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32 lines
1.4 KiB
32 lines
1.4 KiB
5 years ago
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#ifndef AnalogBinLogger_h
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#define AnalogBinLogger_h
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const size_t BLOCK_SIZE = 64;
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//------------------------------------------------------------------------------
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// First block of file.
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const size_t PIN_NUM_DIM = BLOCK_SIZE - 3*sizeof(uint32_t) - 2*sizeof(uint8_t);
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struct metadata_t {
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uint32_t adcFrequency; // ADC clock frequency
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uint32_t cpuFrequency; // CPU clock frequency
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uint32_t sampleInterval; // Sample interval in CPU cycles.
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uint8_t recordEightBits; // Size of ADC values, nonzero for 8-bits.
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uint8_t pinCount; // Number of analog pins in a sample.
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uint8_t pinNumber[PIN_NUM_DIM]; // List of pin numbers in a sample.
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};
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//------------------------------------------------------------------------------
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// Data block for 8-bit ADC mode.
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const size_t DATA_DIM8 = (BLOCK_SIZE - 2*sizeof(uint16_t))/sizeof(uint8_t);
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struct block8_t {
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uint16_t count; // count of data values
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uint16_t overrun; // count of overruns since last block
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uint8_t data[DATA_DIM8];
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};
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//------------------------------------------------------------------------------
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// Data block for 10-bit ADC mode.
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const size_t DATA_DIM16 = (BLOCK_SIZE - 2*sizeof(uint16_t))/sizeof(uint16_t);
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struct block16_t {
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unsigned short count; // count of data values
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unsigned short overrun; // count of overruns since last block
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unsigned short data[DATA_DIM16];
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};
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#endif // AnalogBinLogger_h
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