mirror of
https://github.com/eddyem/STM8_samples.git
synced 2026-03-20 00:31:06 +03:00
I2C (not working yet)
This commit is contained in:
34
uart_sample/Makefile
Normal file
34
uart_sample/Makefile
Normal file
@@ -0,0 +1,34 @@
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NAME=uart
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SDCC=sdcc
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CCFLAGS=-DSTM8S105 -I../ -I/usr/share/sdcc/include -mstm8 --out-fmt-ihx
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LDFLAGS= -mstm8 --out-fmt-ihx -lstm8
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FLASHFLAGS=-cstlinkv2 -pstm8s105
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SRC=$(wildcard *.c)
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OBJ=$(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).lk $(NAME).map
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INDEPENDENT_HEADERS=../stm8l.h ports_definition.h Makefile
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all: $(NAME).ihx
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#$(SRC) : %.c : %.h $(INDEPENDENT_HEADERS)
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# @touch $@
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#
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#%.h: ;
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clean:
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rm -f $(TRASH)
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load: $(NAME).ihx
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stm8flash $(FLASHFLAGS) -w $(NAME).ihx
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%.rel: %.c
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$(SDCC) $(CCFLAGS) -c $<
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$(NAME).ihx: $(OBJ)
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$(SDCC) $(LDFLAGS) $(OBJ) -o $(NAME).ihx
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.PHONY: all
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192
uart_sample/interrupts.c
Normal file
192
uart_sample/interrupts.c
Normal file
@@ -0,0 +1,192 @@
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/*
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* interrupts.c
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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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#include "ports_definition.h"
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#include "uart.h"
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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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}
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// External Interrupt PORTD
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INTERRUPT_HANDLER(EXTI_PORTD_IRQHandler, 6){
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}
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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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}
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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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}
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// Timer2 Capture/Compare Interrupt
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// manage with sending/receiving
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INTERRUPT_HANDLER(TIM2_CAP_COM_IRQHandler, 14){
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/* TIM2_SR1 &= ~TIM_SR1_CC1IF;
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onewire_gotlen = TIM2_CCR1H << 8;
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onewire_gotlen |= TIM2_CCR1L;
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if(onewire_tick_ctr){ // there's some more data to transmit / receive
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--onewire_tick_ctr;
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if(is_receiver){// receive bits
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ow_data >>= 1;
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if(onewire_gotlen < ONE_ZERO_BARRIER){ // this is 1
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ow_data |= 0x80; // LSbit first!
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}
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// in receiver mode we don't need to send byte after ctr is zero!
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if(onewire_tick_ctr == 0){
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TIM2_CR1 &= ~TIM_CR1_CEN;
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}
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}else{// transmit bits
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// update CCR2 registers with new values
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if(ow_data & 1){ // transmit 1
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TIM2REG(CCR2, BIT_ONE_P);
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}else{ // transmit 0
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TIM2REG(CCR2, BIT_ZERO_P);
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}
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ow_data >>= 1;
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}
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}else{ // end: turn off timer
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TIM2_CR1 &= ~TIM_CR1_CEN;
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}*/
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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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U8 rb;
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if(UART2_SR & UART_SR_RXNE){ // data received
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rb = UART2_DR; // read received byte & clear RXNE flag
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while(!(UART2_SR & UART_SR_TXE));
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UART2_DR = rb; // echo received symbol
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UART_rx[UART_rx_cur_i++] = rb; // put received byte into cycled buffer
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if(UART_rx_cur_i == UART_rx_start_i){ // Oops: buffer overflow! Just forget old data
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UART_rx_start_i++;
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check_UART_pointer(UART_rx_start_i);
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}
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check_UART_pointer(UART_rx_cur_i);
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}
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}
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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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}
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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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if(TIM4_SR & TIM_SR1_UIF){ // update interrupt
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Global_time++; // increase timer
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}
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TIM4_SR = 0; // clear all interrupt flags
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}
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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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144
uart_sample/interrupts.h
Normal file
144
uart_sample/interrupts.h
Normal file
@@ -0,0 +1,144 @@
|
||||
/*
|
||||
* interrupts.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
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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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// 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
|
||||
|
||||
#if defined (STM8S208) || defined (STM8AF52Ax)
|
||||
// CAN RX Interrupt routine.
|
||||
INTERRUPT_DEFINITION(CAN_RX_IRQHandler, 8);
|
||||
|
||||
// CAN TX Interrupt routine.
