mirror of
https://github.com/DerSpatz/PCB-reflow-solder-heat-plate.git
synced 2024-12-01 02:27:20 +01:00
Added first time startup and CRC checks. Added better button handling
This commit is contained in:
Nathan
parent
4ac96d1a05
commit
737fb47c62
@ -59,11 +59,14 @@ enum buttons_state_t { BUTTONS_NO_PRESS, BUTTONS_BOTH_PRESS, BUTTONS_UP_PRESS, B
|
||||
// Temperature Info
|
||||
byte max_temp_array[] = {140, 150, 160, 170, 180};
|
||||
byte max_temp_index = 0;
|
||||
#define MAX_RESISTANCE 10.0
|
||||
|
||||
// EEPROM storage locations
|
||||
#define TEMP_INDEX_ADDR 1
|
||||
#define RESISTANCE_INDEX_ADDR 2
|
||||
#define DIGITAL_TEMP_ID_ADDR 6
|
||||
#define CRC_ADDR 0
|
||||
#define FIRSTTIME_BOOT_ADDR 4
|
||||
#define TEMP_INDEX_ADDR 5
|
||||
#define RESISTANCE_INDEX_ADDR 6
|
||||
#define DIGITAL_TEMP_ID_ADDR 10
|
||||
|
||||
// Voltage Measurement Info
|
||||
float vConvert = 52.00;
|
||||
@ -134,8 +137,8 @@ struct solder_profile_t {
|
||||
// profiles pulled from here: https://www.7pcb.com/blog/lead-free-reflow-profile.php
|
||||
#define NUM_PROFILES 2
|
||||
const static solder_profile_t profiles[NUM_PROFILES] = {
|
||||
{.points=4, .seconds={25, 105, 115, 155}, .fraction={.65, .78, .81, 1.00}},
|
||||
{.points=2, .seconds={162.0, 202.0}, .fraction={.95, 1.00}}};
|
||||
{.points = 4, .seconds = {25, 105, 115, 155}, .fraction = {.65, .78, .81, 1.00}},
|
||||
{.points = 2, .seconds = {162.0, 202.0}, .fraction = {.95, 1.00}}};
|
||||
|
||||
// temperature must be within this range to move on to next step
|
||||
#define TARGET_TEMP_THRESHOLD 5.0
|
||||
@ -178,11 +181,13 @@ void setup() {
|
||||
pinMode(DNSW_PIN, INPUT);
|
||||
pinMode(TEMP_PIN, INPUT);
|
||||
pinMode(VCC_PIN, INPUT);
|
||||
pinMode(13, OUTPUT);
|
||||
digitalWrite(13, LOW);
|
||||
|
||||
Serial.begin(115200);
|
||||
|
||||
// Pull saved values from EEPROM
|
||||
max_temp_index = EEPROM.read(TEMP_INDEX_ADDR) % sizeof(max_temp_array);
|
||||
max_temp_index = getMaxTempIndex();
|
||||
|
||||
// Enable Fast PWM with no prescaler
|
||||
setFastPwm();
|
||||
@ -195,10 +200,48 @@ void setup() {
|
||||
// check onewire TEMP_PIN sensors
|
||||
setupSensors();
|
||||
|
||||
debugprintln("Checking first boot");
|
||||
if (isFirstBoot() || !validateCRC()) {
|
||||
doSetup();
|
||||
}
|
||||
|
||||
debugprintln("Entering main menu");
|
||||
// Go to main menu
|
||||
mainMenu();
|
||||
}
|
||||
|
||||
void updateCRC() {
|
||||
uint32_t new_crc = eepromCRC();
|
||||
setCRC(new_crc);
|
||||
}
|
||||
|
||||
bool validateCRC() {
|
||||
uint32_t stored_crc;
|
||||
EEPROM.get(CRC_ADDR, stored_crc);
|
||||
uint32_t calculated_crc = eepromCRC();
|
||||
debugprint("got CRCs, stored: ");
|
||||
debugprint(stored_crc);
|
||||
debugprint(", calculated: ");
|
||||
debugprintln(calculated_crc);
|
||||
return stored_crc == calculated_crc;
|
||||
}
|
||||
|
||||
void setCRC(uint32_t new_crc) { EEPROM.put(CRC_ADDR, new_crc); }
|
||||
|
||||
