Method for controlling operation of twin set-top-box having single flash memory and two processors sharing the flash memory

The present invention is a first step of storing, connect the flash memory to the processor A when the set-top box operating software of the flash memory to the claim 1 SDRAM connected to a corresponding processor A, and then stores the software in the claim 1 SDRAM said flash connecting the memory to the processor B and the second step and the different processors to store the software in the flash memory to the claim 2 SDRAM connected to the processor B a, B one by software stored in the SDRAM connected to the processor, or as including a third step of controlling the operation of a peripheral circuit for processing the broadcasting signal received via the two tuners, to then temporarily store the upgraded software in one of the flash memory to the two SDRAM in the connected processor receiving a broadcast signal of the second channel by at the same time by controlling the entire operation of the set-top box for processing It can lower the production cost of the top box. Processor, flash memory, SDRAM, wake up, OTA.