mirror of
https://github.com/eddyem/STM8_samples.git
synced 2025-12-06 18:55:15 +03:00
added 4-digit src
This commit is contained in:
Eddy
parent
b300fb8d06
commit
1a0095a9ae
39
voltmeters/src/4-digit/Makefile
Normal file
39
voltmeters/src/4-digit/Makefile
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@ -0,0 +1,39 @@
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NAME=testproj
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SDCC=sdcc
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HEX2BIN=hex2bin
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CCFLAGS=-DSTM8S003 -I../ -I/usr/share/sdcc/include -mstm8 --out-fmt-ihx
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LDFLAGS= -lstm8 -mstm8 --out-fmt-ihx
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FLASHFLAGS=-cstlinkv2 -pstm8s003
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SRC=$(wildcard *.c)
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# ATTENTION: FIRST in list should be file with main()
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OBJ=$(SRC:%.c=%.rel)
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TRASH=$(OBJ) $(SRC:%.c=%.rst) $(SRC:%.c=%.asm) $(SRC:%.c=%.lst)
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TRASH+=$(SRC:%.c=%.sym) $(NAME).ihx $(NAME).lk $(NAME).map
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INDEPENDENT_HEADERS=../stm8l.h Makefile
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all: $(NAME).bin
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$(SRC) : %.c : %.h $(INDEPENDENT_HEADERS)
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@touch $@
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@echo $@
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%.h: ;
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clean:
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rm -f $(TRASH)
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load: $(NAME).bin
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stm8flash $(FLASHFLAGS) -w $(NAME).bin
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%.rel: %.c
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$(SDCC) $(CCFLAGS) -c $<
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$(NAME).ihx: $(OBJ)
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$(SDCC) $(LDFLAGS) $(OBJ) -o $(NAME).ihx
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$(NAME).bin: $(NAME).ihx
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$(HEX2BIN) -p 00 $<
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.PHONY: all
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156
voltmeters/src/4-digit/interrupts.c
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156
voltmeters/src/4-digit/interrupts.c
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@ -0,0 +1,156 @@
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/*
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* interrupts.c
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*
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* Copyright 2015 Edward V. Emelianoff <eddy@sao.ru>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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||||
* You should have received a copy of the GNU General Public License
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||||
* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#include "stm8l.h"
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#include "interrupts.h"
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U8 ADC_ready = 0; // flag: data ready
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int ADC_value = 0;// value of last ADC measurement
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// Top Level Interrupt
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INTERRUPT_HANDLER(TLI_IRQHandler, 0){}
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// Auto Wake Up Interrupt
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INTERRUPT_HANDLER(AWU_IRQHandler, 1){}
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// Clock Controller Interrupt
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INTERRUPT_HANDLER(CLK_IRQHandler, 2){}
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// External Interrupt PORTA
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INTERRUPT_HANDLER(EXTI_PORTA_IRQHandler, 3){}
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// External Interrupt PORTB
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INTERRUPT_HANDLER(EXTI_PORTB_IRQHandler, 4){}
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// External Interrupt PORTC
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INTERRUPT_HANDLER(EXTI_PORTC_IRQHandler, 5){}
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// External Interrupt PORTD
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INTERRUPT_HANDLER(EXTI_PORTD_IRQHandler, 6){}
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// External Interrupt PORTE
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INTERRUPT_HANDLER(EXTI_PORTE_IRQHandler, 7){}
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#ifdef STM8S903
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// External Interrupt PORTF
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INTERRUPT_HANDLER(EXTI_PORTF_IRQHandler, 8){}
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#endif // STM8S903
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#if defined (STM8S208) || defined (STM8AF52Ax)
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// CAN RX Interrupt routine.
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INTERRUPT_HANDLER(CAN_RX_IRQHandler, 8){}
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// CAN TX Interrupt routine.
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INTERRUPT_HANDLER(CAN_TX_IRQHandler, 9){}
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#endif // STM8S208 || STM8AF52Ax
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// SPI Interrupt routine.
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INTERRUPT_HANDLER(SPI_IRQHandler, 10){}
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// Timer1 Update/Overflow/Trigger/Break Interrupt
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INTERRUPT_HANDLER(TIM1_UPD_OVF_TRG_BRK_IRQHandler, 11){
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if(TIM1_SR1 & TIM_SR1_UIF){ // update interrupt
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Global_time++; // increase timer
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}
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TIM1_SR1 = 0; // clear all interrupt flags
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}
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// Timer1 Capture/Compare Interrupt routine.
