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Embedded Systems Development for NMEA 2000
Embedded systems development for the NMEA 2000 (National Marine Electronics Association) protocol presents unique challenges and opportunities in the field of marine electronics. NMEA 2000 is a standardized communication protocol designed to enable robust and reliable data exchange among marine instruments and devices. This essay explores the fundamental aspects of developing embedded systems for NMEA [...]
JCOM1939 Monitor Software - A Critical SAE J1939 Diagnostic and Analysis Tool
The JCOM1939 Monitor Software is a specialized tool designed to interface with and monitor data on the SAE J1939 communication network. SAE J1939 is a standardized protocol commonly used in heavy-duty vehicles, agriculture equipment, and industrial machinery for onboard diagnostics and data communication. This essay explores the features, applications, and significance of JCOM1939 Monitor Software in [...]
ESP32 Processor: CAN Bus Topology and Termination Resistors
This post is an excerpt from our application note Controller Area Network (CAN) Development with ESP32. It is my experience that newcomers to the technology overlook the importance of termination resistors. Missing or misplaced resistors can lead to transmission errors or even prevent transmission altogether. The general rule is that if you connect to an existing, fully [...]
ESP32 Processor: Adding CAN/CAN-FD Controllers per SPI Port
This post is an excerpt from our application note Controller Area Network (CAN) Development with ESP32. The internal CAN controller SJA1000 does not support CAN-FD and is not CAN-FD tolerant. To use CAN-FD with the ESP32, you need to employ CAN-FD breakout boards that are accessible per the ESP32’s SPI ports. Note: The SPI ports are not [...]
ESP32 Processor: Adding a CAN Bus Transceiver
This post is an excerpt from our application note Controller Area Network (CAN) Development with ESP32.As a quick reference, I want to address the need for a CAN transceiver. As mentioned in the previous chapter, the ESP32 has an internal CAN Bus controller. However, this doesn't mean you can directly connect it to a network. You [...]
Classical CAN (CC), the Original CAN Bus Technology
This post is an excerpt from our application note Controller Area Network (CAN) Development with ESP32. Note: The term “Classical CAN” was introduced in the ISO 11898-1: 2016 Standard. Classical CAN represents the basis for CAN FD (and CAN XL), meaning they share the same features and advantages, as explained in the previous chapter. While CAN FD adds [...]
CAN FD (Controller Area Network Flexible Data Rate)
This post is an excerpt from our application note Controller Area Network (CAN) Development with ESP32. CAN FD (Controller Area Network Flexible Data Rate) is an extension of the original CAN bus protocol. It was created to provide increased bandwidth within automotive and industrial networks. It brings application software closer to "real-time" by minimizing delays between instruction [...]
ESP32 Programming - Classical CAN to Bluetooth Gateway
In this post, I will present a CAN to Bluetooth gateway based on the ESP32 processor. The above image shows my test setup using our ESP32 WiFi, Bluetooth Classic, BLE, CAN Bus Module, a CAN-Bus Hub With 7 Ports And DC Power Connection, and the PCAN-USB Pro. As its description implies, the ESP32 module provides all necessary [...]
PCI Express Board Integrates 4 High-Speed CAN/CAN FD Ports
Kvaser has introduced their compact M.2 PCIe, a highly integrated embedded CAN Bus board that adds four high-speed CAN/CAN FD channels to any host computer with PCI Express connectivity and an available B or M keyed M.2 slot. The embedded board provides four distributed CAN CC (Classic CAN) or CAN FD transceivers, adding CAN CC and CAN [...]
ESP32: CAN Bus Programming with MCP2515 and MCP2517FD
For good reasons, the ESP32 processor is a prevalent choice for embedded hardware development. Besides considerable memory resources, it provides various hardware features for many applications, most prominently the Internet of Things (IoT). All that comes with more than reasonable price tags, specifically when you use one of the multiple ESP32 development modules. And since [...]