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authorDaniel Friesel <derf@finalrewind.org>2018-10-15 12:24:16 +0200
committerDaniel Friesel <derf@finalrewind.org>2018-10-15 12:24:16 +0200
commit60cb80bde54265e1fdf3cc8d21e74292d5f769db (patch)
tree9190a8e92e4f78167dd774043e9d7fbc018133ed /src/app
parent2727c03adcaaf1b8490213eead938b676a6fb6c8 (diff)
add timertest app, improve msp430 timer driver
Diffstat (limited to 'src/app')
-rw-r--r--src/app/timertest/Makefile.inc3
-rw-r--r--src/app/timertest/main.cc43
2 files changed, 46 insertions, 0 deletions
diff --git a/src/app/timertest/Makefile.inc b/src/app/timertest/Makefile.inc
new file mode 100644
index 0000000..9d375f1
--- /dev/null
+++ b/src/app/timertest/Makefile.inc
@@ -0,0 +1,3 @@
+loop ?= 1
+timer_s ?= 1
+arch_drivers += ,timer
diff --git a/src/app/timertest/main.cc b/src/app/timertest/main.cc
new file mode 100644
index 0000000..23f0b60
--- /dev/null
+++ b/src/app/timertest/main.cc
@@ -0,0 +1,43 @@
+#include "arch.h"
+#include "driver/gpio.h"
+#include "driver/stdout.h"
+#include "driver/timer.h"
+#include "driver/uptime.h"
+
+#ifndef F_TIMER
+#define F_TIMER 100000
+#endif
+
+volatile unsigned long int timer_val = 0;
+
+void loop(void)
+{
+ gpio.led_toggle(1);
+ kout << "Actual frequency: approx. " << timer_val << " Hz" << endl;
+ timer_val = 0;
+}
+
+int main(void)
+{
+ arch.setup();
+ gpio.setup();
+ kout.setup();
+#if F_TIMER > 999
+ timer.setup_khz(F_TIMER / 1000);
+#else
+ timer.setup_hz(F_TIMER);
+#endif
+ timer.start(1);
+
+ gpio.led_on(0);
+ kout << "Timer running at " << dec << F_TIMER << " Hz" << endl;
+
+ arch.idle_loop();
+
+ return 0;
+}
+
+ON_TIMER_INTERRUPT_head
+ gpio.led_toggle(0);
+ timer_val++;
+ON_TIMER_INTERRUPT_tail