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INTERRUPT_HANDLER(TIM1_CAP_COM_IRQHandler, 12){}
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#ifdef STM8S903
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// Timer5 Update/Overflow/Break/Trigger Interrupt
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INTERRUPT_HANDLER(TIM5_UPD_OVF_BRK_TRG_IRQHandler, 13){}
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// Timer5 Capture/Compare Interrupt
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INTERRUPT_HANDLER(TIM5_CAP_COM_IRQHandler, 14){}
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#else // STM8S208, STM8S207, STM8S105 or STM8S103 or STM8AF62Ax or STM8AF52Ax or STM8AF626x
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// Timer2 Update/Overflow/Break Interrupt
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INTERRUPT_HANDLER(TIM2_UPD_OVF_BRK_IRQHandler, 13){}
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// Timer2 Capture/Compare Interrupt
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// process soft I2C
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INTERRUPT_HANDLER(TIM2_CAP_COM_IRQHandler, 14){
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}
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#endif // STM8S903
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#if defined (STM8S208) || defined(STM8S207) || defined(STM8S007) || defined(STM8S105) || \
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defined(STM8S005) || defined (STM8AF62Ax) || defined (STM8AF52Ax) || defined (STM8AF626x)
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// Timer3 Update/Overflow/Break Interrupt
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INTERRUPT_HANDLER(TIM3_UPD_OVF_BRK_IRQHandler, 15){}
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// Timer3 Capture/Compare Interrupt
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INTERRUPT_HANDLER(TIM3_CAP_COM_IRQHandler, 16){}
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#endif // STM8S208, STM8S207 or STM8S105 or STM8AF62Ax or STM8AF52Ax or STM8AF626x
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#if defined (STM8S208) || defined(STM8S207) || defined(STM8S007) || defined(STM8S103) || \
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defined(STM8S003) || defined (STM8AF62Ax) || defined (STM8AF52Ax) || defined (STM8S903)
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// UART1 TX Interrupt
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INTERRUPT_HANDLER(UART1_TX_IRQHandler, 17){}
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// UART1 RX Interrupt
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INTERRUPT_HANDLER(UART1_RX_IRQHandler, 18){}
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#endif // STM8S208 or STM8S207 or STM8S103 or STM8S903 or STM8AF62Ax or STM8AF52Ax
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// I2C Interrupt
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INTERRUPT_HANDLER(I2C_IRQHandler, 19){}
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#if defined(STM8S105) || defined(STM8S005) || defined (STM8AF626x)
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// UART2 TX interrupt
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INTERRUPT_HANDLER(UART2_TX_IRQHandler, 20){}
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// UART2 RX interrupt
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INTERRUPT_HANDLER(UART2_RX_IRQHandler, 21){}
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#endif // STM8S105 or STM8AF626x
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#if defined(STM8S207) || defined(STM8S007) || defined(STM8S208) || defined (STM8AF52Ax) || defined (STM8AF62Ax)
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// UART3 TX interrupt
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INTERRUPT_HANDLER(UART3_TX_IRQHandler, 20){}
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// UART3 RX interrupt
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INTERRUPT_HANDLER(UART3_RX_IRQHandler, 21){}
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#endif // STM8S208 or STM8S207 or STM8AF52Ax or STM8AF62Ax
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#if defined(STM8S207) || defined(STM8S007) || defined(STM8S208) || defined (STM8AF52Ax) || defined (STM8AF62Ax)
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// ADC2 interrupt
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INTERRUPT_HANDLER(ADC2_IRQHandler, 22){}
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#else
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// ADC1 interrupt
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INTERRUPT_HANDLER(ADC1_IRQHandler, 22){
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ADC_value = ADC_DRL; // in right-alignment mode we should first read LSB
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ADC_value |= ADC_DRH << 8;
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ADC_ready = 1;
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ADC_CSR &= 0x3f; // clear EOC & AWD flags
