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adopted the arduino serial module for use with the STM8S
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‎examples/uart-ringbuffer/Makefile‎

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SDCC=sdcc
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SDLD=sdld
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OBJECT=uart
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OBJECTS=uart-ringbuffer.rel
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LIBDIR=../../STM8S_StdPeriph_Driver/src
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#LIBFILES=$(LIBDIR)/stm8s_gpio.rel
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LIBFILES=$(LIBDIR)/stm8s.lib
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CFLAGS=-DSTM8S103 -I. -I../../STM8S_StdPeriph_Driver/inc
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.PHONY: all clean flash
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all: $(OBJECT).ihx
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clean:
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rm -f *.asm *.ihx *.rel *.sym *.map *.cdb *.lk *.lst *.rst *~
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flash: $(OBJECT).ihx
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stm8flash -cstlinkv2 -pstm8s103?3 -w $(OBJECT).ihx
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$(OBJECT).ihx: $(OBJECTS) $(LIBFILES)
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$(SDCC) -lstm8 -mstm8 --out-fmt-ihx $(LDFLAGS) $^ -o $@
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%.rel: %.c
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$(SDCC) -lstm8 -mstm8 --out-fmt-ihx $(CFLAGS) $(LDFLAGS) -c $<

‎examples/uart-ringbuffer/README.md‎

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# uart-ringbuffer.c
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Adopted HardwareSerial.cpp from arduino-1.0 for use with the STM8S and SDCC
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using SPL functions.

‎examples/uart-ringbuffer/stm8s_conf.h‎

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/**
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******************************************************************************
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* @file stm8s_conf.h
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* @author MCD Application Team
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* @version V2.2.0
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* @date 30-September-2014
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* @brief This file is used to configure the Library.
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******************************************************************************
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* @attention
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*
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* <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
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*
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* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
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* You may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.st.com/software_license_agreement_liberty_v2
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************
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*/
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/* Define to prevent recursive inclusion -------------------------------------*/
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#ifndef __STM8S_CONF_H
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#define __STM8S_CONF_H
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/* Includes ------------------------------------------------------------------*/
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#include "stm8s.h"
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/* Uncomment the line below to enable peripheral header file inclusion */
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#if defined(STM8S105) || defined(STM8S005) || defined(STM8S103) || defined(STM8S003) ||\
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defined(STM8S903) || defined (STM8AF626x) || defined (STM8AF622x)
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#include "stm8s_adc1.h"
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#endif /* (STM8S105) ||(STM8S103) || (STM8S903) || (STM8AF626x) || (STM8AF622x) */
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#if defined(STM8S208) || defined(STM8S207) || defined(STM8S007) || defined (STM8AF52Ax) ||\
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defined (STM8AF62Ax)
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#include "stm8s_adc2.h"
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#endif /* (STM8S208) || (STM8S207) || (STM8AF62Ax) || (STM8AF52Ax) */
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#include "stm8s_awu.h"
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#include "stm8s_beep.h"
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#if defined (STM8S208) || defined (STM8AF52Ax)
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#include "stm8s_can.h"
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#endif /* (STM8S208) || (STM8AF52Ax) */
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#include "stm8s_clk.h"
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#include "stm8s_exti.h"
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#include "stm8s_flash.h"
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#include "stm8s_gpio.h"
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#include "stm8s_i2c.h"
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#include "stm8s_itc.h"
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#include "stm8s_iwdg.h"
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#include "stm8s_rst.h"
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#include "stm8s_spi.h"
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#include "stm8s_tim1.h"
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#if !defined(STM8S903) || !defined(STM8AF622x)
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#include "stm8s_tim2.h"
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#endif /* (STM8S903) || (STM8AF622x) */
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#if defined(STM8S208) || defined(STM8S207) || defined(STM8S007) ||defined(STM8S105) ||\
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defined(STM8S005) || defined (STM8AF52Ax) || defined (STM8AF62Ax) || defined (STM8AF626x)
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#include "stm8s_tim3.h"
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#endif /* (STM8S208) ||defined(STM8S207) || defined(STM8S007) ||defined(STM8S105) */
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#if !defined(STM8S903) || !defined(STM8AF622x)
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#include "stm8s_tim4.h"
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#endif /* (STM8S903) || (STM8AF622x) */
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#if defined(STM8S903) || defined(STM8AF622x)
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#include "stm8s_tim5.h"
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#include "stm8s_tim6.h"
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#endif /* (STM8S903) || (STM8AF622x) */
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#if defined(STM8S208) ||defined(STM8S207) || defined(STM8S007) ||defined(STM8S103) ||\
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defined(STM8S003) || defined(STM8S903) || defined (STM8AF52Ax) || defined (STM8AF62Ax)
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#include "stm8s_uart1.h"
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#endif /* (STM8S208) || (STM8S207) || (STM8S103) || (STM8S903) || (STM8AF52Ax) || (STM8AF62Ax) */
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#if defined(STM8S105) || defined(STM8S005) || defined (STM8AF626x)
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#include "stm8s_uart2.h"
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#endif /* (STM8S105) || (STM8AF626x) */
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#if defined(STM8S208) ||defined(STM8S207) || defined(STM8S007) || defined (STM8AF52Ax) ||\
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defined (STM8AF62Ax)
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#include "stm8s_uart3.h"
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#endif /* STM8S208 || STM8S207 || STM8AF52Ax || STM8AF62Ax */
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#if defined(STM8AF622x)
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#include "stm8s_uart4.h"
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#endif /* (STM8AF622x) */
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#include "stm8s_wwdg.h"
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/* Exported types ------------------------------------------------------------*/
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/* Exported constants --------------------------------------------------------*/
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/* Uncomment the line below to expanse the "assert_param" macro in the
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Standard Peripheral Library drivers code */
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//#define USE_FULL_ASSERT (1)
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/* Exported macro ------------------------------------------------------------*/
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#ifdef USE_FULL_ASSERT
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/**
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* @brief The assert_param macro is used for function's parameters check.
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* @param expr: If expr is false, it calls assert_failed function
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* which reports the name of the source file and the source
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* line number of the call that failed.
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* If expr is true, it returns no value.
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* @retval : None
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*/
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#define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
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/* Exported functions ------------------------------------------------------- */
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void assert_failed(uint8_t* file, uint32_t line);
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#else
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#define assert_param(expr) ((void)0)
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#endif /* USE_FULL_ASSERT */
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#endif /* __STM8S_CONF_H */
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

