[Из песочницы] Аудио плеер на AVR

Осторожно, для инициализации использован кодогенератор. Есть возможность использования внутреннего ЦАП.

// I/O Registers definitions #include   // Declare your global variables here #define fSIZE 12000 int rAdr,wAdr,dn; char needdata; char fifo[fSIZE];  // System Clocks initialization void system_clocks_init(void) { unsigned char n,s;  // Optimize for speed #pragma optsize-  // Save interrupts enabled/disabled state s=SREG; // Disable interrupts #asm("cli")  // External 16000,000 kHz oscillator initialization // External Clock Source - Startup Time: 0.4-16 MHz Quartz Crystal - 16k CLK OSC.XOSCCTRL=OSC_FRQRANGE_12TO16_gc | OSC_XOSCSEL_XTAL_16KCLK_gc; // Enable the external oscillator/clock source OSC.CTRL|=OSC_XOSCEN_bm;  // System Clock prescaler A division factor: 1 // System Clock prescalers B & C division factors: B:1, C:1 // ClkPer4: 16000,000 kHz // ClkPer2: 16000,000 kHz // ClkPer:  16000,000 kHz // ClkCPU:  16000,000 kHz n=(CLK.PSCTRL & (~(CLK_PSADIV_gm | CLK_PSBCDIV1_bm | CLK_PSBCDIV0_bm))) | 	CLK_PSADIV_1_gc | CLK_PSBCDIV_1_1_gc; CCP=CCP_IOREG_gc; CLK.PSCTRL=n;  // Wait for the external oscillator to stabilize while ((OSC.STATUS & OSC_XOSCRDY_bm)==0);  // Select the system clock source: External Oscillator or Clock n=(CLK.CTRL & (~CLK_SCLKSEL_gm)) | CLK_SCLKSEL_XOSC_gc; CCP=CCP_IOREG_gc; CLK.CTRL=n;  // Disable the unused oscillators: 2 MHz, 32 MHz, internal 32 kHz, PLL OSC.CTRL&= ~(OSC_RC2MEN_bm | OSC_RC32MEN_bm | OSC_RC32KEN_bm | OSC_PLLEN_bm);  // ClkPer output disabled PORTCFG.CLKEVOUT&= ~(PORTCFG_CLKOUTSEL_gm | PORTCFG_CLKOUT_gm); // Restore interrupts enabled/disabled state SREG=s; // Restore optimization for size if needed #pragma optsize_default }  // Ports initialization void ports_init(void) { // PORTA initialization // OUT register PORTA.OUT=0x00; // Pin0: Input // Pin1: Input // Pin2: Input // Pin3: Input // Pin4: Input // Pin5: Input // Pin6: Input // Pin7: Input PORTA.DIR=0x00; // Pin0 Output/Pull configuration: Totempole/No // Pin0 Input/Sense configuration: Sense both edges // Pin0 Inverted: Off // Pin0 Slew Rate Limitation: Off PORTA.PIN0CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin1 Output/Pull configuration: Totempole/No // Pin1 Input/Sense configuration: Sense both edges // Pin1 Inverted: Off // Pin1 Slew Rate Limitation: Off PORTA.PIN1CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin2 Output/Pull configuration: Totempole/No // Pin2 Input/Sense configuration: Sense both edges // Pin2 Inverted: Off // Pin2 Slew Rate Limitation: Off PORTA.PIN2CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin3 Output/Pull configuration: Totempole/No // Pin3 Input/Sense configuration: Sense both edges // Pin3 Inverted: Off // Pin3 Slew Rate Limitation: Off PORTA.PIN3CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin4 Output/Pull configuration: Totempole/No // Pin4 Input/Sense configuration: Sense both edges // Pin4 Inverted: Off // Pin4 Slew Rate Limitation: Off PORTA.PIN4CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin5 Output/Pull configuration: Totempole/No // Pin5 Input/Sense configuration: Sense both edges // Pin5 Inverted: Off // Pin5 Slew Rate Limitation: Off PORTA.PIN5CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin6 Output/Pull configuration: Totempole/No // Pin6 Input/Sense configuration: Sense both edges // Pin6 Inverted: Off // Pin6 Slew Rate Limitation: Off PORTA.PIN6CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin7 Output/Pull configuration: Totempole/No // Pin7 Input/Sense configuration: Sense both edges // Pin7 