joshijay85
Newbie level 1
hi
I have also made a clcok project with mu 89c51 and PCF 8583, but the problem is that lcd display only 2 times 1's instead of 7 times....for rtc test programming. I dont know why it heppenes, i have used 32khz cristal . can any one helps to give me exact programming?
my project is microcontroller based annunciator.
so interfacing lcd(20x2)+rtc(pcf8583)+shift reg for mode zero(using programme from kennath j.ayala page-295)...
use port 1.0-sda and port 1.1 -scl for rtc inrefacing 89c51....use port 0 for acknowldege ment for mode zero-p3.2 to 3.0 for shift register to 89c51
regards
I have also made a clcok project with mu 89c51 and PCF 8583, but the problem is that lcd display only 2 times 1's instead of 7 times....for rtc test programming. I dont know why it heppenes, i have used 32khz cristal . can any one helps to give me exact programming?
my project is microcontroller based annunciator.
so interfacing lcd(20x2)+rtc(pcf8583)+shift reg for mode zero(using programme from kennath j.ayala page-295)...
use port 1.0-sda and port 1.1 -scl for rtc inrefacing 89c51....use port 0 for acknowldege ment for mode zero-p3.2 to 3.0 for shift register to 89c51
regards