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||||
INTERRUPT_DEFINITION(CAN_TX_IRQHandler, 9);
|
||||
#endif // STM8S208 || STM8AF52Ax
|
||||
|
||||
// SPI Interrupt routine.
|
||||
INTERRUPT_DEFINITION(SPI_IRQHandler, 10);
|
||||
|
||||
// Timer1 Update/Overflow/Trigger/Break Interrupt
|
||||
INTERRUPT_DEFINITION(TIM1_UPD_OVF_TRG_BRK_IRQHandler, 11);
|
||||
|
||||
// Timer1 Capture/Compare Interrupt routine.
|
||||
INTERRUPT_DEFINITION(TIM1_CAP_COM_IRQHandler, 12);
|
||||
|
||||
#ifdef STM8S903
|
||||
// Timer5 Update/Overflow/Break/Trigger Interrupt
|
||||
INTERRUPT_DEFINITION(TIM5_UPD_OVF_BRK_TRG_IRQHandler, 13);
|
||||
|
||||
// Timer5 Capture/Compare Interrupt
|
||||
INTERRUPT_DEFINITION(TIM5_CAP_COM_IRQHandler, 14);
|
||||
|
||||
#else // STM8S208, STM8S207, STM8S105 or STM8S103 or STM8AF62Ax or STM8AF52Ax or STM8AF626x
|
||||
// Timer2 Update/Overflow/Break Interrupt
|
||||
INTERRUPT_DEFINITION(TIM2_UPD_OVF_BRK_IRQHandler, 13);
|
||||
|
||||
// Timer2 Capture/Compare Interrupt
|
||||
INTERRUPT_DEFINITION(TIM2_CAP_COM_IRQHandler, 14);
|
||||
#endif // STM8S903
|
||||
|
||||
#if defined (STM8S208) || defined(STM8S207) || defined(STM8S007) || defined(STM8S105) || \
|
||||
defined(STM8S005) || defined (STM8AF62Ax) || defined (STM8AF52Ax) || defined (STM8AF626x)
|
||||
// Timer3 Update/Overflow/Break Interrupt
|
||||
INTERRUPT_DEFINITION(TIM3_UPD_OVF_BRK_IRQHandler, 15);
|
||||
|
||||
// Timer3 Capture/Compare Interrupt
|
||||
INTERRUPT_DEFINITION(TIM3_CAP_COM_IRQHandler, 16);
|
||||
#endif // STM8S208, STM8S207 or STM8S105 or STM8AF62Ax or STM8AF52Ax or STM8AF626x
|
||||
|
||||
#if defined (STM8S208) || defined(STM8S207) || defined(STM8S007) || defined(STM8S103) || \
|
||||
defined(STM8S003) || defined (STM8AF62Ax) || defined (STM8AF52Ax) || defined (STM8S903)
|
||||
// UART1 TX Interrupt
|
||||
INTERRUPT_DEFINITION(UART1_TX_IRQHandler, 17);
|
||||
|
||||
// UART1 RX Interrupt
|
||||
INTERRUPT_DEFINITION(UART1_RX_IRQHandler, 18);
|
||||
#endif // STM8S208 or STM8S207 or STM8S103 or STM8S903 or STM8AF62Ax or STM8AF52Ax
|
||||
|
||||
// I2C Interrupt
|
||||
INTERRUPT_DEFINITION(I2C_IRQHandler, 19);
|
||||
|
||||
#if defined(STM8S105) || defined(STM8S005) || defined (STM8AF626x)
|
||||
// UART2 TX interrupt
|
||||
INTERRUPT_DEFINITION(UART2_TX_IRQHandler, 20);
|
||||
|
||||
// UART2 RX interrupt
|
||||
INTERRUPT_DEFINITION(UART2_RX_IRQHandler, 21);
|
||||
#endif // STM8S105 or STM8AF626x
|
||||
|
||||
#if defined(STM8S207) || defined(STM8S007) || defined(STM8S208) || defined (STM8AF52Ax) || defined (STM8AF62Ax)
|
||||
// UART3 TX interrupt
|
||||