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}
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#endif // STM8S208 or STM8S207 or STM8AF52Ax or STM8AF62Ax
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#ifdef STM8S903
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// Timer6 Update/Overflow/Trigger Interrupt
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INTERRUPT_HANDLER(TIM6_UPD_OVF_TRG_IRQHandler, 23){}
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#else // STM8S208, STM8S207, STM8S105 or STM8S103 or STM8AF52Ax or STM8AF62Ax or STM8AF626x
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// Timer4 Update/Overflow Interrupt
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INTERRUPT_HANDLER(TIM4_UPD_OVF_IRQHandler, 23){}
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#endif // STM8S903
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// Eeprom EEC Interrupt
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INTERRUPT_HANDLER(EEPROM_EEC_IRQHandler, 24){}
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148
voltmeters/src/4-digit/interrupts.h
Normal file
148
voltmeters/src/4-digit/interrupts.h
Normal file
@ -0,0 +1,148 @@
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/*
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* interrupts.h
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*
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* Copyright 2014 Edward V. Emelianoff <eddy@sao.ru>
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*
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* This program is free software; you can redistribute it and/or modify
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||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
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* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#pragma once
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#ifndef __INTERRUPTS_H__
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#define __INTERRUPTS_H__
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#include "stm8l.h"
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extern U8 ADC_ready; // flag: data ready
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extern U32 Global_time; // global time in ms
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extern int ADC_value; // value of last ADC measurement
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// Top Level Interrupt
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INTERRUPT_DEFINITION(TLI_IRQHandler, 0);
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// Auto Wake Up Interrupt
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INTERRUPT_DEFINITION(AWU_IRQHandler, 1);
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// Clock Controller Interrupt
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INTERRUPT_DEFINITION(CLK_IRQHandler, 2);
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// External Interrupt PORTA
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INTERRUPT_DEFINITION(EXTI_PORTA_IRQHandler, 3);
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// External Interrupt PORTB
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INTERRUPT_DEFINITION(EXTI_PORTB_IRQHandler, 4);
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// External Interrupt PORTC
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INTERRUPT_DEFINITION(EXTI_PORTC_IRQHandler, 5);
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// External Interrupt PORTD
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INTERRUPT_DEFINITION(EXTI_PORTD_IRQHandler, 6);
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// External Interrupt PORTE
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INTERRUPT_DEFINITION(EXTI_PORTE_IRQHandler, 7);
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#ifdef STM8S903
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// External Interrupt PORTF
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INTERRUPT_DEFINITION(EXTI_PORTF_IRQHandler, 8);
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#endif // STM8S903
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#if defined (STM8S208) || defined (STM8AF52Ax)
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// CAN RX Interrupt routine.
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INTERRUPT_DEFINITION(CAN_RX_IRQHandler, 8);
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// CAN TX Interrupt routine.
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INTERRUPT_DEFINITION(CAN_TX_IRQHandler, 9);
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#endif // STM8S208 || STM8AF52Ax
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// SPI Interrupt routine.
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INTERRUPT_DEFINITION(SPI_IRQHandler, 10);
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// Timer1 Update/Overflow/Trigger/Break Interrupt
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INTERRUPT_DEFINITION(TIM1_UPD_OVF_TRG_BRK_IRQHandler, 11);
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// Timer1 Capture/Compare Interrupt routine.
