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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PIC16 датащи(PDF) 101 Page - Microchip Technology |
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PIC16 датащи(HTML) 101 Page - Microchip Technology |
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101 / 418 page  2011-2013 Microchip Technology Inc. DS40001609C-page 101 PIC16(L)F1508/9 FIGURE 10-6: FLASH PROGRAM MEMORY WRITE FLOWCHART Start Write Operation End Write Operation CPU stalls while Write operation completes (2 ms typical) No delay when writing to Program Memory Latches Determine number of words to be written into Program or Configuration Memory. The number of words cannot exceed the number of words per row (word_cnt) Last word to write ? Disable Interrupts (GIE = 0) Select Program or Config. Memory (CFGS) Select Row Address (PMADRH:PMADRL) Select Write Operation (FREE = 0) Load Write Latches Only (LWLO = 1) Enable Write/Erase Operation (WREN = 1) Load the value to write (PMDATH:PMDATL) Update the word counter (word_cnt--) Unlock Sequence (See Note 1) Increment Address (PMADRH:PMADRL++) Write Latches to Flash (LWLO = 0) Unlock Sequence (See Note 1) Disable Write/Erase Operation (WREN = 0) Re-enable Interrupts (GIE = 1) Yes No Rev. 10-000049A 7/30/2013 Note 1: See Figure 10-3. |
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