From 4a13529748c983ff0d5627a28365ad7737141016 Mon Sep 17 00:00:00 2001
From: zhyinch <zhyinch@gmail.com>
Date: 星期五, 18 二月 2022 09:31:49 +0800
Subject: [PATCH] V1.62
---
源码/核心板/Src/OnChipDevices/Rcc_Nvic_Systick.c | 194 ++++++++++++++++++++++++++++++++++++++----------
1 files changed, 154 insertions(+), 40 deletions(-)
diff --git "a/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/OnChipDevices/Rcc_Nvic_Systick.c" "b/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/OnChipDevices/Rcc_Nvic_Systick.c"
index 6e55e6b..15cffba 100644
--- "a/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/OnChipDevices/Rcc_Nvic_Systick.c"
+++ "b/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/OnChipDevices/Rcc_Nvic_Systick.c"
@@ -1,46 +1,126 @@
#include "Rcc_Nvic_Systick.h"
-void Rcc_Init(void)
+//void Rcc_Init(void)
+//{
+// //----------使用内部RC晶振HSI 64MHz-----------
+// RCC_DeInit(); //将外设RCC寄存器重设为缺省值
+// RCC_HSICmd(ENABLE); //内部时钟使能
+// while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY)== RESET); //等待HSI就绪
+//
+// FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); //选择FLASH预取指缓存的模,预取指缓存使能
+// FLASH_SetLatency(FLASH_Latency_2); //设置FLASH存储器延时时钟周期数FLASH_Latency_2 2延时周期
+//
+//
+// RCC_HCLKConfig(RCC_SYSCLK_Div1); //设置AHB时钟（HCLK） RCC_SYSCLK_Div1——AHB时钟 = 系统时钟
+// RCC_PCLK2Config(RCC_HCLK_Div1); //设置高速AHB时钟（PCLK2）RCC_HCLK_Div1——APB2时钟 = HCLK
+// RCC_PCLK1Config(RCC_HCLK_Div2); //设置低速AHB时钟（PCLK1）RCC_HCLK_Div2——APB1时钟 = HCLK/2
+// RCC_PLLConfig(RCC_PLLSource_HSI_Div2, RCC_PLLMul_16); //设置PLL时钟源及倍频系数，频率为8/2*16=64Mhz
+// RCC_PLLCmd(ENABLE); //使能PLL
+//
+// while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET); //检查指定的RCC标志位(PLL准备好标志)设置与否
+// RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); //设置系统时钟（SYSCLK）
+// while(RCC_GetSYSCLKSource() != 0x08); //0x08：PLL作为系统时钟
+
+//// //----------使用外部RC晶振 72MHz-----------
+//// RCC_DeInit(); //初始化为缺省值
+//// RCC_HSEConfig(RCC_HSE_ON); //使能外部的高速时钟
+//// while(RCC_GetFlagStatus(RCC_FLAG_HSERDY) == RESET); //等待外部高速时钟使能就绪
+////
+//// FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); //Enable Prefetch Buffer
+//// FLASH_SetLatency(FLASH_Latency_2); //Flash 2 wait state
+////
+//// RCC_HCLKConfig(RCC_SYSCLK_Div1); //HCLK = SYSCLK
+//// RCC_PCLK2Config(RCC_HCLK_Div1); //PCLK2 = HCLK
+//// RCC_PCLK1Config(RCC_HCLK_Div2); //PCLK1 = HCLK/2
+//// RCC_PLLConfig(RCC_PLLSource_HSE_Div1,RCC_PLLMul_9); //PLLCLK = 8MHZ * 9 =72MHZ
+//// RCC_PLLCmd(ENABLE); //Enable PLLCLK
+////
+//// while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET); //Wait till PLLCLK is ready
+//// RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); //Select PLL as system clock
+//// while(RCC_GetSYSCLKSource()!=0x08); //Wait till PLL is used as system clock source
+//
+//}
+int RCC_Configuration(void)
{
- //----------使用内部RC晶振HSI 64MHz-----------
- RCC_DeInit(); //将外设RCC寄存器重设为缺省值
- RCC_HSICmd(ENABLE); //内部时钟使能
- while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY)== RESET); //等待HSI就绪
-
- FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); //选择FLASH预取指缓存的模,预取指缓存使能
- FLASH_SetLatency(FLASH_Latency_2); //设置FLASH存储器延时时钟周期数FLASH_Latency_2 2延时周期
-
-
- RCC_HCLKConfig(RCC_SYSCLK_Div1); //设置AHB时钟（HCLK） RCC_SYSCLK_Div1——AHB时钟 = 系统时钟
- RCC_PCLK2Config(RCC_HCLK_Div1); //设置高速AHB时钟（PCLK2）RCC_HCLK_Div1——APB2时钟 = HCLK
- RCC_PCLK1Config(RCC_HCLK_Div2); //设置低速AHB时钟（PCLK1）RCC_HCLK_Div2——APB1时钟 = HCLK/2
- RCC_PLLConfig(RCC_PLLSource_HSI_Div2, RCC_PLLMul_16); //设置PLL时钟源及倍频系数，频率为8/2*16=64Mhz
- RCC_PLLCmd(ENABLE); //使能PLL
-
- while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET); //检查指定的RCC标志位(PLL准备好标志)设置与否
- RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); //设置系统时钟（SYSCLK）
- while(RCC_GetSYSCLKSource() != 0x08); //0x08：PLL作为系统时钟
+ ErrorStatus HSEStartUpStatus;
+ RCC_ClocksTypeDef RCC_ClockFreq;
-// //----------使用外部RC晶振 72MHz-----------
-// RCC_DeInit(); //初始化为缺省值
-// RCC_HSEConfig(RCC_HSE_ON); //使能外部的高速时钟
-// while(RCC_GetFlagStatus(RCC_FLAG_HSERDY) == RESET); //等待外部高速时钟使能就绪
-//
-// FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable); //Enable Prefetch Buffer
-// FLASH_SetLatency(FLASH_Latency_2); //Flash 2 wait state
-//
-// RCC_HCLKConfig(RCC_SYSCLK_Div1); //HCLK = SYSCLK
-// RCC_PCLK2Config(RCC_HCLK_Div1); //PCLK2 = HCLK
-// RCC_PCLK1Config(RCC_HCLK_Div2); //PCLK1 = HCLK/2
-// RCC_PLLConfig(RCC_PLLSource_HSE_Div1,RCC_PLLMul_9); //PLLCLK = 8MHZ * 9 =72MHZ