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INTERRUPT_DEFINITION(TIM1_CAP_COM_IRQHandler, 12);
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#ifdef STM8S903
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// Timer5 Update/Overflow/Break/Trigger Interrupt
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INTERRUPT_DEFINITION(TIM5_UPD_OVF_BRK_TRG_IRQHandler, 13);
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// Timer5 Capture/Compare Interrupt
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INTERRUPT_DEFINITION(TIM5_CAP_COM_IRQHandler, 14);
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#else // STM8S208, STM8S207, STM8S105 or STM8S103 or STM8AF62Ax or STM8AF52Ax or STM8AF626x
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// Timer2 Update/Overflow/Break Interrupt
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INTERRUPT_DEFINITION(TIM2_UPD_OVF_BRK_IRQHandler, 13);
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// Timer2 Capture/Compare Interrupt
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INTERRUPT_DEFINITION(TIM2_CAP_COM_IRQHandler, 14);
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#endif // STM8S903
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#if defined (STM8S208) || defined(STM8S207) || defined(STM8S007) || defined(STM8S105) || \
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defined(STM8S005) || defined (STM8AF62Ax) || defined (STM8AF52Ax) || defined (STM8AF626x)
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// Timer3 Update/Overflow/Break Interrupt
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INTERRUPT_DEFINITION(TIM3_UPD_OVF_BRK_IRQHandler, 15);
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// Timer3 Capture/Compare Interrupt
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INTERRUPT_DEFINITION(TIM3_CAP_COM_IRQHandler, 16);
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#endif // STM8S208, STM8S207 or STM8S105 or STM8AF62Ax or STM8AF52Ax or STM8AF626x
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#if defined (STM8S208) || defined(STM8S207) || defined(STM8S007) || defined(STM8S103) || \
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defined(STM8S003) || defined (STM8AF62Ax) || defined (STM8AF52Ax) || defined (STM8S903)
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// UART1 TX Interrupt
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INTERRUPT_DEFINITION(UART1_TX_IRQHandler, 17);
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// UART1 RX Interrupt
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INTERRUPT_DEFINITION(UART1_RX_IRQHandler, 18);
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#endif // STM8S208 or STM8S207 or STM8S103 or STM8S903 or STM8AF62Ax or STM8AF52Ax
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// I2C Interrupt
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INTERRUPT_DEFINITION(I2C_IRQHandler, 19);
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#if defined(STM8S105) || defined(STM8S005) || defined (STM8AF626x)
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// UART2 TX interrupt
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INTERRUPT_DEFINITION(UART2_TX_IRQHandler, 20);
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// UART2 RX interrupt
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INTERRUPT_DEFINITION(UART2_RX_IRQHandler, 21);
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#endif // STM8S105 or STM8AF626x
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||||
|
||||
#if defined(STM8S207) || defined(STM8S007) || defined(STM8S208) || defined (STM8AF52Ax) || defined (STM8AF62Ax)
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// UART3 TX interrupt
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INTERRUPT_DEFINITION(UART3_TX_IRQHandler, 20);
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// UART3 RX interrupt
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INTERRUPT_DEFINITION(UART3_RX_IRQHandler, 21);
|
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#endif // STM8S208 or STM8S207 or STM8AF52Ax or STM8AF62Ax
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||||
|
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#if defined(STM8S207) || defined(STM8S007) || defined(STM8S208) || defined (STM8AF52Ax) || defined (STM8AF62Ax)
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// ADC2 interrupt
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INTERRUPT_DEFINITION(ADC2_IRQHandler, 22);
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#else // STM8S105, STM8S103 or STM8S903 or STM8AF626x
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// ADC1 interrupt
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INTERRUPT_DEFINITION(ADC1_IRQHandler, 22);
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#endif // STM8S208 or STM8S207 or STM8AF52Ax or STM8AF62Ax
|
||||
|
||||
#ifdef STM8S903
|
||||
// Timer6 Update/Overflow/Trigger Interrupt
|
||||
INTERRUPT_DEFINITION(TIM6_UPD_OVF_TRG_IRQHandler, 23);
|
