void send_Data(uint32_t rgb) { uint8_t r = (rgb&0xff0000)>>16; uint8_t g = (rgb&0x00ff00)>>8; uint8_t b = (rgb&0xff); for(uint16_t i=0;i<8;i++){ LED_BYTE_Buffer[i] = (0x80&g)>0?TIMING_ONE:TIMING_ZERO;g <<= 1; } for(uint16_t i=0;i<8;i++){ LED_BYTE_Buffer[8 + i] = (0x80&r)>0?TIMING_ONE:TIMING_ZERO;r <<= 1; } for(uint16_t i=0;i<8;i++){ LED_BYTE_Buffer[16 + i] = (0x80&b)>0?TIMING_ONE:TIMING_ZERO;b <<= 1; } DMA_SetCurrDataCounter(DMA1_Channel2, 24); // load number of bytes to be transferred DMA_Cmd(DMA1_Channel2, ENABLE); // enable DMA channel 6 TIM_Cmd(TIM2, ENABLE); // enable Timer 3 while(!DMA_GetFlagStatus(DMA1_FLAG_TC2)) ; // wait until transfer complete TIM_Cmd(TIM2, DISABLE); // disable Timer 3 DMA_Cmd(DMA1_Channel2, DISABLE); // disable DMA channel 6 DMA_ClearFlag(DMA1_FLAG_TC2); // clear DMA1 Channel 6 transfer complete flag }
时间: 2024-04-08 10:31:52 浏览: 17
这是一个函数 `send_Data`,它接收一个32位的RGB值作为参数,并将其发送给LED灯。
函数中的代码将RGB值分解为红色(r)、绿色(g)和蓝色(b)三个分量。然后,使用移位运算和位掩码操作来逐位提取每个颜色分量的值。
接下来,通过循环将每个颜色分量的每个位(共8位)写入 `LED_BYTE_Buffer` 数组中。根据位的值(0或1),将相应的 `TIMING_ONE` 或 `TIMING_ZERO` 值写入数组。
然后,根据需要配置DMA(直接内存访问)和定时器,以启动数据传输。在传输完成之前,程序会等待传输完成标志。
最后,禁用定时器和DMA,并清除传输完成标志。
请注意,这段代码只展示了将RGB值转换为LED字节缓冲区数据的部分逻辑,并没有完整的上下文。在实际使用中,您可能还需要配置和初始化相关硬件和参数。
如果您有任何进一步的问题,请随时提问。
相关问题
stm32f103c8t6利用AD8232的心电信号通过ST778显示心率的程序
以下是一个基于STM32F103C8T6和AD8232的心电信号测量和ST7789显示心率的程序示例。
首先,需要连接AD8232到STM32F103C8T6板上,并连接ST7789显示屏。AD8232连接到ADC1通道0,ST7789连接到SPI1。
```c
#include "stm32f10x.h"
#include "stm32f10x_adc.h"
#include "stm32f10x_gpio.h"
#include "stm32f10x_rcc.h"
#include "stm32f10x_spi.h"
#define SPI1_CS_PIN GPIO_Pin_4
#define SPI1_CS_PORT GPIOA
#define SPI1_DC_PIN GPIO_Pin_5
#define SPI1_DC_PORT GPIOA
void SPI1_Init(void);
void SPI1_SendData(uint8_t data);
void SPI1_SendCommand(uint8_t cmd);
void SPI1_SendData16(uint16_t data);
void SPI1_SendCommand16(uint16_t cmd);
void ST7789_Init(void);
void ST7789_SetRotation(uint8_t m);
void ST7789_DrawPixel(uint16_t x, uint16_t y, uint16_t color);
void ST7789_FillRect(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color);
void ADC1_Init(void);
uint16_t ADC1_ReadChannel(uint8_t channel);
int main(void)
{
uint16_t heart_rate = 0;
char buffer[5];
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_ADC1, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.GPIO_Pin = SPI1_CS_PIN;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(SPI1_CS_PORT, &GPIO_InitStruct);
GPIO_InitStruct.GPIO_Pin = SPI1_DC_PIN;
GPIO_Init(SPI1_DC_PORT, &GPIO_InitStruct);
SPI1_Init();
ST7789_Init();
ADC1_Init();
while (1)
{