Inverted: Off // Pin7 Slew Rate Limitation: Off PORTA.PIN7CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Interrupt 0 level: Disabled // Interrupt 1 level: Disabled PORTA.INTCTRL=(PORTA.INTCTRL & (~(PORT_INT1LVL_gm | PORT_INT0LVL_gm))) | 	PORT_INT1LVL_OFF_gc | PORT_INT0LVL_OFF_gc; // Pin0 Pin Change interrupt 0: Off // Pin1 Pin Change interrupt 0: Off // Pin2 Pin Change interrupt 0: Off // Pin3 Pin Change interrupt 0: Off // Pin4 Pin Change interrupt 0: Off // Pin5 Pin Change interrupt 0: Off // Pin6 Pin Change interrupt 0: Off // Pin7 Pin Change interrupt 0: Off PORTA.INT0MASK=0x00; // Pin0 Pin Change interrupt 1: Off // Pin1 Pin Change interrupt 1: Off // Pin2 Pin Change interrupt 1: Off // Pin3 Pin Change interrupt 1: Off // Pin4 Pin Change interrupt 1: Off // Pin5 Pin Change interrupt 1: Off // Pin6 Pin Change interrupt 1: Off // Pin7 Pin Change interrupt 1: Off PORTA.INT1MASK=0x00;  // PORTB initialization // OUT register PORTB.OUT=0x00; // Pin0: Input // Pin1: Input // Pin2: Input // Pin3: Input // Pin4: Input // Pin5: Input // Pin6: Input // Pin7: Input PORTB.DIR=0x00; // Pin0 Output/Pull configuration: Totempole/No // Pin0 Input/Sense configuration: Sense both edges // Pin0 Inverted: Off // Pin0 Slew Rate Limitation: Off PORTB.PIN0CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin1 Output/Pull configuration: Totempole/No // Pin1 Input/Sense configuration: Sense both edges // Pin1 Inverted: Off // Pin1 Slew Rate Limitation: Off PORTB.PIN1CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin2 Output/Pull configuration: Totempole/No // Pin2 Input/Sense configuration: Sense both edges // Pin2 Inverted: Off // Pin2 Slew Rate Limitation: Off PORTB.PIN2CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin3 Output/Pull configuration: Totempole/No // Pin3 Input/Sense configuration: Sense both edges // Pin3 Inverted: Off // Pin3 Slew Rate Limitation: Off PORTB.PIN3CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin4 Output/Pull configuration: Totempole/No // Pin4 Input/Sense configuration: Sense both edges // Pin4 Inverted: Off // Pin4 Slew Rate Limitation: Off PORTB.PIN4CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin5 Output/Pull configuration: Totempole/No // Pin5 Input/Sense configuration: Sense both edges // Pin5 Inverted: Off // Pin5 Slew Rate Limitation: Off PORTB.PIN5CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin6 Output/Pull configuration: Totempole/No // Pin6 Input/Sense configuration: Sense both edges // Pin6 Inverted: Off // Pin6 Slew Rate Limitation: Off PORTB.PIN6CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin7 Output/Pull configuration: Totempole/No // Pin7 Input/Sense configuration: Sense both edges // Pin7 Inverted: Off // Pin7 Slew Rate Limitation: Off PORTB.PIN7CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Interrupt 0 level: Disabled // Interrupt 1 level: Disabled PORTB.INTCTRL=(PORTB.INTCTRL & (~(PORT_INT1LVL_gm | PORT_INT0LVL_gm))) | 	PORT_INT1LVL_OFF_gc | PORT_INT0LVL_OFF_gc; // Pin0 Pin Change interrupt 0: Off // Pin1 Pin Change interrupt 0: Off // Pin2 Pin Change interrupt 0: Off // Pin3 Pin Change interrupt 0: Off // Pin4 Pin Change interrupt 0: Off // Pin5 Pin Change interrupt 0: Off // Pin6 Pin Change interrupt 0: Off // Pin7 Pin Change interrupt 0: Off PORTB.INT0MASK=0x00; // Pin0 Pin Change interrupt 1: Off // Pin1 Pin Change interrupt 1: Off // Pin2 Pin Change interrupt 1: Off // Pin3 Pin Change interrupt 1: Off // Pin4 Pin Change interrupt 1: Off // Pin5 Pin Change interrupt 1: Off // Pin6 Pin Change interrupt 1: Off // Pin7 Pin