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#else // STM8S208, STM8S207, STM8S105 or STM8S103 or STM8AF52Ax or STM8AF62Ax or STM8AF626x
|
||||
// Timer4 Update/Overflow Interrupt
|
||||
INTERRUPT_DEFINITION(TIM4_UPD_OVF_IRQHandler, 23);
|
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#endif // STM8S903
|
||||
|
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// Eeprom EEC Interrupt
|
||||
INTERRUPT_DEFINITION(EEPROM_EEC_IRQHandler, 24);
|
||||
|
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#endif // __INTERRUPTS_H__
|
||||
237
voltmeters/src/4-digit/led.c
Normal file
237
voltmeters/src/4-digit/led.c
Normal file
@ -0,0 +1,237 @@
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/*
|
||||
* led.c
|
||||
*
|
||||
* Copyright 2014 Edward V. Emelianoff <eddy@sao.ru>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
||||
* MA 02110-1301, USA.
|
||||
*/
|
||||
|
||||
#include "stm8l.h"
|
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#include "led.h"
|
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|
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/*
|
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* bits no 7 6 5 4 3 2 1 0
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* dec value 128 64 32 16 8 4 2 1
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*/
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||||
|
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/********** current variant **********/
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/*
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* One digit: TABLE:
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* ***A*** 0 1 2 3 4 5 6 7 8 9 A B C D E F - h
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||||
* * * (F) PA1 0 1 1 1 0 0 0 1 0 0 0 0 0 1 0 0 1 0
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* F B (B) PB4 0 0 0 0 0 1 1 0 0 0 0 1 1 0 1 1 1 1
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* * * (A) PB5 0 1 0 0 1 0 0 0 0 0 0 1 0 1 0 0 1 1
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* ***G*** (G) PC3 1 1 0 0 0 0 0 1 0 0 0 0 1 0 0 0 0 0
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* * * (C) PC4 0 0 1 0 0 0 0 0 0 0 0 0 1 0 1 1 1 0
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* E C (DP)PC5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
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* * * ** (D) PC6 0 1 0 0 1 0 0 1 0 0 1 0 0 0 0 1 1 1
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* ***D*** *DP* (E) PC7 0 1 0 1 1 1 0 1 0 1 0 0 0 0 0 0 1 0
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* **
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*/
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/*
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* Number of digit on indicator with common anode
|
||||
* digis 0..3: PA3, PD6, PD4, PD1
|
||||
*/
|
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#define CLEAR_ANODES() do{PD_ODR &= ~(0x52);PA_ODR &= ~(0x08);}while(0)
|
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|
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/************* arrays for ports *************/
|
||||
// PA, mask: 0x02, PA1
|
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static U8 PA_bits[18] = {0,2,2,2,0,0,0,2,0,0,0,0,0,2,0,0,2,0};
|
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#define PA_BLANK 0x02
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// PB, mask: 0x30, PB4:0x10=16, PB5:0x20=32
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||||
#define PB_BLANK 0x30
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static U8 PB_bits[18] = {0,32,0,0,32,16,16,0,0,0,0,48,16,32,16,16,48,48};
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// PC, mask: 0xF8, PC3:0x08=8, PC4:0x10=16, PC5:0x20=32, PC6:0x40=64, PC7:0x80=128
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#define PC_BLANK 0xF8
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static U8 PC_bits[18] = {40,232,48,160,224,160,32,232,32,160,96,32,56,32,48,112,240,96};
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||||
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||||
/**
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||||
* Setup for writing a letter
|
||||
* @param ltr - letter (0..17 for 0..F, - or h | 0x80 for DP, any other value for 'space')
|
||||
*/
|
||||
void write_letter(U8 ltr){
|
||||
U8 L = ltr & 0x7f;
|
||||
// first turn all off
|
||||
CLEAR_ANODES();
|
||||
// light up all segments
|
||||
PA_ODR &= ~PA_BLANK;
|
||||
PB_ODR &= ~PB_BLANK;
|
||||
PC_ODR &= ~PC_BLANK;
|
||||
// now clear spare segments
|
||||
if(L < 18){ // letter
|
||||
PA_ODR |= PA_bits[L];
|
||||
PB_ODR |= PB_bits[L];
|
||||
PC_ODR |= PC_bits[L];
|
||||
}else{ // space - turn all OFF
|
||||
PA_ODR |= PA_BLANK;
|
||||
PB_ODR |= PB_BLANK;
|
||||
PC_ODR |= PC_BLANK;
|
||||
}
|
||||
if(ltr & 0x80){ // DP
|
||||
PC_ODR &= ~GPIO_PIN5;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Turn on anode power for digit N (0..3: PA3, PD6, PD4, PD1 -- A0x08, D0x40, D0x10, D0x02)
|
||||
* @param N - number of digit (0..3), if other - no action (display off)
|
||||
* @return
|
||||
*/
|
||||
void light_up_digit(U8 N){
|
||||
