mirror of
https://github.com/ADElectronics/RTL00_WEB_VS.git
synced 2024-11-22 07:34:16 +00:00
69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
#ifndef _WS2812_H_
|
|
#define _WS2812_H_
|
|
|
|
#include "FreeRTOS.h"
|
|
#include "task.h"
|
|
#include "event_groups.h"
|
|
#include <spi_api.h>
|
|
#include <spi_ex_api.h>
|
|
#include <autoconf.h>
|
|
#include <platform_stdlib.h>
|
|
#include "semphr.h"
|
|
#include "event_groups.h"
|
|
|
|
|
|
#define WS2812_LEDS_MAX 500
|
|
#define WS2812_RESET_LEN (50 / 2)
|
|
#define WS2812_DMABUF_LEN(x) ((x) * 3 * 4 + WS2812_RESET_LEN)
|
|
|
|
#define WS2812_SPI_FREQ 3200000 // и делённое на 4 (4 бита SPI за 1 бит WS8212) = в итоге 800кГц
|
|
#define WS2812_SPI_MOSI PC_2 // SPI0
|
|
#define WS2812_SPI_MISO NC//PC_3
|
|
#define WS2812_SPI_SCLK NC//PC_1
|
|
#define WS2812_SPI_CS NC//PC_0
|
|
|
|
// Events to signal completion of DMA transfer
|
|
#define BIT_START (1 << 0)
|
|
#define BIT_DONE (1 << 1)
|
|
|
|
// посылается 2 бита протокола WS2812 за один байт SPI, один бит WS2812 за 4 бита SPI.
|
|
#define WS2812_BITS_00 0x88
|
|
#define WS2812_BITS_01 0x8e
|
|
#define WS2812_BITS_10 0xe8
|
|
#define WS2812_BITS_11 0xee
|
|
|
|
typedef struct
|
|
{
|
|
uint8_t R;
|
|
uint8_t G;
|
|
uint8_t B;
|
|
} WS2812_RGB_t;
|
|
|
|
typedef struct
|
|
{
|
|
uint8_t HUE;
|
|
uint8_t Sat;
|
|
uint8_t Value;
|
|
} WS2812_HSV_t;
|
|
|
|
typedef struct
|
|
{
|
|
spi_t spi_master;
|
|
EventGroupHandle_t *events;
|
|
SemaphoreHandle_t *mutex;
|
|
uint8_t *dma_buff;
|
|
size_t buff_len;
|
|
uint16_t strip_len;
|
|
} WS2812_t;
|
|
|
|
WS2812_t *WS2812_Init(uint16_t len);
|
|
int32_t WS2812_SetLen(WS2812_t *cfg, uint16_t len);
|
|
int32_t WS2812_DeInit(WS2812_t *cfg);
|
|
int32_t WS2812_Update(WS2812_t *cfg, WS2812_HSV_t hsv[], uint32_t len, uint16_t delay);
|
|
|
|
#define min(a,b) ((a) < (b) ? (a) : (b))
|
|
#define max(a,b) ((a) > (b) ? (a) : (b))
|
|
#define scale_up(x) ((x) << 8)
|
|
#define scale_down(x) ((x) >> 8)
|
|
|
|
#endif // _WS2812_H_
|