INTERRUPT_DEFINITION(UART3_TX_IRQHandler, 20);
|
||||
|
||||
// UART3 RX interrupt
|
||||
INTERRUPT_DEFINITION(UART3_RX_IRQHandler, 21);
|
||||
#endif // STM8S208 or STM8S207 or STM8AF52Ax or STM8AF62Ax
|
||||
|
||||
#if defined(STM8S207) || defined(STM8S007) || defined(STM8S208) || defined (STM8AF52Ax) || defined (STM8AF62Ax)
|
||||
// ADC2 interrupt
|
||||
INTERRUPT_DEFINITION(ADC2_IRQHandler, 22);
|
||||
#else // STM8S105, STM8S103 or STM8S903 or STM8AF626x
|
||||
// ADC1 interrupt
|
||||
INTERRUPT_DEFINITION(ADC1_IRQHandler, 22);
|
||||
#endif // STM8S208 or STM8S207 or STM8AF52Ax or STM8AF62Ax
|
||||
|
||||
#ifdef STM8S903
|
||||
// Timer6 Update/Overflow/Trigger Interrupt
|
||||
INTERRUPT_DEFINITION(TIM6_UPD_OVF_TRG_IRQHandler, 23);
|
||||
#else // STM8S208, STM8S207, STM8S105 or STM8S103 or STM8AF52Ax or STM8AF62Ax or STM8AF626x
|
||||
// Timer4 Update/Overflow Interrupt
|
||||
INTERRUPT_DEFINITION(TIM4_UPD_OVF_IRQHandler, 23);
|
||||
#endif // STM8S903
|
||||
|
||||
// Eeprom EEC Interrupt
|
||||
INTERRUPT_DEFINITION(EEPROM_EEC_IRQHandler, 24);
|
||||
|
||||
#endif // __INTERRUPTS_H__
|
||||
81
uart_sample/main.c
Normal file
81
uart_sample/main.c
Normal file
@@ -0,0 +1,81 @@
|
||||
/*
|
||||
* blinky.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 "ports_definition.h"
|
||||
#include "interrupts.h"
|
||||
#include "uart.h"
|
||||
|
||||
volatile unsigned long Global_time = 0L; // global time in ms
|
||||
U16 paused_val = 500; // interval between LED flashing
|
||||
|
||||
int main() {
|
||||
unsigned long T = 0L;
|
||||
U8 rb;
|
||||
CFG_GCR |= 1; // disable SWIM
|
||||
// Configure clocking
|
||||
CLK_CKDIVR = 0; // F_HSI = 16MHz, f_CPU = 16MHz
|
||||
// Timer 4 (8 bit) used as system tick timer
|
||||
// prescaler == 128 (2^7), Tfreq = 125kHz
|
||||
// period = 1ms, so ARR = 125
|
||||
TIM4_PSCR = 7;
|
||||
TIM4_ARR = 125;
|
||||
// interrupts: update
|
||||
TIM4_IER = TIM_IER_UIE;
|
||||
// auto-reload + interrupt on overflow + enable
|
||||
TIM4_CR1 = TIM_CR1_APRE | TIM_CR1_URS | TIM_CR1_CEN;
|
||||
|
||||
// PC2 - PP output (on-board LED)
|
||||
PORT(LED_PORT, DDR) |= LED_PIN;
|
||||
PORT(LED_PORT, CR1) |= LED_PIN;
|
||||
|
||||
uart_init();
|
||||
|
||||
// enable all interrupts
|
||||
enableInterrupts();
|
||||
|
||||
// Loop
|
||||
do{
|
||||
if((Global_time - T > paused_val) || (T > Global_time)){
|
||||
T = Global_time;
|
||||
PORT(LED_PORT, ODR) ^= LED_PIN; // blink on-board LED
|
||||
}
|
||||
if(UART_read_byte(&rb)){ // buffer isn't empty
|
||||
switch(rb){
|
||||
case 'h': // help
|
||||
case 'H':
|
||||
uart_write("\nPROTO:\n+/-\tLED period\nS/s\tset/get Mspeed\n"
