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cdcacm.c: Use less buffer for the usb_uart buffers and reallocate. 

With 128 bytes for both usb_uart buffers, traceswo gives errors!
Keep the size for the receive buffer and diminisch the transmit buffer,
as there is no flow control to the device.
Probably related to https://github.com/libopencm3/libopencm3/issues/477
This commit is contained in:
Uwe Bonnes 2017-10-26 19:05:18 +02:00
parent cfaa5ea963
commit 3e3e450408
1 changed files with 1 additions and 1 deletions
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2
src/platforms/common/cdcacm.c
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@ -517,7 +517,7 @@ static void cdcacm_set_config(usbd_device *dev, uint16_t wValue)
/* Serial interface */
usbd_ep_setup(dev, 0x03, USB_ENDPOINT_ATTR_BULK,
CDCACM_PACKET_SIZE, usbuart_usb_out_cb);
CDCACM_PACKET_SIZE / 2, usbuart_usb_out_cb);
usbd_ep_setup(dev, 0x83, USB_ENDPOINT_ATTR_BULK,
CDCACM_PACKET_SIZE, usbuart_usb_in_cb);
usbd_ep_setup(dev, 0x84, USB_ENDPOINT_ATTR_INTERRUPT, 16, NULL);