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AN2606 Datasheet(PDF) 90 Page - STMicroelectronics |
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AN2606 Datasheet(HTML) 90 Page - STMicroelectronics |
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90 / 155 page  STM32F07xxx devices bootloader AN2606 90/155 DocID13801 Rev 21 Note: After the STM32F07xxx devices have booted in Bootloader mode using USART2, the serial wire debug (SWD) communication is no more possible until the system is reset, because SWD uses PA14 pin (SWCLK) which is already used by the Bootloader (USART2_RX). The system clock is derived from the embedded internal high-speed RC, no external quartz is required for the bootloader execution. I2C1 bootloader I2C1 Enabled The I2C1 configuration is: I2C speed: up to 400 KHz, 7-bit address, slave mode, analog filter ON. Slave 7-bit address: 0b0111011x (where x = 0 for write and x = 1 for read) I2C1_SCL pin Input/Output PB6 pin: clock line is used in open-drain mode. I2C1_SDA pin Input/Output PB7 pin: data line is used in open-drain mode. DFU bootloader USB Enabled USB used in FS mode USB_DM pin Input/Output PA11: USB DM line. USB_DP pin PA12: USB DP line No external pull-up resistor is required. Table 44. STM32F07xxx configuration in System memory boot mode (continued) Bootloader Feature/Peripheral State Comment |
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