heart_rate = ADC1_ReadChannel(0);
sprintf(buffer, "%d", heart_rate);
ST7789_FillRect(0, 0, 240, 240, 0xFFFF);
ST7789_SetRotation(1);
ST7789_DrawString(0, 0, buffer, 0x0000, 0xFFFF, 2);
Delay(1000);
}
}
void SPI1_Init(void)
{
SPI_InitTypeDef SPI_InitStruct;
SPI_InitStruct.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStruct.SPI_Mode = SPI_Mode_Master;
SPI_InitStruct.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStruct.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStruct.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStruct.SPI_NSS = SPI_NSS_Soft;
SPI_InitStruct.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_2;
SPI_InitStruct.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_Init(SPI1, &SPI_InitStruct);
SPI_Cmd(SPI1, ENABLE);
}
void SPI1_SendData(uint8_t data)
{
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == RESET)
;
SPI_I2S_SendData(SPI1, data);
}
void SPI1_SendCommand(uint8_t cmd)
{
GPIO_ResetBits(SPI1_DC_PORT, SPI1_DC_PIN);
GPIO_ResetBits(SPI1_CS_PORT, SPI1_CS_PIN);
SPI1_SendData(cmd);
GPIO_SetBits(SPI1_CS_PORT, SPI1_CS_PIN);
}
void SPI1_SendData16(uint16_t data)
{
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == RESET)
;
SPI_I2S_SendData(SPI1, (data >> 8) & 0xFF);
while (SPI_I2S_GetFlagStatus(SPI1, SPI_I2S_FLAG_TXE) == RESET)
;
SPI_I2S_SendData(SPI1, data & 0xFF);
}
void SPI1_SendCommand16(uint16_t cmd)
{
GPIO_ResetBits(SPI1_DC_PORT, SPI1_DC_PIN);
GPIO_ResetBits(SPI1_CS_PORT, SPI1_CS_PIN);
SPI1_SendData16(cmd);
GPIO_SetBits(SPI1_CS_PORT, SPI1_CS_PIN);
}
void ST7789_Init(void)
{
SPI1_SendCommand(ST7789_SWRESET);
Delay(150);
SPI1_SendCommand(ST7789_SLPOUT);
Delay(500);
SPI1_SendCommand(ST7789_COLMOD);
SPI1_SendData(0x55);
SPI1_SendCommand(ST7789_MADCTL);
SPI1_SendData(0x00);
SPI1_SendCommand(ST7789_CASET);
SPI1_SendData16(0x0000);
SPI1_SendData16(0x00EF);
SPI1_SendCommand(ST7789_RASET);
SPI1_SendData16(0x0000);
SPI1_SendData16(0x013F);
SPI1_SendCommand(ST7789_INVON);
Delay(10);
SPI1_SendCommand(ST7789_NORON);
Delay(10);
SPI1_SendCommand(ST7789_DISPON);
Delay(500);
}
void ST7789_SetRotation(uint8_t m)
{
SPI1_SendCommand(ST7789_MADCTL);
uint8_t data = 0;
switch (m)
{
case 0:
data = ST7789_MADCTL_MX | ST7789_MADCTL_MY | ST7789_MADCTL_RGB;
break;
case 1:
data = ST7789_MADCTL_MY | ST7789_MADCTL_MV | ST7789_MADCTL_RGB;
break;
case 2:
data = ST7789_MADCTL_RGB;
break;
case 3:
data = ST7789_MADCTL_MX | ST7789_MADCTL_MV | ST7789_MADCTL_RGB;
break;
}
SPI1_SendData(data);
}
void ST7789_DrawPixel(uint16_t x, uint16_t y, uint16_t color)
{
SPI1_SendCommand(ST7789_CASET);
SPI1_SendData16(x);
