diff --git a/README.rst b/README.rst
index e5806bafc0..a3a3147c45 100644
--- a/README.rst
+++ b/README.rst
@@ -184,7 +184,7 @@ Supported CPUs
 |              | MAX32 650, 666, 690,        | ✅     |      | ✅        | musb                   | 1-dir ep           |
 |              | MAX78002                    |        |      |           |                        |                    |
 +--------------+-----------------------------+--------+------+-----------+------------------------+--------------------+
-| Artery AT32  | F403a_407, F413             | ✅     |      |           | stm32_fsdev            | 512 USB RAM        |
+| Artery AT32  | F403a_407, F413             | ✅     |      |           | stm32_fsdev            | 768 USB RAM        |
 |              +-----------------------------+--------+------+-----------+------------------------+--------------------+
 |              | F415, F435_437, F423,       | ✅     | ✅   |           | dwc2                   |                    |
 |              | F425, F45x                  |        |      |           |                        |                    |
diff --git a/src/common/tusb_mcu.h b/src/common/tusb_mcu.h
index 1f2afb03a0..4e61041bae 100644
--- a/src/common/tusb_mcu.h
+++ b/src/common/tusb_mcu.h
@@ -673,7 +673,9 @@
 #elif TU_CHECK_MCU(OPT_MCU_AT32F403A_407, OPT_MCU_AT32F413)
   #define TUP_USBIP_FSDEV
   #define TUP_USBIP_FSDEV_AT32
-  #define CFG_TUSB_FSDEV_PMA_SIZE 512u
+  #define CFG_TUSB_FSDEV_PMA_SIZE 768u
+  #define CFG_TUSB_FIFO_HWFIFO_DATA_STRIDE 2
+  #define CFG_TUSB_FIFO_HWFIFO_ADDR_STRIDE 4
 
 #elif TU_CHECK_MCU(OPT_MCU_AT32F415)
   #define TUP_USBIP_DWC2
diff --git a/src/portable/st/stm32_fsdev/fsdev_at32.h b/src/portable/st/stm32_fsdev/fsdev_at32.h
index 212c3b86da..9138dc1016 100644
--- a/src/portable/st/stm32_fsdev/fsdev_at32.h
+++ b/src/portable/st/stm32_fsdev/fsdev_at32.h
@@ -17,7 +17,7 @@
 
 #define FSDEV_USE_SBUF_ISO 0
 #define FSDEV_REG_BASE  (APB1PERIPH_BASE + 0x00005C00UL)
-#define FSDEV_PMA_BASE  (APB1PERIPH_BASE + 0x00006000UL)
+#define FSDEV_PMA_BASE  (APB1PERIPH_BASE + 0x00007800UL)
 
 #ifndef CFG_TUD_FSDEV_DOUBLE_BUFFERED_ISO_EP
   #define CFG_TUD_FSDEV_DOUBLE_BUFFERED_ISO_EP 0
diff --git a/src/portable/st/stm32_fsdev/fsdev_common.c b/src/portable/st/stm32_fsdev/fsdev_common.c
index 2b573899a9..def3b2c2ea 100644
--- a/src/portable/st/stm32_fsdev/fsdev_common.c
+++ b/src/portable/st/stm32_fsdev/fsdev_common.c
@@ -33,6 +33,11 @@ void fsdev_core_reset(void) {
 
   // Clear pending interrupts
   FSDEV_REG->ISTR = 0;
+
+  #if (CFG_TUSB_MCU == OPT_MCU_AT32F403A_407) || (CFG_TUSB_MCU == OPT_MCU_AT32F413)
+  // Enable larger PMA area
+  CRM->misc1_bit.usbbufs = TRUE;
+  #endif
 }
 
 // De-initialize the USB Core