diff --git a/Processors/TFT_eSPI_STM32.c b/Processors/TFT_eSPI_STM32.c
index a9951dd..7a762c2 100644
--- a/Processors/TFT_eSPI_STM32.c
+++ b/Processors/TFT_eSPI_STM32.c
@@ -594,8 +594,10 @@ bool TFT_eSPI::initDMA(bool ctrl_cs)
 ** Function name:           initDMA
 ** Description:             Initialise the DMA engine - returns true if init OK
 ***************************************************************************************/
-bool TFT_eSPI::initDMA(void)
+bool TFT_eSPI::initDMA(bool ctrl_cs)
 {
+  ctrl_cs = ctrl_cs; // Not used for STM32, so stop compiler warning
+
   __HAL_RCC_DMA1_CLK_ENABLE();                           // Enable DMA1 clock
 
   dmaHal.Init.Mode =  DMA_NORMAL; //DMA_CIRCULAR;   //   // Normal = send buffer once
diff --git a/User_Setups/Setup23_TTGO_TM.h b/User_Setups/Setup23_TTGO_TM.h
index 58468d5..b8e3a55 100644
--- a/User_Setups/Setup23_TTGO_TM.h
+++ b/User_Setups/Setup23_TTGO_TM.h
@@ -20,6 +20,10 @@
 //#define TFT_RGB_ORDER TFT_RGB  // Colour order Red-Green-Blue
 #define TFT_RGB_ORDER TFT_BGR // Colour order Blue-Green-Red
 
+// Black and white swap option
+//#define TFT_INVERSION_ON
+#define TFT_INVERSION_OFF
+
 #define LOAD_GLCD
 #define LOAD_FONT2
 #define LOAD_FONT4