[RF loopback failed] Alright, so i broke it already

lotharn · 23 July 2020 02:30

so… The lime quicktests kept failing, and I flashed the device again. something happened in while flashing the device, and well… looks like I’m going to be downloading the cypress sdk for ubuntu. Thought I’d create a thread to document my failure.
Connected to [WestBridge [USB 2.0] 4BE]
TransferPacket: Write failed (ret=-9)
TransferPacket: Write failed (ret=-9)
TransferPacket: Write failed (ret=-9)
Update not supported: UNKNOWN[HW=0]

Programming update failed!

This is where I am at currently.
I’ve downloaded FX3_SDK_1.3.4_Linux.tar.gz and CyUSB3_USB_Suite_Source.zip. I noticed however that the only instructions on the wiki are for windows, which isnt a thing that is done around these parts.

Before I go hacking around looking for gold does anyone want to point me toward the pinata?

lotharn · 23 July 2020 02:56

So, using the images from github, and limesuite, it would appear that the device is functional again. At least it looks like a device again.

Anyway, It may be helpful if someone edited the wiki to create a step by step for recovery from this.

lotharn · 23 July 2020 02:57

which would be download the images, start limesuite flash them, reset the device, the sdk and cypress do not need to be involved.

lotharn · 23 July 2020 03:05

nick@ipad:~/Downloads$ LimeQuickTest
[ TESTING STARTED ]
->Start time: Wed Jul 22 20:00:05 2020

->Device: LimeSDR-USB, media=USB 3.0, module=FX3, addr=1d50:6108, serial=00090726074E3527
Serial Number: 00090726074E3527

[ Clock Network Test ]
->FX3 GPIF clock test
Test results: 38267; 42023; 45779 - PASSED
->Si5351C test
CLK0: 17554 / 17554 - PASSED
CLK1: 17554 / 17554 - PASSED
CLK2: 17554 / 17554 - PASSED
CLK3: 17554 / 17554 - PASSED
CLK4: 17554 / 17554 - PASSED
CLK5: 17554 / 17554 - PASSED
CLK6: 17554 / 17554 - PASSED
->ADF4002 Test
Result: 10 - PASSED
->VCTCXO test
Results : 5112937 (min); 5113073 (max) - PASSED
->Clock Network Test PASSED

[ FPGA EEPROM Test ]
->Read EEPROM
->Read data: 12 07 1A 12 07 1A 02
->FPGA EEPROM Test PASSED

[ LMS7002M Test ]
->Perform Registers Test
->External Reset line test
Reg 0x20: Write value 0xFFFD, Read value 0xFFFD
Reg 0x20: value after reset 0x0FFFF
->LMS7002M Test PASSED

[ RF Loopback Test ]
Note: The test should be run without anything connected to RF ports
->Configure LMS
TransferPacket: Read failed (ret=0)
SetPllFrequency: configure FPGA PLL, failed to write registers
->Run Tests (TX_2-> LNA_L):
SetFrequencySXT(805 MHz) - cannot deliver frequency
->Run Tests (TX_1 -> LNA_W):
SetFrequencySXT(1805 MHz) - cannot deliver frequency
->Run Tests (TX_2-> LNA_H):
SetFrequencySXT(2505 MHz) - cannot deliver frequency
->RF Loopback Test FAILED

=> Board tests FAILED <=

Elapsed time: 2.00 seconds

Is this a power deficiency?

lotharn · 23 July 2020 03:33

nick@ipad:~/Downloads$ LimeQuickTest
[ TESTING STARTED ]
->Start time: Wed Jul 22 20:28:50 2020

->Device: LimeSDR-USB, media=USB 2.0, module=FX3, addr=1d50:6108, serial=00090726074E3527
Warning: USB3 not available
Serial Number: 00090726074E3527

[ Clock Network Test ]
->FX3 GPIF clock test
Test results: 61988; 208; 3964 - PASSED
->Si5351C test
CLK0: 17554 / 17554 - PASSED
CLK1: 17554 / 17554 - PASSED
CLK2: 17554 / 17554 - PASSED
CLK3: 17554 / 17554 - PASSED
CLK4: 17554 / 17554 - PASSED
CLK5: 17554 / 17554 - PASSED
CLK6: 17554 / 17554 - PASSED
->ADF4002 Test
Result: 10 - PASSED
->VCTCXO test
Results : 5112931 (min); 5113066 (max) - PASSED
->Clock Network Test PASSED

