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Diffstat (limited to 'cores/arduino/USBCore.cpp')
-rw-r--r--cores/arduino/USBCore.cpp9
1 files changed, 8 insertions, 1 deletions
diff --git a/cores/arduino/USBCore.cpp b/cores/arduino/USBCore.cpp
index 05e2f24..fd25793 100644
--- a/cores/arduino/USBCore.cpp
+++ b/cores/arduino/USBCore.cpp
@@ -253,7 +253,7 @@ u8 USB_SendSpace(u8 ep)
LockEP lock(ep);
if (!ReadWriteAllowed())
return 0;
- return 64 - FifoByteCount();
+ return USB_EP_SIZE - FifoByteCount();
}
// Blocking Send of data to an endpoint
@@ -326,6 +326,7 @@ u8 _initEndpoints[] =
#define EP_SINGLE_64 0x32 // EP0
#define EP_DOUBLE_64 0x36 // Other endpoints
+#define EP_SINGLE_16 0x12
static
void InitEP(u8 index, u8 type, u8 size)
@@ -344,7 +345,13 @@ void InitEndpoints()
UENUM = i;
UECONX = (1<<EPEN);
UECFG0X = _initEndpoints[i];
+#if USB_EP_SIZE == 16
+ UECFG1X = EP_SINGLE_16;
+#elif USB_EP_SIZE == 64
UECFG1X = EP_DOUBLE_64;
+#else
+#error Unsupported value for USB_EP_SIZE
+#endif
}
UERST = 0x7E; // And reset them
UERST = 0;