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M30L0R8000T0ZAQE 데이터시트(PDF) 69 Page - STMicroelectronics |
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M30L0R8000T0ZAQE 데이터시트(HTML) 69 Page - STMicroelectronics |
69 / 83 page 69/83 M30L0R8000T0, M30L0R8000B0 APPENDIX C. FLOWCHARTS AND PSEUDO CODES Figure 20. Program Flowchart and Pseudo Code Note: 1. Status check of SR1 (Protected Block), SR3 (VPP Invalid) and SR4 (Program Error) can be made after each program operation or after a sequence. 2. If an error is found, the Status Register must be cleared before further Program/Erase Controller operations. 3. Any address within the bank can equally be used. Write 40h or 10h (3) AI06170b Start Write Address & Data Read Status Register (3) YES NO SR7 = 1 YES NO SR3 = 0 NO SR4 = 0 VPP Invalid Error (1, 2) Program Error (1, 2) program_command (addressToProgram, dataToProgram) {: writeToFlash (addressToProgram, 0x40); /*writeToFlash (addressToProgram, 0x10);*/ /*see note (3)*/ do { status_register=readFlash (addressToProgram); "see note (3)"; /* E or G must be toggled*/ } while (status_register.SR7== 0) ; if (status_register.SR3==1) /*VPP invalid error */ error_handler ( ) ; YES End YES NO SR1 = 0 Program to Protected Block Error (1, 2) writeToFlash (addressToProgram, dataToProgram) ; /*Memory enters read status state after the Program Command*/ if (status_register.SR4==1) /*program error */ error_handler ( ) ; if (status_register.SR1==1) /*program to protect block error */ error_handler ( ) ; } |
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