Simple systick test/demo app

diff --git a/systick/Makefile b/systick/Makefile
new file mode 100644 (file)
index 0000000..41ae555
--- /dev/null
+++ b/systick/Makefile
@@ -0,0 +1,21 @@
+# Makefile for apps
+
+MODULE = $(shell basename $(shell cd .. && pwd && cd -))
+NAME = $(shell basename $(CURDIR))
+
+# Add this to your ~/.vimrc in order to get proper function of :make in vim :
+# let $COMPILE_FROM_IDE = 1
+ifeq ($(strip $(COMPILE_FROM_IDE)),)
+       PRINT_DIRECTORY = --no-print-directory
+else
+       PRINT_DIRECTORY =
+       LANG = C
+endif
+
+.PHONY: $(NAME).bin
+$(NAME).bin:
+       @make -C ../../.. ${PRINT_DIRECTORY} NAME=$(NAME) MODULE=$(MODULE) apps/$(MODULE)/$(NAME)/$@
+
+clean mrproper:
+       @make -C ../../.. ${PRINT_DIRECTORY} $@
+

diff --git a/systick/main.c b/systick/main.c
new file mode 100644 (file)
index 0000000..0191aad
--- /dev/null
+++ b/systick/main.c
@@ -0,0 +1,107 @@
+/****************************************************************************
+ *   apps/base/systick/main.c
+ *
+ * Simple systick example
+ *
+ * Copyright 2022 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 3 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"
+#include "extdrv/tmp101_temp_sensor.h"
+
+#define MODULE_VERSION    0x04
+#define MODULE_NAME "GPIO Demo Module"
+
+
+#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 },
+       /* I2C 0 */
+       { LPC_I2C0_SCL_PIO_0_10, (LPC_IO_DIGITAL | LPC_IO_OPEN_DRAIN_ENABLE) },
+       { LPC_I2C0_SDA_PIO_0_11, (LPC_IO_DIGITAL | LPC_IO_OPEN_DRAIN_ENABLE) },
+       ARRAY_LAST_PIO,
+};
+
+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();
+}
+
+
+volatile int flag = 0;
+void set_flag(uint32_t tick)
+{
+       flag = 1;
+}
+
+/***************************************************************************** */
+int main(void)
+{
+       system_init();
+       uart_on(UART0, 115200, NULL);
+
+       /* For tests, send MQTT ping packets every 2 seconds */
+       add_systick_callback(set_flag, 2*1000);
+
+       while (1) {
+               /* Check for received packet on serial line and handle them */
+               if (flag != 0) {
+                       flag = 0;
+                       status_led(green_toggle);
+               }
+               msleep(250);
+               status_led(red_toggle);
+       }
+       return 0;
+}
+