Merge branch 'main' of https://github.com/RudolphRiedel/ArduinoCore-renesas

Author: RudolphRiedel

.github/workflows/compile-examples.yml

@@ -37,6 +37,7 @@ jobs:
         - libraries/RTC/examples/RTC_PeriodicExample
         - libraries/RTC/examples/Test_RTC
         - libraries/SoftwareSerial
+        - libraries/WDT
 
     strategy:
       fail-fast: false
@@ -133,26 +134,22 @@ jobs:
             - name: LiquidCrystal
             - name: CapacitiveSensor
             - name: Ethernet
-            - name: ArduinoBearSSL
             - name: ArduinoHttpClient
             - name: NTPClient
             - name: ArduinoMqttClient
             - name: Stepper
             - name: SD
             - name: Arduino_JSON
-            - name: Arduino_HTS221
+            - name: ArduinoBLE
             - name: Firmata
             - name: ArduinoModbus
             - name: ArduinoDMX
             - name: ArduinoRS485
-            - name: WiFi
             - name: ArduinoIoTCloud
           platforms: |
-            # Use Board Manager to install the latest release of Arduino SAMD Boards to get the toolchain
+            # Use Board Manager to install the latest release of Arduino Renesas Boards to get the toolchain
             - name: "arduino:renesas_uno"
-              source-url: "https://downloads.arduino.cc/packages/package_renesas_release_index.json"
             - name: "arduino:renesas_portenta"
-              source-url: "https://downloads.arduino.cc/packages/package_renesas_release_index.json"
             # Overwrite the Board Manager installation with the local platform
             - source-path: "./"
               name: "arduino-git:renesas"

bootloaders/SANTIAGO/README.md renamed to bootloaders/UNO_R4/README.md

@@ -1,4 +1,4 @@
-:floppy_disk: `bootloaders/SANTIAGO`
+:floppy_disk: `bootloaders/UNO_R4`
 ====================================
 Sources for Uno R4 WIFi at [email protected]:bcmi-labs/tinyusb.git , commit 185ae31ff15a1013a5a890455220a29bad1ed209
 
@@ -21,7 +21,7 @@ Prerequisite: install esp-idf v5.0.0 (or newer) and run
 ```
 . $esp-idf-path/export.sh
 
-cd extras/santiago-leven-usb-bridge
+cd extras/uno-r4-wifi-usb-bridge
 ```
 
 Restart the board in ESP download mode by shorting ESP_DOWNLOAD with GND, then power via USB
@@ -45,7 +45,7 @@ stty -F $portname 2400
 
 Then flash the bootloader with [`rfp-cli`](https://www.renesas.com/us/en/software-tool/renesas-flash-programmer-programming-gui#download)
 ```
-rfp-cli -device ra -port $portname -p dfu_leven.hex
+rfp-cli -device ra -port $portname -p dfu_wifi.hex
 ```
 
 :rocket: `How to load bootloader (UNO R4 Minima)`

bootloaders/SANTIAGO/dfu_minima.hex renamed to bootloaders/UNO_R4/dfu_minima.hex

@@ -272,9 +272,12 @@ void UART::begin(unsigned long baudrate, uint16_t config) {
 
   fsp_err_t err;
   const bool bit_mod = true;
-  const uint32_t err_rate = 5;
+  const uint32_t err_rate = 3000; //means 3%
 
   err = R_SCI_UART_BaudCalculate(baudrate, bit_mod, err_rate, &uart_baud);
+  if (uart_baud.mddr == 0) {
+    err = R_SCI_UART_BaudCalculate(baudrate, false, err_rate, &uart_baud);
+  }
   err = R_SCI_UART_Open (&uart_ctrl, &uart_cfg);
   if(err != FSP_SUCCESS) while(1);
   err = R_SCI_UART_BaudSet(&uart_ctrl, (void *) &uart_baud);

bootloaders/SANTIAGO/dfu_leven.hex renamed to bootloaders/UNO_R4/dfu_wifi.hex

@@ -0,0 +1,20 @@
+`Arduino_CAN`
+=============
+### How-to-`SocketCAN`
+* Connect your [SocketCAN](https://en.wikipedia.org/wiki/SocketCAN) capable CAN/USB dongle to the PC and configure it.
+```bash
+sudo ip link set can0 type can bitrate 250000
+sudo ip link set up can0
+```
+* Install can-utils for cansend/candump:
+```bash
+sudo apt-get install can-utils
+```
+* Transmit CAN frames via [`cansend`](https://manpages.ubuntu.com/manpages/lunar/man1/cansend.1.html):
+```bash
+cansend can0 1F334455#1122334455667788
+```
+* Display received CAN frames via [`candump`](https://manpages.ubuntu.com/manpages/lunar/man1/candump.1.html):
+```bash
+candump can0
+```

cores/arduino/Serial.cpp

@@ -0,0 +1,66 @@
+/*
+  Watchdog Refresh
+
+  This sketch shows how to enable the watchdog and
+  refresh the timer to avoid resets
+
+  Watchdog intervals are limited to 7 timeout periods
+  the library will select the best clock divisor and timeout
+  according to the selected wdtInterval.
+
+  UNO R4 min wdtInterval 1ms / max wdtInterval 5592ms
+  Comment out Serial.print() in the setup to make it work with
+  small intervals
+
+  Portenta C33 min wdtInterval 1ms / max wdtInterval 2684ms
+
+  Circuit:
+   - Portenta C33
+   - UNO R4
+*/
+
+#include <WDT.h>
+
+const long ledInterval = 1000;
+unsigned long ledMillis = 0;
+bool ledState = true;
+const long wdtInterval = 2684;
+unsigned long wdtMillis = 0;
+
+void setup() {
+  Serial.begin(9600);
+  while (!Serial);
+
+  pinMode(LED_BUILTIN, OUTPUT);
+
+  if(wdtInterval < 1) {
+    Serial.println("Invalid watchdog interval");
+    while(1){}
+  }
+
+  if(WDT.begin(wdtInterval)) {
+    Serial.print("WDT interval: ");
+    WDT.refresh();
+    Serial.print(WDT.getTimeout());
+    WDT.refresh();
+    Serial.println(" ms");
+    WDT.refresh();
+  } else {
+    Serial.println("Error initializing watchdog");
+    while(1){}
+  }
+}
+
+void loop() {
+  if(millis() - ledMillis >= ledInterval) {
+    digitalWrite(LED_BUILTIN, ledState);
+    ledState = !ledState;
+    ledMillis = millis();
+  }
+
+  if(millis() - wdtMillis >= wdtInterval - 1) {
+    WDT.refresh(); // Comment this line to stop refreshing the watchdog
+    wdtMillis = millis();
+  }
+
+}