From 4d116df20ae2d13bbc29344a91e557448cd8c19b Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Sun, 25 Sep 2022 13:57:08 -0700 Subject: [PATCH] altos: Add sample samd21 application for snekboard This runs a primitive application and flash loader on snekboard for samd21 development. Signed-off-by: Keith Packard --- src/snekboard/Makefile | 64 ++++++++++++++++++++++++++++ src/snekboard/ao_pins.h | 43 +++++++++++++++++++ src/snekboard/flash-loader/Makefile | 8 ++++ src/snekboard/flash-loader/ao_pins.h | 40 +++++++++++++++++ src/snekboard/snekboard.c | 28 ++++++++++++ 5 files changed, 183 insertions(+) create mode 100644 src/snekboard/Makefile create mode 100644 src/snekboard/ao_pins.h create mode 100644 src/snekboard/flash-loader/Makefile create mode 100644 src/snekboard/flash-loader/ao_pins.h create mode 100644 src/snekboard/snekboard.c diff --git a/src/snekboard/Makefile b/src/snekboard/Makefile new file mode 100644 index 00000000..aacd132b --- /dev/null +++ b/src/snekboard/Makefile @@ -0,0 +1,64 @@ +# +# AltOS build +# +# + +include ../samd21/Makefile.defs + +INC = \ + ao.h \ + ao_arch.h \ + ao_arch_funcs.h \ + ao_boot.h \ + ao_pins.h \ + ao_product.h \ + ao_task.h \ + samd21.h \ + Makefile + +ALTOS_SRC = \ + ao_boot_chain.c \ + ao_romconfig.c \ + ao_interrupt.c \ + ao_product.c \ + ao_cmd.c \ + ao_task.c \ + ao_led.c \ + ao_stdio.c \ + ao_panic.c \ + ao_timer.c \ + ao_mutex.c \ + ao_usb_samd21.c + +PRODUCT=SnekBoard +PRODUCT_DEF=-DSNEKBOARD +IDPRODUCT=0x000a + +CFLAGS = $(PRODUCT_DEF) $(SAMD21_CFLAGS) + +PROGNAME=snekboard +PROG=$(PROGNAME)-$(VERSION).elf +HEX=$(PROGNAME)-$(VERSION).ihx + +SRC=$(ALTOS_SRC) snekboard.c +OBJ=$(SRC:.c=.o) + +all: $(PROG) $(HEX) + +$(PROG): Makefile $(OBJ) altos.ld + $(call quiet,CC) $(LDFLAGS) -o $(PROG) $(OBJ) $(LIBS) + +$(OBJ): $(INC) + +load: $(PROG) + stm-load $(PROG) + +distclean: clean + +clean: + rm -f *.o $(PROGNAME)-*.elf $(PROGNAME)-*.ihx $(PROGNAME)-*.map + rm -f ao_product.h + +install: + +uninstall: diff --git a/src/snekboard/ao_pins.h b/src/snekboard/ao_pins.h new file mode 100644 index 00000000..4f3cba80 --- /dev/null +++ b/src/snekboard/ao_pins.h @@ -0,0 +1,43 @@ +/* + * Copyright © 2022 Keith Packard + * + * 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., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#ifndef _AO_PINS_H_ +#define _AO_PINS_H_ + +#define LED_0_PORT (&samd21_port_a) +#define LED_0_PIN 2 + +#define LED_BLUE (1 << 0) + +#define AO_LED_PANIC LED_BLUE + +#define HAS_BEEP 0 + +#define HAS_USB 1 + +#define HAS_LED 1 + +#define AO_XOSC 1 +#define AO_XOSC_FREQ 16000000 +#define AO_XOSC_DIV 256 +#define AO_XOSC_MUL 768 + +#define AO_AHB_PRESCALER 1 +#define AO_APBA_PRESCALER 1 + +#endif /* _AO_PINS_H_ */ diff --git a/src/snekboard/flash-loader/Makefile b/src/snekboard/flash-loader/Makefile new file mode 100644 index 00000000..12330d35 --- /dev/null +++ b/src/snekboard/flash-loader/Makefile @@ -0,0 +1,8 @@ +# +# AltOS flash loader build +# +# + +TOPDIR=../.. +HARDWARE=snekboard +include $(TOPDIR)/samd21/Makefile-flash.defs diff --git a/src/snekboard/flash-loader/ao_pins.h b/src/snekboard/flash-loader/ao_pins.h new file mode 100644 index 00000000..fb399818 --- /dev/null +++ b/src/snekboard/flash-loader/ao_pins.h @@ -0,0 +1,40 @@ +/* + * Copyright © 2013 Keith Packard + * + * 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., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#ifndef _AO_PINS_H_ +#define _AO_PINS_H_ + +#include + +/* ANALOG1 to gnd for boot loader mode */ + +#define AO_BOOT_PIN 1 +#define AO_BOOT_APPLICATION_GPIO (samd21_port_b) +#define AO_BOOT_APPLICATION_PIN 8 +#define AO_BOOT_APPLICATION_VALUE 1 +#define AO_BOOT_APPLICATION_MODE AO_MODE_PULL_UP + +/* USB */ +#define HAS_USB 1 + +#define AO_XOSC 1 +#define AO_XOSC_FREQ 16000000 +#define AO_XOSC_DIV 256 +#define AO_XOSC_MUL 768 + +#endif /* _AO_PINS_H_ */ diff --git a/src/snekboard/snekboard.c b/src/snekboard/snekboard.c new file mode 100644 index 00000000..19f5975c --- /dev/null +++ b/src/snekboard/snekboard.c @@ -0,0 +1,28 @@ +/* + * Copyright © 2016 Keith Packard + * + * 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. + */ + +#include +#include + +int main(void) +{ + ao_led_init(); + ao_clock_init(); + ao_task_init(); + ao_timer_init(); + ao_usb_init(); + ao_cmd_init(); + ao_start_scheduler(); + return 0; +} -- 2.30.2