repo2/firmware_5200/native/spi.c @ 189
| 179 | markw | #include "spi.h"
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#include "integer.h"
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#include <stdio.h>
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int spi_slow; // 1 is slow
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int spi_chip_select_n; // 0 is selected
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int display;
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// access routines
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void setSpiFast()
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{
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fprintf(stderr,"SPI:Fast\n");
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}
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void setSpiSlow()
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{
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fprintf(stderr,"SPI:Slow\n");
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}
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void set_spi_clock_freq() // avr handles spi clock?
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{
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setSpiFast();
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}
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void spiInit()
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{
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fprintf(stderr,"SPI:Init Slow,deselect\n");
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}
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void mmcChipSelect(int select)
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{
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spi_chip_select_n = !select;
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fprintf(stderr,"SPI:%s\n",select? "Select":"deselect");
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}
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u08 spiTransferByte(u08 data)
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{
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fprintf(stderr,"SPI:Send:%02x\n",data);
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return 0xff; // TODO...
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}
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u08 spiTransferFF()
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{
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return spiTransferByte(0xFF);
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}
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void spiReceiveData(u08 * from, u08 * to)
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{
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while (from!=to)
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{
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*from = spiTransferFF();
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++from;
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}
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}
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