0% of full scale REF(2.50V) = 2.50V
whismanoid 14:fb5b0ac0426e 149 g_MAX5715_device.CODEnLOADn(ch, code);
whismanoid 14:fb5b0ac0426e 150
whismanoid 17:45d1cf899e40 151 // wait(3.0);
whismanoid 14:fb5b0ac0426e 152 }
whismanoid 14:fb5b0ac0426e 153 }