You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
92 lines
3.0 KiB
92 lines
3.0 KiB
/*********************************************************
|
|
*Copyright (C), 2015, Shanghai Eastsoft Microelectronics Co., Ltd.
|
|
*文件名: lib_scs.c
|
|
*作 者: AE Team
|
|
*版 本: V1.01
|
|
*日 期: 2021/06/09
|
|
*描 述: SCS模块库函数
|
|
*备 注:
|
|
本软件仅供学习和演示使用，对用户直接引用代码所带来的风险或后果不承担任何法律责任。
|
|
**********************************************************/
|
|
#include "lib_scs.h"
|
|
|
|
/***************************************************************
|
|
函数名：NVIC_Init
|
|
描 述：NVIC初始化配置
|
|
输入值：Channel：中断通道 、 Priority：中断优先级 、 Cmd：失能或使能
|
|
输出值：无
|
|
返回值：无
|
|
***************************************************************/
|
|
void NVIC_Init(NVIC_IRQChannel Channel, NVIC_IRQPriority Priority,
|
|
TYPE_FUNCEN Cmd) {
|
|
uint32_t tmppriority = 0x00;
|
|
|
|
if (Cmd != Disable) {
|
|
/* Compute the Corresponding IRQ Priority */
|
|
tmppriority = NVIC->IP[Channel >> 0x02];
|
|
tmppriority &= (uint32_t)(~(((uint32_t)0xFF) << ((Channel & 0x03) * 8)));
|
|
tmppriority |= (uint32_t)((((uint32_t)Priority << 6) & 0xFF)
|
|
<< ((Channel & 0x03) * 8));
|
|
NVIC->IP[Channel >> 0x02] = tmppriority;
|
|
/* Enable the Selected IRQ Channels */
|
|
NVIC->ISER[0] = (uint32_t)0x01 << (Channel & (uint8_t)0x1F);
|
|
} else {
|
|
/* Disable the Selected IRQ Channels */
|
|
NVIC->ICER[0] = (uint32_t)0x01 << (Channel & (uint8_t)0x1F);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
/***************************************************************
|
|
函数名：SCB_SystemLPConfig
|
|
描 述：配置系统休眠模式
|
|
输入值：LowPowerMode：休眠模式 、 NewState：使能、使能
|
|
输出值：无
|
|
返回值：无
|
|
***************************************************************/
|
|
void SCB_SystemLPConfig(SCB_TYPE_SCR LowPowerMode, TYPE_FUNCEN NewState) {
|
|
|
|
if (NewState != Disable)
|
|
SCB->SCR |= LowPowerMode;
|
|
else
|
|
SCB->SCR &= (uint32_t)(~(uint32_t)LowPowerMode);
|
|
|
|
return;
|
|
}
|
|
|
|
/***************************************************************
|
|
函数名：SCB_GetCpuID
|
|
描 述：获取CPUID
|
|
输入值：无
|
|
输出值：无
|
|
返回值：32位ID值
|
|
***************************************************************/
|
|
uint32_t SCB_GetCpuID(void) { return (SCB->CPUID); }
|
|
|
|
/***************************************************************
|
|
函数名：SysTick_Init
|
|
描 述：SysTick初始化配置
|
|
输入值：初始化配置结构体地址
|
|
输出值：无
|
|
返回值：无
|
|
***************************************************************/
|
|
void SysTick_Init(SYSTICK_InitStruType *SysT_InitStruct) {
|
|
uint32_t temp32 = 0;
|
|
//重装载值寄存器
|
|
SysTick->LOAD = SysT_InitStruct->SysTick_Value;//4800
|
|
//当前值寄存器
|
|
SysTick->VAL = (uint32_t)0;
|
|
if (SysT_InitStruct->SysTick_ClkSource != SysTick_ClkS_Base)
|
|
temp32 |= 0x00000004;
|
|
else
|
|
temp32 &= 0xFFFFFFFB;
|
|
|
|
if (SysT_InitStruct->SysTick_ITEnable != Disable)
|
|
temp32 |= 0x00000002;
|
|
else
|
|
temp32 &= 0xFFFFFFFD;
|
|
|
|
SysTick->CTRL = temp32;
|
|
return;
|
|
}
|