RISC-V/V203/usb/scope/firmware/structures.h

#ifndef STRUCTURES_DEFINE_H
#define STRUCTURES_DEFINE_H
#include <stdint.h>

enum ADC_CHANNELS : uint16_t {
  V1_VSENSE = 0,
  V2_VSENSE,

  ADC_MAXCHANNELS,    // interní konstanta - počet kanálů
};
typedef uint16_t SAMPLE;
union DATA_BLOCK {
  SAMPLE   channels [ADC_MAXCHANNELS];
  uint32_t common_data;
};
enum TRIGER_MODE : uint16_t {
  TRIGER_MODE_AUTO = 0,
  TRIGER_MODE_NORMAL,
  TRIGER_MODE_SINGLE
};
struct TrigerSettings {
  uint16_t     value;
  uint16_t     offset;
  TRIGER_MODE  mode;
  ADC_CHANNELS channel;
  bool         rising;
  explicit TrigerSettings () noexcept : value(0x80u), offset(100u), mode(TRIGER_MODE_AUTO), channel(V1_VSENSE), rising(false) {}
};
static_assert (sizeof(TrigerSettings) == 10, "TrigerSettings error");
enum VOLTAGE_SCALE {
  S100mV = 0b1100,  // 1:1  x10
  S200mV = 0b1110,  // 1:1  x5
  S500mV = 0b1101,  // 1:1  x2
  
  S1V    = 0b0000,  // 1:10 x10
  S2V    = 0b0010,  // 1:10 x5
  S5V    = 0b0001,  // 1:10 x2
  
  S10V   = 0b1000,  // 1:100x10
  S20V   = 0b1010,  // 1:100x5
  S50V   = 0b1001,  // 1:100x2
};
union ChannelVoltage {
  struct {
    uint8_t a : 4;
    uint8_t b : 4;
  };
  uint8_t value;
  char    common [1];
  explicit ChannelVoltage () noexcept : value (0u) {}
};
static_assert (sizeof(ChannelVoltage) == 1, "ChannelVoltage error");
union AllSettings {
  struct _x {
    TrigerSettings trg;
    uint16_t       tim;
    uint8_t        asc,bsc;
  } part;
  uint8_t common [sizeof (_x)];
  explicit AllSettings (const TrigerSettings & ts, const unsigned n, const ChannelVoltage chv) noexcept {
    part.trg.value   = ts.value;
    part.trg.offset  = ts.offset;
    part.trg.mode    = ts.mode;
    part.trg.channel = ts.channel;
    part.trg.rising  = ts.rising;
    part.tim = n;
    part.asc = chv.a;
    part.bsc = chv.b;
  }
};
static_assert (sizeof(AllSettings) == 14, "TrigerSettings error");
union SendHeader {
  struct s_bits {
    uint16_t pack_len : 15;
    uint16_t trig_flg :  1;
  } bits;
  uint16_t common;
};
static_assert (sizeof(SendHeader) == 2, "SendHeader error");
enum DESTINATION {
  DEST_CHA = 0,
  DEST_CHB,
  DEST_TRIG,
  DEST_BASE,
};

enum TRIGGER_CMD {
  TRIGGER_CMD_MODE = 0,
  TRIGGER_CMD_VALUE,
  TRIGGER_CMD_OFSET,
};
union TriggerModeUnion {
  struct s_bits {
    uint16_t mode    : 2;
    uint16_t channel : 1;
    uint16_t rissing : 1;
    uint16_t unused  : 12;
  } bits;
  uint16_t common;
};
static_assert (sizeof(TriggerModeUnion) == 2, "TriggerModeUnion error");

union RcvdHeader {
  struct s_bits {
    uint16_t cmd_value : 12;
    uint16_t cmd_type  :  2;
    uint16_t destinat  :  2;
  } bits;
  uint16_t common;
};
static_assert (sizeof(RcvdHeader) == 2, "RcvdHeader error");

enum MOVE_ITEMS {
  MOVE_VALUE = 0,
  MOVE_OFSET,
  MOVE_MARKERA,
  MOVE_MARKERB,
  TIME_ZOOM,
  OFSET_A,
  OFSET_B,
};
enum TIME_BASE_MODE {
  TIME_BASE_TRIGERED = 0,
  TIME_BASE_CONTINUOUS,
};
struct TimeBaseDescriptor {
  uint16_t       divider;
  uint16_t       presc;
  TIME_BASE_MODE mode;
};

#endif // STRUCTURES_DEFINE_H