System Configuration Controller (Syscfg); Syscfg Firmware Driver Registers Structures; Syscfg_Typedef; Syscfg Firmware Driver Api Description - ST STM32F31xx User Manual

UM1581
21

System configuration controller (SYSCFG)

21.1

SYSCFG Firmware driver registers structures

21.1.1

SYSCFG_TypeDef

SYSCFG_TypeDef is defined in the stm32f30x.h
Data Fields

__IO uint32_t CFGR1

__IO uint32_t RCR

__IO uint32_t EXTICR

__IO uint32_t CFGR2
Field Documentation

__IO uint32_t SYSCFG_TypeDef::CFGR1


__IO uint32_t SYSCFG_TypeDef::RCR


__IO uint32_t SYSCFG_TypeDef::EXTICR[4]


__IO uint32_t SYSCFG_TypeDef::CFGR2

21.2

SYSCFG Firmware driver API description

The following section lists the various functions of the SYSCFG library.
21.2.1

How to use this driver

The SYSCFG registers can be accessed only when the SYSCFG interface APB clock is
enabled.
To enable SYSCFG APB clock use:
RCC_APBPeriphClockCmd(RCC_APBPeriph_SYSCFG, ENABLE);
21.2.2

SYSCFG Initialization and Configuration functions


SYSCFG_DeInit()

SYSCFG_MemoryRemapConfig()

SYSCFG_DMAChannelRemapConfig()

SYSCFG_TriggerRemapConfig()

SYSCFG_EncoderRemapConfig()

SYSCFG_USBInterruptLineRemapCmd()
SYSCFG configuration register 1, Address offset: 0x00
SYSCFG CCM SRAM protection register, Address offset: 0x04
SYSCFG external interrupt configuration registers, Address offset: 0x14-0x08
SYSCFG configuration register 2, Address offset: 0x18
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System configuration controller (SYSCFG)
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