colorchord/embeddedstm32f303/main.c
2015-07-22 09:12:21 -04:00

105 lines
1.7 KiB
C

#include <stdint.h>
#include <stm32f30x_rcc.h>
#include <stm32f30x_gpio.h>
#include <stm32f30x_dbgmcu.h>
#include <stdio.h>
#include <math.h>
#include <systems.h>
#include <DFT32.h>
#include <embeddednf.h>
#include <embeddedout.h>
gpio freepin;
RCC_ClocksTypeDef RCC_Clocks;
volatile int adcer;
volatile int hit = 0;
#define CIRCBUFSIZE 256
volatile int last_samp_pos;
int16_t sampbuff[CIRCBUFSIZE];
volatile int samples;
void ADCCallback( uint16_t adcval )
{
sampbuff[last_samp_pos] = adcval;
last_samp_pos = ((last_samp_pos+1)%CIRCBUFSIZE);
samples++;
}
//Call this once we've stacked together one full colorchord frame.
void NewFrame()
{
uint8_t led_outs[NUM_LIN_LEDS*3];
int i;
HandleFrameInfo();
UpdateLinearLEDs();
SendSPI2812( ledOut, NUM_LIN_LEDS );
}
int main(void)
{
uint32_t i = 0;
RCC_GetClocksFreq( &RCC_Clocks );
ConfigureLED(); LED_OFF;
GPIO_InitTypeDef GPIO_InitStructure;
//Turn B10 (TX) on, so we can have something positive to bias the ADC with.
ConfigureGPIO( GetGPIOFromString( "PB10" ), INOUT_OUT | DEFAULT_ON );
/* SysTick end of count event each 10ms */
SysTick_Config( RCC_Clocks.HCLK_Frequency/100 ); /// 100);
float fv = RCC_Clocks.HCLK_Frequency/1000000.0;
InitSPI2812();
InitADC();
Init(); //Colorchord
// printf( "Operating at %.3fMHz\n", fv );
freepin = GetGPIOFromString( "PB11" );
ConfigureGPIO( freepin, INOUT_OUT | DEFAULT_ON );
int this_samp = 0;
int wf = 0;
LED_ON;
while(1)
{
if( this_samp != last_samp_pos )
{
GPIOOn( freepin );
PushSample32( sampbuff[this_samp] ); //Can't put in full volume.
this_samp = (this_samp+1)%CIRCBUFSIZE;
wf++;
if( wf == 128 )
{
NewFrame();
wf = 0;
}
GPIOOff( freepin );
}
}
}
void TimingDelay_Decrement()
{
LED_TOGGLE;
}