Content originally posted in LPCWare by saraswathi on Mon Jun 17 07:44:15 MST 2013
[LEFT]Hi,
I have a LPC11U24 device connected to a linux host.This device works in USB CDC class. Once the data is sent from device to host using [SIZE=2][SIZE=3][B]VCOM_bulk_in_hdlr,[/B] will the device wait for ACK from the host?[/SIZE][/SIZE]
[SIZE=2][SIZE=3][/SIZE][/SIZE]
[SIZE=2][SIZE=3]I have a situation where for the first read request from the host, the data is sent and received at the host. Immedietly if I send the second read request from the host, no operation happens at device. Also, if I try to generate interrupts from other IOs no interrupts get generated after first data transfer to host. [/SIZE][/SIZE]
[SIZE=2][SIZE=3][/SIZE][/SIZE]
[SIZE=2][SIZE=3]Can anyone please inform me does USB CDC mode operation of LPC11U24 requires ACK from host? If yes, what is the ACK format for linux.[/SIZE][/SIZE]
[SIZE=2][SIZE=3][/SIZE][/SIZE]
[SIZE=2][SIZE=3]Thanks in advance.[/SIZE][/SIZE]
[SIZE=2][SIZE=3][/SIZE][/SIZE]
[SIZE=2][SIZE=3]with regards[/SIZE][/SIZE]
[SIZE=2][SIZE=3]Saraswathi C[/SIZE]
[/SIZE] [/LEFT]
