Initial Zephyr server

Author: kenchris

zephyr/Makefile

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+MDEF_FILE = prj.mdef
+KERNEL_TYPE = micro
+BOARD ?= qemu_x86
+CONF_FILE = prj.conf
+
+include ${ZEPHYR_BASE}/Makefile.inc

zephyr/README.txt

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+Source the zephyr-project/zephyr-env.sh to get up the environment
+
+--------------------------------------------------------------------------------
+
+Building and Running Project:
+
+This microkernel project outputs to the console.  It can be built and executed
+on QEMU as follows:
+
+    make qemu
+
+--------------------------------------------------------------------------------
+
+Troubleshooting:
+
+Problems caused by out-dated project information can be addressed by
+issuing one of the following commands then rebuilding the project:
+
+    make clean          # discard results of previous builds
+                        # but keep existing configuration info
+or
+    make pristine       # discard results of previous builds
+                        # and restore pre-defined configuration info
+
+--------------------------------------------------------------------------------

zephyr/prj.conf

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+CONFIG_STDOUT_CONSOLE=y
+CONFIG_PRINTK=y
+CONFIG_PWM=y
+CONFIG_NANO_TIMERS=y
+CONFIG_NANO_TIMEOUTS=y
+

zephyr/prj.mdef

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+% Application       : Hello demo
+
+% TASK NAME  PRIO ENTRY STACK GROUPS
+% ==================================
+  TASK TASKA    7 main  2048 [EXE]

zephyr/src/Makefile

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+obj-y = main.o

zephyr/src/main.c

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+#include <zephyr.h>
+#include <device.h>
+#include <pwm.h>
+#include <sys_clock.h>
+
+#if defined(CONFIG_STDOUT_CONSOLE)
+#include <stdio.h>
+#define PRINT           printf
+#else
+#include <misc/printk.h>
+#define PRINT           printk
+#endif
+
+#define IO3_RED   "PWM_0"
+#define IO5_GREEN "PWM_1"
+#define IO6_BLUE  "PWM_2"
+
+#define SLEEPTICKS  SECONDS(1)
+
+void main(void)
+{
+  struct nano_timer timer;
+  void *timer_data[1];
+
+  struct device *red, *green, *blue;
+
+  nano_timer_init(&timer, timer_data);
+
+  PRINT("Zephyr WebBluetooth demo\n");
+
+  red = device_get_binding(IO3_RED);
+  green = device_get_binding(IO5_GREEN);
+  blue = device_get_binding(IO6_BLUE);
+
+  if (!red || !green || !blue) {
+    PRINT("Cannot find LED connected to pin 3 (red), 5 (green) and 6 (blue)!\n");
+  }
+
+  while (1) {
+    pwm_pin_set_values(red, 1024, SLEEPTICKS, 0);
+
+    nano_timer_start(&timer, SLEEPTICKS);
+    nano_timer_test(&timer, TICKS_UNLIMITED);
+  }
+}