USB Bulk out packet size problem

[eric_yp_chen]

Hi 

I'm using rt1050 usb_device_cdc_vcom demo and trying to modify HS_CDC_VCOM_BULK_OUT_PACKET_SIZE from

64 to 2048 or larger.

It work's fine when the value is set to 1024.

After change it to 2048 , it sucked while transmit data out.

Is there any limitation ?

[Alexis_A · Accepted solution]

Hello Eric,

If you check the Table 42-58 in the reference manual you will see that the maximum packet size the endpoint is capable to receive is 1024, if you want to receive transmission greater than this value I will suggest to partition the package.

I hope this helps you.

Best Regards,

Alexis Andalon