Introduce gpio2 for the CMT2300A module

This implements the sending interrupt instead of polling. On the other hand, gpio3 is made optional.

docs/DeviceProfiles.md

@@ -95,7 +95,8 @@ The json file can contain multiple profiles. Each profile requires a name and di
 | cmt.clk       | number    | CLK Pin |
 | cmt.cs        | number    | CS Pin |
 | cmt.fcs       | number    | FCS Pin |
-| cmt.gpio3     | number    | GPIO3 Pin |
+| cmt.gpio2     | number    | GPIO2 Pin (optional) |
+| cmt.gpio3     | number    | GPIO3 Pin (optional) |
 | eth.enabled   | boolean   | Enable/Disable the ethernet stack |
 | eth.phy_addr  | number    | Unique PHY addr |
 | eth.power     | number    | Power Pin (if available). Use -1 for not assigned pins. |

include/PinMapping.h

@@ -22,6 +22,7 @@ struct PinMapping_t {
     int8_t cmt_clk;
     int8_t cmt_cs;
     int8_t cmt_fcs;
+    int8_t cmt_gpio2;
     int8_t cmt_gpio3;
     int8_t cmt_sdio;
 

lib/CMT2300a/cmt2300wrapper.cpp

@@ -166,7 +166,7 @@ bool CMT2300A::_init_radio()
 
     /* Config GPIOs */
     CMT2300A_ConfigGpio(
-        CMT2300A_GPIO3_SEL_INT2);
+        CMT2300A_GPIO2_SEL_INT1 | CMT2300A_GPIO3_SEL_INT2);
 
     /* Config interrupt */
     CMT2300A_ConfigInterrupt(

lib/Hoymiles/src/Hoymiles.cpp

@@ -32,9 +32,9 @@ void HoymilesClass::initNRF(SPIClass* initialisedSpiBus, uint8_t pinCE, uint8_t
     _radioNrf->init(initialisedSpiBus, pinCE, pinIRQ);
 }
 
-void HoymilesClass::initCMT(int8_t pin_sdio, int8_t pin_clk, int8_t pin_cs, int8_t pin_fcs, int8_t pin_gpio3)
+void HoymilesClass::initCMT(int8_t pin_sdio, int8_t pin_clk, int8_t pin_cs, int8_t pin_fcs, int8_t pin_gpio2, int8_t pin_gpio3)
 {
-    _radioCmt->init(pin_sdio, pin_clk, pin_cs, pin_fcs, pin_gpio3);
+    _radioCmt->init(pin_sdio, pin_clk, pin_cs, pin_fcs, pin_gpio2, pin_gpio3);
 }
 
 void HoymilesClass::loop()

lib/Hoymiles/src/Hoymiles.h

@@ -17,7 +17,7 @@ class HoymilesClass {
 public:
     void init();
     void initNRF(SPIClass* initialisedSpiBus, uint8_t pinCE, uint8_t pinIRQ);
-    void initCMT(int8_t pin_sdio, int8_t pin_clk, int8_t pin_cs, int8_t pin_fcs, int8_t pin_gpio3);
+    void initCMT(int8_t pin_sdio, int8_t pin_clk, int8_t pin_cs, int8_t pin_fcs, int8_t pin_gpio2, int8_t pin_gpio3);
     void loop();
 
     void setMessageOutput(Print* output);

lib/Hoymiles/src/HoymilesRadio_CMT.cpp

@@ -119,10 +119,16 @@ enumCMTresult HoymilesRadio_CMT::cmtProcess(void)
         break;
 
     case CMT_STATE_RX_WAIT:
-        if (_packetReceived) /* Read INT2, PKT_OK */
+        if (!_gpio3_configured) {
+            if (CMT2300A_MASK_PKT_OK_FLG & CMT2300A_ReadReg(CMT2300A_CUS_INT_FLAG)) { // read INT2, PKT_OK flag
+                _packetReceived = true;
+            }
+        }
+
+        if (_packetReceived)
         {
-            Hoymiles.getMessageOutput()->println("Interrupt received");
+            Hoymiles.getMessageOutput()->println("Interrupt 2 received");
-            _packetReceived = false; // reset interrupt
+            _packetReceived = false; // reset interrupt 2
             cmtNextState = CMT_STATE_RX_DONE;
         }
 
