STM32F1到 STM32F2系列微控制器应用程序的变迁

July 2011 Doc ID 019001 Rev 1 1/52

AN3427

Application note

Migrating a microcontroller application

from STM32F1 to STM32F2 series

1 Introduction

For designers of STM32 microcontroller applications, it is important to be able to easily

replace one microcontroller type by another one in the same product family. Migrating an

application to a different microcontroller is often needed, when product requirements grow,

the STM32 microcontroller family. Available from www.st.com.

● The STM32F1 family reference manuals (RM0008 and RM0041), the STM32F1

datasheets, and the STM32F1 Flash programming manuals (PM0075, PM0063 and

PM0068).

● The STM32F2 family reference manual (RM0033), the STM32F2 datasheets, and the

STM32F2 Flash programming manual (PM0059).

For an overview of the whole STM32 series and a comparision of the different features of

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

3.2.1 32-bit multi-AHB bus matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.2.2 Adaptive real-time memory accelerator (ART Accelerator™) . . . . . . . . 12

3.2.3 Dual SRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3.12.1 Ethernet PHY interface selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

3.12.2 TIM2 internal trigger 1 (ITR1) remapping . . . . . . . . . . . . . . . . . . . . . . . 37

4 Firmware migration using the library . . . . . . . . . . . . . . . . . . . . . . . . . . 38

4.9.1 Ethernet PHY interface selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

4.9.2 TIM2 internal trigger 1 (ITR1) remapping . . . . . . . . . . . . . . . . . . . . . . . 50

Table 1. STM32 F1 series and STM32 F2 series pinout differences . . . . . . . . . . . . . . . . . . . . . . . . . 6

Table 3. IP bus mapping differences between STM32 F1 and STM32 F2 series. . . . . . . . . . . . . . . 13

Table 10. FLASH differences between STM32 F1 series and STM32 F2 series . . . . . . . . . . . . . . . . 32

Table 11. ADC differences between STM32 F1 series and STM32 F2 series . . . . . . . . . . . . . . . . . . 33

Table 12. PWR differences between STM32 F1 series and STM32 F2 series. . . . . . . . . . . . . . . . . . 35

Table 13. STM32F10x and STM32F2xx FLASH driver API correspondence. . . . . . . . . . . . . . . . . . . 41

Table 14. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Figure 1. Compatible board design: LQFP144 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 2. Compatible board design: LQFP100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 3. Compatible board design: LQFP64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8