Hello, I am using a Q2687 refreshed running an Open-At aplication. I need to use the USB port as a UART, like before (7.44), but there isn´t example in the ADL 6.35 documentation. In the developer studio i found 2 examples but they use the USB port as a “Mass Storage Device” and a “Audio Device”. …

If you’re just using it as a UART - for FCM or AT Commands - then it is just UART3, and works exactly the same as UART1 and UART2.

If you want just normal UART – there is no change. just make sure it is enabled (see AT+WMFM command). By default, USB is disabled. If you want to use it in OpenUART mode, it gets complicated. With 7.45, OPENUSB was introduced, so you have to configure and start OPENUSB subsystem before you can run…

Is it :question: [image] FAQ forum/wiki? Forum and Source related topics But note that R7.4 opens the USB port automatically - this is a change from earlier firmware. Have they changed it back again?

Hi, In the Open-AT Aplication I´m doing this: rta = adl_atCmdCreate("AT+WMFM=0,1,3", ADL_AT_PORT_TYPE( ADL_PORT_UART1, TRUE ),(adl_atRspHandler_t)ATUSBHandler,"*",NULL); Response “OK”, the usb is open, next: uart[Port].PortID = adl_fcmSubscribe(ADL_PORT_USB, CtrlUSBHandler, DataUSBHandler); Port …

Is that the return value from the adl_atCmdCreate() call, or the actual response from the AT command :question: Aside: I strongly recommend that you do not cast the handler argument like that! If the type is correct, it is unnecesary and just clutters the code; If the type is not correct, it …

Thanks for the recomendation! “OK” is the return value of adl_atCmdCreate(). “ADL_RET_ERR_BAD_STATE” is the return value of adl_fcmSubscribe(). Thanks.

So what is the response to the AT command? Do you wait for the response to the AT command before attempting the FCM subscription… :question:

The response to the AT command is “OK”. Yes I wait the response before attempting the FCM subscription. I think there are no problems in the code because this Open AT aplication works with 7.44, is the firmware of a device that we sell since a long time and I try only to change de Sierra Wireless …

Unfortunately, that does not prove that your code was correct! You may be right, but there are plenty of cases where flawed code has been shipped & “working” i [/i] for years, and something like a firmware update brings the flaw to light.

Ok, thanks, I will keep working on it! A last question, do you use the USB port in 7.45? not for AT commands.

USB Problem with 7.45 firmware

Legacy Open AT

awneil July 4, 2011, 6:42am 4

Is it

Have they changed it back again?

Topic		Replies	Views
USB Data Mode Open AT	6	2482	November 21, 2011
UART_access Open AT	6	1367	December 10, 2009
Want to Send data to USB with no result Open AT	7	1181	October 15, 2009
Control is not going to Data handler in FCM UART1 Open AT	12	4312	October 28, 2010
[Q2686] loading configuration file by the USB port Open AT	18	2057	April 21, 2009

USB Problem with 7.45 firmware

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