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-rw-r--r--software/hhd70dongle/hhd70dongle.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/software/hhd70dongle/hhd70dongle.c b/software/hhd70dongle/hhd70dongle.c
index 0f216d2..fd92527 100644
--- a/software/hhd70dongle/hhd70dongle.c
+++ b/software/hhd70dongle/hhd70dongle.c
@@ -39,8 +39,7 @@
#include "c1101lib.h"
#include "usb_rawhid.h"
-
-#define CPU_PRESCALE(n) (CLKPR = 0x80, CLKPR = (n))
+#define CPU_PRESCALE(n) do { CLKPR = 0x80; CLKPR = (n); } while(0)
uint8_t read_buffer[64]; // buffer for reading usb signals
uint8_t write_buffer[64]; // buffer for writing usb signals