Change interrupt 1: Off PORTB.INT1MASK=0x00;  // PORTC initialization // OUT register PORTC.OUT=0x00; // Pin0: Input // Pin1: Input // Pin2: Input // Pin3: Input // Pin4: Input // Pin5: Input // Pin6: Input // Pin7: Input PORTC.DIR=0x00; // Pin0 Output/Pull configuration: Totempole/No // Pin0 Input/Sense configuration: Sense both edges // Pin0 Inverted: Off // Pin0 Slew Rate Limitation: Off PORTC.PIN0CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin1 Output/Pull configuration: Totempole/No // Pin1 Input/Sense configuration: Sense both edges // Pin1 Inverted: Off // Pin1 Slew Rate Limitation: Off PORTC.PIN1CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin2 Output/Pull configuration: Totempole/No // Pin2 Input/Sense configuration: Sense both edges // Pin2 Inverted: Off // Pin2 Slew Rate Limitation: Off PORTC.PIN2CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin3 Output/Pull configuration: Totempole/No // Pin3 Input/Sense configuration: Sense both edges // Pin3 Inverted: Off // Pin3 Slew Rate Limitation: Off PORTC.PIN3CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin4 Output/Pull configuration: Totempole/No // Pin4 Input/Sense configuration: Sense both edges // Pin4 Inverted: Off // Pin4 Slew Rate Limitation: Off PORTC.PIN4CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin5 Output/Pull configuration: Totempole/No // Pin5 Input/Sense configuration: Sense both edges // Pin5 Inverted: Off // Pin5 Slew Rate Limitation: Off PORTC.PIN5CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin6 Output/Pull configuration: Totempole/No // Pin6 Input/Sense configuration: Sense both edges // Pin6 Inverted: Off // Pin6 Slew Rate Limitation: Off PORTC.PIN6CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // Pin7 Output/Pull configuration: Totempole/No // Pin7 Input/Sense configuration: Sense both edges // Pin7 Inverted: Off // Pin7 Slew Rate Limitation: Off PORTC.PIN7CTRL=PORT_OPC_TOTEM_gc | PORT_ISC_BOTHEDGES_gc; // PORTC Peripheral Output Remapping // OC0A Output: Pin 0 // OC0B Output: Pin 1 // OC0C Output: Pin 2 // OC0D Output: Pin 3 // USART0 XCK: Pin 1 // USART0 RXD: Pin 2 // USART0 TXD: Pin 3 // SPI MOSI: Pin 5 // SPI SCK: Pin 7 PORTC.REMAP=(0<CTRLA=TC_CLKSEL_OFF_gc; // Issue a reset command ptc->CTRLFSET=TC_CMD_RESET_gc; }  // Timer/Counter TCC0 initialization void tcc0_init(void) { unsigned char s; unsigned char n;  // Note: The correct PORTC direction for the Compare Channels // outputs is configured in the ports_init function.  // Save interrupts enabled/disabled state s=SREG; // Disable interrupts #asm("cli")  // Disable and reset the timer/counter just to be sure tc0_disable(&TCC0); // Clock source: ClkPer/1 TCC0.CTRLA=TC_CLKSEL_DIV1_gc; // Mode: Normal Operation, Overflow Int./Event on TOP // Compare/Capture on channel A: Off // Compare/Capture on channel B: Off // Compare/Capture on channel C: Off // Compare/Capture on channel D: Off TCC0.CTRLB=(0<6000)            {             putchar_usartf0(0xFF);             needdata=1;            }    }    else    {     if (dn++>2000)     {     putchar_usartf0(0xFF);     dn=0;     }    } }      void main(void) { // Declare your local variables here unsigned char n;  // Interrupt system initialization // Optimize for speed #pragma optsize- // Make sure the interrupts are disabled #asm("cli") // Low level interrupt: Off // Round-robin scheduling for low level interrupt: Off // Medium level interrupt: Off // High level interrupt: On // The interrupt vectors will be placed at the start of the Application FLASH section n=(PMIC.CTRL & (~(PMIC_RREN_bm | PMIC_IVSEL_bm | PMIC_HILVLEN_bm | PMIC_MEDLVLEN_bm | PMIC_LOLVLEN_bm))) |     PMIC_HILVLEN_bm; CCP=CCP_IOREG_gc; PMIC.CTRL=n; // Set the default priority for round-robin scheduling PMIC.INTPRI=0x00; // Restore optimization for size if needed #pragma optsize_default  // System clocks initialization system_clocks_init();  // Ports initialization ports_init();  // Virtual Ports initialization vports_init();  // DACB initialization dacb_init();   // Timer/Counter TCC0 initialization tcc0_init();  // USARTF0 initialization usartf0_init();    // Globally enable interrupts #asm("sei") rAdr=0; wAdr=0; PORTD.OUT=0xFF;  needdata=0; while (1)       {         fifo[wAdr++]=getchar_usartf0();         if (fSIZE==wAdr) wAdr=0;       } } 

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using System.IO; using System.Text.RegularExpressions; using System.Globalization; using System.IO.Ports;  namespace bol {     public partial class Form1 : Form     {         public Form1()         {             InitializeComponent();         }         byte[] byData;         int k = 0;          private void Form1_Shown(object sender, EventArgs e)         {             string[] ports = SerialPort.GetPortNames();             comboBox1.Items.AddRange(SerialPort.GetPortNames());             if (comboBox1.Items.Count > -1)             {                 comboBox1.SelectedIndex = 0;             }          }          private void serialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)         {             if (serialPort1.IsOpen)                 {                 if (byData.Length - 2000 > k)                 {                     serialPort1.Write(byData, k, 2000);                     k += 2000;                 }             }         }          private void button2_Click(object sender, EventArgs e)         {             serialPort1.Close();             button1.Enabled = true;             try             {                 serialPort1.BaudRate = Convert.ToInt32(textBox1.Text);             }             catch             {                 MessageBox.Show("неа!!!!!!"); return;             }              if (openFileDialog1.ShowDialog() == System.Windows.Forms.DialogResult.OK)             {                 string fileNam = openFileDialog1.FileName;                 FileStream fs = new FileStream(fileNam, FileMode.OpenOrCreate, FileAccess.Read);                 int len = Convert.ToInt32(fs.Length);                 byData = new byte[len];   // массив байтов                 try                 {   // файловый поток, открывает файл (при отсутсвии создает) только для чтения                     fs.Read(byData, 44, len - 44 - 1);                     fs.Dispose(); // освобождаем ресурсы                                     }                 catch (IOException err)                 {                     MessageBox.Show(err.Message); return;                 }                 serialPort1.Open();                 k = 0;                 if (byData.Length - 2000 > k)                 {                     serialPort1.Write(byData, k, 2000);                     k += 2000;                 }             }         }           private void comboBox1_TextChanged(object sender, EventArgs e)         {             serialPort1.PortName = comboBox1.Text;         }          private void button3_Click(object sender, EventArgs e)         {             k = 0;         }          private void button1_Click_1(object sender, EventArgs e)         {             if (serialPort1.IsOpen)             {                 serialPort1.Close();             }             else serialPort1.Open();         }     } }