uint32_t eepromCRC(void) {
|
||||
static const uint32_t crc_table[16] = {0x00000000, 0x1db71064, 0x3b6e20c8, 0x26d930ac,
|
||||
0x76dc4190, 0x6b6b51f4, 0x4db26158, 0x5005713c,
|
||||
0xedb88320, 0xf00f9344, 0xd6d6a3e8, 0xcb61b38c,
|
||||
0x9b64c2b0, 0x86d3d2d4, 0xa00ae278, 0xbdbdf21c};
|
||||
uint32_t crc = ~0L;
|
||||
// Skip first 4 bytes of EEPROM as thats where we store the CRC
|
||||
for (int index = 4; index < EEPROM.length(); ++index) {
|
||||
crc = crc_table[(crc ^ EEPROM[index]) & 0x0f] ^ (crc >> 4);
|
||||
crc = crc_table[(crc ^ (EEPROM[index] >> 4)) & 0x0f] ^ (crc >> 4);
|
||||
crc = ~crc;
|
||||
}
|
||||
|
||||
return crc;
|
||||
}
|
||||
|
||||
inline void setupSensors() {
|
||||
@ -216,8 +259,40 @@ inline void setFastPwm() {
|
||||
TCCR2B = _BV(CS20);
|
||||
}
|
||||
|
||||
inline bool isFirstBoot() {
|
||||
uint8_t first_boot = EEPROM.read(FIRSTTIME_BOOT_ADDR);
|
||||
debugprint("Got first boot flag: ");
|
||||
debugprintln(first_boot);
|
||||
return first_boot != 1;
|
||||
}
|
||||
|
||||
inline void setFirstBoot() {
|
||||
EEPROM.write(FIRSTTIME_BOOT_ADDR, 1);
|
||||
updateCRC();
|
||||
}
|
||||
|
||||
inline float getResistance() {
|
||||
float f;
|
||||
return EEPROM.get(RESISTANCE_INDEX_ADDR, f);
|
||||
return f;
|
||||
}
|
||||
|
||||
inline void setResistance(float resistance) {
|
||||
EEPROM.put(TEMP_INDEX_ADDR, resistance);
|
||||
updateCRC();
|
||||
}
|
||||
|
||||
inline void setMaxTempIndex(int index) {
|
||||
EEPROM.update(TEMP_INDEX_ADDR, index);
|
||||
updateCRC();
|
||||
}
|
||||
|
||||
inline int getMaxTempIndex(void) { return EEPROM.read(TEMP_INDEX_ADDR) % sizeof(max_temp_array); }
|
||||
|
||||
void showLogo() {
|
||||
unsigned long start_time = millis();
|
||||
display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS);
|
||||
while(start_time + 2000 > millis()) {
|
||||
display.clearDisplay();
|
||||
display.setTextSize(1);
|
||||
display.setTextColor(SSD1306_WHITE);
|
||||
@ -230,10 +305,53 @@ void showLogo() {
|
||||
display.print(F("H/W V"));
|
||||
display.print(hw, 1);
|
||||
display.display();
|
||||
delay(2000);
|
||||
buttons_state_t cur_button = getButtonsState();
|
||||
if(cur_button == BUTTONS_BOTH_PRESS) {
|
||||
doSetup();
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void mainMenu() {
|
||||
inline void doSetup() {
|
||||
debugprintln("Performing setup");
|
||||
// TODO(HEIDT) show an info screen if we're doing firstime setup or if memory is corrupted
|
||||
|
||||
getColdResistance();
|
||||
// TODO(HEIDT) do a temperature module setup here
|
||||
|
||||
setFirstBoot();
|
||||
}
|
||||
|
||||
inline void getColdResistance() {
|
||||
float resistance = 0.9;
|
||||
while (1) {
|
||||
clearMainMenu();
|
||||
display.setCursor(3, 4);
|
||||
display.print(F("Resistance"));
|
||||
display.drawLine(3, 12, 79, 12, SSD1306_WHITE);
|
||||
display.setCursor(3, 14);
|
||||
display.print(F("UP/DN: change"));
|
||||
display.setCursor(3, 22);
