Cypress - AN2034

Below are all the different types of Cypress. Select the device of your choice, to download the manual

Contents

User Interface Keypad Scan PSoC Style AN2034 Author Dave Van Ess Associated Project Yes Associated Part Family CY8C20x34 CY8C21x23 CY8C21x34 CY8C23x33 CY8C24x23A CY8C24x94 CY8C27x43 CY8C29x66 GET FREE SAMPLES HERE Software Version PSoC Designer 5 0 Associated Application Notes AN2354 Application Note Abstract X Y matrix keypads are an inexpensive interface enabling interaction with microcontroller based products This application note shows how the PSoC microcontroller s unique I O structure can build a keypad scan routine that is fast uses minimal RAM resources and operates in a polled or interrupt mode A function callable by either C or assembly language is also presented Introduction An X Y keypad enables use of N column l ...