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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AS8267 датащи(PDF) 86 Page - ams AG |
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AS8267 датащи(HTML) 86 Page - ams AG |
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86 / 136 page  Data Sheet AS8267 / AS8268 Revision 1.0, 19-Jun-07 Page 86 of 136 General Description Based on the software development flow it only makes sense to lock the software after the development is finished. Therefore we can distinguish between access to the Flash during the software development and access to the Flash after the development is finished. The protection is implemented in such a way that the external Flash memory access (UART1, SPI via SPI_Flash) is blocked. Access during Software Development During the development phase of the meter software each external access to the Flash must be enabled. This means that the listed commands are enabled READ WRITE Byte WRITE Page PAGE ERASE MASS ERASE Access after Software Development After the completion of the software development there are two possible modes of protecting the Flash content. a) Protection via PASSWORD If this mode is selected the listed commands are disabled: READ WRITE Byte WRITE Page PAGE ERASE MASS ERASE b) Protection via PASSWORD and ATTACK COUNTER If this mode is selected the listed commands are disabled and the Attack Counter is enabled: READ WRITE Byte WRITE Page PAGE ERASE MASS ERASE |
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