stm32_usart.c

Included Files

#include <nut/include/cfg/clock.h>

#include <nut/include/sys/atom.h>

#include <nut/include/sys/event.h>

#include <nut/include/sys/timer.h>

#include <nut/include/dev/irqreg.h>

#include <nut/include/dev/usart.h>

#include <nut/include/arch/cm3/stm/stm32_usart.h>

#include <nut/include/arch/cm3/stm/stm32_dma.h>

Preprocessor definitions

#define USARTN_RDR

#define USARTN_TDR

#define USARTN_ISR

#define CLEAR_ERRS

#define TXE_SET

#define CLEAR_TC

#define USART_ISR_ORE USART_SR_ORE

#define USART_ISR_NE USART_SR_NE

#define USART_ISR_FE USART_SR_FE

#define USART_ISR_PE USART_SR_PE

#define USART_ISR_TC USART_SR_TC

#define USART_ISR_RXNE USART_SR_RXNE

#define USART_ISR_TXE USART_SR_TXE

#define NutUartIrqEnable

#define NutUartIrqDisable

#define USART_INIT_BAUTRATE USART_INITSPEED

#define Rs485DE_L

#define Rs485DE_H

#define Rs485NRE_L

#define Rs485NRE_H

Local Variables

rx_errors
static uint16_t rx_errors

Used in:	Stm32UsartGetStatus()
	Stm32UsartRxReady()

tx_aframe
static uint_fast8_t tx_aframe

Used in:	Stm32UsartGetStatus()
	Stm32UsartSetStatus()

hdpx_control
static uint_fast8_t hdpx_control

Used in:	Stm32UsartGetFlowControl()
	Stm32UsartSetFlowControl()
	Stm32UsartTxComplete()
	Stm32UsartTxReady()
	Stm32UsartTxStart()

Global Function Stm32UsartGetClockMode()

uint8_t Stm32UsartGetClockMode ( void )

Prototyped in:

nut/include/arch/cm3/stm/stm32_usart.h

Global Function Stm32UsartSetStopBits()

int Stm32UsartSetStopBits ( uint8_t bits )

Prototyped in:	nut/include/arch/cm3/stm/stm32_usart.h
Calls:	Stm32UsartDisable()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartEnable()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartGetStopBits()	nut/arch/cm3/dev/stm/stm32_usart.c
Called by:	Stm32UsartInit()	nut/arch/cm3/dev/stm/stm32_usart.c

Local Function Stm32UsartDeinit()

static int Stm32UsartDeinit ( void )

Prototyped in:	nut/include/arch/cm3/stm/stm32_usart.h
Calls:	NutIrqDisable(), NutRegisterIrqHandler(), StmUsartClkEnable()

Local Function Stm32UsartDisable()

static void Stm32UsartDisable ( void )

Calls:	CM3BBGET(), _BI32()
Called by:	Stm32UsartSetDataBits()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartSetFlowControl()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartSetParity()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartSetSpeed()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartSetStopBits()	nut/arch/cm3/dev/stm/stm32_usart.c

Local Function Stm32UsartEnable()

static void Stm32UsartEnable ( void )

Called by:	Stm32UsartSetDataBits()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartSetFlowControl()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartSetParity()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartSetSpeed()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartSetStopBits()	nut/arch/cm3/dev/stm/stm32_usart.c

Local Function Stm32UsartGetDataBits()

static uint8_t Stm32UsartGetDataBits ( void )

Prototyped in:	nut/include/arch/cm3/stm/stm32_usart.h
Called by:	Stm32UsartSetDataBits()	nut/arch/cm3/dev/stm/stm32_usart.c

Local Function Stm32UsartGetFlowControl()

static uint32_t Stm32UsartGetFlowControl ( void )

Prototyped in:	nut/include/arch/cm3/stm/stm32_usart.h
Called by:	Stm32UsartSetFlowControl()	nut/arch/cm3/dev/stm/stm32_usart.c
References Variables:	hdpx_control	nut/arch/cm3/dev/stm/stm32_usart.c

Local Function Stm32UsartGetParity()

static uint8_t Stm32UsartGetParity ( void )

Prototyped in:	nut/include/arch/cm3/stm/stm32_usart.h
Called by:	Stm32UsartSetParity()	nut/arch/cm3/dev/stm/stm32_usart.c

Local Function Stm32UsartGetSpeed()

static uint32_t Stm32UsartGetSpeed ( void )

Prototyped in:	nut/include/arch/cm3/stm/stm32_usart.h
Calls:	CM3BBGET(), NutGetCpuClock(), _BI32()

Local Function Stm32UsartGetStatus()

static uint32_t Stm32UsartGetStatus ( void )

Prototyped in:	nut/include/arch/cm3/stm/stm32_usart.h
Called by:	Stm32UsartSetStatus()	nut/arch/cm3/dev/stm/stm32_usart.c
References Variables:	rx_errors	nut/arch/cm3/dev/stm/stm32_usart.c
	tx_aframe	nut/arch/cm3/dev/stm/stm32_usart.c

Local Function Stm32UsartGetStopBits()

static uint8_t Stm32UsartGetStopBits ( void )

Prototyped in:	nut/include/arch/cm3/stm/stm32_usart.h
Called by:	Stm32UsartSetStopBits()	nut/arch/cm3/dev/stm/stm32_usart.c

