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sense_binary_cali copy 2.cpp
Go to the documentation of this file.
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// #include <ADS126X.h>
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// #include <SPI.h>
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// #include <Arduino.h>
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// #include "board_pins.h"
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// #include "adcs.h"
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// // 1 = ASCII voltages for the Python calibration script
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// // 0 = packed binary records (original behavior)
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// #define TEXT_OUTPUT 0
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// #define PT_NUM_START 0
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// #define NUM_PTS 10
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// // --- Buffer settings ---
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// static const size_t PKT_MAX = 1000; // packet size in bytes
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// static const uint32_t FLUSH_MS = 10; // flush interval in ms
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// static uint8_t pktA[PKT_MAX];
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// static uint8_t pktB[PKT_MAX];
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// static uint8_t* active = pktA;
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// static uint8_t* standby = pktB;
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// static size_t used = 0;
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// static uint32_t lastFlushMs = 0;
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// inline void flushPacketIfNeeded(bool force);
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// ADS126X& adc = adcs::device();
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// int pos_pin = 0; // AIN0
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// int neg_pin = 0xA; // AINCOM
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// #pragma pack(push, 1)
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// struct SampleRecord {
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// uint32_t t_us;
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// uint8_t channel;
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// int32_t volt_reader; // Raw ADC code (signed)
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// float voltage; // Volts
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// uint32_t read_time_us;
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// float samples_per_second;
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// uint32_t sent_us;
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// };
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// #pragma pack(pop)
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// void setup() {
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// Serial.begin(115200);
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// SPI.begin(SCLK, MISO, MOSI, CS);
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// if (!adcs::init()) {
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// while (1) {delay(1000);}
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// }
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// if (!adcs::configure()) {
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// while (1) {delay(1000);}
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// }
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// adc.startADC1();
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// }
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// void loop() {
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// float voltages[NUM_PTS];
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// for (uint8_t ch = 0; ch < NUM_PTS; ch++) {
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// long raw_wase = adc.readADC1(ch, neg_pin);
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// // Wait until DRDY is low
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// for (int j = 0; j < 4; j++) {
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// while (digitalRead(DRDY_PIN) == HIGH) {
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// // wait
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// }
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// }
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// uint32_t t_start = micros();
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// long raw = adc.readADC1(ch, neg_pin);
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// uint32_t read_time = micros() - t_start;
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// // Convert to volts. Signed 32-bit full-scale assumed, Vref = 2.5 V
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// float volts = (float)raw * 2.5f / 2147483648.0f;
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// voltages[ch] = volts;
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// if (!TEXT_OUTPUT) {
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// float sps = (read_time > 0) ? (1000000.0f / (float)read_time) : 0.0f;
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// SampleRecord rec;
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// rec.t_us = t_start;
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// rec.channel = ch;
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// rec.volt_reader = (int32_t)raw;
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// rec.voltage = volts;
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// rec.read_time_us = read_time;
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// rec.samples_per_second = sps;
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// rec.sent_us = 0;
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// // Serial.write((uint8_t *)&rec, sizeof(rec));
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// // Buffer packet
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// // if this record won’t fit, flush first
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// if (used + sizeof(rec) > PKT_MAX) {
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// flushPacketIfNeeded(true);
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// }
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// // copy record into buffer
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// memcpy(active + used, &rec, sizeof(rec));
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// used += sizeof(rec);
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// // flush periodically (time-based)
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// flushPacketIfNeeded(false);
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// }
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// }
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// if (TEXT_OUTPUT) {
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// for (int i = 0; i < NUM_PTS; i++) {
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// Serial.print(voltages[i], 6);
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// if (i < NUM_PTS - 1) Serial.print(" ");
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// }
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// Serial.print("\r\n"); // CRLF as expected by the Python script
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// }
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// }
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// inline void flushPacketIfNeeded(bool force = false) {
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// uint32_t now = millis();
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// if (force || (used > 0 && (now - lastFlushMs >= FLUSH_MS))) {
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// uint32_t send_ts = micros();
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// if (used > 0) {
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// size_t count = used / sizeof(SampleRecord);
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// SampleRecord* recs = reinterpret_cast<SampleRecord*>(active);
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// for (size_t i = 0; i < count; ++i) {
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// recs[i].sent_us = send_ts;
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// }
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// }
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// Serial.write(active, used);
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// Serial.println(); // optional delimiter
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// uint8_t* tmp = active;
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// active = standby;
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// standby = tmp;
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// used = 0;
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// lastFlushMs = now;
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// }
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// }
firmware
ADC_Testing
Noise_Characterization
test
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sense_binary_cali copy 2.cpp
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