August 2012

Doc ID 17863 Rev 2

1/31

PM0075

Programming manual

STM32F10xxx Flash memory microcontrollers

Introduction

This programming manual describes how to program the Flash memory of STM32F101xx,

STM32F102xx, STM32F103xx, STM32F105xx and STM32F107xx microcontrollers. For

convenience, these will be referred to as STM32F10xxx in the rest of this document unless

otherwise specified.

The STM32F10xxx embedded 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

etc.) to download programming data into memory. IAP allows the user to re-program the

Flash memory 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.

Table 1 lists the microcontrollers and evaluation tool concerned by this programming

manual.

Table 1.

Applicable products

Type

Applicable products

Microcontrollers

STM32F101xx, STM32F102xx, STM32F103xx, STM32F105xx and

STM32F107xx microcontrollers

Evaluation tool

STM3210C-EVAL evaluation board

www.st.com