Fix of the OTG FS HOST for nucleo-h743zi

arch/arm/src/stm32h7/stm32_otghost.c

@@ -5482,7 +5482,7 @@ FAR struct usbhost_connection_s *stm32_otgfshost_initialize(int controller)
   /* Enable VDD33USB supply level detector */
 
   regval |= STM32_PWR_CR3_USB33DEN;
-  stm32_putreg(regval, STM32_PWR_CR3);
+  stm32_putreg( STM32_PWR_CR3, regval );
 
   while ((stm32_getreg(STM32_PWR_CR3) & STM32_PWR_CR3_USB33RDY) == 0)
     {

boards/arm/stm32h7/nucleo-h743zi/src/stm32_bringup.c

@@ -44,6 +44,20 @@
 #include <syslog.h>
 #include <errno.h>
 
+
+#define HAVE_USBHOST 1
+#define CONFIG_USBMONITOR 1
+
+#ifdef CONFIG_USBMONITOR
+#include <nuttx/usb/usbmonitor.h>
+#endif
+
+#ifdef CONFIG_STM32_OTGFS
+#include "stm32_usbhost.h"
+#include "stm32_usb.h"
+#endif
+
+
 #include "nucleo-h743zi.h"
 
 #ifdef CONFIG_BUTTONS
@@ -222,6 +236,35 @@ int stm32_bringup(void)
     }
 #endif /* CONFIG_BUTTONS */
 
+
+#ifdef HAVE_USBHOST
+
+  /* Initialize USB host operation.  stm32_usbhost_initialize() starts a thread
+   * will monitor for USB connection and disconnection events.
+   */
+
+  ret = stm32_usbhost_initialize();
+  if (ret != OK)
+    {
+      syslog(LOG_ERR,
+             "ERROR: Failed to initialize USB host: %d\n",
+             ret);
+    }
+#endif
+
+#ifdef HAVE_USBMONITOR
+  /* Start the USB Monitor */
+
+  ret = usbmonitor_start();
+  if (ret != OK)
+    {
+      syslog(LOG_ERR,
+             "ERROR: Failed to start USB monitor: %d\n",
+             ret);
+    }
+#endif
+
+
 #ifdef CONFIG_ADC
   /* Initialize ADC and register the ADC driver. */
 

boards/arm/stm32h7/nucleo-h743zi/src/stm32_usb.c

@@ -273,9 +273,9 @@ void stm32_usbhost_vbusdrive(int iface, bool enable)
 {
   DEBUGASSERT(iface == 0);
 
-  /* Set the Power Switch by driving the active low enable pin */
+  /* Set the Power Switch by driving the active high enable pin */
 
-  stm32_gpiowrite(GPIO_OTGFS_PWRON, !enable);
+  stm32_gpiowrite(GPIO_OTGFS_PWRON, enable);
 }
 #endif