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// Oscilloscope firmware, Roman Pavelka, 2011 |
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// Oscilloscope firmware, Roman Pavelka, 2011 |
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// written for atmega8 |
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// written for atmega8 |
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|
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#define F_CPU 16000000 |
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#define F_CPU 16000000 |
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#define BAUD 1000000 |
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#define BAUD 1000000 |
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//#define MYUBRR F_CPU/8/BAUD-1 |
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//#define MYUBRR F_CPU/8/BAUD-1 |
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#define MYUBRR 1 |
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#define MYUBRR 1 |
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#include "./libs/usart.h" |
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#include "./libs/usart.h" |
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#include "./libs/spi.h" |
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#include "./libs/spi.h" |
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|
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#include <avr/io.h> |
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#include <avr/io.h> |
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#include <avr/interrupt.h> |
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#include <avr/interrupt.h> |
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#include <util/delay.h> |
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#include <util/delay.h> |
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#include <inttypes.h> |
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#include <inttypes.h> |
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int main (void) { |
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int main (void) { |
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USART_Init(MYUBRR); |
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USART_Init(MYUBRR); |
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|
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DDRB = 0b00100100; //SCK, SS out |
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DDRB = 0b00100100; //SCK, SS out |
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PORTB = 0b00000000; // CONV low |
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PORTB = 0b00000000; // CONV low |
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|
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SPI_MasterInit(); |
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SPI_MasterInit(); |
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|
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while(1) |
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while(1) |
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{ |
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{ |
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PORTB |= 0b00000100; |
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PORTB |= 0b00000100; |
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_delay_us(4); |
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_delay_us(4); |
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PORTB &= 0b11111011; //one conversion |
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PORTB &= 0b11111011; //one conversion |
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|
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|
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USART_Transmit(SPI_MasterTransmit(0x0)); //Binary transfer |
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USART_Transmit(SPI_MasterTransmit(0x0)); //Binary transfer |
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USART_Transmit(SPI_MasterTransmit(0x0)); |
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USART_Transmit(SPI_MasterTransmit(0x0)); |
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_delay_us(4); |
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_delay_us(4); |
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} |
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} |
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return 0; |
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return 0; |
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} |
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} |
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