How to display digits on seven segments display in Assembly Language
7-segment Display
An LED or Light Emitting Diode, is a solid state optical pn-junction diode which emits light energy in the form of photons.
The emission of photons from a 7-segment display occurs when the diode junction of each segment is forward biased by an external voltage allowing current to flow across its junction, and in Electronics we call this process electroluminescence.
The actual colour of the visible light emitted by an LED, ranging from blue to red to orange, is decided by the spectral wavelength of the emitted light which itself is dependent upon the mixture of the various impurities added to the semiconductor materials used to produce it.
Light emitting diodes have many advantages over traditional bulbs and lamps, with the main ones being their small size, long life, various colours, cheapness and are readily available, as well as being easy to interface with various other electronic components and digital circuits.
But the main advantage of light emitting diodes is that because of their small die size, several of them can be connected together within one small and compact package producing what is generally called a 7-segment Display.
The Common Anode (CA) – In the common anode display, all the anode connections of the LED segments are joined together to logic “1”. The individual segments are illuminated by applying a ground, logic “0” or “LOW” signal via a suitable current limiting resistor to the Cathode of the particular segment (a-g).
The Common Cathode (CC) – In the common cathode display, all the cathode connections of the LED segments are joined together to logic “0” or ground. The individual segments are illuminated by application of a “HIGH”, or logic “1” signal via a current limiting resistor to forward bias the individual Anode terminals (a-g).
Follow us on Facebook
/ star-technology-5g-114217917006898
Follow us on Twitter
/ startechnolog18
Follow us on Blogger
https://www.blogger.com/blog/posts/34...
Follow us on Tumblr
/ startechnology5g
Follow us on Pinterest
/ startechnology5g
Follow us on Linkedin
/ star-technology-5g-0779661b2
Follow us on Reddit
/ startechnology5g
Follow us on Mix
https://mix.com/startechnology5g
Follow us on Skyrock
https://skyrock.com/m/account/confirm...
#8051microcontroller #electricalengineering #assemblylanguage #electronics101 #microcontroller