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Update documentation and do some basic housekeeping

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This commit is contained in:
Leon Krieg
2024-09-25 17:16:20 +02:00
parent c8854931e8
commit aa0cd89d4e
20 changed files with 167 additions and 57 deletions
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62
src/main.c
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@@ -76,17 +76,11 @@ static int Init(void)
WDT_Enable();
WDT_SetTimeoutFlag(WDT2000); // 2 seconds
// Test persistent settings from EEPROM. There must
// be some sanity checking before these values are
// used.
// See if there are persistent target settings
// stored in EEPROM and load them. Some sanity
// checking must be done before using those.
// mem.temp = 20.50f;
// mem.dewp = 10.25f;
// MEM_Write(&mem);
// MEM_Dump();
// MEM_Free();
if (MEM_Read(&mem) == 0) {
if (MEM_Read(&mem)) { // Any valid blocks found?
Info("Found persistent configuration in EEPROM!");
Info("Using targets TEMP=%.2fC, DEWP=%.2fC.",
mem.temp, mem.dewp);
@@ -95,6 +89,12 @@ static int Init(void)
dewp_target = mem.dewp;
}
// mem.temp = 20.50f;
// mem.dewp = 10.25f;
// MEM_Write(&mem);
// MEM_Dump();
// MEM_Free();
// There is a possiblity to use interrupt signals
// for I2C communication but only as one large
// branching routine for the whole I2C system.
@@ -103,9 +103,9 @@ static int Init(void)
I2C_Init();
PWM_Init();
MOS_Enable(MOS03); // Lights
// MOS_Enable(MOS01); // Peltier
// MOS_Disable(MOS02); // Heating
MOS_Enable(MOS03); // Lights
// MOS_Enable(MOS01); // Peltier
// MOS_Disable(MOS02); // Heating
// Only FAN01 and FAN02 are receiving the correct
// frequency (25 KHz) right now. The 16-bit timer on
@@ -117,9 +117,9 @@ static int Init(void)
// complicated so it might be worth it to switch to
// something like an ATmega328PB.
PWM_SetValue(FAN01, 50); // Fan Peltier Hot side
PWM_SetValue(FAN02, 50); // Fan Peltier Cold Side
// PWM_SetValue(FAN03, 20); // Fan Heating
PWM_SetValue(FAN01, 50); // Fan Peltier Hot side
PWM_SetValue(FAN02, 50); // Fan Peltier Cold Side
// PWM_SetValue(FAN03, 20); // Fan Heating
// The I2C_SetChannel command changes the channel
// setting of the PCA9546 I2C multiplexer. Any
@@ -156,7 +156,7 @@ static void Update(void)
}
}
// Get sensor values
// Get latest sensor values
FetchSensorValues();
// Handle state
@@ -179,23 +179,25 @@ static void SetTarget(float t, float td)
Print("\r\n");
Info("Updating target configuration:");
Info("Setting temperature to %.2fC.", t);
Info("Setting new dewpoint to %.2fC.", td);
Info("Setting dewpoint to %.2fC.", td);
if (MEM_Read(&mem) == 0) {
// Even with level wearing there is a finite number
// of EEPROM write cycles so we should always check
// for redundant values. This could be handled by
// the underlying memory implementation.
if (MEM_Read(&mem)) {
if (t == mem.temp && td == mem.dewp) {
return; // Nothing to do
}
}
mem.temp = t;
mem.dewp = td;
// Update current targets
mem.temp = temp_target = t;
mem.dewp = dewp_target = td;
// Keep in EEPROM
// Store in EEPROM
MEM_Write(&mem);
// Update state
temp_target = t;
dewp_target = td;
}
static void FetchSensorValues(void)
@@ -204,23 +206,19 @@ static void FetchSensorValues(void)
float t[6], rh[3], td[3];
Print("\r\n");
Info("Reading sensor values...");
Info("Fetching sensor values...");
I2C_SetChannel(AHT01);
I2C_AHT20_Read(&t[0], &rh[0]);
I2C_SetChannel(AHT02);
I2C_AHT20_Read(&t[1], &rh[1]);
I2C_SetChannel(AHT03);
I2C_AHT20_Read(&t[2], &rh[2]);
raw = I2C_ADS1115_ReadRaw(ADS01);
t[3] = SteinhartHart(Resistance(raw));
raw = I2C_ADS1115_ReadRaw(ADS02);
t[4] = SteinhartHart(Resistance(raw));
raw = I2C_ADS1115_ReadRaw(ADS03);
t[5] = SteinhartHart(Resistance(raw));
@@ -230,7 +228,7 @@ static void FetchSensorValues(void)
temp = (t[0] + t[1] + t[2]) / 3;
rhum = (rh[0] + rh[1] + rh[2]) / 3;
dewp = Dewpoint(temp, rhum);
dewp = (td[0] + td[1] + td[2]) / 3;
Info("T1=%.2fC, TD1=%.2fC, RH1=%.2f%%, NT1=%.2fC", t[0], td[0], rh[0], t[3]);
Info("T2=%.2fC, TD2=%.2fC, RH2=%.2f%%, NT2=%.2fC", t[1], td[1], rh[1], t[4]);