The sample code to control MAX77756. It controls the output voltage from 1500mV to 7500mV in 50mV step. It was tested using MAX32630FTHR and MAX77756 Evaluation Kit.
Dependencies: max32630fthr max77756 mbed
main.cpp@0:53b089c2fe50, 2017-09-18 (annotated)
- Committer:
- daniel_gs_jeong
- Date:
- Mon Sep 18 10:53:47 2017 +0000
- Revision:
- 0:53b089c2fe50
Sample code to control MAX77756. This sample code controls the output voltage from 1500mV to 7500mV in 50mV step voltage and it was tested using MAX32630FTHR and MAX77756 Evaluation Kit.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
daniel_gs_jeong | 0:53b089c2fe50 | 1 | /********************************************************************** |
daniel_gs_jeong | 0:53b089c2fe50 | 2 | * Copyright (C) 2017 Maxim Integrated Products, Inc., All Rights Reserved. |
daniel_gs_jeong | 0:53b089c2fe50 | 3 | * |
daniel_gs_jeong | 0:53b089c2fe50 | 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
daniel_gs_jeong | 0:53b089c2fe50 | 5 | * copy of this software and associated documentation files (the "Software"), |
daniel_gs_jeong | 0:53b089c2fe50 | 6 | * to deal in the Software without restriction, including without limitation |
daniel_gs_jeong | 0:53b089c2fe50 | 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
daniel_gs_jeong | 0:53b089c2fe50 | 8 | * and/or sell copies of the Software, and to permit persons to whom the |
daniel_gs_jeong | 0:53b089c2fe50 | 9 | * Software is furnished to do so, subject to the following conditions: |
daniel_gs_jeong | 0:53b089c2fe50 | 10 | * |
daniel_gs_jeong | 0:53b089c2fe50 | 11 | * The above copyright notice and this permission notice shall be included |
daniel_gs_jeong | 0:53b089c2fe50 | 12 | * in all copies or substantial portions of the Software. |
daniel_gs_jeong | 0:53b089c2fe50 | 13 | * |
daniel_gs_jeong | 0:53b089c2fe50 | 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
daniel_gs_jeong | 0:53b089c2fe50 | 15 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
daniel_gs_jeong | 0:53b089c2fe50 | 16 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
daniel_gs_jeong | 0:53b089c2fe50 | 17 | * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES |
daniel_gs_jeong | 0:53b089c2fe50 | 18 | * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
daniel_gs_jeong | 0:53b089c2fe50 | 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
daniel_gs_jeong | 0:53b089c2fe50 | 20 | * OTHER DEALINGS IN THE SOFTWARE. |
daniel_gs_jeong | 0:53b089c2fe50 | 21 | * |
daniel_gs_jeong | 0:53b089c2fe50 | 22 | * Except as contained in this notice, the name of Maxim Integrated |
daniel_gs_jeong | 0:53b089c2fe50 | 23 | * Products, Inc. shall not be used except as stated in the Maxim Integrated |
daniel_gs_jeong | 0:53b089c2fe50 | 24 | * Products, Inc. Branding Policy. |
daniel_gs_jeong | 0:53b089c2fe50 | 25 | * |
daniel_gs_jeong | 0:53b089c2fe50 | 26 | * The mere transfer of this software does not imply any licenses |
daniel_gs_jeong | 0:53b089c2fe50 | 27 | * of trade secrets, proprietary technology, copyrights, patents, |
daniel_gs_jeong | 0:53b089c2fe50 | 28 | * trademarks, maskwork rights, or any other form of intellectual |
daniel_gs_jeong | 0:53b089c2fe50 | 29 | * property whatsoever. Maxim Integrated Products, Inc. retains all |
