workaround for errata BCL12

1 files changed, 5 insertions, 1 deletions

diff --git a/main.c b/main.c
index d2cf023..1948de8 100644
--- a/main.c
+++ b/main.c
@@ -491,8 +491,12 @@ static void InitPorts(void)
 
 static void GlobalInit(void)
 {
-  DCOCTL = CALDCO_12MHZ;
+  /* freq selection procedure compliant with errata BCL12
+   * (potentially switching from RSEL < 12 to > 13)
+   */
+  DCOCTL = 0;
   BCSCTL1 = CALBC1_12MHZ;
+  DCOCTL = CALDCO_12MHZ;
 
   TACTL = TASSEL_2 + ID_3 + TACLR + TAIE + MC_1; // SMCLK + div by 8 + reset +
                                                  // enable interrupt + UP