|
||||
);
|
||||
break;
|
||||
case '+':
|
||||
paused_val += 100;
|
||||
if(paused_val > 10000)
|
||||
paused_val = 500; // but not more than 10s
|
||||
break;
|
||||
case '-':
|
||||
paused_val -= 100;
|
||||
if(paused_val < 500) // but not less than 0.5s
|
||||
paused_val = 500;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}while(1);
|
||||
}
|
||||
|
||||
|
||||
40
uart_sample/ports_definition.h
Normal file
40
uart_sample/ports_definition.h
Normal file
@@ -0,0 +1,40 @@
|
||||
/*
|
||||
* ports_definition.h - definition of ports pins & so on
|
||||
*
|
||||
* Copyright 2014 Edward V. Emelianov <eddy@sao.ru, edward.emelianoff@gmail.com>
|
||||
*
|
||||
* 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 __PORTS_DEFINITION_H__
|
||||
#define __PORTS_DEFINITION_H__
|
||||
|
||||
#include "stm8l.h"
|
||||
|
||||
// macro for using in port constructions like PORT(LED_PORT, ODR) = xx
|
||||
#define CONCAT(a, b) a ## _ ## b
|
||||
#define PORT(a, b) CONCAT(a , b)
|
||||
|
||||
// on-board LED
|
||||
#define LED_PORT PC
|
||||
#define LED_PIN GPIO_PIN2
|
||||
|
||||
// UART2_TX
|
||||
#define UART_PORT PD
|
||||
#define UART_TX_PIN GPIO_PIN5
|
||||
|
||||
#endif // __PORTS_DEFINITION_H__
|
||||
169
uart_sample/uart.c
Normal file
169
uart_sample/uart.c
Normal file
@@ -0,0 +1,169 @@
|
||||
/*
|
||||
* blinky.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 "ports_definition.h"
|
||||
#include "uart.h"
|
||||
#include "interrupts.h"
|
||||
|
||||
U8 UART_rx[UART_BUF_LEN]; // cycle buffer for received data
|
||||
U8 UART_rx_start_i = 0; // started index of received data (from which reading starts)
|
||||
U8 UART_rx_cur_i = 0; // index of current first byte in rx array (to which data will be written)
|
||||
|
||||
/**
|
||||
* Send one byte through UART
|
||||
* @param byte - data to send
|
||||
*/
|
||||
void UART_send_byte(U8 byte){
|
||||
while(!(UART2_SR & UART_SR_TXE)); // wait until previous byte transmitted
|
||||
UART2_DR = byte;
|
||||
}
|
||||
|
||||
void uart_write(char *str){
|
||||
while(*str){
|
||||
while(!(UART2_SR & UART_SR_TXE));
|
||||
UART2_CR2 |= UART_CR2_TEN;
|
||||
UART2_DR = *str++;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Read one byte from Rx buffer
|
||||
* @param byte - where to store readed data
|
||||
* @return 1 in case of non-empty buffer
|
||||
*/
|
||||
U8 UART_read_byte(U8 *byte){
|
||||
if(UART_rx_start_i == UART_rx_cur_i) // buffer is empty
|
||||
return 0;
|
||||
*byte = UART_rx[UART_rx_start_i++];
|
||||
check_UART_pointer(UART_rx_start_i);
|
||||
return 1;
|
||||
}
|
||||
|
||||
