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-rw-r--r--digital/dev2/src/usb_gpio/avrconfig.h1
-rw-r--r--digital/dev2/src/usb_serial_isp/avrconfig.h1
-rw-r--r--digital/dev2/src/usb_twi/avrconfig.h1
3 files changed, 3 insertions, 0 deletions
diff --git a/digital/dev2/src/usb_gpio/avrconfig.h b/digital/dev2/src/usb_gpio/avrconfig.h
index 0a90876d..eb780e77 100644
--- a/digital/dev2/src/usb_gpio/avrconfig.h
+++ b/digital/dev2/src/usb_gpio/avrconfig.h
@@ -28,6 +28,7 @@
/* utils */
/** AVR Frequency : 1000000, 1843200, 2000000, 3686400, 4000000, 7372800,
* 8000000, 11059200, 14745600, 16000000, 18432000, 20000000. */
+#error "please check frequency"
#define AC_FREQ 8000000
/* usb */
diff --git a/digital/dev2/src/usb_serial_isp/avrconfig.h b/digital/dev2/src/usb_serial_isp/avrconfig.h
index 1dfd63d2..60ddf99b 100644
--- a/digital/dev2/src/usb_serial_isp/avrconfig.h
+++ b/digital/dev2/src/usb_serial_isp/avrconfig.h
@@ -28,6 +28,7 @@
/* utils */
/** AVR Frequency : 1000000, 1843200, 2000000, 3686400, 4000000, 7372800,
* 8000000, 11059200, 14745600, 16000000, 18432000, 20000000. */
+#error "please check frequency"
#define AC_FREQ 8000000
/* uart - UART module. */
diff --git a/digital/dev2/src/usb_twi/avrconfig.h b/digital/dev2/src/usb_twi/avrconfig.h
index 5c2d92ce..83482f75 100644
--- a/digital/dev2/src/usb_twi/avrconfig.h
+++ b/digital/dev2/src/usb_twi/avrconfig.h
@@ -28,6 +28,7 @@
/* utils */
/** AVR Frequency : 1000000, 1843200, 2000000, 3686400, 4000000, 7372800,
* 8000000, 11059200, 14745600, 16000000, 18432000, 20000000. */
+#error "please check frequency"
#define AC_FREQ 8000000
/* twi - TWI module. */