‎examples/uart-ringbuffer/stm8s_it.h‎

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/**
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******************************************************************************
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* @file stm8s_it.h
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* @author MCD Application Team
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* @version V2.2.0
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* @date 30-September-2014
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* @brief This file contains the headers of the interrupt handlers
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******************************************************************************
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* @attention
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*
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* <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
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*
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* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
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* You may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.st.com/software_license_agreement_liberty_v2
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************
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*/
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/* Define to prevent recursive inclusion -------------------------------------*/
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#ifndef __STM8S_IT_H
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#define __STM8S_IT_H
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/* Includes ------------------------------------------------------------------*/
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#include "stm8s.h"
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/* Exported types ------------------------------------------------------------*/
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/* Exported constants --------------------------------------------------------*/
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/* Exported macro ------------------------------------------------------------*/
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/* Exported functions ------------------------------------------------------- */
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#ifdef _COSMIC_
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void _stext(void); /* RESET startup routine */
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INTERRUPT void NonHandledInterrupt(void);
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#endif /* _COSMIC_ */
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#if !defined(_RAISONANCE_) && !defined(_SDCC_) // SDCC patch: interrupt keyword required after function
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INTERRUPT void TRAP_IRQHandler(void); /* TRAP */
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INTERRUPT void TLI_IRQHandler(void); /* TLI */
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INTERRUPT void AWU_IRQHandler(void); /* AWU */
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INTERRUPT void CLK_IRQHandler(void); /* CLOCK */
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INTERRUPT void EXTI_PORTA_IRQHandler(void); /* EXTI PORTA */
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INTERRUPT void EXTI_PORTB_IRQHandler(void); /* EXTI PORTB */
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INTERRUPT void EXTI_PORTC_IRQHandler(void); /* EXTI PORTC */
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INTERRUPT void EXTI_PORTD_IRQHandler(void); /* EXTI PORTD */
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INTERRUPT void EXTI_PORTE_IRQHandler(void); /* EXTI PORTE */
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#if defined(STM8S903) || defined(STM8AF622x)
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INTERRUPT void EXTI_PORTF_IRQHandler(void); /* EXTI PORTF */
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#endif /* (STM8S903) || (STM8AF622x) */
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#if defined (STM8S208) || defined (STM8AF52Ax)
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INTERRUPT void CAN_RX_IRQHandler(void); /* CAN RX */
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INTERRUPT void CAN_TX_IRQHandler(void); /* CAN TX/ER/SC */
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#endif /* (STM8S208) || (STM8AF52Ax) */
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INTERRUPT void SPI_IRQHandler(void); /* SPI */
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INTERRUPT void TIM1_CAP_COM_IRQHandler(void); /* TIM1 CAP/COM */
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INTERRUPT void TIM1_UPD_OVF_TRG_BRK_IRQHandler(void); /* TIM1 UPD/OVF/TRG/BRK */
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#if defined(STM8S903) || defined(STM8AF622x)
