Rev | Author | Line No. | Line |
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2116 | paro | 1 | #include "spi.h" |
2 | |||
3 | #include <avr/io.h> |
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4 | |||
5 | void SPI_MasterInit(void) |
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6 | { |
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7 | /* Enable SPI, Master, set clock rate fck/16, SCK high when idle, sample on rising */ |
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8 | // SPSR|= 0b00000001; |
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9 | SPCR = 0b01011101; |
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10 | } |
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11 | |||
12 | unsigned char SPI_MasterTransmit(unsigned char cData) { |
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13 | /* Start transmission */ |
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14 | SPDR = cData; |
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15 | |||
16 | /* Wait for transmission complete */ |
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17 | while(!(SPSR & (1<<SPIF))) |
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18 | ; |
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19 | return SPDR; |
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20 | } |