[ FPGA EEPROM Test ]
->Read EEPROM
->Read data: 12 07 1A 12 07 1A 02
->FPGA EEPROM Test PASSED

[ LMS7002M Test ]
->Perform Registers Test
->External Reset line test
Reg 0x20: Write value 0xFFFD, Read value 0xFFFD
Reg 0x20: value after reset 0x0FFFF
->LMS7002M Test PASSED

[ RF Loopback Test ]
Note: The test should be run without anything connected to RF ports
->Configure LMS
TransferPacket: Read failed (ret=0)
->Run Tests (TX_2-> LNA_L):
Failed to read samples: Timeout
CH0 (SXR=800.0MHz, SXT=805.0MHz): Result:(-15.0 dBFS, 5.00 MHz) - FAILED
Failed to read samples: Timeout
CH1 (SXR=800.0MHz, SXT=805.0MHz): Result:(-15.0 dBFS, 5.00 MHz) - FAILED
->Run Tests (TX_1 -> LNA_W):
Failed to read samples: Timeout
CH0 (SXR=1800.0MHz, SXT=1805.0MHz): Result:(-15.0 dBFS, 5.00 MHz) - FAILED
Failed to read samples: Timeout
CH1 (SXR=1800.0MHz, SXT=1805.0MHz): Result:(-15.0 dBFS, 5.00 MHz) - FAILED
->Run Tests (TX_2-> LNA_H):
Failed to read samples: Timeout
CH0 (SXR=2500.0MHz, SXT=2505.0MHz): Result:(-15.0 dBFS, 5.00 MHz) - FAILED
Failed to read samples: Timeout
CH1 (SXR=2500.0MHz, SXT=2505.0MHz): Result:(-15.0 dBFS, 5.00 MHz) - FAILED
->RF Loopback Test FAILED

=> Board tests FAILED <=

Elapsed time: 8.96 seconds

With less stuff connected to the usb system, the fail grows more complex. I’m thinking power.

andrewback · 23 July 2020 13:25

Please use a USB 3.0 port. A USB 2.0 port will not supply sufficient power.

lotharn · 23 July 2020 15:46

the first test did not have a usb2 flag. the second one did.
heres another one that is connected directly to the host.

nick@ipad:~/Downloads$ LimeQuickTest
[ TESTING STARTED ]
->Start time: Thu Jul 23 08:42:54 2020

->Device: LimeSDR-USB, media=USB 3.0, module=FX3, addr=1d50:6108, serial=00090726074E3527
Serial Number: 00090726074E3527

[ Clock Network Test ]
->FX3 GPIF clock test
Test results: 39314; 43070; 46826 - PASSED
->Si5351C test
CLK0: 17554 / 17554 - PASSED
CLK1: 17554 / 17554 - PASSED
CLK2: 17554 / 17554 - PASSED
CLK3: 17554 / 17554 - PASSED
CLK4: 17554 / 17554 - PASSED
CLK5: 17554 / 17554 - PASSED
CLK6: 17554 / 17554 - PASSED
->ADF4002 Test
Result: 10 - PASSED
->VCTCXO test
Results : 5112925 (min); 5113059 (max) - PASSED
->Clock Network Test PASSED

[ FPGA EEPROM Test ]
->Read EEPROM
->Read data: 12 07 1A 12 07 1A 02
->FPGA EEPROM Test PASSED

[ LMS7002M Test ]
->Perform Registers Test
->External Reset line test
Reg 0x20: Write value 0xFFFD, Read value 0xFFFD
Reg 0x20: value after reset 0x0FFFF
->LMS7002M Test PASSED

[ RF Loopback Test ]
Note: The test should be run without anything connected to RF ports
->Configure LMS
->Run Tests (TX_2-> LNA_L):
CH0 (SXR=800.0MHz, SXT=805.0MHz): Result:(-13.5 dBFS, 5.00 MHz) - PASSED
CH1 (SXR=800.0MHz, SXT=805.0MHz): Result:(-16.2 dBFS, 5.00 MHz) - PASSED
->Run Tests (TX_1 -> LNA_W):
TransferPacket: Read failed (ret=0)
Failed to read samples: Timeout
CH0 (SXR=1800.0MHz, SXT=1805.0MHz): Result:(-15.0 dBFS, 5.00 MHz) - FAILED
libusb: error [udev_hotplug_event] ignoring udev action bind
libusb: error [udev_hotplug_event] ignoring udev action bind
Failed to read samples: Timeout
CH1 (SXR=1800.0MHz, SXT=1805.0MHz): Result:(-15.0 dBFS, 5.00 MHz) - FAILED
->Run Tests (TX_2-> LNA_H):
Failed to read samples: Timeout
CH0 (SXR=2500.0MHz, SXT=2505.0MHz): Result:(-15.0 dBFS, 5.00 MHz) - FAILED
Failed to read samples: Timeout
CH1 (SXR=2500.0MHz, SXT=2505.0MHz): Result:(-15.0 dBFS, 5.00 MHz) - FAILED
->RF Loopback Test FAILED

