From fac680ecf48c80e5373725038030a6677e368c66 Mon Sep 17 00:00:00 2001 From: chrysn Date: Tue, 17 Apr 2012 00:07:26 +0200 Subject: very simple demo for other board using efm32lib and hacked-together makefiles --- .../miniblink-efm32lib/Makefile | 26 ++++++++ .../miniblink-efm32lib/README | 9 +++ .../miniblink-efm32lib/core_cm3.h | 1 + .../miniblink-efm32lib/efm32_cmu.c | 1 + .../miniblink-efm32lib/efm32_gpio.c | 1 + .../miniblink-efm32lib/miniblink.c | 70 ++++++++++++++++++++++ 6 files changed, 108 insertions(+) create mode 100644 examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/Makefile create mode 100644 examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/README create mode 120000 examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/core_cm3.h create mode 120000 examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/efm32_cmu.c create mode 120000 examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/efm32_gpio.c create mode 100644 examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/miniblink.c (limited to 'examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib') diff --git a/examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/Makefile b/examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/Makefile new file mode 100644 index 0000000..df8985a --- /dev/null +++ b/examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/Makefile @@ -0,0 +1,26 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## Copyright (C) 2012 chrysn +## +## This library is free software: you can redistribute it and/or modify +## it under the terms of the GNU Lesser General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This library 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 Lesser General Public License for more details. +## +## You should have received a copy of the GNU Lesser General Public License +## along with this library. If not, see . +## + +BINARY = miniblink + +OBJS += efm32_gpio.o efm32_cmu.o +CFLAGS += -I/tmp/EFM32_CMSIS_2.4.1/efm32lib/inc/ -I /tmp/EFM32_CMSIS_2.4.1/CMSIS/CM3/DeviceSupport/EnergyMicro/EFM32/ -DEFM32G880F128 -I. + +include ../Makefile.include diff --git a/examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/README b/examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/README new file mode 100644 index 0000000..2500f4d --- /dev/null +++ b/examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/README @@ -0,0 +1,9 @@ +==================================================== +EM32-32G880F128-H Examples miniblink-efm32lib README +==================================================== + +This is a port of the miniblink example to the efm32lib library. + +It's intended for the EM32-32G880F128-H eval board. It should blink LED1 on the +board, just as the original miniblink example does. + diff --git a/examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/core_cm3.h b/examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/core_cm3.h new file mode 120000 index 0000000..b7a19ea --- /dev/null +++ b/examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/core_cm3.h @@ -0,0 +1 @@ +../../efm32-tg-stk3300/miniblink-efm32lib/core_cm3.h \ No newline at end of file diff --git a/examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/efm32_cmu.c b/examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/efm32_cmu.c new file mode 120000 index 0000000..168574b --- /dev/null +++ b/examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/efm32_cmu.c @@ -0,0 +1 @@ +/tmp/EFM32_CMSIS_2.4.1/efm32lib/src/efm32_cmu.c \ No newline at end of file diff --git a/examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/efm32_gpio.c b/examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/efm32_gpio.c new file mode 120000 index 0000000..0b2df21 --- /dev/null +++ b/examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/efm32_gpio.c @@ -0,0 +1 @@ +/tmp/EFM32_CMSIS_2.4.1/efm32lib/src/efm32_gpio.c \ No newline at end of file diff --git a/examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/miniblink.c b/examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/miniblink.c new file mode 100644 index 0000000..3838c94 --- /dev/null +++ b/examples/efm32/tinygecko/olimex-em32-32g880f128-h/miniblink-efm32lib/miniblink.c @@ -0,0 +1,70 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * Copyright (C) 2012 chrysn + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see . + */ + +#include +#include + +void led_setup(void); +void led_toggle(void); + +/** @file + * Minimal example for making the User LED of the olimex EM32-32G880F128-H eval + * board blink. + */ + +/** + * Toggle the User LED in an infinite loop, with time between the toggling + * determined by a busy loop stupidly counting up. + */ + +int main(void) +{ + int x; + + led_setup(); + + while(1) { + for(x = 0; x < 200000; ++x) asm("mov r0,r0"); /* no-op, prevent compiler from optimizing this away */ + led_toggle(); + }; +} + +/** + * Enable GPIO, and set up port E1 as an output pin, and inverted. + */ + +void led_setup(void) +{ + // Before GPIO works, according to d0034_efm32tg_reference_manual.pdf + // note in section 28.3.7, we'll have to enable GPIO in CMU_HFPERCLKEN0 + + CMU->HFPERCLKEN0 |= _CMU_HFPERCLKEN0_GPIO_MASK; + + // The User LED is connected to PD7 to the plus side of the LED + // according to t0011_efm32_tiny_gecko_stk_user_manual.pdf figures 16.2 + // and 16.3 (called UIF_LED0) + + GPIO_PinModeSet(gpioPortE, 1, gpioModePushPull, 0); +} + +void led_toggle(void) +{ + GPIO_PinOutToggle(gpioPortE, 1); +} -- cgit v1.2.3