/** @file usart_regs.h * Module defining the USART registers. * * Mainly made to be used by the usart module. It is recommanded to go through * the functions provided by that module instead of directly using the registers * defined here. */ #ifndef _USART_REGS_H_ #define _USART_REGS_H_ //--includes-------------------------------------------------------------------- #include "reg.h" #include "stdint.h" //--type definitions------------------------------------------------------------ #define USART1_BASE_ADDRESS 0x40013800 #define USART2_BASE_ADDRESS 0x40004400 #define USART3_BASE_ADDRESS 0x40004800 union USART_SR { struct __attribute__((packed)) { uint32_t PE:1; uint32_t FE:1; uint32_t NE:1; uint32_t ORE:1; uint32_t IDLE:1; uint32_t RXNE:1; uint32_t TC:1; uint32_t TXE:1; uint32_t LBD:1; uint32_t CTS:1; uint32_t reserved1:22; }; uint32_t word; }; #define USART_SR_PE reg_def( 0, 1) #define USART_SR_FE reg_def( 1, 1) #define USART_SR_NE reg_def( 2, 1) #define USART_SR_ORE reg_def( 3, 1) #define USART_SR_IDLE reg_def( 4, 1) #define USART_SR_RXNE reg_def( 5, 1) #define USART_SR_TC reg_def( 6, 1) #define USART_SR_TXE reg_def( 7, 1) #define USART_SR_LBD reg_def( 8, 1) #define USART_SR_CTS reg_def( 9, 1) #define USART_SR_reserved1 reg_def(10, 22) union USART_DR { struct __attribute__((packed)) { uint32_t DR:9; uint32_t reserved1:23; }; uint32_t word; }; #define USART_DR_DR reg_def( 0, 9) #define USART_DR_reserved1 reg_def( 9, 23) union USART_BRR { struct __attribute__((packed)) { uint32_t DIV_Fraction:4; uint32_t DIV_Mantissa:12; uint32_t reserved1:16; }; uint32_t word; }; #define USART_BRR_DIV_Fraction reg_def( 0, 4) #define USART_BRR_DIV_Mantissa reg_def( 4, 12) #define USART_BRR_reserved1 reg_def(16, 16) union USART_CR1 { struct __attribute__((packed)) { uint32_t SBK:1; uint32_t RWU:1; uint32_t RE:1; uint32_t TE:1; uint32_t IDLEIE:1; uint32_t RXNEIE:1; uint32_t TCIE:1; uint32_t TXEIE:1; uint32_t PEI:1; uint32_t PS:1; uint32_t PCE:1; uint32_t WAKE:1; uint32_t M:1; uint32_t UE:1; uint32_t reserved1:18; }; uint32_t word; }; #define USART_CR1_SBK reg_def( 0, 1) #define USART_CR1_RWU reg_def( 1, 1) #define USART_CR1_RE reg_def( 2, 1) #define USART_CR1_TE reg_def( 3, 1) #define USART_CR1_IDLEIE reg_def( 4, 1) #define USART_CR1_RXNEIE reg_def( 5, 1) #define USART_CR1_TCIE reg_def( 6, 1) #define USART_CR1_TXEIE reg_def( 7, 1) #define USART_CR1_PEI reg_def( 8, 1) #define USART_CR1_PS reg_def( 9, 1) #define USART_CR1_PCE reg_def(10, 1) #define USART_CR1_WAKE reg_def(11, 1) #define USART_CR1_M reg_def(12, 1) #define USART_CR1_UE reg_def(13, 1) #define USART_CR1_reserved1 reg_def(14, 18) union USART_CR2 { struct __attribute__((packed)) { uint32_t ADD:4; uint32_t reserved1:1; uint32_t LBDL:1; uint32_t LBDIE:1; uint32_t reserved2:1; uint32_t LBCL:1; uint32_t CPHA:1; uint32_t CPOL:1; uint32_t CLKEN:1; uint32_t STOP:2; uint32_t LINEN:1; uint32_t reserved3:17; }; uint32_t word; }; #define USART_CR2_ADD reg_def( 0, 4) #define USART_CR2_reserved1 reg_def( 4, 1) #define USART_CR2_LBDL reg_def( 5, 1) #define USART_CR2_LBDIE reg_def( 6, 1) #define USART_CR2_reserved2 reg_def( 7, 1) #define USART_CR2_LBCL reg_def( 8, 1) #define USART_CR2_CPHA reg_def( 9, 1) #define USART_CR2_CPOL reg_def(10, 1) #define USART_CR2_CLKEN reg_def(11, 1) #define USART_CR2_STOP reg_def(12, 2) #define USART_CR2_LINEN reg_def(14, 1) #define USART_CR2_reserved3 reg_def(15, 17) union USART_CR3 { struct __attribute__((packed)) { uint32_t EIE:1; uint32_t IREN:1; uint32_t IRLP:1; uint32_t HDSEL:1; uint32_t NACK:1; uint32_t SCEN:1; uint32_t DMAR:1; uint32_t DMAT:1; uint32_t RTSE:1; uint32_t CTSE:1; uint32_t CTSIE:1; uint32_t reserved3:21; }; uint32_t word; }; #define USART_CR3_EIE reg_def( 0, 1) #define USART_CR3_IREN reg_def( 1, 1) #define USART_CR3_IRLP reg_def( 2, 1) #define USART_CR3_HDSEL reg_def( 3, 1) #define USART_CR3_NACK reg_def( 4, 1) #define USART_CR3_SCEN reg_def( 5, 1) #define USART_CR3_DMAR reg_def( 6, 1) #define USART_CR3_DMAT reg_def( 7, 1) #define USART_CR3_RTSE reg_def( 8, 1) #define USART_CR3_CTSE reg_def( 9, 1) #define USART_CR3_CTSIE reg_def(10, 1) #define USART_CR3_reserved3 reg_def(11, 21) union USART_GTPR { struct __attribute__((packed)) { uint32_t PSC:8; uint32_t GT:8; uint32_t reserved1:16; }; uint32_t word; }; #define USART_GTPR_PSC reg_def( 0, 8) #define USART_GTPR_GT reg_def( 8, 8) #define USART_GTPR_reserved1 reg_def(16, 16) struct USART { union USART_SR SR; union USART_DR DR; union USART_BRR BRR; union USART_CR1 CR1; union USART_CR2 CR2; union USART_CR3 CR3; union USART_GTPR GTPR; }; //--functions------------------------------------------------------------------- #endif //_USART_REGS_H_