Fixed compatibility issues with AVR compiler.

.github/workflows/release.yml

@@ -0,0 +1,60 @@
+name: Relase Script
+
+# Controls when the action will run.
+on:
+  release:
+    # A release, pre-release, or draft of a release is published.
+    types: [published]
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # The introduction just shows some useful informations.
+  intro:
+    # The type of runner that the job will run on.
+    runs-on: ubuntu-latest
+    # Steps represent a sequence of tasks that will be executed as part of the job.
+    steps:
+      - run: echo "The job was automatically triggered by a ${{ github.event_name }} event."
+      - run: echo "The name of the branch is ${{ github.ref }} and the repository is ${{ github.repository }}."
+
+  publish:
+    # The type of runner that the job will run on.
+    runs-on: ubuntu-latest
+    # Intro must run first
+    needs: intro
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Cache pip
+        uses: actions/cache@v3
+        with:
+          path: ~/.cache/pip
+          key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+          restore-keys: |
+            ${{ runner.os }}-pip-
+
+      - name: Cache PlatformIO
+        uses: actions/cache@v3
+        with:
+          path: ~/.platformio
+          key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.9"
+
+      - name: Install PlatformIO
+        run: |
+          python -m pip install --upgrade pip
+          pip install --upgrade platformio
+
+      - name: Deploy Package to Registry
+        env:
+          PLATFORMIO_AUTH_TOKEN: ${{ secrets.PLATFORMIO_AUTH_TOKEN }}
+        run: |
+          TAG=$(git describe --exact-match --tags)
+          curl -LO $GITHUB_SERVER_URL/$GITHUB_REPOSITORY/releases/download/$TAG/SerialMuxProt-$TAG.zip
+          pio package publish SerialMuxProt-$TAG.zip --non-interactive

README.md

@@ -60,7 +60,7 @@ typedef union _Frame
                 /** Channel ID */
                 uint8_t m_channel;
 
-                /** Channel ID */
+                /** Channel DLC */
                 uint8_t m_dlc;
 
                 /** Frame Checksum */
@@ -100,15 +100,13 @@ typedef union _Frame
 - The Application can publish or subscribe to any of these channels using the channel's name.
 - Client suscribes to a channel using [Channel 0](#control-channel-channel-0).
 
-#### DLC Field
+#### Data Length Code (DLC) Field
 
 - Contains the size of the payload contained by the frame.
 
 #### Checksum Field
 
-- Simple Checksum.
-- Applied to previous fields.
-- checksum = sum(Channel + Data Bytes) % UINT8_MAX
+- checksum = sum(Channel + DLC + Data Bytes) % UINT8_MAX
 
 ### Payload Field
 

examples/README.md

@@ -5,8 +5,8 @@ The following example is written for testing the SerialMuxProt with two microcon
 ## Installation
 
 - Install the library, depending on your IDE.
-- Compile `main.cpp` from SideA and flash it onto the first board.
-- Compile `main.cpp` from SideB and flash it onto the second board.
+- Compile `main.cpp` from ServerA and flash it onto the first board.
+- Compile `main.cpp` from ServerB and flash it onto the second board.
 - Connect the UART peripherals of both boards with each other:
     - Rx from Board 1 with Tx from Board 2
     - Tx from Board 1 with Rx from Board 2

src/SerialMuxProtCommon.hpp

@@ -71,7 +71,7 @@ SOFTWARE.
 #define CONTROL_CHANNEL_NUMBER (0U)
 
 /** DLC of Control Channel Payload. */
-#define CONTROL_CHANNEL_PAYLOAD_LENGTH (sizeof(Command))
+#define CONTROL_CHANNEL_PAYLOAD_LENGTH (sizeof(ControlChannelPayload))
 
 /** Period of Heartbeat when Synced. */
 #define HEATBEAT_PERIOD_SYNCED (5000U)
@@ -168,15 +168,15 @@ enum COMMANDS : uint8_t
 };
 
