https://community.nxp.com/t5/Processor-Expert-Software/PE-USB-HOST-STACK-sends-only-first-4-bytes-of-the-packet/m-p/753409#M4129 <HTML><HEAD></HEAD><BODY><P>Hello, I'm using KDS v3.2.0 and USB_HOST_STACK PE Component from USB Stack v4.1.1.</P><P></P><P>I'm making a project for a custom vendor device that has only 2 bulk pipes, IN and OUT. I have almost the same project in CodeWarrior without using ProcessorExpert and that project works fine.&nbsp;</P><P></P><P>My problem is that PE USB Stack has 2 bugs on my side, and the main bug is that&nbsp;<EM>_usb_host_send_data</EM> function sends only first 4 bytes of the buffer. I debugged through the code and figured out that the problem function is&nbsp;<STRONG>USB_LDD_HostSendData</STRONG> (generated by PE) within <EM>khci.c</EM> file. And this is the main difference between KDS and CW projects - CW ones uses&nbsp;<STRONG>_usb_khci_atom_tr&nbsp;</STRONG>to send/receive data.</P><P></P><P>The second bug is that I can receive the data from the device, but cannot get received data size, it is always set to the buffer size. But this bug is not critical.</P><P></P><P>I tried to port <EM>_usb_khci_task</EM> function from CW project to KDS one, but without any success.</P></BODY></HTML> Mon, 14 May 2018 21:57:49 GMT qweasd 2018-05-14T21:57:49Z https://community.nxp.com/t5/Processor-Expert-Software/PE-USB-HOST-STACK-sends-only-first-4-bytes-of-the-packet/m-p/753409#M4129 <HTML><HEAD></HEAD><BODY><P>Hello, I'm using KDS v3.2.0 and USB_HOST_STACK PE Component from USB Stack v4.1.1.</P><P></P><P>I'm making a project for a custom vendor device that has only 2 bulk pipes, IN and OUT. I have almost the same project in CodeWarrior without using ProcessorExpert and that project works fine.&nbsp;</P><P></P><P>My problem is that PE USB Stack has 2 bugs on my side, and the main bug is that&nbsp;<EM>_usb_host_send_data</EM> function sends only first 4 bytes of the buffer. I debugged through the code and figured out that the problem function is&nbsp;<STRONG>USB_LDD_HostSendData</STRONG> (generated by PE) within <EM>khci.c</EM> file. And this is the main difference between KDS and CW projects - CW ones uses&nbsp;<STRONG>_usb_khci_atom_tr&nbsp;</STRONG>to send/receive data.</P><P></P><P>The second bug is that I can receive the data from the device, but cannot get received data size, it is always set to the buffer size. But this bug is not critical.</P><P></P><P>I tried to port <EM>_usb_khci_task</EM> function from CW project to KDS one, but without any success.</P></BODY></HTML> Mon, 14 May 2018 21:57:49 GMT https://community.nxp.com/t5/Processor-Expert-Software/PE-USB-HOST-STACK-sends-only-first-4-bytes-of-the-packet/m-p/753409#M4129 qweasd 2018-05-14T21:57:49Z