fram support for digital output

Template Project/lib/ESPMegaPRO/DigitalOutputCard.cpp

@@ -32,6 +32,10 @@ void DigitalOutputCard::digitalWrite(uint8_t pin, bool state) {
     this->pwm.setPin(virtualPinMap[pin], state ? 4095 : 0);
     this->state_buffer[pin] = state;
     this->value_buffer[pin] = state ? 4095 : 0;
+    if (this->framAutoSave) {
+        this->saveStateToFRAM();
+        this->savePinValueToFRAM(pin);
+    }
     if(change_callback != NULL) {
         change_callback(pin, state, state ? 4095 : 0);
     }
@@ -42,6 +46,10 @@ void DigitalOutputCard::analogWrite(uint8_t pin, uint16_t value) {
     if (value > 4095) value = 4095;
     // Set the pwm value
     this->pwm.setPin(virtualPinMap[pin], value);
+    if (this->framAutoSave) {
+        this->saveStateToFRAM();
+        this->savePinValueToFRAM(pin);
+    }
     this->state_buffer[pin] = value > 0;
     this->value_buffer[pin] = value;
     if(change_callback != NULL) {
@@ -71,6 +79,9 @@ uint8_t DigitalOutputCard::getType() {
 void DigitalOutputCard::setState(uint8_t pin, bool state) {
     this-> state_buffer[pin] = state;
     this->pwm.setPin(pin, state*value_buffer[pin]);
+    if(this->framAutoSave) {
+        this->saveStateToFRAM();
+    }
     if (change_callback != NULL) {
         change_callback(pin, state, value_buffer[pin]);
     }
@@ -81,6 +92,9 @@ void DigitalOutputCard::setValue(uint8_t pin, uint16_t value) {
     if (value > 4095) value = 4095;
     this-> value_buffer[pin] = value;
     this->pwm.setPin(pin, state_buffer[pin]*value);
+    if (this->framAutoSave) {
+        this->savePinValueToFRAM(pin);
+    }
     if (change_callback != NULL) {
         change_callback(pin, state_buffer[pin], value);
     }
@@ -100,3 +114,60 @@ void DigitalOutputCard::loadPinMap(uint8_t pinMap[16]) {
         this->virtualPinMap[pinMap[i]] = i;
     }
 }
+
+void DigitalOutputCard::bindFRAM(FRAM *fram, uint16_t address) {
+    this->fram = fram;
+    this->framBinded = true;
+    this->framAddress = address;
+}
+
+uint16_t DigitalOutputCard::packStates() {
+    uint16_t packed = 0;
+    for(int i = 0; i < 16; i++) {
+        packed |= (state_buffer[i] << i);
+    }
+    return packed;
+}
+
+void DigitalOutputCard::unpackStates(uint16_t states) {
+    for(int i = 0; i < 16; i++) {
+        this->setState(i, (states >> i) & 1);
+    }
+}
+
+void DigitalOutputCard::saveToFRAM() {
+    if(!framBinded) return;
+    // Save the state
+    uint16_t packed = packStates();
+    this->fram->write16(framAddress, packed);
+    // Save the value
+    this->fram->write(framAddress+2, (uint8_t*)value_buffer, 32);
+}
+
+void DigitalOutputCard::loadFromFRAM() {
+    if(!framBinded) return;
+    // Load the state
+    uint16_t packed = this->fram->read16(framAddress);
+    unpackStates(packed);
+    // Load the value
+    uint16_t value[16];
+    this->fram->read(framAddress+2, (uint8_t*)value, 32);
+    for(int i = 0; i < 16; i++) {
+        this->setValue(i, value[i]);
+    }
+}
+
+void DigitalOutputCard::setAutoSaveToFRAM(bool autoSave) {
+    this->framAutoSave = autoSave;
+}
+
+void DigitalOutputCard::savePinValueToFRAM(uint8_t pin) {
+    if(!framBinded) return;
+    this->fram->write(framAddress+2+pin*2, (uint8_t*)&value_buffer[pin], 2);
+}
+
+void DigitalOutputCard::saveStateToFRAM() {
+    if(!framBinded) return;
+    uint16_t packed = packStates();
+    this->fram->write16(framAddress, packed);
+}

Template Project/lib/ESPMegaPRO/DigitalOutputCard.hpp

@@ -1,6 +1,7 @@
 #pragma once
 #include <ExpansionCard.hpp>
 #include <Adafruit_PWMServoDriver.h>
+#include <FRAM.h>
 
 // Protocol for digital output card
 // Note that pin is always 2 characters long and padded with 0 if necessary
@@ -51,9 +52,34 @@ public:
     void deregisterChangeCallback();
     // Load a new pin map
     void loadPinMap(uint8_t pinMap[16]);  
+    // Bind the fram object to the card
+    // The Output card use the fram in this layout:
+    // [2 bytes] 0-1 : state
+    // [32 bytes] 2-33 : value
+    void bindFRAM(FRAM *fram, uint16_t address);
+    // Save the state and value to the fram
+    void saveToFRAM();
+    // Load the state and value from the fram
+    void loadFromFRAM();
+    // Set the auto save to fram flag
+    void setAutoSaveToFRAM(bool autoSave);
+    // Save a single pin value to fram
+    void savePinValueToFRAM(uint8_t pin);
+    // Save state to fram
+    void saveStateToFRAM();
+    // Save value to fram
+    void saveValueToFRAM();
     // Get type of card
     uint8_t getType();
 private:
+    // FRAM address
+    uint16_t framAddress;
+    // FRAM is binded
+    bool framBinded = false;
+    // Auto save to fram
+    bool framAutoSave = false;
+    // The fram object pointer
+    FRAM *fram;
     // The pwm driver
     Adafruit_PWMServoDriver pwm;
     // The address of the card
@@ -66,6 +92,10 @@ private:
     std::function<void(uint8_t, bool, uint16_t)> change_callback;
     // Physical pin to virtual pin map
     uint8_t pinMap[16];
+    // Return 16 bit value representing all 16 channels
+    uint16_t packStates();
+    // Unpack the 16 bit value to the state buffer
+    void unpackStates(uint16_t states);
     // Virtual pin to physical pin map
     uint8_t virtualPinMap[16];
 };

Template Project/lib/ESPMegaPRO/ESPMegaTouch.cpp.disabled

@@ -1 +0,0 @@
-#include <ESPMegaTouch.hpp>

Template Project/lib/ESPMegaPRO/ESPMegaTouch.hpp.disabled

@@ -1 +0,0 @@
-#include <EasyNextion.h>

Template Project/platformio.ini

@@ -24,5 +24,6 @@ lib_deps = adafruit/Adafruit PWM Servo Driver Library@^2.4.1
            paulstoffregen/Time@^1.6.1
            paulstoffregen/DS1307RTC@0.0.0-alpha+sha.c2590c0033
            knolleary/pubsubclient@^2.8.0
-           
+           seithan/Easy Nextion Library@^1.0.6
 monitor_speed = 115200
+