@@ -223,8 +229,14 @@ enumCMTresult HoymilesRadio_CMT::cmtProcess(void)
         break;
 
     case CMT_STATE_TX_WAIT:
-        if (CMT2300A_MASK_TX_DONE_FLG & CMT2300A_ReadReg(CMT2300A_CUS_INT_CLR1)) /* Read TX_DONE flag */
+        if (!_gpio2_configured) {
-        {
+            if (CMT2300A_MASK_TX_DONE_FLG & CMT2300A_ReadReg(CMT2300A_CUS_INT_CLR1)) { // read INT1, TX_DONE flag
+                _packetSent = true;
+            }
+        }
+        if (_packetSent) {
+            Hoymiles.getMessageOutput()->println(F("Interrupt 1 received"));
+            _packetSent = false; // reset interrupt 1
             cmtNextState = CMT_STATE_TX_DONE;
         }
 
@@ -283,7 +295,7 @@ enumCMTresult HoymilesRadio_CMT::cmtProcess(void)
     return nRes;
 }
 
-void HoymilesRadio_CMT::init(int8_t pin_sdio, int8_t pin_clk, int8_t pin_cs, int8_t pin_fcs, int8_t pin_gpio3)
+void HoymilesRadio_CMT::init(int8_t pin_sdio, int8_t pin_clk, int8_t pin_cs, int8_t pin_fcs, int8_t pin_gpio2, int8_t pin_gpio3)
 {
     _dtuSerial.u64 = 0;
 
@@ -301,7 +313,15 @@ void HoymilesRadio_CMT::init(int8_t pin_sdio, int8_t pin_clk, int8_t pin_cs, int
         Hoymiles.getMessageOutput()->println("Connection error!!");
     }
 
-    attachInterrupt(digitalPinToInterrupt(pin_gpio3), std::bind(&HoymilesRadio_CMT::handleIntr, this), RISING);
+    if (pin_gpio2 >= 0) {
+        attachInterrupt(digitalPinToInterrupt(pin_gpio2), std::bind(&HoymilesRadio_CMT::handleInt1, this), RISING);
+        _gpio2_configured = true;
+    }
+
+    if (pin_gpio3 >= 0) {
+        attachInterrupt(digitalPinToInterrupt(pin_gpio3), std::bind(&HoymilesRadio_CMT::handleInt2, this), RISING);
+        _gpio3_configured = true;
+    }
 
     _isInitialized = true;
 }
@@ -423,7 +443,12 @@ bool HoymilesRadio_CMT::isConnected()
     return _radio->isChipConnected();
 }
 
-void ARDUINO_ISR_ATTR HoymilesRadio_CMT::handleIntr()
+void ARDUINO_ISR_ATTR HoymilesRadio_CMT::handleInt1()
+{
+    _packetSent = true;
+}
+
+void ARDUINO_ISR_ATTR HoymilesRadio_CMT::handleInt2()
 {
     _packetReceived = true;
 }

lib/Hoymiles/src/HoymilesRadio_CMT.h

@@ -40,20 +40,25 @@ typedef enum {
 
 class HoymilesRadio_CMT : public HoymilesRadio {
 public:
-    void init(int8_t pin_sdio, int8_t pin_clk, int8_t pin_cs, int8_t pin_fcs, int8_t pin_gpio3);
+    void init(int8_t pin_sdio, int8_t pin_clk, int8_t pin_cs, int8_t pin_fcs, int8_t pin_gpio2, int8_t pin_gpio3);
     void loop();
     void setPALevel(int8_t paLevel);
 
     bool isConnected();
 