switch(N){
|
||||
case 0:
|
||||
PA_ODR |= 0x08;
|
||||
break;
|
||||
case 1:
|
||||
PD_ODR |= 0x40;
|
||||
break;
|
||||
case 2:
|
||||
PD_ODR |= 0x10;
|
||||
break;
|
||||
case 3:
|
||||
PD_ODR |= 0x02;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static U8 display_buffer[4] = {' ',' ',' ',' '}; // blank by default
|
||||
static U8 N_current = 0; // current digit to display
|
||||
|
||||
/**
|
||||
* fills buffer to display
|
||||
* @param str - string to display, contains "0..f" for digits, " " for space, "." for DP
|
||||
* for example: " 1.22" or "h1ab" (something like "0...abc" equivalent to "0.abc"
|
||||
* register independent!
|
||||
* any other letter would be omitted
|
||||
* if NULL - fill buffer with spaces
|
||||
*/
|
||||
void set_display_buf(char *str){
|
||||
U8 B[4];
|
||||
char ch, M = 0, i;
|
||||
N_current = 0; // refresh current digit number
|
||||
// empty buffer
|
||||
for(i = 0; i < 4; i++)
|
||||
display_buffer[i] = ' ';
|
||||
if(!str) return;
|
||||
i = 0;
|
||||
for(;(ch = *str) && (i < 4); str++){
|
||||
M = 0;
|
||||
if(ch > '/' && ch < ':'){ // digit
|
||||
M = '0';
|
||||
}else if(ch > '`' & ch < 'g'){ // a..f
|
||||
M = 'a' - 10;
|
||||
}else if(ch > '@' & ch < 'G'){ // A..F
|
||||
M = 'A' - 10;
|
||||
}else if(ch == '-'){ // minus
|
||||
M = '-' - 16;
|
||||
}else if(ch == 'h'){ // hex
|
||||
M = 'h' - 17;
|
||||
}else if(ch == 'H'){ // hex
|
||||
M = 'H' - 17;
|
||||
}else if(ch == '.'){ // DP, set it to previous char
|
||||
if(i == 0){ // word starts from '.' - make a space with point
|
||||
B[0] = 0xff;
|
||||
}else{ // set point for previous character
|
||||
B[i-1] |= 0x80;
|
||||
}
|
||||
continue;
|
||||
}else if(ch != ' '){ // bad character - continue
|
||||
continue;
|
||||
}
|
||||
B[i] = ch - M;
|
||||
i++;
|
||||
}
|
||||
// now make align to right
|
||||
ch = 3;
|
||||
for(M = i-1; M > -1; M--, ch--){
|
||||
display_buffer[ch] = B[M];
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Show Nth digit of buffer (function ran by timer)
|
||||
* @param N - number of digit in buffer (0..3)
|
||||
*/
|
||||
void show_buf_digit(U8 N){
|
||||
if(N > 3) return;
|
||||
write_letter(display_buffer[N]);
|
||||
light_up_digit(N);
|
||||
}
|
||||
|
||||
/**
|
||||
* Show next digit - function calls from main() by some system time value amount
|
||||
*/
|
||||
void show_next_digit(){
|
||||
show_buf_digit(N_current++);
|
||||
if(N_current > 3) N_current = 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Turn off current digit: to change display brightness
|
||||
*/
|
||||
void lights_off(){
|
||||
U8 N;
|
||||
if(N_current) N = N_current - 1;
|
||||
else N = 3;
|
||||
light_up_digit(N);
|
||||
}
|
||||
|
||||
/**
|
||||
* convert integer value i into string and display it
|
||||
* @param i - value to display, -999 <= i <= 9999, if wrong, displays "---E"
|
||||
*/
|
||||
void display_int(int I, char voltmeter){
|
||||
int rem;
|
||||
char N = 3, sign = 0, i;
|
||||
if(I < -999 || I > 9999){
|
||||
set_display_buf("---E");
|
||||
return;
|
||||
}
|
||||
display_buffer[0] = ' ';
|
||||
// prepare buffer for voltmeter's values
|
||||
if(voltmeter){
|
||||
for(i = 1; i < 4; i++)
|
||||
display_buffer[i] = ' ';
|
||||
}else{
|
||||
for(i = 1; i < 4; i++)
|
||||
display_buffer[i] = 0;
|
||||
}
|
||||
if(I == 0){ // just show zero
|
||||
display_buffer[3] = 0;
|
||||
return;
|
||||
}
|
||||
if(I < 0){
|
||||
sign = 1;
|
||||
I *= -1;
|
||||
}
|
||||
do{
|
||||
rem = I % 10;
|
||||
display_buffer[N] = rem;
|
||||
I /= 10;
|
||||
}while(--N > -1 && I);
|
||||
if(sign && N > -1) display_buffer[N] = 16; // minus sign
|
||||
if(voltmeter) display_buffer[1] |= 0x80;
|
||||
}
|
||||
|
||||
/**
|
||||
* displays digital point at position i
|
||||
* @param i - position to display DP, concequent calls can light up many DPs
|
||||
*/
|
||||
void display_DP_at_pos(U8 i){
|
||||
if(i > 3) return;
|
||||
display_buffer[i] |= 0x80;
|
||||
}
|
||||
43
voltmeters/src/4-digit/led.h
Normal file
43
voltmeters/src/4-digit/led.h
Normal file
@ -0,0 +1,43 @@
|
||||
/*
|
||||
* led.h
|
||||
*
|
||||
* Copyright 2014 Edward V. Emelianoff <eddy@sao.ru>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
||||
* MA 02110-1301, USA.
|
||||
*/
|
||||
#pragma once
|
||||
#ifndef __LED_H__
|
||||
#define __LED_H__
|
||||
|
||||
#include "stm8l.h"
|
||||
|
||||
void set_display_buf(char *str);
|
||||
void show_buf_digit(U8 N);
|
||||
void show_next_digit();
|
||||
void lights_off();
|
||||
void display_int(int i, char voltmeter);
|
||||
void display_DP_at_pos(U8 i);
|
||||
|
||||
/**
|
||||
* Initialize ports
|
||||
* PA1|3, PB4|5, PC3|4|5|6|7, PD1|4|6
|
||||
*/
|
||||
#define LED_init() do{ \
|
||||
PA_DDR = 0x0a; PB_DDR = 0x30; PC_DDR = 0xf8; PD_DDR = 0x52; \
|
||||
PA_CR1 = 0x0a; PB_CR1 = 0x30; PC_CR1 = 0xf8; PD_CR1 = 0x52; \
|
||||
}while(0)
|
||||
|
||||
#endif // __LED_H__
|
||||
152
voltmeters/src/4-digit/main.c
Normal file
152
voltmeters/src/4-digit/main.c
Normal file
@ -0,0 +1,152 @@
|
||||
/*
|
||||
* main.c
|
||||
*
|
||||
* Copyright 2014 Edward V. Emelianoff <eddy@sao.ru>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
||||
* MA 02110-1301, USA.
