diff --git a/os/hal/ports/SILABS/EFR32FG23/hal_lld.c b/os/hal/ports/SILABS/EFR32FG23/hal_lld.c
index f5fd1bb38d..565ac665c1 100644
--- a/os/hal/ports/SILABS/EFR32FG23/hal_lld.c
+++ b/os/hal/ports/SILABS/EFR32FG23/hal_lld.c
@@ -32,12 +32,6 @@
 /* Driver exported variables.                                                */
 /*===========================================================================*/
 
-/**
- * @brief   CMSIS system core clock variable.
- * @note    It is declared in system_efr32fg23.h.
- */
-uint32_t SystemCoreClock = EFR32_HCLK;
-
 /*===========================================================================*/
 /* Driver local variables and types.                                         */
 /*===========================================================================*/
diff --git a/testhal/SILABS/EFR32FG23x0xx/TEMPLATE/cfg/mcuconf.h b/testhal/SILABS/EFR32FG23x0xx/TEMPLATE/cfg/mcuconf.h
index e91aca23e1..3116692344 100644
--- a/testhal/SILABS/EFR32FG23x0xx/TEMPLATE/cfg/mcuconf.h
+++ b/testhal/SILABS/EFR32FG23x0xx/TEMPLATE/cfg/mcuconf.h
@@ -15,7 +15,7 @@
 */
 
 /*
- * EFR32FG14P drivers configuration.
+ * EFR32FG23 drivers configuration.
  * The following settings override the default settings present in
  * the various device driver implementation headers.
  * Note that the settings for each driver only have effect if the whole
diff --git a/testhal/SILABS/EFR32FG23x0xx/TEMPLATE/main.c b/testhal/SILABS/EFR32FG23x0xx/TEMPLATE/main.c
index e40ef27b00..a6e72fbe23 100644
--- a/testhal/SILABS/EFR32FG23x0xx/TEMPLATE/main.c
+++ b/testhal/SILABS/EFR32FG23x0xx/TEMPLATE/main.c
@@ -194,11 +194,15 @@ int main(void) {
   stStartAlarmN(1, stGetCounter() + chTimeMS2I(3000));
   led_on();
 
+  //RAIL_TxStreamStart(railHandle, RAIL_STREAM_PN9_STREAM);
+  //RAIL_TxStreamStart(railHandle, RAIL_STREAM_CARRIER_WAVE);
+
+  systime_t prev = chVTGetSystemTime();
+
   /*
    * Normal main() thread activity, in this demo it does nothing except
    * sleeping in a loop and check the button state.
    */
-  systime_t prev = chVTGetSystemTime();
   while (true) {
     send_datagram();
     prev = chThdSleepUntilWindowed(prev, chTimeAddX(prev, TIME_MS2I(3000)));