target= i2ctest
firm_src = ${wildcard at*${board}.c}
firmware = ${firm_src:.c=.axf}
-simavr = ../../
+simavr = ../..
SHELL = /bin/bash
IPATH = .
-IPATH += ../parts
+IPATH += ${simavr}/examples/shared
+IPATH += ${simavr}/examples/parts
IPATH += ${simavr}/include
IPATH += ${simavr}/simavr/sim
VPATH = .
-VPATH += ../parts
-VPATH += ../shared
+VPATH += ${simavr}/examples/shared
+VPATH += ${simavr}/examples/parts
-all: obj atmega48_${target}.axf ${target}
+all: obj ${firmware} ${target}
include ${simavr}/Makefile.common
-atmega48_${target}.axf: atmega48_${target}.c
-atmega48_${target}.axf: avr_twi_master.c avr_twi_master.h
+atmega1280_${target}.axf: atmega1280_${target}.c
+atmega1280_${target}.axf: ${simavr}/examples/shared/avr_twi_master.c
+atmega1280_${target}.axf: ${simavr}/examples/shared/avr_twi_master.h
board = ${OBJ}/${target}.elf
--- /dev/null
+/*
+ atmega48_i2ctest.c
+
+ Copyright 2008-2011 Michel Pollet <buserror@gmail.com>
+
+ This file is part of simavr.
+
+ simavr 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 3 of the License, or
+ (at your option) any later version.
+
+ simavr 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 simavr. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <avr/sleep.h>
+
+// for linker, emulator, and programmer's sake
+#include "avr_mcu_section.h"
+AVR_MCU(F_CPU, "atmega1280");
+
+#include "../shared/avr_twi_master.h"
+
+#include <stdio.h>
+
+static int uart_putchar(char c, FILE *stream) {
+ if (c == '\n')
+ uart_putchar('\r', stream);
+ loop_until_bit_is_set(UCSR0A, UDRE0);
+ UDR0 = c;
+ return 0;
+}
+
+static FILE mystdout = FDEV_SETUP_STREAM(uart_putchar, NULL,
+ _FDEV_SETUP_WRITE);
+
+int main()
+{
+ stdout = &mystdout;
+
+ sei();
+
+ TWI_Master_Initialise();
+
+ { // write 2 bytes at some random address
+ uint8_t msg[8] = {
+ 0xa0, // TWI address,
+ 0xaa, 0x01, // eeprom address, in little endian
+ 0xde, 0xad, // data bytes
+ };
+ TWI_Start_Transceiver_With_Data(msg, 5, 1);
+
+ while (TWI_Transceiver_Busy())
+ sleep_mode();
+ }
+ {
+ uint8_t msg[8] = {
+ 0xa0, // TWI address,
+ 0xa8, 0x01, // eeprom address, in little endian
+ };
+ TWI_Start_Transceiver_With_Data(msg, 3, 0); // dont send stop!
+
+ while (TWI_Transceiver_Busy())
+ sleep_mode();
+ }
+ {
+ uint8_t msg[9] = {
+ 0xa0 + 1, // TWI address,
+ };
+ TWI_Start_Transceiver_With_Data(msg, 9, 1); // write 1 byte, read 8, send stop
+
+ while (TWI_Transceiver_Busy())
+ sleep_mode();
+ }
+ cli();
+ sleep_mode();
+}
+
+++ /dev/null
-/*
- atmega48_i2ctest.c
-
- Copyright 2008-2011 Michel Pollet <buserror@gmail.com>
-
- This file is part of simavr.
-
- simavr 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 3 of the License, or
- (at your option) any later version.
-
- simavr 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 simavr. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <avr/io.h>
-#include <avr/interrupt.h>
-#include <avr/sleep.h>
-
-// for linker, emulator, and programmer's sake
-#include "avr_mcu_section.h"
-AVR_MCU(F_CPU, "atmega48");
-
-#include "avr_twi_master.h"
-
-#include <stdio.h>
-
-static int uart_putchar(char c, FILE *stream) {
- if (c == '\n')
- uart_putchar('\r', stream);
- loop_until_bit_is_set(UCSR0A, UDRE0);
- UDR0 = c;
- return 0;
-}
-
-static FILE mystdout = FDEV_SETUP_STREAM(uart_putchar, NULL,
- _FDEV_SETUP_WRITE);
-
-int main()
-{
- stdout = &mystdout;
-
- sei();
- TWI_Master_Initialise();
-
- { // write 2 bytes at some random address
- uint8_t msg[8] = {
- 0xa0, // TWI address,
- 0xaa, 0x01, // eeprom address, in little endian
- 0xde, 0xad, // data bytes
- };
- TWI_Start_Transceiver_With_Data(msg, 5, 1);
-
- while (TWI_Transceiver_Busy())
- sleep_mode();
- }
- {
- uint8_t msg[8] = {
- 0xa0, // TWI address,
- 0xa8, 0x01, // eeprom address, in little endian
- };
- TWI_Start_Transceiver_With_Data(msg, 3, 0); // dont send stop!
