2 files changed, 4 insertions, 1 deletions
diff --git a/src/host/usbh.c b/src/host/usbh.c
index a94c22c4c..8c488aaa2 100644
--- a/src/host/usbh.c
+++ b/src/host/usbh.c
@@ -1421,6 +1421,9 @@ static void process_enumeration(tuh_xfer_t* xfer) {
       break;
 
     case ENUM_GET_DEVICE_DESC: {
+      // Allow 2ms for address recovery time, Ref USB Spec 9.2.6.3
+      osal_task_delay(2);
+
       uint8_t const new_addr = (uint8_t) tu_le16toh(xfer->setup->wValue);
 
       usbh_device_t* new_dev = get_device(new_addr);
diff --git a/src/host/usbh.h b/src/host/usbh.h
index 359684169..d0a5732e5 100644
--- a/src/host/usbh.h
+++ b/src/host/usbh.h
@@ -81,7 +81,7 @@ enum {
 };
 
 typedef struct {
-  uint8_t max_nak; // max NAK per endpoint per frame
+  uint8_t max_nak; // max NAK per endpoint per frame to save CPU/SPI bus usage
   uint8_t cpuctl; // R16: CPU Control Register
   uint8_t pinctl; // R17: Pin Control Register. FDUPSPI bit is ignored
 } tuh_configure_max3421_t;