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hathach
2018-02-09 23:06:27 +07:00
parent 7de0b11529
commit 342eaaee10
99 changed files with 31620 additions and 5052 deletions
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26
nRF5_SDK_11.0.0_89a8197/components/drivers_nrf/delay/nrf_delay.c
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/* Copyright (c) 2012 Nordic Semiconductor. All Rights Reserved.
*
* The information contained herein is property of Nordic Semiconductor ASA.
* Terms and conditions of usage are described in detail in NORDIC
* SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
*
* Licensees are granted free, non-transferable use of the information. NO
* WARRANTY of ANY KIND is provided. This heading must NOT be removed from
* the file.
*
*/
#include <stdio.h>
#include "compiler_abstraction.h"
#include "nrf.h"
#include "nrf_delay.h"
/*lint --e{438} "Variable not used" */
void nrf_delay_ms(uint32_t volatile number_of_ms)
{
while(number_of_ms != 0)
{
number_of_ms--;
nrf_delay_us(999);
}
}

447
nRF5_SDK_11.0.0_89a8197/components/drivers_nrf/delay/nrf_delay.h
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@ -1,242 +1,269 @@
/**
* Copyright (c) 2011 - 2017, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef _NRF_DELAY_H
#define _NRF_DELAY_H
#include "nrf.h"
#ifdef __cplusplus
extern "C" {
#endif
#define CLOCK_FREQ_16MHz (16000000UL)
#ifdef NRF52_SERIES
#define CPU_FREQ_64MHz
#endif
/**
* @brief Function for delaying execution for number of microseconds.
*
* @note NRF52 has instruction cache and because of that delay is not precise.
*
* @param number_of_ms
* @param number_of_us
*
*/
/*lint --e{438, 522} "Variable not used" "Function lacks side-effects" */
/*lint -e{438, 522, 40, 10, 563} */
__STATIC_INLINE void nrf_delay_us(uint32_t number_of_us);
/**
* @brief Function for delaying execution for number of miliseconds.
*
* @note NRF52 has instruction cache and because of that delay is not precise.
*
* @note Function internally calls @ref nrf_delay_us so the maximum delay is the
* same as in case of @ref nrf_delay_us, approx. 71 minutes.
*
* @param number_of_ms
*
*/
/*lint -e{438, 522, 40, 10, 563} */
__STATIC_INLINE void nrf_delay_ms(uint32_t number_of_ms);
#if defined ( __CC_ARM )
static __ASM void __INLINE nrf_delay_us(uint32_t volatile number_of_us)
__STATIC_INLINE void nrf_delay_us(uint32_t number_of_us)
{
loop
SUBS R0, R0, #1
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
#ifdef NRF52
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
#endif
BNE loop
BX LR
if (!number_of_us)
return;
__asm
{
loop:
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
CMP SystemCoreClock, CLOCK_FREQ_16MHz
BEQ cond
NOP
#ifdef CPU_FREQ_64MHz
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
#endif //CPU_FREQ_64MHz
cond:
SUBS number_of_us, #1
BNE loop
}
}
#elif defined ( __ICCARM__ )
#elif defined ( _WIN32 ) || defined ( __unix ) || defined( __APPLE__ )
static void __INLINE nrf_delay_us(uint32_t volatile number_of_us)
{
__ASM (
"loop:\n\t"
" SUBS R0, R0, #1\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
#ifdef NRF52
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
" NOP\n\t"
#endif
" BNE.n loop\n\t");
}
#elif defined ( _WIN32 ) /*|| defined ( __unix )*/ || defined( __APPLE__ )
__STATIC_INLINE void nrf_delay_us(uint32_t volatile number_of_us);
#ifndef CUSTOM_NRF_DELAY_US
__STATIC_INLINE void nrf_delay_us(uint32_t volatile number_of_us)
__STATIC_INLINE void nrf_delay_us(uint32_t number_of_us)
{}
#endif
#elif defined ( __GNUC__ )
#elif defined ( __GNUC__ ) || ( __ICCARM__ )
static void __INLINE nrf_delay_us(uint32_t volatile number_of_us) __attribute__((always_inline));
static void __INLINE nrf_delay_us(uint32_t volatile number_of_us)
__STATIC_INLINE void nrf_delay_us(uint32_t number_of_us)
{
register uint32_t delay __ASM ("r0") = number_of_us;
const uint32_t clock16MHz = CLOCK_FREQ_16MHz;
if (number_of_us)
{
__ASM volatile (
#ifdef NRF51
".syntax unified\n"
#if ( defined(__GNUC__) && (__CORTEX_M == (0x00U) ) )
".syntax unified\n"
#endif
"1:\n"
" SUBS %0, %0, #1\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
#ifdef NRF52
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
#endif
" BNE 1b\n"
#ifdef NRF51
"1:\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" CMP %[SystemCoreClock], %[clock16MHz]\n"
" BEQ.N 2f\n"
" NOP\n"
#ifdef CPU_FREQ_64MHz
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
#endif //CPU_FREQ_64MHz
"2:\n"
" SUBS %[number_of_us], %[number_of_us], #1\n"
" BNE.N 1b\n"
#if ( defined(__GNUC__) && (__CORTEX_M == (0x00U) ) )
".syntax divided\n"
#endif
: "+r" (delay));
#if ( __CORTEX_M == (0x00U) )
// The SUBS instruction in Cortex-M0 is available only in 16-bit encoding,
// hence it requires a "lo" register (r0-r7) as an operand.
: [number_of_us] "=l" (number_of_us)
#else
: [number_of_us] "=r" (number_of_us)
#endif
: [SystemCoreClock] "r" (SystemCoreClock),
[clock16MHz] "r" (clock16MHz),
"[number_of_us]" (number_of_us)
: "cc"
);
}
}
#endif
void nrf_delay_ms(uint32_t volatile number_of_ms);
__STATIC_INLINE void nrf_delay_ms(uint32_t number_of_ms)
{
nrf_delay_us(1000*number_of_ms);
}
#ifdef __cplusplus
}
#endif
#endif