ST STM32F205 series Manuals

��� 2018 RM0033 Rev 8 1/1378 1 RM0033 Reference manual STM32F205xx, STM32F207xx, STM32F215xx and STM32F217xx advanced Arm-based 32-bit MCUs Introduction This reference manual targets application developers. It provides complete information on how to use the STM32F205xx, STM32F207xx, STM32F215xx and STM32F217xx microcontroller memory and peripherals. The STM32F205xx, STM32F207xx, STM32F215xx and STM32F217xx will be referred to as STM32F20x and STM32F21x throughout the document, unless otherwise specified. The STM32F20x and STM32F21x constitute a family of microcontrollers with different memory sizes, packages and peripherals. For ordering information, mechanical and electrical device characteristics, please refer to the STM32F20x and STM32F21x datasheets. For information on programming, erasing and protection of the internal Flash memory please refer to the STM32F20x and STM32F21x Flash programming manual. For information on the Arm® Cortex®-M3 core, please refer to the Cortex®-M3 Technical Reference Manual. Related documents Available from www.arm.com: • Cortex®-M3 Technical Reference Manual, available from http://infocenter.arm.com Available from your STMicroelectronics sales office: • STM32F20x and STM32F21x datasheets • STM32F20x and STM32F21x Flash programming manual • Cortex®-M3 programming manual (PM0056) www.st.com

June 2013 DocID15687 Rev 5 1/29 PM0059 Programming manual STM32F205/215, STM32F207/217 Flash programming manual Introduction This programming manual describes how to program the Flash memory of STM32F205/215 and STM32F207/217 microcontrollers. For convenience, these will be referred to as STM32F20x and STM32F21x in the rest of this document unless otherwise specified. The STM32F20x and STM32F21xembedded Flash memory can be programmed using in- circuit programming or in-application programming. The in-circuit programming (ICP) method is used to update the entire contents of the Flash memory, using the JTAG, SWD protocol or the boot loader to load the user application into the microcontroller. ICP offers quick and efficient design iterations and eliminates unnecessary package handling or socketing of devices. In contrast to the ICP method, in-application programming (IAP) can use any communication interface supported by the microcontroller (I/Os, USB, CAN, UART, I2C, SPI, etc.) to download programming data into memory. With IAP, the Flash memory can be re- programmed while the application is running. Nevertheless, part of the application has to have been previously programmed in the Flash memory using ICP. The Flash interface implements instruction access and data access based on the AHB protocol. It implements a prefetch buffer that speeds up CPU code execution. It also implements the logic necessary to carry out Flash memory operations (program/erase). Program/erase operations can be performed over the whole product voltage range. Read/write protections and option bytes are also implemented. www.st.com