|
||||
*/
|
||||
|
||||
#include "main.h"
|
||||
#include "interrupts.h"
|
||||
#include "led.h"
|
||||
|
||||
int temp;
|
||||
#define PIX_SORT(a,b) { if ((a)>(b)) PIX_SWAP((a),(b)); }
|
||||
#define PIX_SWAP(a,b) { temp=(a);(a)=(b);(b)=temp; }
|
||||
int p[9]; // buffer for median filtering
|
||||
int opt_med9(){
|
||||
PIX_SORT(p[1], p[2]) ; PIX_SORT(p[4], p[5]) ; PIX_SORT(p[7], p[8]) ;
|
||||
PIX_SORT(p[0], p[1]) ; PIX_SORT(p[3], p[4]) ; PIX_SORT(p[6], p[7]) ;
|
||||
PIX_SORT(p[1], p[2]) ; PIX_SORT(p[4], p[5]) ; PIX_SORT(p[7], p[8]) ;
|
||||
PIX_SORT(p[0], p[3]) ; PIX_SORT(p[5], p[8]) ; PIX_SORT(p[4], p[7]) ;
|
||||
PIX_SORT(p[3], p[6]) ; PIX_SORT(p[1], p[4]) ; PIX_SORT(p[2], p[5]) ;
|
||||
PIX_SORT(p[4], p[7]) ; PIX_SORT(p[4], p[2]) ; PIX_SORT(p[6], p[4]) ;
|
||||
PIX_SORT(p[4], p[2]) ; return(p[4]) ;
|
||||
}
|
||||
|
||||
|
||||
U32 Global_time = 0L; // global time in ms
|
||||
//eeprom_data *saved_data = (eeprom_data*)EEPROM_START_ADDR;
|
||||
|
||||
//U32 testtimer;
|
||||
|
||||
// one digit emitting time
|
||||
#define LED_delay 1
|
||||
/*
|
||||
U8 change_eeprom_value(U8 *addr, U8 *val, U8 len){
|
||||
U8 i;
|
||||
// unlock memory
|
||||
FLASH_DUKR = EEPROM_KEY1;
|
||||
FLASH_DUKR = EEPROM_KEY2;
|
||||
// check bit DUL=1 in FLASH_IAPSR
|
||||
if(!(FLASH_IAPSR & 0x08))
|
||||
return 0;
|
||||
for(i = 0; i < len; i++)
|
||||
*addr = val[i];
|
||||
while(!(FLASH_IAPSR & 0x04)); // wait till end
|
||||
// clear DUL to lock write
|
||||
FLASH_IAPSR &= ~0x08;
|
||||
return 1;
|
||||
}
|
||||
|
||||
void eeprom_default_setup(){
|
||||
eeprom_data template = {
|
||||
.magick = EEPROM_MAGICK,
|
||||
.ADU_to_mV = DEFAULT_ADU_TO_MV,
|
||||
.max_ADU = DEFAULT_MAX_ADU
|
||||
};
|
||||
if(saved_data->magick != EEPROM_MAGICK){
|
||||
if(change_eeprom_value((U8*)saved_data, (U8*)&template, sizeof(eeprom_data)))
|
||||
testtimer = saved_data->ADU_to_mV;
|
||||
else
|
||||
testtimer = 999;
|
||||
}else{
|
||||
testtimer = 0; // other times - from zero
|
||||
}
|
||||
}
|
||||
*/
|
||||
|
||||
int main() {
|
||||
U32 T_LED = 0L; // time of last digit update
|
||||
U32 T_time = 0L; // timer
|
||||
int U = 0;
|
||||
int pidx = 0; // index in median buffer
|
||||
long voltage = 0L;
|
||||
long cntr = 0;
|
||||
// Configure clocking
|
||||
CLK_CKDIVR = 0; // F_HSI = 16MHz, f_CPU = 16MHz
|
||||
// Configure pins
|
||||
CFG_GCR |= 1; // disable SWIM
|
||||
LED_init();
|
||||
CCR |= 0x28; // make shure that we are on level 3 - disabled SW priority
|
||||
// Configure Timer1
|
||||
// prescaler = f_{in}/f_{tim1} - 1
|
||||
// set Timer1 to 1MHz: 16/1 - 1 = 15
|
||||
TIM1_PSCRH = 0;
|
||||
TIM1_PSCRL = 15; // LSB should be written last as it updates prescaler
|
||||
// auto-reload each 1ms: TIM_ARR = 1000 = 0x03E8
|
||||
TIM1_ARRH = 0x03;
|
||||
TIM1_ARRL = 0xE8;
|
||||
// interrupts: update
|
||||
TIM1_IER = TIM_IER_UIE;
|
||||
// auto-reload + interrupt on overflow + enable
|
||||
TIM1_CR1 = TIM_CR1_APRE | TIM_CR1_URS | TIM_CR1_CEN;
|
||||
//eeprom_default_setup();
|
||||
// configure ADC
|
||||
// select PD2[AIN3] & enable interrupt for EOC
|
||||
ADC_CSR = 0x23;
|
||||
ADC_TDRL = 0x08; // disable Schmitt triger for AIN3
|
||||
// right alignment
|
||||
ADC_CR2 = 0x08; // don't forget: first read ADC_DRL!
