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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AN2540 датащи(PDF) 22 Page - STMicroelectronics |
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AN2540 датащи(HTML) 22 Page - STMicroelectronics |
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22 / 25 page  Embedded application aspects AN2540 - Application note 22/25 4.4.2 Program timing The following table gives an idea about the emulated EEPROM write time related to the current implementation. It is clear that updating a variable with the 1st method scheme takes less time than with the 2nd method scheme since only the corresponding allocated memory space is accessed in the first case and not the whole sector. Table 9. Write time related to the current implementation Implemented scheme Parameter Write time (typical) Write time (max)(1) 1. This is the time taken to update a variable that makes a call to the EepromSectorTransfer(..) function. It is nearly equal to the sector erase time. 1st method scheme 20 µs 300 ms 2nd method scheme 30 µs 300 ms |
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