diff --git a/demos/ARM7-AT91SAM7S-GCC/mcuconf.h b/demos/ARM7-AT91SAM7S-GCC/mcuconf.h
index be2bcc852..519405ff1 100644
--- a/demos/ARM7-AT91SAM7S-GCC/mcuconf.h
+++ b/demos/ARM7-AT91SAM7S-GCC/mcuconf.h
@@ -56,3 +56,8 @@
 /*
  * SPI driver system settings.
  */
+#define USE_AT91SAM7_SPI            FALSE
+#define AT91SAM7_SPI_USE_SPI0       TRUE
+#define AT91SAM7_SPI_USE_SPI1       FALSE
+#define AT91SAM7_SPI0_PRIORITY      (AT91C_AIC_PRIOR_HIGHEST - 1)
+#define AT91SAM7_SPI1_PRIORITY      (AT91C_AIC_PRIOR_HIGHEST - 1)
diff --git a/demos/ARM7-AT91SAM7X-GCC/mcuconf.h b/demos/ARM7-AT91SAM7X-GCC/mcuconf.h
index be2bcc852..519405ff1 100644
--- a/demos/ARM7-AT91SAM7X-GCC/mcuconf.h
+++ b/demos/ARM7-AT91SAM7X-GCC/mcuconf.h
@@ -56,3 +56,8 @@
 /*
  * SPI driver system settings.
  */
+#define USE_AT91SAM7_SPI            FALSE
+#define AT91SAM7_SPI_USE_SPI0       TRUE
+#define AT91SAM7_SPI_USE_SPI1       FALSE
+#define AT91SAM7_SPI0_PRIORITY      (AT91C_AIC_PRIOR_HIGHEST - 1)
+#define AT91SAM7_SPI1_PRIORITY      (AT91C_AIC_PRIOR_HIGHEST - 1)
diff --git a/demos/ARM7-AT91SAM7X-LWIP-GCC/mcuconf.h b/demos/ARM7-AT91SAM7X-LWIP-GCC/mcuconf.h
index be2bcc852..519405ff1 100644
--- a/demos/ARM7-AT91SAM7X-LWIP-GCC/mcuconf.h
+++ b/demos/ARM7-AT91SAM7X-LWIP-GCC/mcuconf.h
@@ -56,3 +56,8 @@
 /*
  * SPI driver system settings.
  */
+#define USE_AT91SAM7_SPI            FALSE
+#define AT91SAM7_SPI_USE_SPI0       TRUE
+#define AT91SAM7_SPI_USE_SPI1       FALSE
+#define AT91SAM7_SPI0_PRIORITY      (AT91C_AIC_PRIOR_HIGHEST - 1)
+#define AT91SAM7_SPI1_PRIORITY      (AT91C_AIC_PRIOR_HIGHEST - 1)
diff --git a/demos/ARM7-AT91SAM7X-UIP-GCC/mcuconf.h b/demos/ARM7-AT91SAM7X-UIP-GCC/mcuconf.h
index be2bcc852..519405ff1 100644
--- a/demos/ARM7-AT91SAM7X-UIP-GCC/mcuconf.h
+++ b/demos/ARM7-AT91SAM7X-UIP-GCC/mcuconf.h
@@ -56,3 +56,8 @@
 /*
  * SPI driver system settings.
  */
+#define USE_AT91SAM7_SPI            FALSE
+#define AT91SAM7_SPI_USE_SPI0       TRUE
+#define AT91SAM7_SPI_USE_SPI1       FALSE
+#define AT91SAM7_SPI0_PRIORITY      (AT91C_AIC_PRIOR_HIGHEST - 1)
+#define AT91SAM7_SPI1_PRIORITY      (AT91C_AIC_PRIOR_HIGHEST - 1)