diff options
Diffstat (limited to 'testhal/STM32F1xx/EXT_WAKEUP/main.c')
| -rw-r--r-- | testhal/STM32F1xx/EXT_WAKEUP/main.c | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/testhal/STM32F1xx/EXT_WAKEUP/main.c b/testhal/STM32F1xx/EXT_WAKEUP/main.c new file mode 100644 index 000000000..986721fc9 --- /dev/null +++ b/testhal/STM32F1xx/EXT_WAKEUP/main.c @@ -0,0 +1,167 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011 Giovanni Di Sirio.
+
+ This file is part of ChibiOS/RT.
+
+ ChibiOS/RT 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.
+
+ ChibiOS/RT 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, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * This program demonstrate how to use interrupt from EXTI line for waking
+ * up MCU from stop mode. EXTI line connected to UART RX pin and generate
+ * interrupt on falling edge of start bit.
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+#include "shell.h"
+#include "chprintf.h"
+
+
+
+/* Wake up callback.*/
+static void extcb2(EXTDriver *extp, expchannel_t channel) {
+
+ (void)extp;
+ (void)channel;
+
+ chSysLockFromIsr();
+ /* we must reinit clocks after waking up ESPECIALLY if use HSE or HSI+PLL */
+ stm32_clock_init();
+
+ extChannelDisableI(&EXTD1, 10);
+ chSysUnlockFromIsr();
+}
+
+
+static const EXTConfig extcfg = {
+ {
+ {EXT_CH_MODE_DISABLED, NULL},
+ {EXT_CH_MODE_DISABLED, NULL},
+ {EXT_CH_MODE_DISABLED, NULL},
+ {EXT_CH_MODE_DISABLED, NULL},
+ {EXT_CH_MODE_DISABLED, NULL},
+ {EXT_CH_MODE_DISABLED, NULL},
+ {EXT_CH_MODE_DISABLED, NULL},
+ {EXT_CH_MODE_DISABLED, NULL},
+ {EXT_CH_MODE_DISABLED, NULL},
+ {EXT_CH_MODE_DISABLED, NULL},
+ {EXT_CH_MODE_FALLING_EDGE, extcb2},
+ {EXT_CH_MODE_DISABLED, NULL},
+ {EXT_CH_MODE_DISABLED, NULL},
+ {EXT_CH_MODE_DISABLED, NULL},
+ {EXT_CH_MODE_DISABLED, NULL},
+ {EXT_CH_MODE_DISABLED, NULL},
+ },
+ EXT_MODE_EXTI(0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ EXT_MODE_GPIOA,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0)
+};
+
+
+
+static void cmd_reboot(BaseChannel *chp, int argc, char *argv[]){
+ (void)argv;
+ if (argc > 0) {
+ chprintf(chp, "Usage: rboot\r\n");
+ return;
+ }
+ chprintf(chp, "rebooting...\r\n");
+ chThdSleepMilliseconds(100); // time to print out message in terminal
+ NVIC_SystemReset();
+}
+
+static void cmd_sleep(BaseChannel *chp, int argc, char *argv[]){
+ (void)argv;
+ if (argc > 0) {
+ chprintf(chp, "Usage: sleep\r\n");
+ return;
+ }
+ chprintf(chp, "Going to sleep. Type any character to wake up.\r\n");
+
+ chThdSleepMilliseconds(200); // time to print out message in terminal
+ extChannelEnable(&EXTD1, 10);
+
+ PWR->CR |= (PWR_CR_LPDS | PWR_CR_CSBF | PWR_CR_CWUF);
+ PWR->CR &= ~PWR_CR_PDDS; // explicit clear PDDS, just to be safe
+ SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
+ __WFI();
+}
+
+
+static const ShellCommand commands[] = {
+ {"reboot", cmd_reboot},
+ {"sleep", cmd_sleep},
+ {NULL, NULL}
+};
+
+static const ShellConfig shell_cfg1 = {
+ (BaseChannel *)&SD1,
+ commands
+};
+
+/*
+ * Application entry point.
+ */
+int main(void) {
+
+ /*
+ * System initializations.
+ * - HAL initialization, this also initializes the configured device drivers
+ * and performs the board-specific initializations.
+ * - Kernel initialization, the main() function becomes a thread and the
+ * RTOS is active.
+ */
+ halInit();
+ chSysInit();
+
+ /*
+ * Activates the EXT driver 1.
+ */
+ extStart(&EXTD1, &extcfg);
+
+ /* Activates the serial driver using the driver default configuration. */
+ sdStart(&SD1, NULL);
+
+ /* Setting up ports. */
+ palSetPadMode(IOPORT1, 9, PAL_MODE_STM32_ALTERNATE_PUSHPULL);
+ palSetPadMode(IOPORT1, 10, PAL_MODE_INPUT);
+
+ /* Shell manager initialization. */
+ shellInit();
+ static WORKING_AREA(waShell, 512);
+ shellCreateStatic(&shell_cfg1, waShell, sizeof(waShell), NORMALPRIO);
+
+ /* Start blink indicating. */
+ chThdSleepMilliseconds(2000); // timeuot to differ reboot and wake up from sleep
+ while (TRUE) {
+ chThdSleepMilliseconds(100);
+ palTogglePad(IOPORT3, GPIOC_LED);
+ }
+}
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