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INTERRUPT void TIM5_UPD_OVF_BRK_TRG_IRQHandler(void); /* TIM5 UPD/OVF/BRK/TRG */
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INTERRUPT void TIM5_CAP_COM_IRQHandler(void); /* TIM5 CAP/COM */
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#else /* (STM8S208) || (STM8S207) || (STM8S105) || (STM8S103) || (STM8AF52Ax) || (STM8AF62Ax) || (STM8A626x) */
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INTERRUPT void TIM2_UPD_OVF_BRK_IRQHandler(void); /* TIM2 UPD/OVF/BRK */
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INTERRUPT void TIM2_CAP_COM_IRQHandler(void); /* TIM2 CAP/COM */
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#endif /* (STM8S903) || (STM8AF622x) */
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#if defined (STM8S208) || defined(STM8S207) || defined(STM8S007) || defined(STM8S105) || \
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defined(STM8S005) || defined (STM8AF52Ax) || defined (STM8AF62Ax) || defined (STM8AF626x)
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INTERRUPT void TIM3_UPD_OVF_BRK_IRQHandler(void); /* TIM3 UPD/OVF/BRK */
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INTERRUPT void TIM3_CAP_COM_IRQHandler(void); /* TIM3 CAP/COM */
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#endif /* (STM8S208) || (STM8S207) || (STM8S105) || (STM8AF52Ax) || (STM8AF62Ax) || (STM8A626x) */
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#if defined (STM8S208) || defined(STM8S207) || defined(STM8S007) || defined(STM8S103) || \
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defined(STM8S003) || defined (STM8AF52Ax) || defined (STM8AF62Ax) || defined (STM8S903)
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INTERRUPT void UART1_TX_IRQHandler(void); /* UART1 TX */
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INTERRUPT void UART1_RX_IRQHandler(void); /* UART1 RX */
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#endif /* (STM8S208) || (STM8S207) || (STM8S903) || (STM8S103) || (STM8AF52Ax) || (STM8AF62Ax) */
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#if defined (STM8AF622x)
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INTERRUPT void UART4_TX_IRQHandler(void); /* UART4 TX */
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INTERRUPT void UART4_RX_IRQHandler(void); /* UART4 RX */
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#endif /* (STM8AF622x) */
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INTERRUPT void I2C_IRQHandler(void); /* I2C */
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#if defined(STM8S105) || defined(STM8S005) || defined (STM8AF626x)
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INTERRUPT void UART2_RX_IRQHandler(void); /* UART2 RX */
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INTERRUPT void UART2_TX_IRQHandler(void); /* UART2 TX */
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#endif /* (STM8S105) || (STM8AF626x) */
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#if defined(STM8S207) || defined(STM8S007) || defined(STM8S208) || defined (STM8AF52Ax) || defined (STM8AF62Ax)
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INTERRUPT void UART3_RX_IRQHandler(void); /* UART3 RX */
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INTERRUPT void UART3_TX_IRQHandler(void); /* UART3 TX */
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#endif /* (STM8S207) || (STM8S208) || (STM8AF62Ax) || (STM8AF52Ax) */
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#if defined(STM8S207) || defined(STM8S007) || defined(STM8S208) || defined (STM8AF52Ax) || defined (STM8AF62Ax)
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INTERRUPT void ADC2_IRQHandler(void); /* ADC2 */
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#else /* (STM8S105) || (STM8S103) || (STM8S903) || (STM8AF622x) */
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INTERRUPT void ADC1_IRQHandler(void); /* ADC1 */
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#endif /* (STM8S207) || (STM8S208) || (STM8AF62Ax) || (STM8AF52Ax) */
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#if defined(STM8S903) || defined(STM8AF622x)
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INTERRUPT void TIM6_UPD_OVF_TRG_IRQHandler(void); /* TIM6 UPD/OVF/TRG */
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#else /* (STM8S208) || (STM8S207) || (STM8S105) || (STM8S103) || (STM8AF62Ax) || (STM8AF52Ax) || (STM8AF626x) */
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INTERRUPT void TIM4_UPD_OVF_IRQHandler(void); /* TIM4 UPD/OVF */
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#endif /* (STM8S903) || (STM8AF622x) */
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INTERRUPT void EEPROM_EEC_IRQHandler(void); /* EEPROM ECC CORRECTION */
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#endif /* _RAISONANCE_ */
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#endif /* __STM8S_IT_H */
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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