Case Study
Wi-Fi PCBA Automated Functional Test Station
This case focuses on programming plus RF plus functional plus server integration. Project test items include UART & GEA communication, online programming through JTAG, EEPROM data writing, serial Flash writing, Wi-Fi transmit power, frequency verification, transmit signal verification and joint test / heartbeat with a remote server.
Case system visualWi-Fi PCBA automated test station architecture diagram
Test SoftwareInstrumentationFixtureDUTTraceability
Software, instrumentation, fixture, DUT and production data integration.Project Overview
Automated test station case for Wi-Fi PCBA covering online programming, EEPROM/Flash writing, RF transmit power/frequency verification, UART/GEA communication and remote server joint test.
Testing Requirements
- Perform online programming through JTAG.
- Write data to EEPROM and serial Flash.
- Verify Wi-Fi transmit power, frequency and project-defined RF transmit signal requirements.
- Perform joint test / heartbeat with a remote server.
System Architecture
PCBAOnline ProgrammingEEPROM / Flash ConfigurationWi-Fi TX Power / FrequencyFunctional CommunicationRemote Server InteractionResult
Key Test Items
UART & GEA CommunicationOnline Programming through JTAGWrite Data to EEPROMWrite Serial FlashWi-Fi Transmit PowerFrequency VerificationTransmit Signal VerificationJoint Test / Heartbeat with Remote Server
Engineering Challenges
- The test flow includes programming, memory configuration, RF verification and functional communication.
- Local test software needs system-level validation with a remote server.
- RF transmit signal verification follows project-defined requirements and is not stated as certification testing.
Implementation
- NI LabVIEW organizes test flow and result recording.
- JTAG programming, UART/GEA communication, memory writing and RF verification are integrated into one station flow.
- Remote server interaction completes joint test / heartbeat validation.
Engineering Outcome
- An automated functional test station was built for Wi-Fi PCBA.
- The project covers programming, RF, functional communication and server interaction.
- The case shows that testing can extend beyond local instruments into network server validation.
Related Solutions
Related Engineering Capabilities
ProgrammingRFCommunicationSoftwareProduction Integration
View Engineering Capabilities Discuss a Similar Test Requirement
If your DUT, coverage, cycle time or data requirements are similar, we can start from interfaces and test strategy to evaluate the architecture.
Contact onTAP