 private:
-    void ARDUINO_ISR_ATTR handleIntr();
+    void ARDUINO_ISR_ATTR handleInt1();
+    void ARDUINO_ISR_ATTR handleInt2();
 
     void sendEsbPacket(CommandAbstract* cmd);
 
     std::unique_ptr<CMT2300A> _radio;
 
     volatile bool _packetReceived = false;
+    volatile bool _packetSent = false;
+
+    bool _gpio2_configured = false;
+    bool _gpio3_configured = false;
 
     std::queue<fragment_t> _rxBuffer;
     TimeoutHelper _rxTimeout;

src/InverterSettings.cpp

@@ -33,7 +33,7 @@ void InverterSettingsClass::init()
         }
 
         if (PinMapping.isValidCmt2300Config()) {
-            Hoymiles.initCMT(pin.cmt_sdio, pin.cmt_clk, pin.cmt_cs, pin.cmt_fcs, pin.cmt_gpio3);
+            Hoymiles.initCMT(pin.cmt_sdio, pin.cmt_clk, pin.cmt_cs, pin.cmt_fcs, pin.cmt_gpio2, pin.cmt_gpio3);
         }
 
         MessageOutput.println("  Setting radio PA level... ");

src/PinMapping.cpp

@@ -50,6 +50,10 @@
 #define CMT_FCS -1
 #endif
 
+#ifndef CMT_GPIO2
+#define CMT_GPIO2 -1
+#endif
+
 #ifndef CMT_GPIO3
 #define CMT_GPIO3 -1
 #endif
@@ -73,6 +77,7 @@ PinMappingClass::PinMappingClass()
     _pinMapping.cmt_clk = CMT_CLK;
     _pinMapping.cmt_cs = CMT_CS;
     _pinMapping.cmt_fcs = CMT_FCS;
+    _pinMapping.cmt_gpio2 = CMT_GPIO2;
     _pinMapping.cmt_gpio3 = CMT_GPIO3;
     _pinMapping.cmt_sdio = CMT_SDIO;
 
@@ -133,6 +138,7 @@ bool PinMappingClass::init(const String& deviceMapping)
             _pinMapping.cmt_clk = doc[i]["cmt"]["clk"] | CMT_CLK;
             _pinMapping.cmt_cs = doc[i]["cmt"]["cs"] | CMT_CS;
             _pinMapping.cmt_fcs = doc[i]["cmt"]["fcs"] | CMT_FCS;
+            _pinMapping.cmt_gpio2 = doc[i]["cmt"]["gpio2"] | CMT_GPIO2;
             _pinMapping.cmt_gpio3 = doc[i]["cmt"]["gpio3"] | CMT_GPIO3;
             _pinMapping.cmt_sdio = doc[i]["cmt"]["sdio"] | CMT_SDIO;
 
@@ -180,7 +186,6 @@ bool PinMappingClass::isValidCmt2300Config()
     return _pinMapping.cmt_clk >= 0
         && _pinMapping.cmt_cs >= 0
         && _pinMapping.cmt_fcs >= 0
-        && _pinMapping.cmt_gpio3 >= 0
         && _pinMapping.cmt_sdio >= 0;
 }
 

src/WebApi_device.cpp

@@ -52,6 +52,7 @@ void WebApiDeviceClass::onDeviceAdminGet(AsyncWebServerRequest* request)
     cmtPinObj["cs"] = pin.cmt_cs;
     cmtPinObj["fcs"] = pin.cmt_fcs;
     cmtPinObj["sdio"] = pin.cmt_sdio;
+    cmtPinObj["gpio2"] = pin.cmt_gpio2;
     cmtPinObj["gpio3"] = pin.cmt_gpio3;
 
     JsonObject ethPinObj = curPin.createNestedObject("eth");

webapp/src/types/PinMapping.ts

@@ -12,6 +12,7 @@ export interface Cmt2300 {
     cs: number;
     fcs: number;
     sdio: number;
+    gpio2: number;
     gpio3: number;
  }