Fix timer selection for some avr cpus.

[bertos.git] / bertos / cpu / avr / drv / timer_avr.c

diff --git a/bertos/cpu/avr/drv/timer_avr.c b/bertos/cpu/avr/drv/timer_avr.c
index 54b4f0b728f91d9e08962fb84dfc8e1f585c826d..70876c010b2a664c012618774e408a4120d52286 100644 (file)
--- a/bertos/cpu/avr/drv/timer_avr.c
+++ b/bertos/cpu/avr/drv/timer_avr.c
@@ -82,6 +82,7 @@
        #define REG_TIFR0 TIFR
        #define REG_TIFR1 TIFR
        #define REG_TIFR2 TIFR
+       #define REG_TIFR3 TIFR
 
        #define REG_TIMSK0 TIMSK
        #define REG_TIMSK1 TIMSK
@@ -215,6 +216,10 @@
 
 #elif (CONFIG_TIMER == TIMER_ON_OVERFLOW3)
 
+       #if CPU_AVR_ATMEGA168 || CPU_AVR_ATMEGA328P || CPU_AVR_ATMEGA32
+               #error For select target there is not TIMER_ON_OVERFLOW3, please select an other one.
+       #endif
+
        void timer_hw_init(void)
        {
                cpu_flags_t flags;