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ST10F296 数据表(PDF) 69 Page - STMicroelectronics |
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ST10F296 数据表(HTML) 69 Page - STMicroelectronics |
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69 / 346 page  Obsolete Product(s) - Obsolete Product(s) ST10F296E The bootstrap loader 69/346 Figure 6. ST10F296E new standard bootstrap loader program flow The watchdog timer is disabled, except after a normal reset, so the bootstrap loading sequence is not time limited. Depending on the selected serial link (UART0 or CAN1), pin TxD0 or CAN1_TxD is configured as output, so the ST10F296E can return the acknowledge byte. Even if the internal IFlash is enabled, no code can be executed out of it. Start Falling-edge on UART0 RxD? Falling-edge on CAN1 RxD? Start timer PT0 UART RxD = 0? CAN1 RxD = 1? PT0 > 20? No Count = 1 CAN RxD = 0? No CAN1 RxD = 1? No Count += 1 Count = 5? Stop timer PT0 Initialize CAN Address = FA40h No Stop timer PT0 Message received? No [Address] = MO15_data0 Address = Address + 1 Address = FAC0h? No Glitch on CAN1 RxD Clear timer PT0 No No Start timer T6 UART0 RxD = 1? No Stop timer T6 Initialize UART Send acknowledge Address = FA40h Byte received? No [Address] = S0RBUF Address = Address + 1 Address = FA60h? No Yes Jump to address FA40h UART boot CAN BOOT CAN boot UART boot No Obsolete Product(s) - Obsolete Product(s) |
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