Erik -
/
MODSERIAL-RTOS
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Revision 22:c11ea36f17f9, committed 2012-04-19
- Comitter:
- AjK
- Date:
- Thu Apr 19 20:47:46 2012 +0000
- Parent:
- 21:af2af4c61c2f
- Child:
- 23:5c45c21f36b7
- Commit message:
- 1.22 Buffer pointer fix by Anthony Wieser
Changed in this revision
--- a/ChangeLog.c Tue May 10 08:07:27 2011 +0000
+++ b/ChangeLog.c Thu Apr 19 20:47:46 2012 +0000
@@ -1,5 +1,13 @@
/* $Id:$
+1.22 19th April 2012
+
+ * http://mbed.org/forum/bugs-suggestions/topic/2936/
+ * Bug fix, protect important buffer pointers from IRQ corruption.
+ Credits:
+ Anthony Wieser http://mbed.org/users/WieserSoftwareLtd/ for the fix.
+ BlazeX http://mbed.org/users/BlazeX/ for the alert that a fix was needed!
+
1.21 10 May 2011
* http://mbed.org/forum/mbed/topic/2264
--- a/GETC.cpp Tue May 10 08:07:27 2011 +0000
+++ b/GETC.cpp Thu Apr 19 20:47:46 2012 +0000
@@ -56,7 +56,9 @@
_IER = ier;
}
+ __disable_irq();
buffer_count[RxIrq]--;
+ __enable_irq();
return c;
}
--- a/PUTC.cpp Tue May 10 08:07:27 2011 +0000
+++ b/PUTC.cpp Thu Apr 19 20:47:46 2012 +0000
@@ -65,7 +65,9 @@
}
_IER &= ~2;
buffer[TxIrq][buffer_in[TxIrq]] = c;
+ __disable_irq();
buffer_count[TxIrq]++;
+ __enable_irq();
buffer_in[TxIrq]++;
if (buffer_in[TxIrq] >= buffer_size[TxIrq]) {
buffer_in[TxIrq] = 0;