add modbus slave support
add modbus slave support
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Supowang1989
233
components/connectivity/Modbus/3rdparty/freemodbus-v1.6/demo/STR71XTCP/library/tim.c
vendored
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233
components/connectivity/Modbus/3rdparty/freemodbus-v1.6/demo/STR71XTCP/library/tim.c
vendored
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/******************** (C) COPYRIGHT 2003 STMicroelectronics ********************
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* File Name : tim.c
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* Author : MCD Application Team
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* Date First Issued : 09/08/2003
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* Description : This file provides all the TIM software functions
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********************************************************************************
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* History:
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* 24/05/2005 : V3.0
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* 30/11/2004 : V2.0
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* 14/07/2004 : V1.3
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* 01/01/2004 : V1.2
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*******************************************************************************
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THE PRESENT SOFTWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH
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CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
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AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT
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OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
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OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION
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CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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*******************************************************************************/
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#include "tim.h"
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/*******************************************************************************
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* Function Name : TIM_Init
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* Description : This routine is used to Initialize the TIM peripheral
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* Input : TIM Timer to Initialize
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* Return : None
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*******************************************************************************/
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void TIM_Init( TIM_TypeDef *TIMx )
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{
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TIMx->CR1 = 0x0000;
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TIMx->CR2 = 0x0000;
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TIMx->SR = 0x0000;
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}
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/*******************************************************************************
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* Function Name : TIM_ICAPModeConfig
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* Description : This routine is used to configure the input capture feature
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* Input : (1) TIM Timer
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* : (2) Input Capture Channel ( Channel_A or Channel_B )
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* : (3) Active Edge : Rising edge or Falling edge.
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* Output : None
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*******************************************************************************/
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void TIM_ICAPModeConfig ( TIM_TypeDef *TIMx,
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TIM_Channels Xchannel,
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TIM_Clock_Edges Xedge )
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{
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switch (Xchannel)
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{
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case TIM_CHANNEL_A :
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if (Xedge == TIM_RISING) TIMx->CR1 |= TIM_IEDGA_Mask; else TIMx->CR1 &= ~TIM_IEDGA_Mask;
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break;
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case TIM_CHANNEL_B :
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if (Xedge == TIM_RISING) TIMx->CR1 |= TIM_IEDGB_Mask; else TIMx->CR1 &= ~TIM_IEDGB_Mask;
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break;
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}
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}
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/*******************************************************************************
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* Function Name : TIM_OCMPModeConfig
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* Description : This routine is used to configure the output compare feature
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* Input : (1) TIM Timer
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* : (2) OCMP Channel ( Channel_A or Channel_B )
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* : (3) Pulse Length
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* : (4) OC_Mode : output wave, or only timing.
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* : (5) Level : Rising edge or Falling edge after the ==
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* Output : None
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*******************************************************************************/
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void TIM_OCMPModeConfig ( TIM_TypeDef *TIMx,
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TIM_Channels Xchannel,
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u16 XpulseLength,
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TIM_OC_Modes Xmode,
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TIM_Logic_Levels Xlevel )
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{
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u16 Tmp1 = 0x0000;
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u16 Tmp2 = TIMx->CR2;
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TIMx->CR2 = 0x0000;
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// Start The TIM Counter
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TIMx->CR1 = TIM_EN_Mask;
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// Update the CR2 Register
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TIMx->CR2 = Tmp2;
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switch ( Xmode )
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{
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case TIM_TIMING :
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// Output Compare Used only for Internal Timing Operation
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Tmp1 = Xchannel == TIM_CHANNEL_A ? Tmp1 & ~TIM_OCAE_Mask : Tmp1 & ~TIM_OCBE_Mask;
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break;
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case TIM_WAVE :
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// Output Compare Used for external wave generation
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Tmp1 = Xchannel == TIM_CHANNEL_A ? TIM_OCAE_Mask : TIM_OCBE_Mask;
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if ( Xlevel == TIM_HIGH )
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Tmp1 = Xchannel == TIM_CHANNEL_A ? Tmp1 | TIM_OLVLA_Mask : Tmp1 | TIM_OLVLB_Mask;
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else
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Tmp1 = Xchannel == TIM_CHANNEL_A ? Tmp1 & ~TIM_OLVLA_Mask : Tmp1 & ~TIM_OLVLB_Mask;
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break;
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}
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if ( Xchannel == TIM_CHANNEL_A )
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TIMx->OCAR = ( XpulseLength);
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else
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TIMx->OCBR = ( XpulseLength);
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TIMx->CNTR = 0x0000;
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TIMx->CR1 |= Tmp1;
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}
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/*******************************************************************************
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* Function Name : TIM_OPModeConfig
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* Description : This routine is used to configure the one pulse mode
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* Input : (1) TIM Timer
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* : (3) XpulseLength : Length of the pulse
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* : (4) Level1 : Level during the pulse
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* : (5) Level2 : Level after the pulse
