diff --git a/src/clock.c b/src/clock.c
index b032e6f..9c4cf39 100644
--- a/src/clock.c
+++ b/src/clock.c
@@ -48,11 +48,9 @@ void clock_init() {
  */
   enableMainOsc();
   setClkSrc(CLKSRC_MAINOSC);
-// XXX  setPLL0MultPrediv(429, 19);
-// XXX  setPLL0MultPrediv(23, 2);
-  setPLL0MultPrediv(12, 1);
+  setPLL0MultPrediv(22, 1);
   enablePLL0();
-  setCCLKDiv(3);
+  setCCLKDiv(6);
   connectPLL0();
 }
 
diff --git a/src/config.h b/src/config.h
index b9593c7..91ae55d 100644
--- a/src/config.h
+++ b/src/config.h
@@ -35,7 +35,7 @@
 
 #define CONFIG_UART_NUM	          3
 // #define CONFIG_CPU_FREQUENCY      90315789
-#define CONFIG_CPU_FREQUENCY      96000000
+#define CONFIG_CPU_FREQUENCY      88000000
 //#define CONFIG_CPU_FREQUENCY      46000000
 #define CONFIG_UART_PCLKDIV       1
 #define CONFIG_UART_TX_BUF_SHIFT  8