SPI1_SendData16(x);
SPI1_SendCommand(ST7789_RASET);
SPI1_SendData16(y);
SPI1_SendData16(y);
SPI1_SendCommand(ST7789_RAMWR);
SPI1_SendData16(color);
}
void ST7789_FillRect(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)
{
uint16_t width = x2 - x1 + 1;
uint16_t height = y2 - y1 + 1;
uint16_t size = width * height;
SPI1_SendCommand(ST7789_CASET);
SPI1_SendData16(x1);
SPI1_SendData16(x2);
SPI1_SendCommand(ST7789_RASET);
SPI1_SendData16(y1);
SPI1_SendData16(y2);
SPI1_SendCommand(ST7789_RAMWR);
GPIO_SetBits(SPI1_DC_PORT, SPI1_DC_PIN);
GPIO_ResetBits(SPI1_CS_PORT, SPI1_CS_PIN);
for (uint16_t i = 0; i < size; i++)
{
SPI1_SendData16(color);
}
GPIO_SetBits(SPI1_CS_PORT, SPI1_CS_PIN);
}
void ADC1_Init(void)
{
ADC_InitTypeDef ADC_InitStruct;
ADC_StructInit(&ADC_InitStruct);
ADC_InitStruct.ADC_Mode = ADC_Mode_Independent;
ADC_InitStruct.ADC_ScanConvMode = DISABLE;
ADC_InitStruct.ADC_ContinuousConvMode = ENABLE;
ADC_InitStruct.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
ADC_InitStruct.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStruct.ADC_NbrOfChannel = 1;
ADC_Init(ADC1, &ADC_InitStruct);
ADC_Cmd(ADC1, ENABLE);
ADC_ResetCalibration(ADC1);
while (ADC_GetResetCalibrationStatus(ADC1))
;
ADC_StartCalibration(ADC1);
while (ADC_GetCalibrationStatus(ADC1))
;
ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_55Cycles5);
ADC_SoftwareStartConvCmd(ADC1, ENABLE);
}
uint16_t ADC1_ReadChannel(uint8_t channel)
{
ADC_RegularChannelConfig(ADC1, channel, 1, ADC_SampleTime_55Cycles5);
ADC_SoftwareStartConvCmd(ADC1, ENABLE);
while (!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC))
;
return ADC_GetConversionValue(ADC1);
}
void Delay(uint32_t nCount)
{
for (uint32_t i = 0; i < nCount; i++)
;
}
```
这个程序会读取ADC1通道0的值,并将其转换为心率。然后,使用ST7789显示屏显示心率。可以根据需要调整显示屏的位置和大小。
GD32F130F8P6写个驱动WS2812B流水灯效果的程序
下面是一个简单的流水灯效果程序,使用GD32F130F8P6驱动WS2812B:
```c
#include "gd32f1x0.h"
#define LED_NUM 8 // WS2812B个数
#define LED_BUF_SIZE (LED_NUM * 24) // WS2812B数据总长度,每个WS2812B需要24个bit
// RGB颜色定义
#define COLOR_RED 0xFF0000
#define COLOR_GREEN 0x00FF00
#define COLOR_BLUE 0x0000FF
// WS2812B数据缓存
static uint8_t led_buf[LED_BUF_SIZE];
/**
* @brief 向WS2812B发送一个位
* @param bit: 要发送的位,0或1
* @retval None
*/
static void ws2812b_send_bit(uint8_t bit)
{
if (bit) {
GPIO_BOP(GPIOB) = GPIO_PIN_13;
__ASM volatile("nop");
__ASM volatile("nop");
__ASM volatile("nop");
GPIO_BC(GPIOB) = GPIO_PIN_13;
__ASM volatile("nop");
__ASM volatile("nop");
} else {
GPIO_BOP(GPIOB) = GPIO_PIN_13;
__ASM volatile("nop");
GPIO_BC(GPIOB) = GPIO_PIN_13;
__ASM volatile("nop");
__ASM volatile("nop");
}
