Posted on October 09, 2015 at 12:02hallo,
i am trying to transmit data to stm32 from an android phone.
i setup a receive and send buffer for usb each with 256 bytes.
if i send one bulk packet with less or equal to 64bytes and echo in back things work fine.
But if i setup a buffer of 256 bytes and try to transmist 2 packets, on with 64 bytes and one with 1 byte or more, the first is transmitted correct but the second creates a GRXSTS_PKTSTS_DATA_TOGGLE_ERR event and makes the usb stack unusable for more data transmission.
i am using stdperipheral library, freertos and st's usb library in version 2.1.0.
Any suggestion what's going on there and how to fix this?
