gdsports
commented
5 years ago What is the PID of the device? The only one accepted is 0x6001. But other PID values can be passed on the constructor.
Open rtohme opened 5 years ago
gdsports
commented
5 years ago What is the PID of the device? The only one accepted is 0x6001. But other PID values can be passed on the constructor.
Lauszus
commented
5 years ago @rtohme please also enable serial debugging for the library: https://github.com/felis/USB_Host_Shield_2.0#enable-debugging, so you can tell what is going on.
rtohme
commented
5 years ago What is the PID of the device? The only one accepted is 0x6001. But other PID values can be passed on the constructor.
Here is a dump from "dmesg" on Linux after connecting the SQM-LU to a computer. As you can see in the second line, PID is indeed 0x6001:
[Feb 4 10:54] usb 8-1: new full-speed USB device number 34 using uhci_hcd [ +0.209982] usb 8-1: New USB device found, idVendor=0403, idProduct=6001 [ +0.000003] usb 8-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ +0.000003] usb 8-1: Product: MM232R USB MODULE [ +0.000002] usb 8-1: Manufacturer: FTDI [ +0.000002] usb 8-1: SerialNumber: FTF4FO08 [ +0.007061] ftdi_sio 8-1:1.0: FTDI USB Serial Device converter detected [ +0.000071] usb 8-1: Detected FT232RL [ +0.002012] usb 8-1: FTDI USB Serial Device converter now attached to ttyUSB1
rtohme
commented
5 years ago @rtohme please also enable serial debugging for the library: https://github.com/felis/USB_Host_Shield_2.0#enable-debugging, so you can tell what is going on.
I get this when I connect the SQM device to the USB Host Shield:
FTDI Init Addr:01 NC:01 Conf.Val: 01 Iface Num: 00 Alt.Set: 00 Endpoint descriptor: Length: 07 Type: 05 Address: 81 Attributes: 02 MaxPktSize: 0040 Poll Intrv: 00 Conf.Val: 01 Iface Num: 00 Alt.Set: 00 Endpoint descriptor: Length: 07 Type: 05 Address: 02 Attributes: 02 MaxPktSize: 0040 Poll Intrv: 00 NumEP:03 Conf:01 baud_value:001A baud_index:0000 FTDI configured
I'm trying to send serial commands and read the response from a SQM-LU device from Unihedron (http://www.unihedron.com/projects/sqm-lu). It's a photometer with a USB port that uses the FT232R chipset. I assumed using the Arduino USB Host Shield would allow me to do that, however, I'm using the code in your FTDI loopback example as a base, and I can't get Usb.getUsbTaskState() to return USB_STATE_RUNNING. Instead, it returns a number: it starts at 32 and goes to 104 quickly, then it goes down to 18 when I disconnect the SQM-LU device from the USB Host Shield, but it returns to 104 when I plug it back. I've run the board_qc sketch and my shield seems to be ok. What can be happening?