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