--- /dev/null
+Deep power down support example
+
+Copyright 2016 Nathael Pajani <nathael.pajani@ed3l.fr>
+
+
+/* ****************************************************************************
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ *************************************************************************** */
+
+This example shows the support of the deep power down functionnality of the
+LPC1224 micro-controller.
+
+Once in deep power down, the LPC1224 can only be woken up by an RTC interrupt
+or the WAKEUP pin going LOW (pin 39, GPIO1_3).
+Even the RESET pin going Low will not reset the micro-controller.
+
+In this example, the LPC1224 goes to deep power down mode when ISP button is
+released.
+You must either add an external pull-up and a button to the GPIO1_3 (AD5) Pin
+of the LPC1224-BO Board, or Power the board OFF and ON again.
+
+
--- /dev/null
+/****************************************************************************
+ * apps/base/power_down/main.c
+ *
+ * Deep power down example
+ *
+ * Copyright 2016 Nathael Pajani <nathael.pajani@ed3l.fr>
+ *
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ *
+ *************************************************************************** */
+
+#include "core/system.h"
+#include "core/systick.h"
+#include "core/pio.h"
+#include "lib/stdio.h"
+#include "drivers/serial.h"
+#include "drivers/gpio.h"
+#include "extdrv/status_led.h"
+
+#define MODULE_VERSION 0x03
+#define MODULE_NAME "LPC1224-BO"
+
+#define SELECTED_FREQ FREQ_SEL_48MHz
+
+/***************************************************************************** */
+/* Pins configuration */
+/* pins blocks are passed to set_pins() for pins configuration.
+ * Unused pin blocks can be removed safely with the corresponding set_pins() call
+ * All pins blocks may be safelly merged in a single block for single set_pins() call..
+ */
+const struct pio_config common_pins[] = {
+ /* UART 0 */
+ { LPC_UART0_RX_PIO_0_1, LPC_IO_DIGITAL },
+ { LPC_UART0_TX_PIO_0_2, LPC_IO_DIGITAL },
+ /* GPIO */
+ { LPC_GPIO_0_12, (LPC_IO_MODE_PULL_UP | LPC_IO_DIGITAL) },
+ ARRAY_LAST_PIO,
+};
+
+const struct pio button = LPC_GPIO_0_12;
+
+const struct pio status_led_green = LPC_GPIO_1_4;
+const struct pio status_led_red = LPC_GPIO_1_5;
+
+
+/***************************************************************************** */
+void system_init()
+{
+ /* Stop the watchdog */
+ startup_watchdog_disable(); /* Do it right now, before it gets a chance to break in */
+ system_brown_out_detection_config(0); /* No ADC used */
+ system_set_default_power_state();
+ clock_config(SELECTED_FREQ);
+ set_pins(common_pins);
+ gpio_on();
+ status_led_config(&status_led_green, &status_led_red);
+ /* System tick timer MUST be configured and running in order to use the sleeping
+ * functions */
+ systick_timer_on(1); /* 1ms */
+ systick_start();
+}
+
+/* Define our fault handler. This one is not mandatory, the dummy fault handler
+ * will be used when it's not overridden here.
+ * Note : The default one does a simple infinite loop. If the watchdog is deactivated
+ * the system will hang.
+ */
+void fault_info(const char* name, uint32_t len)
+{
+ uprintf(UART0, name);
+ while (1);
+}
+
+
+uint32_t isp_btn_request = 0;
+void isp_btn(uint32_t gpio)
+{
+ isp_btn_request++;
+}
+
+/***************************************************************************** */
+int main(void)
+{
+ system_init();
+ uart_on(UART0, 115200, NULL);
+ set_gpio_callback(&isp_btn, &button, EDGE_RISING);
+
+ uprintf(UART0, "Config done.\n");
+
+ isp_btn_request = 0;
+ while (1) {
+ chenillard(100);
+ if (isp_btn_request == 1) {
+ uprintf(UART0, "ISP Button\n");
+ serial_flush(UART0);
+ gpio_clear(status_led_green);
+ gpio_clear(status_led_red);
+ msleep(50);
+ enter_deep_power_down();
+ }
+ }
+
+ return 0;
+}
+
