Steins7
5e4d87474a
A while back, macros had to be put in place to avoid letting the compiler directly use the bitfields. This was necessary because the compiler used strb instruction which only write bytes. On the AHB bus, byte writes are transformed into word writes by repeating the byte, which caused mayhem in the registers. After a lot of research, turns out the packed attribute stops the compiler from does optimal (word) writes and isn't needed anyway. Removing them fixes the issue
191 lines
3.3 KiB
C
191 lines
3.3 KiB
C
/** @file exti_regs.h
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* Module defining the EXTI registers
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*
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* Mainly made to be used by the exti module. It is recommanded to go through
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* the functions provided by that module instead of directly using the registers
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* defined here.
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*/
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#ifndef _EXTI_REGS_H_
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#define _EXTI_REGS_H_
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//--includes--------------------------------------------------------------------
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#include "stdint.h"
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//--type definitions------------------------------------------------------------
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#define EXTI_BASE_ADDRESS 0x40010400
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union EXTI_IMR {
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struct {
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uint32_t MR0:1;
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uint32_t MR1:1;
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uint32_t MR2:1;
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uint32_t MR3:1;
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uint32_t MR4:1;
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uint32_t MR5:1;
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uint32_t MR6:1;
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uint32_t MR7:1;
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uint32_t MR8:1;
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uint32_t MR9:1;
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uint32_t MR10:1;
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uint32_t MR11:1;
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uint32_t MR12:1;
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uint32_t MR13:1;
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uint32_t MR14:1;
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uint32_t MR15:1;
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uint32_t MR16:1;
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uint32_t MR17:1;
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uint32_t MR18:1;
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uint32_t reserved1:13;
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};
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uint32_t word;
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};
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union EXTI_EMR {
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struct {
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uint32_t MR0:1;
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uint32_t MR1:1;
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uint32_t MR2:1;
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uint32_t MR3:1;
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uint32_t MR4:1;
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uint32_t MR5:1;
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uint32_t MR6:1;
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uint32_t MR7:1;
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uint32_t MR8:1;
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uint32_t MR9:1;
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uint32_t MR10:1;
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uint32_t MR11:1;
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uint32_t MR12:1;
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uint32_t MR13:1;
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uint32_t MR14:1;
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uint32_t MR15:1;
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uint32_t MR16:1;
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uint32_t MR17:1;
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uint32_t MR18:1;
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uint32_t reserved1:13;
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};
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uint32_t word;
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};
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union EXTI_RTSR {
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struct {
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uint32_t TR0:1;
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uint32_t TR1:1;
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uint32_t TR2:1;
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uint32_t TR3:1;
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uint32_t TR4:1;
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uint32_t TR5:1;
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uint32_t TR6:1;
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uint32_t TR7:1;
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uint32_t TR8:1;
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uint32_t TR9:1;
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uint32_t TR10:1;
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uint32_t TR11:1;
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uint32_t TR12:1;
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uint32_t TR13:1;
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uint32_t TR14:1;
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uint32_t TR15:1;
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uint32_t TR16:1;
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uint32_t TR17:1;
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uint32_t TR18:1;
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uint32_t reserved1:13;
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};
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uint32_t word;
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};
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union EXTI_FTSR {
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struct {
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uint32_t TR0:1;
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uint32_t TR1:1;
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uint32_t TR2:1;
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uint32_t TR3:1;
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uint32_t TR4:1;
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uint32_t TR5:1;
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uint32_t TR6:1;
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uint32_t TR7:1;
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uint32_t TR8:1;
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uint32_t TR9:1;
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uint32_t TR10:1;
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uint32_t TR11:1;
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uint32_t TR12:1;
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uint32_t TR13:1;
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uint32_t TR14:1;
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uint32_t TR15:1;
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uint32_t TR16:1;
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uint32_t TR17:1;
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uint32_t TR18:1;
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uint32_t reserved1:13;
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};
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uint32_t word;
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};
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union EXTI_SWIER {
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struct {
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uint32_t SWIER0:1;
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uint32_t SWIER1:1;
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uint32_t SWIER2:1;
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uint32_t SWIER3:1;
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uint32_t SWIER4:1;
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uint32_t SWIER5:1;
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uint32_t SWIER6:1;
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uint32_t SWIER7:1;
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uint32_t SWIER8:1;
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uint32_t SWIER9:1;
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uint32_t SWIER10:1;
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uint32_t SWIER11:1;
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uint32_t SWIER12:1;
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uint32_t SWIER13:1;
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uint32_t SWIER14:1;
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uint32_t SWIER15:1;
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uint32_t SWIER16:1;
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uint32_t SWIER17:1;
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uint32_t SWIER18:1;
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uint32_t reserved1:13;
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};
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uint32_t word;
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};
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union EXTI_PR {
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struct {
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uint32_t PR0:1;
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uint32_t PR1:1;
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uint32_t PR2:1;
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uint32_t PR3:1;
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uint32_t PR4:1;
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uint32_t PR5:1;
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uint32_t PR6:1;
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uint32_t PR7:1;
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uint32_t PR8:1;
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uint32_t PR9:1;
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uint32_t PR10:1;
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uint32_t PR11:1;
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uint32_t PR12:1;
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uint32_t PR13:1;
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uint32_t PR14:1;
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uint32_t PR15:1;
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uint32_t PR16:1;
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uint32_t PR17:1;
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uint32_t PR18:1;
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uint32_t reserved1:13;
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};
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uint32_t word;
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};
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struct EXTI {
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union EXTI_IMR IMR;
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union EXTI_EMR EMR;
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union EXTI_RTSR RTSR;
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union EXTI_FTSR FTSR;
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union EXTI_SWIER SWIER;
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union EXTI_PR PR;
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};
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//--functions-------------------------------------------------------------------
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#endif //_EXTI_REGS_H_
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