neopixel_f103_mvp/App/App.cpp
2018-12-16 18:36:42 +01:00

62 lines
1.2 KiB
C++

/*
* App.cpp
*
* Created on: Dec 16, 2018
* Author: abody
*/
#include "main.h"
#include "stm32f1xx_hal.h"
#include "dma.h"
#include "spi.h"
#include "gpio.h"
#include <string.h>
#include "Pixel.h"
#include "LedBuffers.h"
#include "Sparkle.h"
void convert(uint8_t *src, uint8_t *dst, uint16_t size)
{
static uint8_t const bits[4] = { 0b10001000, 0b10001110, 0b11101000, 0b11101110 };
while(size--) {
uint8_t byte=*src++;
uint8_t duo = 3;
do {
uint8_t mask = 3 << (duo<<1);
*dst++ = bits[(byte & (mask))>>(duo<<1)];
} while(duo--);
}
}
extern "C" void App()
{
g_ledBits[sizeof(g_ledBits)-1] = 0;
memset(g_pixels, 0, sizeof(g_pixels));
while(1)
{
Sparkle s;
Pixel_t color = {0xff, 0xff, 0xff};
Pixel_t fadeSpeed = {1,2,3};
for(uint16_t idx=0; idx < NUMPIXELS; idx++)
{
s.Start(&g_pixels[idx], color, fadeSpeed);
convert((uint8_t*)g_pixels, g_ledBits, sizeof(g_pixels));
HAL_SPI_Transmit_DMA(&hspi1, g_ledBits, sizeof(g_ledBits));
while(!g_done);
HAL_Delay(1);
do {
s.Step();
convert((uint8_t*)g_pixels, g_ledBits, sizeof(g_pixels));
HAL_SPI_Transmit_DMA(&hspi1, g_ledBits, sizeof(g_ledBits));
while(!g_done);
HAL_Delay(1);
} while( static_cast<Pixel_t*>( s ));
}
}
}