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-rw-r--r--kernel/kernel.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/kernel/kernel.h b/kernel/kernel.h
index feab5b0..866ed5c 100644
--- a/kernel/kernel.h
+++ b/kernel/kernel.h
@@ -57,6 +57,26 @@
#warning "invalid PRESCALE value"
#endif
+#if (ADCPRESCALE == 1)
+#define ADC_FLAGS 0
+#elif (ADCPRESCALE == 2)
+#define ADC_FLAGS _BV(ADPS0)
+#elif (ADCPRESCALE == 4)
+#define ADC_FLAGS _BV(ADPS1)
+#elif (ADCPRESCALE == 8)
+#define ADC_FLAGS (_BV(ADPS1) | _BV(ADPS0))
+#elif (ADCPRESCALE == 16)
+#define ADC_FLAGS _BV(ADPS2)
+#elif (ADCPRESCALE == 32)
+#define ADC_FLAGS (_BV(ADPS2) | _BV(ADPS0))
+#elif (ADCPRESCALE == 64)
+#define ADC_FLAGS (_BV(ADPS2) | _BV(ADPS1))
+#elif (ADCPRESCALE == 128)
+#define ADC_FLAGS (_BV(ADPS2) | _BV(ADPS1) | _BV(ADPS0))
+#else
+#warning "invalid ADCPRESCALE value"
+#endif
+
#define SEC(T) ((uint32_t)((T) * (F_CPU / PRESCALE)))
#define MSEC(T) ((uint32_t)(T) * ((F_CPU / 1000) / PRESCALE))
#define USEC(T) ((uint32_t)(T) * ((F_CPU / 1000000) / PRESCALE))