=> Board tests FAILED <=

Elapsed time: 5.88 seconds

this stands out to me:

TransferPacket: Read failed (ret=0)

what can cause this?

andrewback · 23 July 2020 15:50

Could be power brownout. Is the board plugged directly into the USB 3.0 port, without any cable in between? It should be possible to use a cable, but sometimes this have been seen to cause problems if lower quality or damaged etc. and resulting in voltage drop.

lotharn · 23 July 2020 16:11

so heres the “power” lines from lsusb -v

cat usb | grep -ni power
26: (Bus Powered)
27: MaxPower 100mA
92: Link Power Management (LPM) Supported
107: (Bus Powered)
133: Self Powered
135: MaxPower 0mA
162: No power switching (usb 1.0)
170: Port 1: 0000.02a0 5Gbps power Rx.Detect
171: Port 2: 0000.0203 5Gbps power U0 enable connect
172: Port 3: 0000.02a0 5Gbps power Rx.Detect
173: Port 4: 0000.02a0 5Gbps power Rx.Detect
174: Port 5: 0000.02a0 5Gbps power Rx.Detect
175: Port 6: 0000.02a0 5Gbps power Rx.Detect
194: Self Powered
220: Self Powered
222: MaxPower 100mA
444: Self Powered
470: (Bus Powered)
471: MaxPower 500mA
531: Power Line Frequency
1066: (Bus Powered)
1092: Self Powered
1094: MaxPower 0mA
1120: No power switching (usb 1.0)
1128: Port 1: 0000.0100 power
1129: Port 2: 0000.0100 power
1130: Port 3: 0000.0100 power
1131: Port 4: 0000.0503 highspeed power enable connect
1132: Port 5: 0000.0103 power enable connect
1133: Port 6: 0000.0100 power
1134: Port 7: 0000.0100 power
1136: Self Powered

https://pastebin.com/9vW2EPx5

lotharn · 23 July 2020 16:12

I’m guessing this means that my laptop simply doesnt drive enough power to usb for this to work period.