-// RCC_PLLCmd(ENABLE); //Enable PLLCLK
-//
-// while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET); //Wait till PLLCLK is ready
-// RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK); //Select PLL as system clock
-// while(RCC_GetSYSCLKSource()!=0x08); //Wait till PLL is used as system clock source
-
+ /* RCC system reset(for debug purpose) */
+ RCC_DeInit();
+
+ /* Enable HSE */
+ RCC_HSEConfig(RCC_HSE_ON);
+
+ /* Wait till HSE is ready */
+ HSEStartUpStatus = RCC_WaitForHSEStartUp();
+
+ if(HSEStartUpStatus != ERROR)
+ {
+ SystemInit();
+ /* Enable Prefetch Buffer */
+ FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
+
+ /****************************************************************/
+ /* HSE= up to 25MHz (on EVB1000 is 12MHz),
+ * HCLK=72MHz, PCLK2=72MHz, PCLK1=36MHz */
+ /****************************************************************/
+ /* Flash 2 wait state */
+ FLASH_SetLatency(FLASH_Latency_2);
+ /* HCLK = SYSCLK */
+ RCC_HCLKConfig(RCC_SYSCLK_Div1);
+ /* PCLK2 = HCLK */
+ RCC_PCLK2Config(RCC_HCLK_Div1);
+ /* PCLK1 = HCLK/2 */
+ RCC_PCLK1Config(RCC_HCLK_Div2);
+ /* ADCCLK = PCLK2/4 */
+ RCC_ADCCLKConfig(RCC_PCLK2_Div6);
+ }
+// /* Configure PLLs *********************************************************/
+// /* PLL2 configuration: PLL2CLK = (HSE / 4) * 8 = 24 MHz */
+// RCC_PREDIV2Config(RCC_PREDIV2_Div4);
+// RCC_PLL2Config(RCC_PLL2Mul_8);
+
+// /* Enable PLL2 */
+// RCC_PLL2Cmd(ENABLE);
+
+// /* Wait till PLL2 is ready */
+// while (RCC_GetFlagStatus(RCC_FLAG_PLL2RDY) == RESET){}
+
+// /* PLL1 configuration: PLLCLK = (PLL2 / 3) * 9 = 72 MHz */
+// RCC_PREDIV1Config(RCC_PREDIV1_Source_PLL2, RCC_PREDIV1_Div3);
+
+// RCC_PLLConfig(RCC_PLLSource_PREDIV1, RCC_PLLMul_9);
+
+// /* Enable PLL */
+// RCC_PLLCmd(ENABLE);
+
+// /* Wait till PLL is ready */
+// while (RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET){}
+
+// /* Select PLL as system clock source */
+// RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
+
+// /* Wait till PLL is used as system clock source */
+// while (RCC_GetSYSCLKSource() != 0x08){}
+// }
+
+ RCC_GetClocksFreq(&RCC_ClockFreq);
+
+ /* Enable SPI1 clock */
+ RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
+
+ /* Enable SPI2 clock */
+ RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2, ENABLE);
+
+ /* Enable GPIOs clocks */
+ RCC_APB2PeriphClockCmd(
+ RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB |
+ RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD |
+ RCC_APB2Periph_GPIOE | RCC_APB2Periph_AFIO,
+ ENABLE);
+
+ return 0;
}
-
void Nvic_Init(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
@@ -53,7 +133,10 @@
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
-
+ NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
+ NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
+ NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+ NVIC_Init(&NVIC_InitStructure);
NVIC_InitStructure.NVIC_IRQChannel = RTCAlarm_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
@@ -62,7 +145,38 @@
NVIC_Init(&NVIC_InitStructure);
}
-
+//?????3?????
+//???????APB1?2?,?APB1?36M
+//arr:??????
+//psc:??????
+//?????????3!
+void TIM3_Int_Init(void)
+{
+ TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
+ NVIC_InitTypeDef NVIC_InitStructure;
+
+ RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE); //????
+
+ //???TIM3???
+ TIM_TimeBaseStructure.TIM_Period = 1000-1; //???????????????????????????
+ TIM_TimeBaseStructure.TIM_Prescaler =72-1; //??????TIMx???????????
+ TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1; //??????:TDTS = Tck_tim
+ TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up; //TIM??????
+ TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); //??????????TIMx???????
+
+ TIM_ITConfig(TIM3,TIM_IT_Update,ENABLE ); //?????TIM3??,??????
+
+ //?????NVIC??
+ NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn; //TIM3??
+ NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0; //?????0?
+ NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; //????3?
+ NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ?????
+ NVIC_Init(&NVIC_InitStructure); //???NVIC???
+
+
+ TIM_Cmd(TIM3, ENABLE); //??TIMx
+}
+//???3??????
int Systick_Init(void)
{
int time_retry = 500;
--
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