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-rw-r--r--tinyusb/device/dcd_lpc_11uxx_13uxx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tinyusb/device/dcd_lpc_11uxx_13uxx.c b/tinyusb/device/dcd_lpc_11uxx_13uxx.c
index ae9609088..35c4f47fb 100644
--- a/tinyusb/device/dcd_lpc_11uxx_13uxx.c
+++ b/tinyusb/device/dcd_lpc_11uxx_13uxx.c
@@ -470,7 +470,7 @@ endpoint_handle_t dcd_pipe_open(uint8_t coreid, tusb_descriptor_endpoint_t const
//------------- Prepare Queue Head -------------//
uint8_t ep_id = edpt_addr2phy(p_endpoint_desc->bEndpointAddress);
- ASSERT( dcd_data.qhd[ep_id][0].disable && dcd_data.qhd[ep_id][1].disable, null_handle ); // endpoint must not previously opened
+ ASSERT( dcd_data.qhd[ep_id][0].disable && dcd_data.qhd[ep_id][1].disable, null_handle ); // endpoint must not previously opened, normally this means running out of endpoints
memclr_(dcd_data.qhd[ep_id], 2*sizeof(dcd_11u_13u_qhd_t));
dcd_data.qhd[ep_id][0].is_isochronous = dcd_data.qhd[ep_id][1].is_isochronous = (p_endpoint_desc->bmAttributes.xfer == TUSB_XFER_ISOCHRONOUS);