Author: ks156
Date: 2009-10-20 08:36:56 +0200 (Tue, 20 Oct 2009)
New Revision: 5745
Modified:
firmware/tuxaudio/branches/auto_reset_rf/main.c
Log:
* Reset the RF each second when the RF connexion is lost.
Modified: firmware/tuxaudio/branches/auto_reset_rf/main.c
===================================================================
--- firmware/tuxaudio/branches/auto_reset_rf/main.c 2009-10-20 06:35:28 UTC
(rev 5744)
+++ firmware/tuxaudio/branches/auto_reset_rf/main.c 2009-10-20 06:36:56 UTC
(rev 5745)
@@ -91,6 +91,32 @@
* interrupt vector initialized will loop infinitely. */
}
+
+volatile uint8_t rf_counter = 0;
+void monitor_rf(void)
+{
+ if (rf_counter > 30)
+ {
+ rf_counter = 0;
+
+ /* Deconnection detected : Reset the RF ! */
+ if (!(RF_ONLINE_PIN & RF_ONLINE_MK))
+ {
+ uint16_t i = 0;
+
+ /* Active the reset */
+ PORTB &= ~_BV(PB7);
+
+ /* Keep the state for a while (1/8MHz * 4000) ~ 500us */
+ while (i < 4000)
+ i++;
+
+ /* Restart the RF */
+ PORTB |= _BV(PB7);
+ }
+ }
+}
+
void sleep(void)
{
uint8_t PRR_bak;
@@ -255,6 +281,7 @@
{
sei(); /* XXX can we remove this? */
+ monitor_rf();
/* Check for stack overflow. */
if (!check_stack())
while(1)
@@ -307,6 +334,7 @@
* ISR each 256*1024/8e6 = 33ms */
ISR(SIG_OVERFLOW2)
{
+ rf_counter++;
send_sensors_flag = true;
}
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