Il y avait des problèmes dans la libraire...

Fork of USBDEVICE by ST

Branch:
master
Revision:
4:50ec00aa4515
Parent:
1:2a3ae13b45ef
--- a/USBDevice/TARGET_STM/USBHAL_STM_144_64pins.h	Wed Feb 15 09:48:15 2017 +0100
+++ b/USBDevice/TARGET_STM/USBHAL_STM_144_64pins.h	Tue Mar 28 11:00:57 2017 +0200
@@ -121,7 +121,7 @@
     /*  bulk/int 64 bytes in FS  */
     HAL_PCDEx_SetTxFiFo(&hpcd, 0, (MAX_PACKET_SIZE_EP0/4)+1);
     /*  bulk/int bytes in FS */
-    HAL_PCDEx_SetTxFiFo(&hpcd, 1, (MAX_PACKET_SIZE_EP1/4));
+    HAL_PCDEx_SetTxFiFo(&hpcd, 1, (MAX_PACKET_SIZE_EP1/4)+1);
     HAL_PCDEx_SetTxFiFo(&hpcd, 2, (MAX_PACKET_SIZE_EP2/4));
     /* ISOchronous */
     HAL_PCDEx_SetTxFiFo(&hpcd, 3, (MAX_PACKET_SIZE_EP3/4));