Tune up example chapter11_07

ckormanyos · Dec 14, 2024 · df5a066 · df5a066
1 parent 1dacfc7
commit df5a066
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Showing 3 changed files with 9 additions and 8 deletions.
diff --git a/examples/chapter11_07/src/app/led/app_led.cpp b/examples/chapter11_07/src/app/led/app_led.cpp
@@ -15,6 +15,7 @@
 namespace
 {
   using app_led_timer_type = util::timer<std::uint32_t>;
+  using app_led_tick_type  = typename app_led_timer_type::tick_type;
 
   app_led_timer_type app_led_timer_background;
   app_led_timer_type app_led_timer_toggle_led0;
@@ -34,7 +35,7 @@ void app_led_task_background(void*)
       mcal::cpu::nop();
     }
 
-    app_led_timer_background.start_interval(app_led_timer_type::milliseconds(50U));
+    app_led_timer_background.start_interval(app_led_timer_type::milliseconds(app_led_tick_type { UINT8_C(50) }));
 
     mcal::led::led1().toggle();
   }
@@ -43,7 +44,7 @@ void app_led_task_background(void*)
 extern "C"
 void app_led_task_toggle_led0(void*)
 {
-  // This application task is intended to yield every 70ms. It has higher
+  // This application task is intended to yield every 125ms. It has higher
   // priority than the background task. This task will, in fact, preemptively
   // interrupt the lower-priority background task.
 
@@ -53,7 +54,7 @@ void app_led_task_toggle_led0(void*)
 
     if(app_led_timer_toggle_led0.timeout())
     {
-      app_led_timer_toggle_led0.start_interval(app_led_timer_type::seconds(1U));
+      app_led_timer_toggle_led0.start_interval(app_led_timer_type::seconds(app_led_tick_type { UINT8_C(1) }));
 
       mcal::led::led0().toggle();
     }

diff --git a/examples/chapter11_07/src/sys/start/sys_start.cpp b/examples/chapter11_07/src/sys/start/sys_start.cpp
@@ -14,7 +14,7 @@ namespace
   // Setup the task static resources including the
   // task control block structures and task stacks.
   OS_TASK_STATIC_RESOURCES(app_led_task_background,  512U);
-  OS_TASK_STATIC_RESOURCES(app_led_task_toggle_led0, 128U);
+  OS_TASK_STATIC_RESOURCES(app_led_task_toggle_led0,  32U);
 }
 
 #if defined(__AVR__)

diff --git a/examples/chapter11_07/target/micros/avr/make/avr.ld b/examples/chapter11_07/target/micros/avr/make/avr.ld
@@ -17,17 +17,17 @@ _rom_begin = 0x00000000;
 _rom_end   = 0x00007FFC;
 
 /* The beginning and end (i.e., top) of the stack */
-/* Set up a stack with a size of (1/4)K */
-_stack_begin = 0x00800800;
+/* Set up a the stack */
+_stack_begin = 0x00800880;
 _stack_end   = 0x00800900 - 2;
 
 /* The initial stack pointer (top of stack) is at the top of the 2K RAM */
 __initial_stack_pointer = 0x00800900 - 2;
 
 MEMORY
 {
-  ROM(rx)   : ORIGIN = 0, LENGTH = 32K - 4
-  RAM(rw!x) : ORIGIN = 0x00800100, LENGTH = 0x00000800 - 0x00000100
+  ROM(rx)   : ORIGIN = 0, LENGTH = 32K
+  RAM(rw!x) : ORIGIN = 0x00800100, LENGTH = 0x00000800 - 0x00000080
 }
 
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