 /**
- * Command Channel Payload Structure.
+ * Control Channel Payload Structure.
  */
-typedef struct _Command
+typedef struct _ControlChannelPayload
 {
-    uint8_t  commandByte;                       /**< Command Byte */
-    uint32_t timestamp;                         /**< Timestamp */
-    uint8_t  channelNumber;                     /**< Channel Number */
-    char     channelName[CHANNEL_NAME_MAX_LEN]; /**< Channel Name */
-} __attribute__((packed)) Command;              /**< Command */
+    uint8_t  commandByte                       = 0U;   /**< Command Byte */
+    uint32_t timestamp                         = 0U;   /**< Timestamp */
+    uint8_t  channelNumber                     = 0U;   /**< Channel Number */
+    char     channelName[CHANNEL_NAME_MAX_LEN] = {0U}; /**< Channel Name */
+} __attribute__((packed)) ControlChannelPayload;       /**< ControlChannelPayload */
 
 #endif /* SERIALMUXPROT_COMMON_H_ */
 /** @} */

src/SerialMuxProtServer.hpp

@@ -268,10 +268,12 @@ class SerialMuxProtServer
      */
     void cmdSYNC(const uint32_t rcvTimestamp)
     {
-        Command output = {.commandByte = COMMANDS::SYNC_RSP, .timestamp = rcvTimestamp};
+        ControlChannelPayload output;
+        output.commandByte = COMMANDS::SYNC_RSP;
+        output.timestamp   = rcvTimestamp;
 
         /* Ignore return as SYNC_RSP can fail */
-        (void)send(CONTROL_CHANNEL_NUMBER, &output, sizeof(Command));
+        (void)send(CONTROL_CHANNEL_NUMBER, &output, sizeof(ControlChannelPayload));
     }
 
     /**
@@ -301,15 +303,17 @@ class SerialMuxProtServer
      */
     void cmdSCRB(const char* channelName)
     {
-        Command output = {.commandByte = COMMANDS::SCRB_RSP, .channelNumber = getTxChannelNumber(channelName)};
+        ControlChannelPayload output;
+        output.commandByte   = COMMANDS::SCRB_RSP;
+        output.channelNumber = getTxChannelNumber(channelName);
 
         /* Using strnlen in case the name is not null-terminated. */
         uint8_t nameLength = strnlen(channelName, CHANNEL_NAME_MAX_LEN);
 
         /* Name is always sent back. */
         memcpy(output.channelName, channelName, nameLength);
 
-        if (false == send(CONTROL_CHANNEL_NUMBER, &output, sizeof(Command)))
+        if (false == send(CONTROL_CHANNEL_NUMBER, &output, sizeof(ControlChannelPayload)))
         {
             /* Fall out of sync if failed to send. */
             m_isSynced = false;
@@ -367,7 +371,7 @@ class SerialMuxProtServer
     {
         if ((nullptr != payload) && (CONTROL_CHANNEL_PAYLOAD_LENGTH == payloadSize))
         {
-            const Command* parsedPayload = reinterpret_cast<const Command*>(payload);
+            const ControlChannelPayload* parsedPayload = reinterpret_cast<const ControlChannelPayload*>(payload);
 
             switch (parsedPayload->commandByte)
             {
@@ -514,9 +518,11 @@ class SerialMuxProtServer
             }
 
             /* Send SYNC Command. */
-            Command payload = {.commandByte = COMMANDS::SYNC, .timestamp = currentTimestamp};
+            ControlChannelPayload payload;
+            payload.commandByte = COMMANDS::SYNC;
+            payload.timestamp   = currentTimestamp;
 
-            if (true == send(CONTROL_CHANNEL_NUMBER, &payload, sizeof(Command)))
+            if (true == send(CONTROL_CHANNEL_NUMBER, &payload, sizeof(ControlChannelPayload)))
             {
                 m_lastSyncCommand = currentTimestamp;
             }
@@ -537,10 +543,11 @@ class SerialMuxProtServer
                     /* Suscribe to channel. */
                     /* Using strnlen in case the name is not null-terminated. */
                     uint8_t nameLength = strnlen(m_pendingSuscribeChannels[idx].m_name, CHANNEL_NAME_MAX_LEN);
-                    Command output     = {.commandByte = COMMANDS::SCRB};
+                    ControlChannelPayload output;
+                    output.commandByte = COMMANDS::SCRB;
                     memcpy(output.channelName, m_pendingSuscribeChannels[idx].m_name, nameLength);
 
-                    if (false == send(CONTROL_CHANNEL_NUMBER, &output, sizeof(Command)))
+                    if (false == send(CONTROL_CHANNEL_NUMBER, &output, sizeof(ControlChannelPayload)))
                     {
                         /* Out-of-Sync on failed send. */
                         m_isSynced = false;