diff --git a/halconf.h b/halconf.h
index af6c283..0b48487 100644
--- a/halconf.h
+++ b/halconf.h
@@ -41,8 +41,12 @@
  * @brief   Enables the ADC subsystem.
  */
 #if !defined(HAL_USE_ADC) || defined(__DOXYGEN__)
+#if defined(TINYSA_F303) 
+#define HAL_USE_ADC                 TRUE
+#else
 #define HAL_USE_ADC                 FALSE
 #endif
+#endif
 
 /**
  * @brief   Enables the CAN subsystem.
@@ -132,7 +136,7 @@
  * @brief   Enables the SERIAL subsystem.
  */
 #if !defined(HAL_USE_SERIAL) || defined(__DOXYGEN__)
-#define HAL_USE_SERIAL              TRUE
+#define HAL_USE_SERIAL              FALSE
 #endif
 
 /**
@@ -187,7 +191,7 @@
  * @note    Disabling this option saves both code and data space.
  */
 #if !defined(ADC_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
-#define ADC_USE_MUTUAL_EXCLUSION    TRUE
+#define ADC_USE_MUTUAL_EXCLUSION    FALSE
 #endif
 
 /*===========================================================================*/
@@ -209,7 +213,7 @@
  * @brief   Enables the mutual exclusion APIs on the I2C bus.
  */
 #if !defined(I2C_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
-#define I2C_USE_MUTUAL_EXCLUSION    TRUE
+#define I2C_USE_MUTUAL_EXCLUSION    FALSE
 #endif
 
 /*===========================================================================*/
@@ -227,7 +231,7 @@
  * @brief   Enables an event sources for incoming packets.
  */
 #if !defined(MAC_USE_EVENTS) || defined(__DOXYGEN__)
-#define MAC_USE_EVENTS              TRUE
+#define MAC_USE_EVENTS              FALSE
 #endif
 
 /*===========================================================================*/
@@ -333,7 +337,7 @@
  * @note    Disabling this option saves both code and data space.
  */
 #if !defined(SPI_USE_WAIT) || defined(__DOXYGEN__)
-#define SPI_USE_WAIT                TRUE
+#define SPI_USE_WAIT                FALSE
 #endif
 
 /**
@@ -341,7 +345,7 @@
  * @note    Disabling this option saves both code and data space.
  */
 #if !defined(SPI_USE_MUTUAL_EXCLUSION) || defined(__DOXYGEN__)
-#define SPI_USE_MUTUAL_EXCLUSION    TRUE
+#define SPI_USE_MUTUAL_EXCLUSION    FALSE
 #endif
 
 /**
diff --git a/ili9341.c b/ili9341.c
index 30af869..44bd04b 100644
--- a/ili9341.c
+++ b/ili9341.c
@@ -21,6 +21,9 @@
 #include "hal.h"
 #include "nanovna.h"
 
+// Allow enable DMA for read display data (some problem vs use in ST7796 in fast mode)
+#define __USE_DISPLAY_DMA_RX__
+
 uint16_t spi_buffer[SPI_BUFFER_SIZE];
 // Default foreground & background colors
 uint16_t foreground_color = 0;
@@ -195,6 +198,7 @@ static void spi_lld_serve_tx_interrupt(SPIDriver *spip, uint32_t flags)
   (void)flags;
 }
 
+#ifdef __USE_DISPLAY_DMA_RX__
 static const stm32_dma_stream_t  *dmarx = STM32_DMA_STREAM(STM32_SPI_SPI1_RX_DMA_STREAM);
 static uint32_t rxdmamode = STM32_DMA_CR_CHSEL(SPI1_RX_DMA_CHANNEL)
                         | STM32_DMA_CR_PL(STM32_SPI_SPI1_DMA_PRIORITY)
@@ -208,6 +212,7 @@ static void spi_lld_serve_rx_interrupt(SPIDriver *spip, uint32_t flags)
   (void)spip;
   (void)flags;
 }
+#endif
 