void printUint(U8 *val, U8 len){
|
||||
unsigned long Number = 0;
|
||||
U8 i = len;
|
||||
char ch;
|
||||
U8 decimal_buff[12]; // max len of U32 == 10 + \n + \0
|
||||
if(len > 4 || len == 3 || len == 0) return;
|
||||
for(i = 0; i < 12; i++)
|
||||
decimal_buff[i] = 0;
|
||||
decimal_buff[10] = '\n';
|
||||
ch = 9;
|
||||
switch(len){
|
||||
case 1:
|
||||
Number = *((U8*)val);
|
||||
break;
|
||||
case 2:
|
||||
Number = *((U16*)val);
|
||||
break;
|
||||
case 4:
|
||||
Number = *((unsigned long*)val);
|
||||
break;
|
||||
}
|
||||
do{
|
||||
i = Number % 10L;
|
||||
decimal_buff[ch--] = i + '0';
|
||||
Number /= 10L;
|
||||
}while(Number && ch > -1);
|
||||
uart_write((char*)&decimal_buff[ch+1]);
|
||||
}
|
||||
|
||||
/**
|
||||
* print signed long onto terminal
|
||||
* max len = 10 symbols + 1 for "-" + 1 for '\n' + 1 for 0 = 13
|
||||
*/
|
||||
void print_long(long Number){
|
||||
U8 i, L = 0;
|
||||
char ch;
|
||||
char decimal_buff[12];
|
||||
decimal_buff[11] = 0;
|
||||
ch = 11;
|
||||
if(Number < 0){
|
||||
Number = -Number;
|
||||
L = 1;
|
||||
}
|
||||
do{
|
||||
i = Number % 10L;
|
||||
decimal_buff[--ch] = i + '0';
|
||||
Number /= 10L;
|
||||
}while(Number && ch > 0);
|
||||
if(ch > 0 && L) decimal_buff[--ch] = '-';
|
||||
uart_write(&decimal_buff[ch]);
|
||||
}
|
||||
|
||||
U8 readInt(int *val){
|
||||
unsigned long T = Global_time;
|
||||
unsigned long R = 0;
|
||||
int readed;
|
||||
U8 sign = 0, rb, ret = 0, bad = 0;
|
||||
do{
|
||||
if(!UART_read_byte(&rb)) continue;
|
||||
if(rb == '-' && R == 0){ // negative number
|
||||
sign = 1;
|
||||
continue;
|
||||
}
|
||||
if(rb < '0' || rb > '9') break; // number ends with any non-digit symbol that will be omitted
|
||||
ret = 1; // there's at least one digit
|
||||
R = R * 10L + rb - '0';
|
||||
if(R > 0x7fff){ // bad value
|
||||
R = 0;
|
||||
bad = 0;
|
||||
}
|
||||
}while(Global_time - T < 10000); // wait no longer than 10s
|
||||
if(bad || !ret) return 0;
|
||||
readed = (int) R;
|
||||
if(sign) readed *= -1;
|
||||
*val = readed;
|
||||
return 1;
|
||||
}
|
||||
|
||||
void error_msg(char *msg){
|
||||
uart_write("\nERROR: ");
|
||||
uart_write(msg);
|
||||
UART_send_byte('\n');
|
||||
}
|
||||
|
||||
U8 U8toHEX(U8 val){
|
||||
val &= 0x0f;
|
||||
if(val < 10) val += '0';
|
||||
else val += 'a' - 10;
|
||||
return val;
|
||||
}
|
||||
|
||||
void printUHEX(U8 val){
|
||||
uart_write("0x");
|
||||
UART_send_byte(U8toHEX(val>>4)); // MSB
|
||||
UART_send_byte(U8toHEX(val)); // LSB
|
||||
}
|
||||
|
||||
void uart_init(){
|
||||
// PD5 - UART2_TX
|
||||
PORT(UART_PORT, DDR) |= UART_TX_PIN;
|
