Delkin Blog

Technical Success Stories: Solving SD Card Application Software Optimization

 

A customer approached Delkin for assistance after their embedded computing device provided incomplete data due to repeated SD card failures. Their customers were continually reaching out to complain about data corruption and device failures, and the company was struggling to identify the source of the issue. They asked Delkin for help in solving this problem.

 

Customer Story

The company in question was surprised to experience a series of problems with their most popular and profitable product. The failures began to occur after the company chose to extend the battery life of the device. They determined that they could get more battery life by turning off the SD card. They did so, and testing showed that turning the SD card off extended the operational life of the battery between charges. When this change went into effect, the power rating improved, but data corruption and failure reports started to come in.

 

Delkin Discovery

Delkin’s engineering team worked with the customer to figure out why random SD cards were showing corruption at unpredictable intervals. To do this, Delkin’s team worked to understand the usage model and to track bus activity between the host and the SD card.

 

Through this research, Delkin’s engineers found the data corruption of the SD cards was caused by the change to the software that the company had made. The customer was unaware that the cards could draw enough power to keep the CPU alive from leakages from signal pins. This allowed updating and data consolidation functions to occur, but when a write operation occurred, the power could drop and trigger errors.

 

Delkin Solution

Delkin recommended that the customer stop turning off the power supply to the SD cards and instead modify their application so that the signal pins were driven low before power was turned off. This would prevent data corruption issues and would even allow the device to save more power, since it would stop power leakages.

 

The customer was thrilled with the solution and was able to modify their software to change the SD card functionality. The new code was loaded and tested, and the units were updated and shipped out within a few days. This restored customers’ confidence and boosted the revenue stream for that product line.

 

Lessons Learned

NAND flash memory cards are complex, so industrial OEMs should work with their flash storage provider to select the best NAND flash option for maximum performance. By working with the customer, Delkin was able to prevent data corruption, reduce power consumption and power fail, and optimize the card application software.

 

Lean on Delkin’s Technical Team

If you have a host storage problem, the Delkin Customer Applications Team can be a trusted adviser. We’ve solved hundreds of complex host failure issues and look forward to understanding your needs for rugged flash-based storage.

 

Contact

  • This field is for validation purposes and should be left unchanged.

 

Related Posts

Temperature Considerations for SSD- Hot Climate
The Benefits of Industrial Temperature for Industrial Applications

  Flash storage solutions come in two categories—commercial and industrial. These two product grades are...

Digital Gaming Applications
Industrial CompactFlash (CF) Cards: The Perfect Fit for Gaming Applications

  Behind the bright lights and ringing sounds of casinos are the flash storage cards...

A Case Study in Application Design That Considers Technological Advancements

  When designing state-of-the-art technological applications, designers and engineers are faced with a major challenge—creating...

Healthcare Industrial Flash Storage
Modernize Your Healthcare Data Storage with Industrial Flash

  The healthcare community relies heavily on tech for daily functions, from reading test results...

Delkin Industrial Application Lifecycle Management
Product Life Cycle Management FAQs

  When it comes to flash storage, developing a world-class application isn’t enough. Life cycle...

Person on laptop evaluating SMART data
Customer Success Story: Enhance Embedded Memory with SMART Cards

Flash storage offers a modernized opportunity to store and access data at a high...

Ruggedized SSDs- Technology for Industrial Users: What You Need to Know

  SSDs are so ubiquitous today that you may be surprised to learn that they...

Delkin Devices Technical Support: We’re Here to Help

  Delkin Devices is a global industrial Flash memory and storage provider with the best...

Power Fail
Understanding Power Failures in Flash Storage

  The Cost of Power Failures  For industrial applications, the cost of power failures can be...

Ruggedized SSDs- Technology for Industrial Users: What You Need to Know

  SSDs are so ubiquitous today that you may be surprised to learn that they...