-
- while (TWI_Transceiver_Busy())
- sleep_mode();
- }
- {
- uint8_t msg[9] = {
- 0xa0 + 1, // TWI address,
- };
- TWI_Start_Transceiver_With_Data(msg, 9, 1); // write 1 byte, read 8, send stop
-
- while (TWI_Transceiver_Busy())
- sleep_mode();
- }
- cli();
- sleep_mode();
-}
-
int main(int argc, char *argv[])
{
elf_firmware_t f;
- const char * fname = "atmega48_i2ctest.axf";
+ const char * fname = "atmega1280_i2ctest.axf";
printf("Firmware pathname is %s\n", fname);
elf_read_firmware(fname, &f);
* Pressing "r" and "s" during the demo will start and stop recording
* the pin changes
*/
- avr_vcd_init(avr, "gtkwave_output.vcd", &vcd_file, 100000 /* usec */);
- avr_vcd_add_signal(&vcd_file,
- avr_io_getirq(avr, AVR_IOCTL_TWI_GETIRQ(0), TWI_IRQ_STATUS), 8 /* bits */ ,
- "TWSR" );
+// avr_vcd_init(avr, "gtkwave_output.vcd", &vcd_file, 100000 /* usec */);
+// avr_vcd_add_signal(&vcd_file,
+// avr_io_getirq(avr, AVR_IOCTL_TWI_GETIRQ(0), TWI_IRQ_STATUS), 8 /* bits */ ,
+// "TWSR" );
- printf( "Demo launching:\n");
+ printf( "\nDemo launching:\n");
- while (1) {
- int state = avr_run(avr);
- if ( state == cpu_Done || state == cpu_Crashed)
- break;
- }
+ int state = cpu_Running;
+ while((state!= cpu_Done)&&(state != cpu_Crashed ))
+ state = avr_run(avr);
+
+ printf("\n\nPress enter to terminate the program.");
+ getchar();
}
+++ /dev/null
-#
-# Copyright 2008-2012 Michel Pollet <buserror@gmail.com>
-#
-# This file is part of simavr.
-#
-# simavr 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 3 of the License, or
-# (at your option) any later version.
-#
-# simavr 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 simavr. If not, see <http://www.gnu.org/licenses/>.
-
-target= i2ctest
-firm_src = ${wildcard at*${board}.c}
-firmware = ${firm_src:.c=.axf}
-simavr = ../..
-#simavr = /usr/local/lib/simavr
-
-SHELL = /bin/bash
-
-IPATH = .
-#IPATH += ../parts
-IPATH += ${simavr}/examples/parts
-IPATH += ${simavr}/include
-IPATH += ${simavr}/simavr/sim
-
-VPATH = .
-VPATH += ../parts
-VPATH += ../shared
-
-
-all: obj atmega1280_${target}.axf ${target}
-
-include ${simavr}/Makefile.common
-
-atmega1280_${target}.axf: atmega1280_${target}.c
-atmega1280_${target}.axf: avr_twi_master.c avr_twi_master.h
-
-board = ${OBJ}/${target}.elf
-
-${board} : ${OBJ}/${target}.o
-${board} : ${OBJ}/i2c_eeprom.o
-${board} : ${simavr}/simavr/${OBJ}/libsimavr.a
-
-${target}: ${board}
- @echo $@ done
-
-clean: clean-${OBJ}
- rm -rf *.hex *.a *.axf ${target} *.vcd .*.swo .*.swp .*.swm .*.swn
+++ /dev/null
-
-This contains a sample program to demonstrate the use of simavr
-using 'custom' code, and own "peripherals". It shows how it is
-possible to "hook" code to the AVR pins, and also how to make
-"peripherals" and also hook them up to AVR pins.
-
-This demo demonstrate how to write a i2c/twi "peripheral" and hook it to
-an AVR, and then run a firmware that behaves as a TWI "master" to talk to it.
-
-The code uses a generic i2c "eeprom" were the AVR writes some bytes,
-then read them again. The AVR code is based on the Atmel reference
-implementation, with quite a few changes to make it more functional.
-
-Thid "board" doesn't use opengl, the eeprom will display what the
-transactions are.
\ No newline at end of file
+++ /dev/null
-/*
- atmega48_i2ctest.c
-
- Copyright 2008-2011 Michel Pollet <buserror@gmail.com>
-
- This file is part of simavr.
