Three-mode storage method for program blocks based on check

A three-mode storage method for program blocks based on check, comprising:

• Dividing, by a processor, a program for injection into N blocks and checking each block to obtain a first checksum;
• Injecting, by the processor, the program for injection and the first checksum twice in a program storage area, wherein the two injected programs are recorded as a main program and a backup program, respectively;
• Dividing, by the processor, the main program into N blocks and checking each block during a program run to obtain a second checksum;
• Dividing, by the processor, the backup program into N blocks and checking each block to obtain a third checksum;
• and
• Comparing, by the processor, the first checksum, second checksum, and third checksum, wherein:
• Performing, by the processor, no operation if all three are consistent;
• and
• Updating, by the processor, the program or checksum if the three are inconsistent and checking again,
• thereby a single-particle protection design requirement of the program and the program storage area against a single-particle effect is met, wherein the single-particle effect is a radiation effect triggered by a single high-energy protons or heavy ions incident on electronic components.