Arduino Renesas fsp Boards with modified LwIpWrapper

A fork of the Arduino Renesas core with a modified LwIpWrapper library. The lwipClient::write() method is patched to correctly report the number of bytes written, and an lwipClient::availableForWrite() method is implemented to report the space available in the buffer instead of 0.

Correct linker flags are only configured for the Portenta C33.

Installation

1. Find the path of your Arduino sketchbook folder in the Arduino IDE under Settings > Sketchbook location. Within this folder, create a new folder named hardware if it does not already exist.

2. Install the Arduino Core API: Under the hardware folder from step 1, create a new folder named arduino, if it does not already exist. Navigate to this folder in a terminal and clone the Arduino Core API there:

git clone https://github.com/arduino/ArduinoCore-API.git

3. Install the modified Arduino Renesas core: Under the hardware folder from step 1, create a new folder named thesoftlaboratory. Navigate to this folder in a terminal and clone this repository there:

git clone --recurse-submodules -j8 https://github.com/iofarm/ArduinoCore-renesas.git renesas_portenta

Note that the --recurse-submodules option is required so that the dependencies are also cloned.

4. When building your sketch, make sure to use the modified Renesas core instead of the default; in the Arduino IDE, this will be the core with "(in Sketchbook)" at the end of the name.