Enda Kilgarriff / platform_drivers

Update platform drivers

src/delay.cpp@9:9e247b9c9abf, 2020-06-15 (annotated)

Committer:
EndaKilgarriff
Date:
Mon Jun 15 13:03:55 2020 +0000
Revision:
9:9e247b9c9abf
Parent:
8:70fc373a5f46
Child:
10:b5115cd6b916
- Include the following libraries:; 	- crc; 	- crc8; 	- uart; 	- util; - Add microsecond delay; - Move baud rate definition to mbed_app.json file; - Add bit shift for I2C slave address; - Check error for redefinition; - Make gpio handling more robust;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mahphalke 8:70fc373a5f46 1 /***************************************************************************//**
mahphalke 8:70fc373a5f46 2 * @file delay.cpp
mahphalke 8:70fc373a5f46 3 * @brief Implementation of delay functionality
mahphalke 8:70fc373a5f46 4 ********************************************************************************
mahphalke 8:70fc373a5f46 5 * Copyright (c) 2019, 2020 Analog Devices, Inc.
mahphalke 8:70fc373a5f46 6 *
mahphalke 8:70fc373a5f46 7 * All rights reserved.
mahphalke 8:70fc373a5f46 8 *
mahphalke 8:70fc373a5f46 9 * This software is proprietary to Analog Devices, Inc. and its licensors.
mahphalke 8:70fc373a5f46 10 * By using this software you agree to the terms of the associated
mahphalke 8:70fc373a5f46 11 * Analog Devices Software License Agreement.
mahphalke 8:70fc373a5f46 12 *******************************************************************************/
mahphalke 8:70fc373a5f46 13
mahphalke 8:70fc373a5f46 14 /******************************************************************************/
mahphalke 8:70fc373a5f46 15 /***************************** Include Files **********************************/
mahphalke 8:70fc373a5f46 16 /******************************************************************************/
mahphalke 8:70fc373a5f46 17
mahphalke 8:70fc373a5f46 18 #include <mbed.h>
mahphalke 8:70fc373a5f46 19 #include "platform_drivers.h"
mahphalke 8:70fc373a5f46 20
mahphalke 8:70fc373a5f46 21 /******************************************************************************/
mahphalke 8:70fc373a5f46 22 /********************** Macros and Constants Definitions **********************/
mahphalke 8:70fc373a5f46 23 /******************************************************************************/
mahphalke 8:70fc373a5f46 24
mahphalke 8:70fc373a5f46 25 /******************************************************************************/
mahphalke 8:70fc373a5f46 26 /************************ Functions Definitions *******************************/
mahphalke 8:70fc373a5f46 27 /******************************************************************************/
mahphalke 8:70fc373a5f46 28
mahphalke 8:70fc373a5f46 29 /**
mahphalke 8:70fc373a5f46 30 * @brief Generate microseconds delay.
mahphalke 8:70fc373a5f46 31 * @param usecs - Delay in microseconds.
mahphalke 8:70fc373a5f46 32 * @return None.
mahphalke 8:70fc373a5f46 33 */
mahphalke 8:70fc373a5f46 34 void udelay(uint32_t usecs)
mahphalke 8:70fc373a5f46 35 {
EndaKilgarriff 9:9e247b9c9abf 36 if (usecs < 1000) {
EndaKilgarriff 9:9e247b9c9abf 37 // Simple delay, minimum time is 1ms.
EndaKilgarriff 9:9e247b9c9abf 38 HAL_Delay(1);
EndaKilgarriff 9:9e247b9c9abf 39 } else {
EndaKilgarriff 9:9e247b9c9abf 40 // This is a simple approach to guarantee a delay
EndaKilgarriff 9:9e247b9c9abf 41 usecs /= 1000;
EndaKilgarriff 9:9e247b9c9abf 42 usecs++; // Simple 'ceiling' to round up to guarantee minimum delay
EndaKilgarriff 9:9e247b9c9abf 43 HAL_Delay(usecs);
mahphalke 8:70fc373a5f46 44 }
mahphalke 8:70fc373a5f46 45 }
mahphalke 8:70fc373a5f46 46
mahphalke 8:70fc373a5f46 47 /**
mahphalke 8:70fc373a5f46 48 * @brief Generate miliseconds delay.
mahphalke 8:70fc373a5f46 49 * @param msecs - Delay in miliseconds.
mahphalke 8:70fc373a5f46 50 * @return None.
mahphalke 8:70fc373a5f46 51 */
mahphalke 8:70fc373a5f46 52 void mdelay(uint32_t msecs)
mahphalke 8:70fc373a5f46 53 {
mahphalke 8:70fc373a5f46 54 if (msecs) {
mahphalke 8:70fc373a5f46 55 HAL_Delay(msecs);
mahphalke 8:70fc373a5f46 56 }
mahphalke 8:70fc373a5f46 57 }