1 files changed, 4 insertions, 1 deletions
diff --git a/ecos/packages/hal/cortexm/vybrid/var/current/src/vybrid_misc.c b/ecos/packages/hal/cortexm/vybrid/var/current/src/vybrid_misc.c
index 751b8c0..aa0e4fa 100644
--- a/ecos/packages/hal/cortexm/vybrid/var/current/src/vybrid_misc.c
+++ b/ecos/packages/hal/cortexm/vybrid/var/current/src/vybrid_misc.c
@@ -231,7 +231,10 @@ hal_clock_disable(cyg_uint32 ccgr)
 int
 hal_get_core_num(void)
 {
-    return CYGHWR_HAL_VYBRID_MSCM_CPxNUM & CYGHWR_HAL_VYBRID_MSCM_CPxNUM_CPN_M;
+    cyg_uint32 reg;
+    HAL_READ_UINT32(CYGHWR_HAL_VYBRID_MSCM_CPxNUM, reg);
+
+    return (reg & CYGHWR_HAL_VYBRID_MSCM_CPxNUM_CPN_M);
 }
 
 //==========================================================================