||||
PORT(UART_PORT, CR1) |= UART_TX_PIN;
|
||||
// Configure UART
|
||||
// 8 bit, no parity, 1 stop (UART_CR1/3 = 0 - reset value)
|
||||
// 57600 on 16MHz: BRR1=0x11, BRR2=0x06
|
||||
UART2_BRR1 = 0x11; UART2_BRR2 = 0x06;
|
||||
UART2_CR2 = UART_CR2_TEN | UART_CR2_REN | UART_CR2_RIEN; // Allow RX/TX, generate ints on rx
|
||||
}
|
||||
|
||||
|
||||
45
uart_sample/uart.h
Normal file
45
uart_sample/uart.h
Normal file
@@ -0,0 +1,45 @@
|
||||
/*
|
||||
* blinky.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 __MAIN_H__
|
||||
#define __MAIN_H__
|
||||
|
||||
extern volatile unsigned long Global_time; // global time in ms
|
||||
|
||||
#define UART_BUF_LEN 8 // max 7 bytes transmited in on operation
|
||||
|
||||
extern U8 UART_rx[];
|
||||
extern U8 UART_rx_start_i;
|
||||
extern U8 UART_rx_cur_i;
|
||||
|
||||
|
||||
void UART_send_byte(U8 byte);
|
||||
void uart_write(char *str);
|
||||
void printUint(U8 *val, U8 len);
|
||||
void print_long(long Number);
|
||||
void error_msg(char *msg);
|
||||
void uart_init();
|
||||
U8 UART_read_byte(U8 *byte);
|
||||
void printUHEX(U8 val);
|
||||
|
||||
#define check_UART_pointer(x) do{if(x == UART_BUF_LEN) x = 0;}while(0)
|
||||
|
||||
#endif // __MAIN_H__
|
||||
82
uart_sample/uart.ihx
Normal file
82
uart_sample/uart.ihx
Normal file
@@ -0,0 +1,82 @@
|
||||
:2080A00080808080808080808080808080808080805204AE5240F66B047B04A520274DAEDF
|
||||
:2080C0005241F66B017B04A4804D27FDAE52417B01F7AE00011F02C6000A97C6000A4CC7C9
|
||||
:2080E000000A4F9572FB027B01F7C60009C1000A260FC600094CC70009A1082604725F0052
|
||||
:2081000009C6000AA1082604725F000A5B048080AE5342F644241B90CE000D72A90001C670
|
||||
:18812000000CA90097C6000BA9009590CF000DCF000BAE53427F8080E4
|
||||
:20813800AE5240F64824F9AE52417B03F781160390F64D2718AE5240F64824F9AE5245F654
|
||||
:20815800AA08F790F6905CAE5241F720E3815202C6000AC1000926034F20271605AE0001B9
|
||||
:208178001F01C6000997C600094CC700094F9572FB01F690F7C60009A1082604725F00092B
|
||||
:20819800A6015B0281521C5F1F031F017B21A1042303CC82757B21A1032603CC82750D21AF
|
||||
:2081B8002603CC8275961C00051F1B4F5F9772FB1B7F4CA10C25F51E1B1C000AA60AF77BEA
|
||||
:2081D80021A101270E7B21A102271C7B21A104272120301E1FF66B1A5F0F171F027B1A6BD6
|
||||
:2081F800047B176B01201C161F90FE5F17031F0120111E1FE6036B16E602FE6B031F017B06
|
||||
:20821800166B04A6096B114B0A5F894B001E07891E0789CD86535B089F887B126B13840AE9
|
||||
:20823800115F417B124172FB1BAB30F74B0A5F894B001E07891E0789CD87845B081F0317F5
|
||||
:20825800011E0326041E0127067B11A1FF2CB87B114C5F9772FB1B89CD81465B025B1C8196
|
||||
:2082780052110F01965C5C1F101E101C000B7F1E16A300007B15A2007B14A2002E1416167A
