How should a vending-machine processor be selected?
Select a vending-machine processor against the complete application and a documented board configuration, rather than treating a processor name or GPU label as a performance guarantee. Record the exact board model, PCB revision, processor, memory, storage, software build and connected equipment before comparing samples. A model number and a processor keyword on a catalogue page do not establish one verified configuration.
Which application workloads matter?
Describe the ordering interface, payment application, product catalogue, media playback, network management and any camera or recognition workload. State which functions must run together. List the display resolution, touch input, content format, application startup behavior and the responsiveness required for the intended workflow.
How should graphics performance be evaluated?
Run the actual user interface, animation, video and display layout on the proposed software release. Test screen transitions, rotation, touch response and content playback while the other required applications and peripherals are active. Agree measurable acceptance criteria and record the test conditions. Maximum capabilities quoted for a processor are not a substitute for this complete-system test.
Which peripherals belong in the comparison?
Use the intended payment terminal, scanner, printer, cash-handling equipment and vending controller. Confirm connector definitions, voltage levels, protocol ownership and software interfaces from controlled documents. Exercise peripheral reconnect, transaction interruption and recovery under the intended power and network conditions. Confirm responsibility for payment-system qualification with the relevant parties.
How should power and thermal constraints be checked?
Document the input supply, wiring, enclosure, peripheral loads and operating environment. Evaluate startup and peak-load behavior with the actual configuration. Record power and temperature measurements during the agreed workload and explain any operating limits. Do not transfer an input-voltage range or temperature rating from a different board variant.
What evidence supports an approval?
- The model-specific specification and PCB revision.
- The processor and memory/storage configuration actually supplied.
- The software build, application versions and recovery procedure.
- The display and peripheral list used in the sample test.
- Recorded conditions, results, failures and accepted limitations.
- Written configuration, maintenance, delivery and change-control terms.
This page defines an evaluation method; it does not resolve an undocumented processor or graphics configuration by guesswork. Use the BSP acceptance worksheet, quality-record checklist and product document directory, or request the controlled specification before approval.
