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- #include "mbed.h"
- #include "main.h"
- #include "SWO.h"
- #include "pca9685.h"
- #include "tusb322.h"
- #include "ds3231.h"
- #include "ioc.h"
- #include "animation.h"
- I2C i2c(PA_10, PA_9);
- // SWO_Channel swo("swo");
- bool RtcTick, RefreshTick, RngTick;
- bool StartupFlag, RuntimeFlag;
- typedef struct {
- char DigitA;
- ushort DigitAValue;
- char DigitB;
- ushort DigitBValue;
- bool DigitBActive;
- bool Updated;
- bool RefreshActive;
- } TUBE;
- TUBE Display[NUM_TUBES] = {0}; // Active per-tube digit setting
- int DotValue;
- bool DotUpdated = false;;
- bool DotIncrement = false;
- Ticker StartupUpdateTicker, RuntimeUpdateTicker, RngUpdateTicker;
- int StartupTickerIter, RuntimeTickerIter, RngTickerIter;
- void RtcTickCallback(void) {
- RtcTick = true;
- }
- void RefreshTickCallback(void) {
- RefreshTick = true;
- }
- void RngTickCallback(void) {
- RngTick = true;
- }
- void StartupTickerUpdate(void) {
- for (int i = 0; i < NUM_TUBES; i++) {
- Display[i].DigitAValue = (i == 0 && Display[i].DigitA == 0) ? 0 : Display[i].DigitAValue + FADE_TICK_STEP;
- Display[i].Updated = true;
- }
- DotValue += FADE_TICK_STEP;
- DotUpdated = true;
- if (--StartupTickerIter == 0) {
- StartupUpdateTicker.detach();
- for (int i = 0; i < NUM_TUBES; i++) {
- Display[i].DigitBActive = !Display[i].DigitBActive;
- }
- // Switch to runtime mode once startup sequence has completed
- RuntimeFlag = true;
- }
- }
- void RuntimeTickerUpdate(void) {
- for (int i = 0; i < NUM_TUBES; i++) {
- if(!Display[i].RefreshActive) {
- if (Display[i].DigitA != Display[i].DigitB) {
- if (Display[i].DigitBActive) {
- Display[i].DigitAValue -= FADE_TICK_STEP;
- Display[i].DigitBValue = (i == 0 && Display[i].DigitB == 0) ? 0 : Display[i].DigitBValue + FADE_TICK_STEP;
- } else {
- Display[i].DigitBValue -= FADE_TICK_STEP;
- Display[i].DigitAValue = (i == 0 && Display[i].DigitA == 0) ? 0 : Display[i].DigitAValue + FADE_TICK_STEP;
- }
- Display[i].Updated = true;
- }
- }
- }
- DotValue = DotIncrement ? DotValue + FADE_TICK_STEP: DotValue - FADE_TICK_STEP;
- DotUpdated = true;
- if (--RuntimeTickerIter == 0) {
- RuntimeUpdateTicker.detach();
- for (int i = 0; i < NUM_TUBES; i++) {
- if (Display[i].DigitA != Display[i].DigitB) {
- Display[i].DigitBActive = !Display[i].DigitBActive;
- }
- }
- DotIncrement = !DotIncrement;
- }
- }
- void RngTickerUpdate(void) {
- if (--RngTickerIter == 0) {
- RngUpdateTicker.detach();
- }
- }
- int main() {
-
- RtcTick = false;
- RefreshTick = false;
- RngTick = false;
- StartupFlag = true;
- RuntimeFlag = false;
- // Start I2C at 400kHz for DS3231
- i2c.frequency(400000);
-
- // Start with HV PSU disabled
- HV_EnableOutput(false);
-
- TUSB322_Init();
- PCA9685_Init();
- DS3231_Init(RtcTickCallback);
-
- // Enable HV PSU
- HV_EnableOutput(true);
-
- // Set PCA9685 input voltage to highest possible
- PCA9685_SetVoltage(1.0);
-
- // swo.printf("CPU SystemCoreClock is %d Hz\r\n", SystemCoreClock);
-
- // Bump I2C frequency to 1MHz
