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i've made some progress since my previous entries. using the visual dsp++ environment, i burned 3 executables on 21065L ezkit eprom. using the loader utility, i put one executable in id#0, the second executable in id#1, and the third executable in id#2. in my original source file (065L_PROM.ASM), the instructions that determines the id stored in R0 is the following: R0=DM(SYSTAT); R0XT R0 BY 8:3; since i want the booting to be controlled by flag0, flag1, and flag2, i converted the code to the following: R0=ASTAT; R0XT R0 BY 16:3; R0=R0+1; R7=6; R0=CLIP R0 BY R7; now when i boot from the eprom, the first executable (id#0)runs, but i can't toggle to the 2nd and 3rd executable with the flag buttons....any suggestions??? |
multiple application on single boot prom
Started by ●November 1, 2002
