New product features, certification, increased performance and quicker design cycles are pressuring device manufacturers to reduce costs and still meet time-to-market requirements. Considerations like balancing increased performance and demands for lower design, manufacturing costs, freeing up engineering resources, or selecting the right OS and BSPs complicate the decision-making process. Sign up now for an innovative webinar using an on-line tool that calculates when and if you should buy or build.
The Multi-purpose PWM Wave Shaper utilizes four identical boards, each with a 74AXP1G57GM chip and a 4k7 pull-down resistor on every input. The circuit is designed using all four AXP chips that are capable of producing a signal with a 0, 25, 50, 75 or 100% duty-cycle. The system is capable of switching between the five signals through a single simple five-position switch making it capable of five inputs that each selects a different duty-cycle.
The 74AXP1G57 configurable logic is used as the basic component for the design of a Light Sensor and a Photosound device in this project. The light sensor is designed using a 74AXP1G57 configurable logic, photoresistor and capacitor, which is a system designed for luminance measurement in low voltage systems. Photosound on the other hand was designed using the combination of two light-dependent generators using Ex-NOR gates to intermodulate output waves making it possible to obtain nearly 0 Hz frequency or some beat frequency.
Part 3: Does using a module let you save costs over the complete lifetime of the project?
1. Concept phase: Feasibility study, analysis of components, time and personnel requirements is approximately $70,000 for an i.MX6 based project. This can be reduced to $27,000 if using an embedded module.
2. Circuit diagram: Preparing a circuit diagram with an integrated processor and memory is going to cost $30,000. Using an embedded module reduces the complexity and can bring this cost down to $6,500.
3. Layout: Since the application board is simpler to put together with a modular design, $13,500 to $15,000 will usually suffice. With an integrated processor costs can be double.
4. Software: The module is delivered with BSPs for a number of different OSs and/or RTOSs. If these have to be developed then the cost can be at least $50,000.
5. Testing: As a rule integrated designs require more complex testing and cost difference can be as much as $30,000.
Bottom Line: The additional costs for an integrated design can amount to $300,000 not counting the costs of redesigns and interest charges. Comments
A long time ago in a galaxy far, far away…embedded devices were single-threaded, standalone, and relatively straightforward to design. Those days are clearly over. With 50 billion connected devices predicted for 2020—the so-called Internet of Things (IoT)—even the most deeply embedded systems will face issues with scalability, modularity, connectivity, and reliability that were far more manageable in the past.
There are numerous on-ramps to the IoT, but choosing between them may require some rethinking. A recent Micrium white paper sorts out the issues and suggests some strategies for integrating your devices into the IoT. More