- i2c.frequency(1000000);
- // Setup a ticker to refresh the display at 1kHz
- Ticker refreshTicker;
- refreshTicker.attach_us(RefreshTickCallback, DIGIT_REFRESH_RATE_US);
- // Kick off the RNG ticker at 0.1Hz
- // Ticker rngTicker;
- // rngTicker.attach(RngTickCallback, DIGIT_RNG_REFRESH_RATE_S);
- // DS3231_SetTime(0, 55, 6, true);
- // DS3231_SetDate(0, 2, 12, 18, 0);
- while(1) {
- // Animate_Cycle_Basic();
- // Animate_Cycle_Analog();
- // Animate_Cycle_Low_Pwm();
- // Animate_Cycle_Pwm();
- // Animate_Cycle_Fade();
- // Animate_Cycle_Fade_Random();
- // Animate_Cycle_Fast();
- // Animate_Cycle_Fast_Random();
- if (RefreshTick) {
- RefreshTick = false;
- // On refresh, update the display with new values
- // If values has changed, update both prevous and next digits with new values
- for (int i = 0; i < NUM_TUBES; i++) {
- if (Display[i].Updated) {
- PCA9685_SetDigit(i, Display[i].DigitA, Display[i].DigitAValue);
- PCA9685_SetDigit(i, Display[i].DigitB, Display[i].DigitBValue);
- Display[i].Updated = false;
- }
- }
- if (DotUpdated) {
- PCA9685_SetDot(DotValue);
- DotUpdated = false;
- }
- }
- if (RtcTick) {
- RtcTick = false;
- // On RTC 1Hz ticks, get the time and begin update
- int nextSecond, nextMinute, nextHour;
- DS3231_GetTime(&nextSecond, &nextMinute, &nextHour);
- if (Display[3].DigitBActive) {
- Display[3].DigitB = nextMinute % 10;
- } else {
- Display[3].DigitA = nextMinute % 10;
- }
- if (Display[2].DigitBActive) {
- Display[2].DigitB = nextMinute / 10;
- } else {
- Display[2].DigitA = nextMinute / 10;
- }
- if (Display[1].DigitBActive) {
- Display[1].DigitB = nextHour % 10;
- } else {
- Display[1].DigitA = nextHour % 10;
- }
- if (Display[0].DigitBActive) {
- Display[0].DigitB = nextHour / 10;
- } else {
- Display[0].DigitA = nextHour / 10;
- }
- if (StartupFlag) {
- // Fade in the current time
- StartupTickerIter = FADE_TICKS;
- StartupUpdateTicker.attach(StartupTickerUpdate, (float)(DIGIT_REFRESH_RATE_US / 1000) / StartupTickerIter);
- StartupFlag = false;
- }
- if (RuntimeFlag) {
- // Fade in the new time
- RuntimeTickerIter = FADE_TICKS;
- RuntimeUpdateTicker.attach(RuntimeTickerUpdate, (float)(DIGIT_REFRESH_RATE_US / 1000) / RuntimeTickerIter);
- }
- }
- if (RngTick) {
- // Choose a random tube to refresh
- Display[rand() % 4].RefreshActive = true;
- RngTickerIter = DIGIT_RNG_REFRESH_ITER * FADE_TICKS;
- RngUpdateTicker.attach(RngTickerUpdate, (DIGIT_REFRESH_RATE_US/1000)/FADE_TICKS);
- RngTick = false;
- }
- }
- }
- void I2C_Write(int DeviceAddress, char RegAddress, char *Data, int Length) {
- char buffer[I2C_MAX_BUFFER+1] = {0};
- if (Length > I2C_MAX_BUFFER) LED_Fault(1);
- buffer[0] = RegAddress;
- memcpy(&buffer[1], Data, Length);
- i2c.write(DeviceAddress << 1, buffer, Length + 1);
- }
- void I2C_Read(int DeviceAddress, char RegAddress, char *Data, int Length) {
-
- i2c.write(DeviceAddress << 1, &RegAddress, 1);
- i2c.read(DeviceAddress << 1, Data, Length);
- }
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