Serial Communication
Forwessun provides advanced USB serial communication via UART, enabling serial number programming, boot log checks, and more, while ensuring signal integrity and compatibility with older systems.
USB Serial Communication at Forwessun
At Forwessun, we specialise in creating custom communication solutions for microcontrollers using UART protocols. By integrating USB to RS232 and USB to RS485 converters into our test fixtures, we can offer a wide range of functionality tailored to your requirements. Our expertise ensures smooth and reliable serial communication, critical for programming and testing applications.
Key Features of Our USB Serial Communication Services
- Serial Number Programming: We can program serial numbers and traceability data directly onto your MCU, ensuring precise identification for each unit.
- Built-in Self-Test (BIST) Support: Our custom software can change the state of your BIST program, helping you streamline your testing process.
- Boot Log Processing: Forwessun enables automated processing and checking of your software’s boot log, improving efficiency in debugging and system initialization.
- Stand-Alone Programmer Triggering: We can trigger external programmers within the test system for automated, on-demand programming tasks.
- Barcode Reading Integration: Forwessun’s system can trigger barcode reading devices for efficient tracking and logging, integrated directly into your fixture.
- UART-Controlled Relay Card Operation: We can control on/off switches via UART-controlled relay cards, adding versatility to your testing setup.
Ensuring Signal Integrity
To maintain optimal signal integrity, UART signals are isolated from the tester using relays. This ensures that communication between the tester and your device remains stable and interference-free.
Compatibility and System Requirements
Our custom software is designed to run on systems with Windows XP or newer. This allows for flexibility when working with both legacy and modern systems in your production environment.
Digital Test UART Communication for Older Testers
For older testers lacking USB or spare RS232 ports, Forwessun can leverage the digital resources of a 3070 tester for basic UART communication. This method allows for functional testing without requiring hardware upgrades, offering a cost-effective solution for legacy systems.
Capabilities Include:
- Processing boot logs and checking software initialization processes.
- Triggering barcode readers and other external devices.
- Standalone programmer activation via UART signals.
