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add files from nrf52832 bootloader project

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This commit is contained in:
hathach
2018-02-07 23:32:49 +07:00
parent ac1f0e7955
commit 9f1d9f321e
186 changed files with 83021 additions and 0 deletions
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26
nRF5_SDK_11.0.0_89a8197/components/drivers_nrf/delay/nrf_delay.c Normal file
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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);
}
}

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nRF5_SDK_11.0.0_89a8197/components/drivers_nrf/delay/nrf_delay.h Normal file
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#ifndef _NRF_DELAY_H
#define _NRF_DELAY_H
#include "nrf.h"
/**
* @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
*/
/*lint --e{438, 522} "Variable not used" "Function lacks side-effects" */
#if defined ( __CC_ARM )
static __ASM void __INLINE nrf_delay_us(uint32_t volatile number_of_us)
{
loop
SUBS R0, R0, #1
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
NOP
#ifdef NRF52
NOP
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NOP
NOP
NOP
NOP
#endif
BNE loop
BX LR
}
#elif defined ( __ICCARM__ )
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"
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" 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)
{}
#endif
#elif defined ( __GNUC__ )
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)
{
register uint32_t delay __ASM ("r0") = number_of_us;
__ASM volatile (
#ifdef NRF51
".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"
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" NOP\n"
" NOP\n"
" NOP\n"
" NOP\n"
#endif
" BNE 1b\n"
#ifdef NRF51
".syntax divided\n"
#endif
: "+r" (delay));
}
#endif
void nrf_delay_ms(uint32_t volatile number_of_ms);
#endif