|
||||
// f_{ADC} = f/18 & continuous non-buffered conversion & wake it up
|
||||
ADC_CR1 = 0x73;
|
||||
ADC_CR1 = 0x73; // turn on ADC (this needs second write operation)
|
||||
|
||||
// enable all interrupts
|
||||
enableInterrupts();
|
||||
set_display_buf(" E0 "); // low power -> infinitive rebooting
|
||||
// Loop
|
||||
do {
|
||||
// onse per 300ms refresh displayed value
|
||||
if(((unsigned int)(Global_time - T_time) > 300) || (T_time > Global_time)){
|
||||
T_time = Global_time;
|
||||
voltage /= cntr; // average
|
||||
// convert ADU to U: U = 10[R2/(R5,6+R2)]*ADU>>10[norm] *100[100th of V]*3.3[amplitude] ->
|
||||
// U = (3300*ADU)>>10;
|
||||
voltage *= 3300;
|
||||
U = (int)(voltage >> 10);
|
||||
display_int(U, 1);
|
||||
cntr = 0;
|
||||
voltage = 0L;
|
||||
pidx = 0;
|
||||
}
|
||||
if((U8)(Global_time - T_LED) > LED_delay){
|
||||
if(ADC_ready){
|
||||
// prepare data for rounded output
|
||||
p[pidx] = ADC_value;
|
||||
if(++pidx == 9){ // buffer is ready
|
||||
voltage += (long)(opt_med9());
|
||||
cntr++;
|
||||
pidx = 0;
|
||||
}
|
||||
ADC_ready = 0;
|
||||
}
|
||||
T_LED = Global_time;
|
||||
show_next_digit();
|
||||
}
|
||||
} while(1);
|
||||
}
|
||||
|
||||
40
voltmeters/src/4-digit/main.h
Normal file
40
voltmeters/src/4-digit/main.h
Normal file
@ -0,0 +1,40 @@
|
||||
/*
|
||||
* main.h
|
||||
*
|
||||
* Copyright 2015 Edward V. Emelianoff <eddy@sao.ru>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
||||
* MA 02110-1301, USA.
|
||||
*/
|
||||
#pragma once
|
||||
#ifndef __MAIN_H__
|
||||
#define __MAIN_H__
|
||||
|
||||
#include "stm8l.h"
|
||||
/*
|
||||
#define EEPROM_MAGICK (0x1234)
|
||||
#define DEFAULT_ADU_TO_MV (35840)
|
||||
#define DEFAULT_MAX_ADU (119800)
|
||||
|
||||
typedef struct{
|
||||
U16 magick;
|
||||
U32 ADU_to_mV;
|
||||
U32 max_ADU;
|
||||
}eeprom_data;
|
||||
*/
|
||||
#define CONCAT(a,b) a##_##b
|
||||
#define PORT(a,b) CONCAT(a,b)
|
||||
|
||||
#endif // __MAIN_H__
|
||||
BIN
voltmeters/src/4-digit/testproj.bin
Normal file
BIN
voltmeters/src/4-digit/testproj.bin
Normal file
Binary file not shown.
@ -74,8 +74,6 @@ int main() {
|
||||
// Configure pins
|
||||
CFG_GCR |= 1; // disable SWIM
|
||||
LED_init();
|
||||
// configure PD3[TIM2_CH2] as input for zacwire
|
||||
PD_CR1 |= GPIO_PIN3; // weak pullup
|
||||
CCR |= 0x28; // make shure that we are on level 3 - disabled SW priority
|
||||
// Configure Timer1
|
||||
// prescaler = f_{in}/f_{tim1} - 1
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user