daniel_gs_jeong | 0:53b089c2fe50 | 30 | * ownership rights. |
daniel_gs_jeong | 0:53b089c2fe50 | 31 | **********************************************************************/ |
daniel_gs_jeong | 0:53b089c2fe50 | 32 | |
daniel_gs_jeong | 0:53b089c2fe50 | 33 | |
daniel_gs_jeong | 0:53b089c2fe50 | 34 | #include "mbed.h" |
daniel_gs_jeong | 0:53b089c2fe50 | 35 | #include "max77756.h" |
daniel_gs_jeong | 0:53b089c2fe50 | 36 | |
daniel_gs_jeong | 0:53b089c2fe50 | 37 | int main() |
daniel_gs_jeong | 0:53b089c2fe50 | 38 | { |
daniel_gs_jeong | 0:53b089c2fe50 | 39 | uint32_t rData; |
daniel_gs_jeong | 0:53b089c2fe50 | 40 | uint32_t outVoltage = 1500; |
daniel_gs_jeong | 0:53b089c2fe50 | 41 | |
daniel_gs_jeong | 0:53b089c2fe50 | 42 | DigitalOut rLED(LED1, LED_OFF); |
daniel_gs_jeong | 0:53b089c2fe50 | 43 | DigitalOut gLED(LED2, LED_OFF); |
daniel_gs_jeong | 0:53b089c2fe50 | 44 | DigitalOut bLED(LED3, LED_OFF); |
daniel_gs_jeong | 0:53b089c2fe50 | 45 | |
daniel_gs_jeong | 0:53b089c2fe50 | 46 | I2C i2cBus(P5_7, P6_0); |
daniel_gs_jeong | 0:53b089c2fe50 | 47 | i2cBus.frequency(400000); |
daniel_gs_jeong | 0:53b089c2fe50 | 48 | MAX77756 max77756(&i2cBus); |
daniel_gs_jeong | 0:53b089c2fe50 | 49 | |
daniel_gs_jeong | 0:53b089c2fe50 | 50 | wait_ms(100); |
daniel_gs_jeong | 0:53b089c2fe50 | 51 | |
daniel_gs_jeong | 0:53b089c2fe50 | 52 | max77756.config(MAX77756::S_SPECTRUM_OFF, MAX77756::S_START_8_ms, |
daniel_gs_jeong | 0:53b089c2fe50 | 53 | MAX77756::I_PEAK_LIMIT_700_mA, MAX77756::EN_LOGICAL_OR); |
daniel_gs_jeong | 0:53b089c2fe50 | 54 | |
daniel_gs_jeong | 0:53b089c2fe50 | 55 | while(1) { |
daniel_gs_jeong | 0:53b089c2fe50 | 56 | |
daniel_gs_jeong | 0:53b089c2fe50 | 57 | rData = max77756.outEnable(MAX77756::DISABLE); |
daniel_gs_jeong | 0:53b089c2fe50 | 58 | if (rData < 0) { |
daniel_gs_jeong | 0:53b089c2fe50 | 59 | rLED = 1; |
daniel_gs_jeong | 0:53b089c2fe50 | 60 | continue; |
daniel_gs_jeong | 0:53b089c2fe50 | 61 | } |
daniel_gs_jeong | 0:53b089c2fe50 | 62 | wait_ms(1000); |
daniel_gs_jeong | 0:53b089c2fe50 | 63 | |
daniel_gs_jeong | 0:53b089c2fe50 | 64 | rData = max77756.setVout(outVoltage); |
daniel_gs_jeong | 0:53b089c2fe50 | 65 | if (rData < 0) { |
daniel_gs_jeong | 0:53b089c2fe50 | 66 | rLED = 1; |
daniel_gs_jeong | 0:53b089c2fe50 | 67 | continue; |
daniel_gs_jeong | 0:53b089c2fe50 | 68 | } |
daniel_gs_jeong | 0:53b089c2fe50 | 69 | rData = max77756.outEnable(MAX77756::ENABLE); |
daniel_gs_jeong | 0:53b089c2fe50 | 70 | if (rData < 0) { |
daniel_gs_jeong | 0:53b089c2fe50 | 71 | rLED = 1; |
daniel_gs_jeong | 0:53b089c2fe50 | 72 | continue; |
daniel_gs_jeong | 0:53b089c2fe50 | 73 | } |
daniel_gs_jeong | 0:53b089c2fe50 | 74 | |
daniel_gs_jeong | 0:53b089c2fe50 | 75 | outVoltage += 50; |
daniel_gs_jeong | 0:53b089c2fe50 | 76 | if (outVoltage > 7500) { |
daniel_gs_jeong | 0:53b089c2fe50 | 77 | outVoltage = 1500; |
daniel_gs_jeong | 0:53b089c2fe50 | 78 | } |
daniel_gs_jeong | 0:53b089c2fe50 | 79 | |
daniel_gs_jeong | 0:53b089c2fe50 | 80 | gLED = !gLED; |
daniel_gs_jeong | 0:53b089c2fe50 | 81 | wait_ms(1000); |
daniel_gs_jeong | 0:53b089c2fe50 | 82 | } |
daniel_gs_jeong | 0:53b089c2fe50 | 83 | } |
daniel_gs_jeong | 0:53b089c2fe50 | 84 |