First Commit

libraries/SdFat/examples/AvrAdcLogger/AvrAdcLogger.h

@@ -0,0 +1,33 @@
+#ifndef AnalogBinLogger_h
+#define AnalogBinLogger_h
+const size_t BLOCK_SIZE = 64;
+//------------------------------------------------------------------------------
+// First block of file.
+const size_t PIN_NUM_DIM =
+    BLOCK_SIZE - 3 * sizeof(uint32_t) - 2 * sizeof(uint8_t);
+struct metadata_t {
+  uint32_t adcFrequency;           // ADC clock frequency
+  uint32_t cpuFrequency;           // CPU clock frequency
+  uint32_t sampleInterval;         // Sample interval in CPU cycles.
+  uint8_t recordEightBits;         // Size of ADC values, nonzero for 8-bits.
+  uint8_t pinCount;                // Number of analog pins in a sample.
+  uint8_t pinNumber[PIN_NUM_DIM];  // List of pin numbers in a sample.
+};
+//------------------------------------------------------------------------------
+// Data block for 8-bit ADC mode.
+const size_t DATA_DIM8 = (BLOCK_SIZE - 2 * sizeof(uint16_t)) / sizeof(uint8_t);
+struct block8_t {
+  uint16_t count;    // count of data values
+  uint16_t overrun;  // count of overruns since last block
+  uint8_t data[DATA_DIM8];
+};
+//------------------------------------------------------------------------------
+// Data block for 10-bit ADC mode.
+const size_t DATA_DIM16 =
+    (BLOCK_SIZE - 2 * sizeof(uint16_t)) / sizeof(uint16_t);
+struct block16_t {
+  unsigned short count;    // count of data values
+  unsigned short overrun;  // count of overruns since last block
+  unsigned short data[DATA_DIM16];
+};
+#endif  // AnalogBinLogger_h