-
- simavr 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 3 of the License, or
- (at your option) any later version.
-
- simavr 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 simavr. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <avr/io.h>
-#include <avr/interrupt.h>
-#include <avr/sleep.h>
-
-// for linker, emulator, and programmer's sake
-#include "avr_mcu_section.h"
-AVR_MCU(F_CPU, "atmega1280");
-
-#include "avr_twi_master.h"
-
-#include <stdio.h>
-
-static int uart_putchar(char c, FILE *stream) {
- if (c == '\n')
- uart_putchar('\r', stream);
- loop_until_bit_is_set(UCSR0A, UDRE0);
- UDR0 = c;
- return 0;
-}
-
-static FILE mystdout = FDEV_SETUP_STREAM(uart_putchar, NULL,
- _FDEV_SETUP_WRITE);
-
-int main()
-{
- stdout = &mystdout;
-
- sei();
-
- TWI_Master_Initialise();
-
- { // write 2 bytes at some random address
- uint8_t msg[8] = {
- 0xa0, // TWI address,
- 0xaa, 0x01, // eeprom address, in little endian
- 0xde, 0xad, // data bytes
- };
- TWI_Start_Transceiver_With_Data(msg, 5, 1);
-
- while (TWI_Transceiver_Busy())
- sleep_mode();
- }
- {
- uint8_t msg[8] = {
- 0xa0, // TWI address,
- 0xa8, 0x01, // eeprom address, in little endian
- };
- TWI_Start_Transceiver_With_Data(msg, 3, 0); // dont send stop!
-
- while (TWI_Transceiver_Busy())
- sleep_mode();
- }
- {
- uint8_t msg[9] = {
- 0xa0 + 1, // TWI address,
- };
- TWI_Start_Transceiver_With_Data(msg, 9, 1); // write 1 byte, read 8, send stop
-
- while (TWI_Transceiver_Busy())
- sleep_mode();
- }
- cli();
- sleep_mode();
-}
-
+++ /dev/null
-/*
- i2ctest.c
-
- Copyright 2008-2011 Michel Pollet <buserror@gmail.com>
-
- This file is part of simavr.
-
- simavr 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 3 of the License, or
- (at your option) any later version.
-
- simavr 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 simavr. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <libgen.h>
-#include <pthread.h>
-
-#include "sim_avr.h"
-#include "avr_twi.h"
-#include "sim_elf.h"
-#include "sim_gdb.h"
-#include "sim_vcd_file.h"
-#include "i2c_eeprom.h"
-
-avr_t * avr = NULL;
-avr_vcd_t vcd_file;
-
-i2c_eeprom_t ee;
-
-int main(int argc, char *argv[])
-{
- elf_firmware_t f;
- const char * fname = "atmega1280_i2ctest.axf";
-
- printf("Firmware pathname is %s\n", fname);
- elf_read_firmware(fname, &f);
-
- printf("firmware %s f=%d mmcu=%s\n", fname, (int)f.frequency, f.mmcu);
-
- avr = avr_make_mcu_by_name(f.mmcu);
- if (!avr) {
- fprintf(stderr, "%s: AVR '%s' now known\n", argv[0], f.mmcu);
- exit(1);
- }
- avr_init(avr);
- avr_load_firmware(avr, &f);
-
- // initialize our 'peripheral'
- i2c_eeprom_init(avr, &ee, 0xa0, 0xfe, NULL, 1024);
-
- i2c_eeprom_attach(avr, &ee, AVR_IOCTL_TWI_GETIRQ(0));
- ee.verbose = 1;
-
- // even if not setup at startup, activate gdb if crashing
- avr->gdb_port = 1234;
- if (0) {
- //avr->state = cpu_Stopped;
- avr_gdb_init(avr);
- }
-
- /*
- * VCD file initialization
- *
- * This will allow you to create a "wave" file and display it in gtkwave
- * Pressing "r" and "s" during the demo will start and stop recording
- * the pin changes
- */
-// avr_vcd_init(avr, "gtkwave_output.vcd", &vcd_file, 100000 /* usec */);
-// avr_vcd_add_signal(&vcd_file,
-// avr_io_getirq(avr, AVR_IOCTL_TWI_GETIRQ(0), TWI_IRQ_STATUS), 8 /* bits */ ,
-// "TWSR" );
-
- printf( "\nDemo launching:\n");
-
- int state = cpu_Running;
- while((state!= cpu_Done)&&(state != cpu_Crashed ))
- state = avr_run(avr);
-
- printf("\n\nPress enter to terminate the program.");
- getchar();
-}
projects / simavr / commitdiff