Hello people Could someone please tell me how to do this: 'The following assembly code must be included in your application. Its purpose is to set an LJMP into the AutoVector table at address 4000h..' cseg at 43h ljmp 4000h end It is taken from an Ap note for the Cypress EZ-USB FX family. There is a thread which does this (more or less) but I do not understand it (I am new to this compiler). Any help would be kindly received. Thanks in advance Richard
Look in your C51 manual: Interrupt Functions, page 125 in my version. All you need to do is use the correct interrupt number. Number 8 in this case. C51 will insert the required jump for you.