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* : (6) Activation Edge : High or Low on ICAP A
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* Output : None
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*******************************************************************************/
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void TIM_OPModeConfig ( TIM_TypeDef *TIMx,
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u16 XpulseLength,
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TIM_Logic_Levels XLevel1,
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TIM_Logic_Levels XLevel2,
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TIM_Clock_Edges Xedge )
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{
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u16 Tmp = 0;
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// Set the Level During the pulse
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if (XLevel1 == TIM_HIGH) Tmp |= TIM_OLVLB_Mask;
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// Set the Level after After the pulse
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if (XLevel2 == TIM_HIGH) Tmp |= TIM_OLVLA_Mask;
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// Set the Activation Edge on the INCAP 1
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if (Xedge == TIM_RISING) Tmp |= TIM_IEDGA_Mask;
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// Set the Output Compare Function
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Tmp |= TIM_OCAE_Mask;
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// Set the One pulse mode
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Tmp |= TIM_OMP_Mask;
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// Update the CR1 register Value
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TIMx->CR1 = Tmp;
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// Set the Pulse length
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TIMx->OCAR = XpulseLength;
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}
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/*******************************************************************************
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* Function Name : TIM_PWMOModeConfig
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* Description : This routine is used to configure the PWM in output mode
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* Input : (1) TIM Timer
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* : (2) DutyCycle : u16
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* : (3) Level 1 : During the Duty Cycle
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* : (4) Level 2 : During the after the pulse
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* : (5) Full period : u16
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* Output : None
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*******************************************************************************/
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void TIM_PWMOModeConfig ( TIM_TypeDef *TIMx,
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u16 XDutyCycle,
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TIM_Logic_Levels XLevel1,
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u16 XFullperiod,
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TIM_Logic_Levels XLevel2
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)
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{
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u16 Tmp = TIMx->CR1;
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// Set the Level During the pulse
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Tmp = XLevel1 == TIM_HIGH ? Tmp | TIM_OLVLB_Mask : Tmp & ~TIM_OLVLB_Mask;
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// Set the Level after After the pulse
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Tmp = XLevel2 == TIM_HIGH ? Tmp | TIM_OLVLA_Mask : Tmp & ~TIM_OLVLA_Mask;
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// Set the OCAE
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Tmp |= TIM_OCAE_Mask;
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// Set the PWM Bit
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Tmp |= TIM_PWM_Mask;
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// Update the CR1
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TIMx->CR1 = Tmp;
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// Set the Duty Cycle value
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if ( XDutyCycle < 5 ) XDutyCycle = 5;
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TIMx->OCAR = XDutyCycle - 5;
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// Set the Full Period
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TIMx->OCBR = XFullperiod - 5;
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}
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/*******************************************************************************
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* Function Name : TIM_PWMInputConfig
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* Description : This routine is used to configure the PWM in input mode
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* Input : (1) TIM Timer
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* : (2) First Activation Edge
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* Output : None
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*******************************************************************************/
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void TIM_PWMIModeConfig ( TIM_TypeDef *TIMx, TIM_Clock_Edges Xedge )
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{
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u16 Tmp = TIMx->CR1;
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// Set the first edge Level
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Tmp = Xedge == TIM_RISING ? Tmp | TIM_IEDGA_Mask : Tmp & ~TIM_IEDGA_Mask;
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// Set the Second edge Level ( Opposit of the first level )
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Tmp = Xedge == TIM_FALLING ? Tmp | TIM_IEDGB_Mask : Tmp & ~TIM_IEDGB_Mask;
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// Set the PWM I Bit
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Tmp |= TIM_PWMI_Mask;
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// Update the CR1
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TIMx->CR1 = Tmp;
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}
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/*******************************************************************************
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* Function Name : TIM_PWMIValue
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* Description : This routine is used to get the PWMI values
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* Input : (1) TIM Timer
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* Output : PWMI_parameters : - u16 Dyty cycle
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- u16 Full period
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*******************************************************************************/
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PWMI_parameters TIM_PWMIValue ( TIM_TypeDef *TIMx )
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{
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PWMI_parameters Tmp;
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Tmp.Pulse = TIMx->ICBR;
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Tmp.Period = TIMx->ICAR;
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return Tmp;
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}
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/*******************************************************************************
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* Function Name : TIM_PWMInputConfig
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* Description : This routine is used to configure the PWM in input mode
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* Input : (1) TIM Timer
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* : (2) First Activation Edge
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* Output : None
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*******************************************************************************/
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void TIM_CounterConfig ( TIM_TypeDef *TIMx, TIM_CounterOperations Xoperation )
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{
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switch ( Xoperation )
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{
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case TIM_START :
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TIMx->CR1 |= TIM_EN_Mask;
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break;
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case TIM_STOP :
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TIMx->CR1 &= ~TIM_EN_Mask;
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break;
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case TIM_CLEAR :
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TIMx->CNTR = 0x1234;
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break;
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}
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}
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/******************* (C) COPYRIGHT 2003 STMicroelectronics *****END OF FILE****/
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