Hi folks.
I have a real time clock based on the basic 8052 to control the time entrance of the employes on a company.The circuit is wire wrapped .The serial port reads a barcode and some control bytes from a host PC.It was working very well, but now, after the initialization, all variables and the math calculation (cos, sin, etc) change its values anytime. If I have a line like : 10 a=1: if a<>a then stop, the program stops running.It also corrupts all the data read from the EPROM.
Any help will be welcomed.
Thanks for all.