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22 lines
369 B
C++
22 lines
369 B
C++
#ifndef _SD_CONTROL_H_
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#define _SD_CONTROL_H_
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#define SPI_BLOCKOUT_PERIOD 20000UL
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class SDControl {
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public:
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SDControl() { }
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static void setup();
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static void takeBusControl();
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static void relinquishBusControl();
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static bool canWeTakeBus();
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private:
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static volatile long _spiBlockoutTime;
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static bool _weTookBus;
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};
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extern SDControl sdcontrol;
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#endif
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