114 lines
2.4 KiB
C
114 lines
2.4 KiB
C
/*
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* @Author: jiejie
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* @Github: https://github.com/jiejieTop
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* @Date: 2020-02-15 20:51:38
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* @LastEditTime : 2020-02-16 00:05:59
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* @Description: the code belongs to jiejie, please keep the author information and source code according to the license.
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*/
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#include "bsp_led.h"
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#include "bsp_dwt.h"
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void clk_produce(void)
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{
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SCL_LOW; // SCL=0
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delay_us(50);
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SCL_HIGH; // SCL=1
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delay_us(50);
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}
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void send_32bit_zero(void)
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{
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unsigned char i;
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SDA_LOW; // SDA=0
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for (i=0; i<32; i++)
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{
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clk_produce();
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}
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}
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uint8_t take_anti_code(uint8_t dat)
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{
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uint8_t tmp = 0;
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tmp=((~dat) & 0xC0)>>6;
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return tmp;
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}
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void send_data(uint32_t dx)
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{
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uint8_t i;
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for (i=0; i<32; i++)
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{
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if ((dx & 0x80000000) != 0)
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SDA_HIGH; // SDA=1;
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else
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SDA_LOW; // SDA=0;
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dx <<= 1;
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clk_produce();
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}
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}
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void data_deal_with_send(uint8_t r, uint8_t g, uint8_t b)
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{
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uint32_t dx = 0;
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dx |= (uint32_t)0x03 << 30; // The front of the two bits 1 is flag bits
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dx |= (uint32_t)take_anti_code(b) << 28;
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dx |= (uint32_t)take_anti_code(g) << 26;
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dx |= (uint32_t)take_anti_code(r) << 24;
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dx |= (uint32_t)b << 16;
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dx |= (uint32_t)g << 8;
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dx |= r;
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send_data(dx);
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}
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void rgb_led_init(void)
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{
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/*定义一个GPIO_InitTypeDef类型的结构体*/
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GPIO_InitTypeDef GPIO_InitStruct;
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RGB_LED_GPIO_CLK_ENABLE();
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/*选择要控制的GPIO引脚*/
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GPIO_InitStruct.Pin = RGB_LED_CLK_PIN;
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/*设置引脚的输出类型为推挽输出*/
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GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
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/*设置引脚为上拉模式*/
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GPIO_InitStruct.Pull = GPIO_PULLUP;
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/*设置引脚速率为高速 */
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
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/*调用库函数，使用上面配置的GPIO_InitStructure初始化GPIO*/
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HAL_GPIO_Init(RGB_LED_CLK_GPIO_PORT, &GPIO_InitStruct);
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/*选择要控制的GPIO引脚*/
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GPIO_InitStruct.Pin = RGB_LED_SDA_PIN;
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HAL_GPIO_Init(RGB_LED_SDA_GPIO_PORT, &GPIO_InitStruct);
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send_32bit_zero();
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data_deal_with_send(0,0,0);
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data_deal_with_send(0,0,0);
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}
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void rgb_led_control(uint8_t r, uint8_t g, uint8_t b)
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{
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send_32bit_zero();
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data_deal_with_send(r, g, b);
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data_deal_with_send(r, g, b);
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}
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/*********************************************END OF FILE**********************/
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