Posted inMicroprocessor and Microcontroller
LCD-SPEAK
So, let's test this code! If the display is wired up correctly, and all the…
Posted inMicroprocessor and Microcontroller
LEDS
The two LEDs on the STM32 boards are pretty minimal. The docking board parallels those…
Posted inMicroprocessor and Microcontroller
LCD Display
An HD44780-type display can perform a number of functions, but we will just focus on…
Posted inMicroprocessor and Microcontroller
Tangent: Software Delays – Milliseconds
Remember that up to now we didn't much care what numbers we had to feed…
Posted inMicroprocessor and Microcontroller
LEDS
The two LEDs on the STM32 boards are pretty minimal. The docking board parallels those…
Posted inMicroprocessor and Microcontroller
When 2 Leds Just Don’t Cut It Anymore
So far, we've done everything in this series using two LEDs and one button. I'm…
Posted inMicroprocessor and Microcontroller
The ISR
Now it's time to write the interrupt service routine. For the AVR, a negative edge…
Posted inMicroprocessor and Microcontroller
What Should An Isr Do?
In most cases the answer is, as little as possible. An ISR should do what…
Posted inMicroprocessor and Microcontroller
Where Are The Return Address And Register Data Saved?
As part of the automatic response to an interrupt request, the uC hardware will save…
Posted inMicroprocessor and Microcontroller
It’s Too Soon To Talk About Interrupts!
That, at least, could be one reaction to this chapter. But over the years I've…