}
/**
* @brief 向WS2812B发送一个字节
* @param byte: 要发送的字节
* @retval None
*/
static void ws2812b_send_byte(uint8_t byte)
{
for (int i = 0; i < 8; i++) {
ws2812b_send_bit(byte & 0x80);
byte <<= 1;
}
}
/**
* @brief 向WS2812B发送一个RGB颜色值
* @param color: RGB颜色值
* @retval None
*/
static void ws2812b_send_color(uint32_t color)
{
ws2812b_send_byte(color >> 16);
ws2812b_send_byte(color >> 8);
ws2812b_send_byte(color);
}
/**
* @brief 清空WS2812B数据缓存
* @param None
* @retval None
*/
static void ws2812b_clear(void)
{
for (int i = 0; i < LED_BUF_SIZE; i++) {
led_buf[i] = 0;
}
}
/**
* @brief 设置WS2812B的颜色
* @param index: WS2812B的编号,从0开始
* @param color: RGB颜色值
* @retval None
*/
static void ws2812b_set_color(uint8_t index, uint32_t color)
{
if (index >= LED_NUM) {
return;
}
index *= 24;
for (int i = 0; i < 24; i += 8) {
led_buf[i + index] = (color & 0xFF0000) >> 16;
led_buf[i + index + 1] = (color & 0x00FF00) >> 8;
led_buf[i + index + 2] = color & 0x0000FF;
color >>= 8;
}
}
/**
* @brief 发送WS2812B数据
* @param None
* @retval None
*/
static void ws2812b_send_data(void)
{
__disable_irq();
for (int i = 0; i < LED_BUF_SIZE; i++) {
for (int j = 0; j < 8; j++) {
if (led_buf[i] & (1 << (7 - j))) {
GPIO_BOP(GPIOB) = GPIO_PIN_13;
__ASM volatile("nop");
__ASM volatile("nop");
__ASM volatile("nop");
GPIO_BC(GPIOB) = GPIO_PIN_13;
__ASM volatile("nop");
__ASM volatile("nop");
} else {
GPIO_BOP(GPIOB) = GPIO_PIN_13;
__ASM volatile("nop");
GPIO_BC(GPIOB) = GPIO_PIN_13;
__ASM volatile("nop");
__ASM volatile("nop");
}
}
}
__enable_irq();
}
int main(void)
{
// 初始化WS2812B数据缓存
ws2812b_clear();
ws2812b_set_color(0, COLOR_RED);
ws2812b_set_color(1, COLOR_GREEN);
ws2812b_set_color(2, COLOR_BLUE);
RCC_AHBPeriphClock_Enable(RCC_AHBPERIPH_GPIOB, ENABLE);
// 配置GPIOB13为推挽输出,用于控制WS2812B
GPIO_InitPara GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_PIN_13;
GPIO_InitStructure.GPIO_Mode = GPIO_MODE_OUT_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_SPEED_50MHZ;
GPIO_Init(GPIOB, &GPIO_InitStructure);
// 发送WS2812B数据
ws2812b_send_data();
while (1) {
// 简单的流水灯效果
for (int i = 0; i < LED_NUM; i++) {
ws2812b_clear();
ws2812b_set_color(i, COLOR_RED);
ws2812b_send_data();
delay_ms(100);
}
}
}
```
这个程序使用了一个静态数组led_buf来存储WS2812B的颜色数据,每个WS2812B需要3个字节,即RGB颜色值,因此数组长度为LED_NUM * 24。程序中的ws2812b_send_bit、ws2812b_send_byte和ws2812b_send_color函数分别用于向WS2812B发送1个bit、1个字节和1个RGB颜色值。ws2812b_clear函数用于清空led_buf数组,ws2812b_set_color函数用于设置指定WS2812B的颜色。ws2812b_send_data函数用于将led_buf数组中的数据发送给WS2812B。
程序中的主要逻辑是一个简单的流水灯效果,每隔100ms将红色的LED从一个WS2812B移动到下一个。你可以根据自己的需要修改流水灯效果的实现方式。