RGB&七彩灯代码作业
#include "stm32f10x.h"
#include "stm32_eval.h"
#include <stdio.h>
#define VREF 3.3
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
USART_ClockInitTypeDef USART_ClockInitStructure;
void RCC_Configuration(void)
{
SystemInit();
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);
GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);
GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_ResetBits(GPIOD,GPIO_Pin_2);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC|RCC_APB2Periph_AFIO, ENABLE);
GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_SetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
}
void USART_int(long BaudRate)
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* PA10 USART1_Rx */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* USARTx configured as follow:
- BaudRate = 115200 baud
- Word Length = 8 Bits
- One Stop Bit
- No parity
- Hardware flow control disabled (RTS and CTS signals)
- Receive and transmit enabled
*/
USART_InitStructure.USART_BaudRate = BaudRate;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_ClockInitStructure.USART_Clock = USART_Clock_Disable;
USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;
USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;
USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;
USART_ClockInit(USART1, &USART_ClockInitStructure);
USART_Init(USART1, &USART_InitStructure);
USART_Cmd(USART1, ENABLE);
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
USART_Cmd(USART1, ENABLE);
}
void PWM_Config()
{uint16_t PrescalerValue = 0;//预分频器值
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
/* TIM2 clock enable */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
/* GPIOA enable */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO , ENABLE);//使能复用功能时钟
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;//复用推挽输出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
TIM_Cmd(TIM2, ENABLE);//TIM2使能
/* Compute the prescaler value */
PrescalerValue = (uint16_t) (SystemCoreClock / 24000000) - 1;
/* Time base configuration */
TIM_TimeBaseStructure.TIM_Period = 0x07FF;//设置自动重装载
TIM_TimeBaseStructure.TIM_Prescaler = PrescalerValue;//设置预分频值
TIM_TimeBaseStructure.TIM_ClockDivision = 0;//设置时钟分割TDTS=Tck_tim
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;//向上计数
TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);//根据指定参数初始化TIMx
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;//选择PWM模式1
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;//输出极性高
/* PWM1 Mode configuration: Channel2 */
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 0xFFFF;//通道占空比时间
TIM_OC2Init(TIM2, &TIM_OCInitStructure);//初始化TIM2 OC2
/* PWM1 Mode configuration: Channel3 */
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;//比较输出使能
TIM_OCInitStructure.TIM_Pulse = 0xFFFF;//通道占空比时间
TIM_OC3Init(TIM2, &TIM_OCInitStructure);//初始化TIM2 OC3
/* PWM1 Mode configuration: Channel4 */
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 0xFFFF;//通道占空比时间
TIM_OC4Init(TIM2, &TIM_OCInitStructure);//初始化TIM2 OC4
TIM_ARRPreloadConfig(TIM2, ENABLE);//使能预装载寄存器
}
void delay_us(u32 n)
{
u8 j;
while(n--)
for(j=0;j<10;j++);
}
void delay_ms(u32 n)
{
while(n--)
delay_us(1000);
}
void PWM_TEST()
{ unsigned int temp0,temp1,temp2;
printf("PWM-RGB TEST......\r\n");
while(1)
{
if(temp0=2000,temp1=2000,temp2=0)
{TIM_SetCompare2(TIM2,temp0);delay_ms(500);
TIM_SetCompare3(TIM2,temp1);delay_ms(500);
TIM_SetCompare4(TIM2,temp2);delay_ms(500);
}
if(temp0=1900,temp1=0,temp2=1900)
{TIM_SetCompare2(TIM2,temp0);delay_ms(500);
TIM_SetCompare3(TIM2,temp1);delay_ms(500);
TIM_SetCompare4(TIM2,temp2);delay_ms(500);
}
if(temp0=0,temp1=2000,temp2=2000)
{TIM_SetCompare2(TIM2,temp0);delay_ms(400);
TIM_SetCompare3(TIM2,temp1);delay_ms(500);
TIM_SetCompare4(TIM2,temp2);delay_ms(500);
}
if(temp0=250,temp1=1700,temp2=1700)
{TIM_SetCompare2(TIM2,temp0);delay_ms(500);
TIM_SetCompare3(TIM2,temp1);delay_ms(500);
TIM_SetCompare4(TIM2,temp2);delay_ms(500);
}
if(temp0=500,temp1=300,temp2=1800)
{TIM_SetCompare2(TIM2,temp0);delay_ms(500);
TIM_SetCompare3(TIM2,temp1);delay_ms(500);
TIM_SetCompare4(TIM2,temp2);delay_ms(500);
}
if(temp0=400,temp1=1500,temp2=1000)
{TIM_SetCompare2(TIM2,temp0);delay_ms(500);
TIM_SetCompare3(TIM2,temp1);delay_ms(500);
TIM_SetCompare4(TIM2,temp2);delay_ms(500);
}
if(temp0=1300,temp1=800,temp2=1200)
{TIM_SetCompare2(TIM2,temp0);delay_ms(500);
TIM_SetCompare3(TIM2,temp1);delay_ms(500);
TIM_SetCompare4(TIM2,temp2);delay_ms(500);
}
}
}
int main(void)
{
RCC_Configuration();
USART_int(115200);
printf(" config done...\r\n");
PWM_Config();
delay_ms(1000);
while(1)
{
PWM_TEST();
}
}
#ifdef USE_FULL_ASSERT
void assert_failed(uint8_t* file, uint32_t line)
{while (1)
{
}
}
#endif
#ifdef __GNUC__
#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */
PUTCHAR_PROTOTYPE
{
USART_SendData(EVAL_COM1, (uint8_t) ch);
/* Loop until the end of transmission */
while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_TC) == RESET)
{}
return ch;
}
#ifdef USE_FULL_ASSERT
etval None
*/
void assert_failed(uint8_t* file, uint32_t line)
{
while (1)
{
}
}
#endif
。 我尽量把屏幕和板一起拍进去了，在我的电脑上是超清视频是可以看清屏幕的，上传到优酷，缩水变成标清就不看太清楚了，所以就截了个图。还没有想到好点的方法，如果两个人，有一个人帮拍可能会好点。回头好好看看其他人怎么弄得。
STM32
MCU
通讯及无线技术
物联网技术
电子DIY
板卡试用
基础知识
软件与操作系统
我爱生活
小e食堂