Brown-Out Reset – an Update Break Points 7/8/2014 2 comments When using brown-out reset circuits, the bottom line is that on many MCUs you can’t use the A/D to monitor Vdd during flash writes unless there’s some way to simulate the expected load. As always, do a careful, worst-case engineering analysis.
Fifty Years of TTL Break Points 6/25/2014 26 comments Depending on your source, 2014 marks the 50th anniversary of TTL (transistor-transistor logic). Although some say 1961 is the birth year, TI released the 5400 family in 1964 and the 7400 series in plastic two years later. Since TTL is synonymous with 5400 and 7400, why not offer 50th birthday congratulations?
BASIC at 50: Bad Trip or Bad Rap? Break Points 5/7/2014 40 comments Is it true that a person reared on BASIC, lingua franca of the eight-bit computer world, is forever damned by the experience? Jack Ganssle,the embedded systems guru, shares his experience with BASIC on its 50th anniversary.
How Much Energy Can You Really Get From a Coin Cell? Break Points 4/24/2014 6 comments Motivated by what he considers outrageous claims made by a number of MCU vendors that their processors can run for several decades from a single CR2032 cell, Jack Ganssle compares coin cell batteries to see if the claims are legit.
Where's the CPU? Break Points 4/14/2014 8 comments Jack Ganssle is having fun with Raspberry Pi and other popular boards by asking fellow engineers to find the CPU. Most can't.
Decoding Time to Market Break Points 9/19/2013 3 comments What's the fastest way to get a firmware project out the door? Ship junk. What's the second-fastest way to market? Here's how to predict your time to market by looking at code practices.