|
||||
:2082980090504F1215974F12149517161F14A6016B01A60B6B0E4B0A5F894B001E1A891ECB
|
||||
:2082B8001A89CD85AE5B089F0A0E5F417B0E4172FB10AB30F74B0A5F894B001E1A891E1AAF
|
||||
:2082D80089CD86D05B081F1617147B0EA1002C034F2002A6011E1626041E1427034D26B6C3
|
||||
:2082F800887B0F6B10844D27140D0127100A0E7B0E6B0F5F7B0F9772FB10A62DF75F7B0FBD
|
||||
:208318009772FB1089CD81465B025B1181521ACE000D1F0DCE000B1F0B5F1F091F070F0494
|
||||
:208338000F020F01961C000389CD81665B024D2603CC83C97B03A12D260E1E09260A1E072B
|
||||
:208358002606A6016B0420697B03A1302403CC83EB7B03A1392303CC83EBA6016B021E0997
|
||||
:20837800891E09894B0A5F894B00CD88235B081F11170F7B030F195F90977B19909572F9A3
|
||||
:20839800119F1910979E190F9572A200309FA2006B149EA20017096B077B146B08AE7FFFF6
|
||||
:2083B80013094F12084F120724075F1F091F070F0190CE000D72F20DC6000C120C95C600A9
|
||||
:2083D8000B120B9790A327109EA2009FA2002403CC833C0D0126040D0226034F201A7B09AC
|
||||
:2083F800887B0B6B07846B050D0427051E05501F051E1D1605FFA6015B1A81AE849089CD13
|
||||
:2084180081465B021E0389CD81465B024B0ACD813884817B03A40F6B037B03887B04A10AD6
|
||||
:20843800842406AB306B032004AB576B037B0381AE849989CD81465B027B034EA40F88CD81
|
||||
:20845800842B5B0188CD8138847B0388CD842B5B0188CD81388481AE5011F6AA20F7AE50B2
|
||||
:2084780012F6AA20F7AE5242A611F7AE5243A606F7AE5245A62CF7810A4552524F523A20C8
|
||||
:048498000030780038
|
||||
:02898C000000E9
|
||||
:208000008200808382000000820080A0820080A1820080A2820080A3820080A4820080A57E
|
||||
:20802000820080A6820080A78200000082000000820080A8820080A9820080AA820080AB3D
|
||||
:20804000820080AC820080AD820080AE8200000082000000820080AF820080B0820080B1F9
|
||||
:208060008200810F8200811082008137820000008200000082000000820000008200000017
|
||||
:1D808300AE00082707724F00005A26F9AE00082709D6898BD700085A26F7CC8080D0
|
||||
:03808000CC849C11
|
||||
:20849C0052095F1F041F0272107F60AE50C67FAE5345A607F7AE5346A67DF7AE5341A601EA
|
||||
:2084BC00F7AE5340A685F7AE500CF6AA04F7AE500DF6AA04F7CD846F9ACE000D72F0041F41
|
||||
:2084DC0008C6000C12036B07C6000B1202CE000F905F881309909F1208909E12015B0125BF
|
||||
:2084FC0011CE000D1304C6000C1203C6000B12022411CE000D1F04CE000B1F02AE500AF666
|
||||
:20851C00A804F7965C89CD81665B024D27AB7B01A12B2718A12D2730A1482704A168269969
|
||||
:20853C00AE858389CD81465B02CC84D5CE000F1C0064CF000FA327102203CC84D535F40042
|
||||
:20855C00103501000FCC84D5CE000F1D0064CF000FA301F42503CC84D535F40010350100F5
|
||||
:20857C000FCC84D55B09810A50524F544F3A0A2B2F2D094C454420706572696F640A532F50
|
||||
:12859C0073097365742F676574204D73706565640A000E
|
||||
:06898E000000000001F4EE
|
||||
