1 files changed, 95 insertions, 0 deletions
diff --git a/blink.c b/blink.c
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index 0000000..c921348
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+++ b/blink.c
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+/************************************************************************/
+/*                                                                      */
+/*  File:           blink.c                                             */
+/*  Description:    the "hello world" for armen OS                      */
+/*  Version:        1.0                                                 */
+/*  Author:         Otto Mattik                                         */
+/*                                                                      */
+/*  (C)Copyright Otto Mattik 2021.                                      */
+/*                                                                      */
+/*  This file is distributed under the CeCILL-V2.1 licence.             */
+/*  For more details, please visit the website cecill.info              */
+/*                                                                      */
+/************************************************************************/
+
+#include "armen.h"
+
+#ifndef ARDUINO
+  #error "no or unaivalable mcu defined"
+#endif
+
+/*
+ * schematic:
+ *           +---+
+ *  P12 >----|220|----+
+ *           +---+    |
+ *                   ---
+ *             LED2  \ /
+ *                  -----
+ *                    |
+ *                   ---
+ *                   GND
+*/
+
+#if defined(__AVR_ATmega2560__)
+  #define PIN_LED1      GPIO15  /* mega P13 (onboard led) */
+  #define PIN_LED2      GPIO14  /* mega P12 */
+#else
+  #define PIN_LED1      GPIO5   /* uno P13 (onboard led) */
+  #define PIN_LED2      GPIO4   /* uno P12 */
+#endif
+
+#ifdef DEBUG
+extern void uart_printf( uint8_t, char*, ... );
+#endif
+
+/*
+ * 1st thread
+*/
+void* led1( void* param )
+{
+    for( ;; )
+    {
+        sleep( 1000 );
+        gpio_pin_set( PIN_LED1, 1 - gpio_pin_get( PIN_LED1 ) );
+    }
+}
+
+/*
+ * 2nd thread
+*/
+void* led2( void* param )
+{
+    for( ;; )
+    {
+        sleep( 1400 );
+        gpio_pin_set( PIN_LED2, 1 - gpio_pin_get( PIN_LED2 ) );
+    }
+}
+
+/*
+ * initialization
+*/
+void setup( void )
+{
+#ifdef DEBUG
+    uart_open( 0, B115200 );
+#endif
+    gpio_pin_mode( PIN_LED1, GPIO_OUTPUT, GPIO_LOW );
+    gpio_pin_mode( PIN_LED2, GPIO_OUTPUT, GPIO_LOW );
+}
+
+/*
+ * program entry point
+*/
+void main( void )
+{
+    armen_start( );
+    setup( );
+
+    /* run 2nd thread */
+    thread_create( led2, (void*)0 );
+
+    /* run 1st thread */
+    led1( (void*)0 );
+}