 static void dmaStreamFlush(uint32_t len)
 {
@@ -239,12 +244,14 @@ static void spi_init(void)
   // Tx DMA init
   dmaStreamAllocate(dmatx, STM32_SPI_SPI1_IRQ_PRIORITY, (stm32_dmaisr_t)spi_lld_serve_tx_interrupt, NULL);
   dmaStreamSetPeripheral(dmatx, &SPI1->DR);
+  SPI1->CR2|= SPI_CR2_TXDMAEN;    // Tx DMA enable
+#ifdef __USE_DISPLAY_DMA_RX__
   // Rx DMA init
   dmaStreamAllocate(dmarx, STM32_SPI_SPI1_IRQ_PRIORITY, (stm32_dmaisr_t)spi_lld_serve_rx_interrupt, NULL);
   dmaStreamSetPeripheral(dmarx, &SPI1->DR);
   // Enable DMA on SPI
-  SPI1->CR2|= SPI_CR2_TXDMAEN    // Tx DMA enable
-           |  SPI_CR2_RXDMAEN;   // Rx DMA enable
+  SPI1->CR2|= SPI_CR2_RXDMAEN;   // Rx DMA enable
+#endif
 #endif
   SPI1->CR1|= SPI_CR1_SPE;       //SPI enable
 }
@@ -369,7 +376,7 @@ void ili9341_bulk_8bit(int x, int y, int w, int h, uint16_t *palette)
 }
 
 #ifndef __USE_DISPLAY_DMA__
-void ili9341_fill(int x, int y, int w, int h, int color)
+void ili9341_fill(int x, int y, int w, int h, uint16_t color)
 {
 //uint8_t xx[4] = { x >> 8, x, (x+w-1) >> 8, (x+w-1) };
 //uint8_t yy[4] = { y >> 8, y, (y+h-1) >> 8, (y+h-1) };
@@ -404,13 +411,11 @@ void ili9341_bulk(int x, int y, int w, int h)
   }
 }
 #else
-
 //
 // Use DMA for send data
 //
-
 // Fill region by some color
-void ili9341_fill(int x, int y, int w, int h, int color)
+void ili9341_fill(int x, int y, int w, int h, uint16_t color)
 {
   uint32_t xx = __REV16(x | ((x + w - 1) << 16));
   uint32_t yy = __REV16(y | ((y + h - 1) << 16));
@@ -438,7 +443,9 @@ void ili9341_bulk(int x, int y, int w, int h)
                               STM32_DMA_CR_MSIZE_HWORD | STM32_DMA_CR_MINC);
   dmaStreamFlush(w * h);
 }
-#if 0  // If read DMA hangs
+#endif
+
+#ifndef __USE_DISPLAY_DMA_RX__
 static uint8_t ssp_sendrecvdata(void)
 {
   // Start RX clock (by sending data)
@@ -531,7 +538,6 @@ void ili9341_read_memory(int x, int y, int w, int h, int len, uint16_t *out)
   }
 }
 #endif
-#endif
 
 void ili9341_clear_screen(void) 
 {
diff --git a/mcuconf.h b/mcuconf.h
index 241b42d..ab7b855 100644
--- a/mcuconf.h
+++ b/mcuconf.h
@@ -14,6 +14,9 @@
     limitations under the License.
 */
 
+#ifdef TINYSA_F303
+#include "mcuconf_F303.h"
+#else
 #ifndef MCUCONF_H
 #define MCUCONF_H
 
@@ -226,3 +229,4 @@
 #define STM32_WDG_USE_IWDG                  FALSE
 
 #endif /* MCUCONF_H */
+#endif
diff --git a/nanovna.h b/nanovna.h
index bbe79c2..5a7da8a 100644
--- a/nanovna.h
+++ b/nanovna.h
@@ -18,6 +18,9 @@
  */
 #include "ch.h"
 
+#ifdef TINYSA_F303
+#include "adc_F303.h"
+#endif
 // Need enable HAL_USE_SPI in halconf.h
 #define __USE_DISPLAY_DMA__
 
@@ -533,7 +536,7 @@ extern uint16_t spi_buffer[SPI_BUFFER_SIZE];
 void ili9341_init(void);
 void ili9341_test(int mode);
 void ili9341_bulk(int x, int y, int w, int h);
-void ili9341_fill(int x, int y, int w, int h, int color);
+void ili9341_fill(int x, int y, int w, int h, uint16_t color);
 #if 0
 void ili9341_set_foreground(uint16_t fg);
 void ili9341_set_background(uint16_t fg);