|
||||
display.print(F("BOTH: choose"));
|
||||
buttons_state_t button = getButtonsState();
|
||||
if (button == BUTTONS_UP_PRESS) {
|
||||
resistance += 0.1;
|
||||
} else if (button == BUTTONS_DN_PRESS) {
|
||||
resistance -= 0.1;
|
||||
} else if (button == BUTTONS_BOTH_PRESS) {
|
||||
setResistance(resistance);
|
||||
return;
|
||||
}
|
||||
resistance = constrain(resistance, 0, MAX_RESISTANCE);
|
||||
|
||||
display.setCursor(90, 12);
|
||||
display.print(resistance);
|
||||
display.display();
|
||||
}
|
||||
}
|
||||
|
||||
inline void mainMenu() {
|
||||
// Debounce
|
||||
while (!digitalRead(UPSW_PIN) || !digitalRead(DNSW_PIN))
|
||||
;
|
||||
@ -277,7 +395,7 @@ void mainMenu() {
|
||||
if (max_temp_index < sizeof(max_temp_array) - 1) {
|
||||
max_temp_index++;
|
||||
debugprintln("incrementing max temp");
|
||||
EEPROM.update(TEMP_INDEX_ADDR, max_temp_index);
|
||||
setMaxTempIndex(max_temp_index);
|
||||
}
|
||||
cur_state = MENU_IDLE;
|
||||
} break;
|
||||
@ -285,7 +403,7 @@ void mainMenu() {
|
||||
if (max_temp_index > 0) {
|
||||
max_temp_index--;
|
||||
debugprintln("decrementing max temp");
|
||||
EEPROM.update(TEMP_INDEX_ADDR, max_temp_index);
|
||||
setMaxTempIndex(max_temp_index);
|
||||
}
|
||||
cur_state = MENU_IDLE;
|
||||
} break;
|
||||
@ -301,6 +419,8 @@ void mainMenu() {
|
||||
|
||||
// TODO(HEIDT) change to a down-up model or we'll loop forever in these cases
|
||||
buttons_state_t getButtonsState() {
|
||||
const unsigned long timeout = 1000;
|
||||
|
||||
buttons_state_t state = BUTTONS_NO_PRESS;
|
||||
if (digitalRead(UPSW_PIN) && digitalRead(DNSW_PIN)) {
|
||||
state = BUTTONS_NO_PRESS;
|
||||
@ -308,17 +428,20 @@ buttons_state_t getButtonsState() {
|
||||
delay(100);
|
||||
if (!digitalRead(UPSW_PIN) && !digitalRead(DNSW_PIN)) {
|
||||
state = BUTTONS_BOTH_PRESS;
|
||||
} else if (digitalRead(UPSW_PIN)) {
|
||||
} else if (!digitalRead(UPSW_PIN)) {
|
||||
state = BUTTONS_UP_PRESS;
|
||||
} else {
|
||||
state = BUTTONS_DN_PRESS;
|
||||
}
|
||||
}
|
||||
|
||||
// wait for up on both switches
|
||||
// TODO(HEIDT) holding down switches will block execution flow, address
|
||||
while (!digitalRead(UPSW_PIN) || !digitalRead(DNSW_PIN))
|
||||
;
|
||||
// wait for up on both switches, timeout if not released within a second
|
||||
unsigned long start_time = millis();
|
||||
while (!digitalRead(UPSW_PIN) || !digitalRead(DNSW_PIN)) {
|
||||
if (millis() > start_time + timeout) {
|
||||
return BUTTONS_NO_PRESS;
|
||||
}
|
||||
}
|
||||
|
||||
return state;
|
||||
}
|
||||
@ -363,7 +486,6 @@ inline void displayProfileRight(int8_t cur_profile) {
|
||||
display.drawLine(cur_x, cur_y, x_next, y_next, SSD1306_WHITE);
|
||||
cur_x = x_next;
|
||||
cur_y = y_next;
|
||||
|
||||
}
|
||||
// draw down to finish TEMP_PIN
|
||||
display.drawLine(cur_x, cur_y, SCREEN_WIDTH - 2, 30, SSD1306_WHITE);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user