:2085AE00521D1E22A300007B21A2007B20A2002F040F0D2004A6016B0D0D0D27151E225068
|
||||
:2085CE004F12216B1B4F12201F186B167B1B6B1720081622171816201716161817141616BD
|
||||
:2085EE0017121E26A300007B25A2007B24A2002E1E7B27406B114F12266B104F12256B0F2E
|
||||
:20860E004F12246B0E1610170B160E170920081626170B16241709160B170716091E0789D6
|
||||
:20862E0090891E18891E1889CD86535B0817010D0D270D504F120290974F120190952002A3
|
||||
:20864E0016015B1D8152040F020F017B0B484F494D262E160D1E0B905859170D1F0B1E097C
|
||||
:20866E00130D7B08120C7B07120B240D160D1E0B549056170D1F0B20080C017B016B022049
|
||||
:20868E00CA7B026B041E09130D7B08120C7B07120B2513160972F20D7B08120C977B0712FB
|
||||
:2086AE000B9517091F07160D1E0B549056170D1F0B7B046B030A040D0326CA1E0916075B58
|
||||
:2086CE000481521E1E23A300007B22A2007B21A2002F040F112004A6016B110D1127151E24
|
||||
:2086EE0023504F12226B1C4F12211F146B127B1C6B13200816231714162117121614171962
|
||||
:20870E00161217171E27A300007B26A2007B25A2002F040F162004A6016B160D16271E7B01
|
||||
:20872E0028406B104F12276B0F4F12266B0E4F12256B0D160F170B160D1709200816271742
|
||||
:20874E000B16251709160B170716091E078990891E1D891E1D89CD87845B0817017B111801
|
||||
:20876E00164D270D504F120290974F12019095200216015B1E8152125F1F051F03A6206B86
|
||||
:20878E00027B15484F496B0116171E1590585917171F157B036B0F1E04887B076B138408BC
|
||||
:2087AE001259090F1F047B126B067B0F6B030D01271A7B06AA016B0A7B056B097B046B0839
|
||||
:2087CE007B036B0716091705160717031E05131B7B04121A7B031219252B160572F21B7B1F
|
||||
:2087EE0004121A6B0C7B03121917056B037B0C6B047B18AA0190977B1790957B16977B15C7
|
||||
:20880E009517171F150A020D022703CC878F1E1716155B128152409096905C961C00431F26
|
||||
:20882E00051E05E603961C00471F0B1E0B1F0D1E0D1F3F1E3F88E60197844290FF72A90045
|
||||
:20884E00021E05E6031E0B1F071E071F091E091F0F1E0F88E60397844290FF965C1F151E3D
|
||||
:20886E0015F66B171E05F697160B90E603429F1B171E15F71E15F66B1C1E05E60197160B64
|
||||
:20888E0090E602429F1B1C1E15F79096905C93FE1F1D1E05E6011E0B1F231E231F251E25F4
|
||||
:2088AE001F271E2788E60397844272FB1D90FF93FE1F291E05E6021E0B1F2B1E2B1F2D1E2E
|
||||
:2088CE002D1F311E3188E60297844272FB2990FF16051E05E6021E0B1F331E331F351E3533
|
||||
:2088EE001F371E3788E6019784429F90F71E055C1F391E05E60290971E0BE60390421E3989
|
||||
:20890E00FF160B1E05E6031E0B1F3D1E3D1F2F1E2F88F69784429F90F71E0B5C1F3B1E059F
|
||||
:20892E00E60390971E0BE60290421E3BFF1E0B1C00037F1E051C00037F965CE6036B14E616
|
||||
:20894E00026B13E6016B12F616431718164572F9131721887B13191A6B218419186B1F166C
|
||||
:1E896E0021EF02161FFFE603E602FE16491E4772F9219F1920979E191F95515B40813F
|
||||
:00000001FF
|
||||
Reference in New Issue
Block a user