Local Function Stm32UsartInit()

static int Stm32UsartInit ( void )

Prototyped in:	nut/include/arch/cm3/stm/stm32_usart.h
Calls:	Stm32UsartSetDataBits()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartSetParity()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartSetSpeed()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartSetStopBits()	nut/arch/cm3/dev/stm/stm32_usart.c
	NutIrqEnable(), NutRegisterIrqHandler(), StmUsartClkEnable()
References Functions:	Stm32UsartInterrupt()	nut/arch/cm3/dev/stm/stm32_usart.c

Local Function Stm32UsartInterrupt()

static void Stm32UsartInterrupt ( void* arg )

Calls:	Stm32UsartRxReady()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartTxComplete()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartTxReady()	nut/arch/cm3/dev/stm/stm32_usart.c
	CM3BBGET(), _BI32()
Used in:	Stm32UsartInit()	nut/arch/cm3/dev/stm/stm32_usart.c

Local Function Stm32UsartRxReady()

static void Stm32UsartRxReady ( RINGBUF* rbf )

Calls:	NutSelectWakeupFromIrq()
Called by:	Stm32UsartInterrupt()	nut/arch/cm3/dev/stm/stm32_usart.c
References Variables:	rx_errors	nut/arch/cm3/dev/stm/stm32_usart.c

Local Function Stm32UsartRxStart()

static void Stm32UsartRxStart ( void )

Prototyped in:	nut/include/arch/cm3/stm/stm32_usart.h
Calls:	CM3BBSET(), _BI32()

Local Function Stm32UsartSetClockMode()

static int Stm32UsartSetClockMode ( uint8_t mode )

Prototyped in:

nut/include/arch/cm3/stm/stm32_usart.h

Local Function Stm32UsartSetDataBits()

static int Stm32UsartSetDataBits ( uint8_t bits )

Prototyped in:	nut/include/arch/cm3/stm/stm32_usart.h
Calls:	Stm32UsartDisable()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartEnable()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartGetDataBits()	nut/arch/cm3/dev/stm/stm32_usart.c
Called by:	Stm32UsartInit()	nut/arch/cm3/dev/stm/stm32_usart.c

Local Function Stm32UsartSetFlowControl()

static int Stm32UsartSetFlowControl ( uint32_t flags )

Prototyped in:	nut/include/arch/cm3/stm/stm32_usart.h
Calls:	Stm32UsartDisable()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartEnable()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartGetFlowControl()	nut/arch/cm3/dev/stm/stm32_usart.c
References Variables:	hdpx_control	nut/arch/cm3/dev/stm/stm32_usart.c

Local Function Stm32UsartSetParity()

static int Stm32UsartSetParity ( uint8_t mode )

Prototyped in:	nut/include/arch/cm3/stm/stm32_usart.h
Calls:	Stm32UsartDisable()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartEnable()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartGetParity()	nut/arch/cm3/dev/stm/stm32_usart.c
Called by:	Stm32UsartInit()	nut/arch/cm3/dev/stm/stm32_usart.c

Local Function Stm32UsartSetSpeed()

static int Stm32UsartSetSpeed ( uint32_t rate )

Prototyped in:	nut/include/arch/cm3/stm/stm32_usart.h
Calls:	Stm32UsartDisable()	nut/arch/cm3/dev/stm/stm32_usart.c
	Stm32UsartEnable()	nut/arch/cm3/dev/stm/stm32_usart.c
	CM3BBCLR(), CM3BBGET(), CM3BBSET(), NutGetCpuClock(), _BI32()
Called by:	Stm32UsartInit()	nut/arch/cm3/dev/stm/stm32_usart.c

Local Function Stm32UsartSetStatus()

static int Stm32UsartSetStatus ( uint32_t flags )

Prototyped in:	nut/include/arch/cm3/stm/stm32_usart.h
Calls:	Stm32UsartGetStatus()	nut/arch/cm3/dev/stm/stm32_usart.c
References Variables:	tx_aframe	nut/arch/cm3/dev/stm/stm32_usart.c

Local Function Stm32UsartTxComplete()

static void Stm32UsartTxComplete ( RINGBUF* rbf )

Calls:	CM3BBCLR(), CM3BBSET(), NutSelectWakeupFromIrq(), _BI32()
Called by:	Stm32UsartInterrupt()	nut/arch/cm3/dev/stm/stm32_usart.c
References Variables:	hdpx_control	nut/arch/cm3/dev/stm/stm32_usart.c

Local Function Stm32UsartTxReady()

static void Stm32UsartTxReady ( RINGBUF* rbf )

Calls:	CM3BBCLR(), CM3BBSET(), NutSelectWakeupFromIrq(), _BI32()
Called by:	Stm32UsartInterrupt()	nut/arch/cm3/dev/stm/stm32_usart.c
References Variables:	hdpx_control	nut/arch/cm3/dev/stm/stm32_usart.c

Local Function Stm32UsartTxStart()

static void Stm32UsartTxStart ( void )

Prototyped in:	nut/include/arch/cm3/stm/stm32_usart.h
Calls:	CM3BBCLR(), CM3BBSET(), _BI32()
References Variables:	hdpx_control	nut/arch/cm3/dev/stm/stm32_usart.c