发明名称 FLASH MEMORY WRITE DATA AND FLASH MEMORY LOADING EQUIPMENT
摘要 PROBLEM TO BE SOLVED: To surely detect the write error of a flash memory, data destruction and the write of an unsuitable program by setting sum value adjustment data for turning the sum value of data to a specified value inside the flash memory. SOLUTION: When the power of this flash memory loading equipment is turned ON, a CPU 1 calculates the sum value of the flash memory 4, discriminates whether or not the obtained sum value and the specified value intrinsic to the flash memory loading equipment provided inside a ROM 2 match, and when the sum value and the specified value do not match, since the flash memory 4 is abnormal or the program unsuitable for the flash memory loading equipment is present inside the flash memory 4, transmits the write request signals of a host device flash memory 4 through a communication control part 5. Then, in the case that flash memory write data are sent from a host device, the received flash memory write data are written to the flash memory 4.
申请公布号 JPH10333992(A) 申请公布日期 1998.12.18
申请号 JP19970153090 申请日期 1997.05.28
申请人 CANON INC 发明人 SHIMAMURA YOSHIYUKI
分类号 B41J29/38;G06F12/16;G11C16/02 主分类号 B41J29/38
代理机构 代理人
主权项
地址