lotharn · 24 July 2020 01:09

1
2	Bus 002 Device 023: ID 1d50:6108 OpenMoko, Inc.
3	Device Descriptor:
4	bLength 18
5	bDescriptorType 1
6	bcdUSB 3.00
7	bDeviceClass 0 (Defined at Interface level)
8	bDeviceSubClass 0
9	bDeviceProtocol 0
10	bMaxPacketSize0 9
11	idVendor 0x1d50 OpenMoko, Inc.
12	idProduct 0x6108
13	bcdDevice 0.00
14	iManufacturer 1 Myriad-RF
15	iProduct 2 LimeSDR-USB
16	iSerial 3 00090726074E3527
17	bNumConfigurations 1
18	Configuration Descriptor:
19	bLength 9
20	bDescriptorType 2
21	wTotalLength 70
22	bNumInterfaces 1
23	bConfigurationValue 1
24	iConfiguration 0
25	bmAttributes 0x80
26	(Bus Powered)
27	MaxPower 100mA
28	Interface Descriptor:
29	bLength 9
30	bDescriptorType 4
31	bInterfaceNumber 0
32	bAlternateSetting 0
33	bNumEndpoints 4
34	bInterfaceClass 255 Vendor Specific Class
35	bInterfaceSubClass 0
36	bInterfaceProtocol 0
37	iInterface 0
38	Endpoint Descriptor:
39	bLength 7
40	bDescriptorType 5
41	bEndpointAddress 0x01 EP 1 OUT
42	bmAttributes 2
43	Transfer Type Bulk
44	Synch Type None
45	Usage Type Data
46	wMaxPacketSize 0x0400 1x 1024 bytes
47	bInterval 0
48	bMaxBurst 15
49	Endpoint Descriptor:
50	bLength 7
51	bDescriptorType 5
52	bEndpointAddress 0x81 EP 1 IN
53	bmAttributes 2
54	Transfer Type Bulk
55	Synch Type None
56	Usage Type Data
57	wMaxPacketSize 0x0400 1x 1024 bytes
58	bInterval 0
59	bMaxBurst 15
60	Endpoint Descriptor:
61	bLength 7
62	bDescriptorType 5
63	bEndpointAddress 0x0f EP 15 OUT
64	bmAttributes 2
65	Transfer Type Bulk
66	Synch Type None
67	Usage Type Data
68	wMaxPacketSize 0x0400 1x 1024 bytes
69	bInterval 0
70	bMaxBurst 0
71	Endpoint Descriptor:
72	bLength 7
73	bDescriptorType 5
74	bEndpointAddress 0x8f EP 15 IN
75	bmAttributes 2
76	Transfer Type Bulk
77	Synch Type None
78	Usage Type Data
79	wMaxPacketSize 0x0400 1x 1024 bytes
80	bInterval 0
81	bMaxBurst 0
82	Binary Object Store Descriptor:
83	bLength 5
84	bDescriptorType 15
85	wTotalLength 22
86	bNumDeviceCaps 2
87	USB 2.0 Extension Device Capability:
88	bLength 7
89	bDescriptorType 16
90	bDevCapabilityType 2
91	bmAttributes 0x00000002
92	Link Power Management (LPM) Supported
93	SuperSpeed USB Device Capability:
94	bLength 10
95	bDescriptorType 16
96	bDevCapabilityType 3
97	bmAttributes 0x00
98	wSpeedsSupported 0x000e
99	Device can operate at Full Speed (12Mbps)
100	Device can operate at High Speed (480Mbps)
101	Device can operate at SuperSpeed (5Gbps)
102	bFunctionalitySupport 3
103	Lowest fully-functional device speed is SuperSpeed (5Gbps)
104	bU1DevExitLat 0 micro seconds
105	bU2DevExitLat 0 micro seconds
106	Device Status: 0x0000
107	(Bus Powered)
108
109	Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
110	Device Descriptor:
111	bLength 18
112	bDescriptorType 1
113	bcdUSB 3.00
114	bDeviceClass 9 Hub
115	bDeviceSubClass 0 Unused
116	bDeviceProtocol 3
117	bMaxPacketSize0 9
118	idVendor 0x1d6b Linux Foundation
119	idProduct 0x0003 3.0 root hub
120	bcdDevice 4.16
121	iManufacturer 3 Linux 4.16.18-galliumos xhci-hcd
122	iProduct 2 xHCI Host Controller
123	iSerial 1 0000:00:14.0
124	bNumConfigurations 1
125	Configuration Descriptor:
126	bLength 9
127	bDescriptorType 2
128	wTotalLength 31
129	bNumInterfaces 1
130	bConfigurationValue 1
131	iConfiguration 0
132	bmAttributes 0xe0
133	Self Powered
134	Remote Wakeup
135	MaxPower 0mA
136	Interface Descriptor:
137	bLength 9
138	bDescriptorType 4
139	bInterfaceNumber 0
140	bAlternateSetting 0
141	bNumEndpoints 1
142	bInterfaceClass 9 Hub
143	bInterfaceSubClass 0 Unused
144	bInterfaceProtocol 0 Full speed (or root) hub
145	iInterface 0
146	Endpoint Descriptor:
147	bLength 7
148	bDescriptorType 5
149	bEndpointAddress 0x81 EP 1 IN
150	bmAttributes 3
151	Transfer Type Interrupt
152	Synch Type None
153	Usage Type Data
154	wMaxPacketSize 0x0004 1x 4 bytes
155	bInterval 12
156	bMaxBurst 0
157	Hub Descriptor:
158	bLength 12
159	bDescriptorType 42
160	nNbrPorts 6
161	wHubCharacteristic 0x000a
162	No power switching (usb 1.0)
163	Per-port overcurrent protection
164	bPwrOn2PwrGood 10 * 2 milli seconds
165	bHubContrCurrent 0 milli Ampere
166	bHubDecLat 0.0 micro seconds
167	wHubDelay 0 nano seconds
168	DeviceRemovable 0x00
169	Hub Port Status:
170	Port 1: 0000.02a0 5Gbps power Rx.Detect
171	Port 2: 0000.0203 5Gbps power U0 enable connect
172	Port 3: 0000.02a0 5Gbps power Rx.Detect
173	Port 4: 0000.02a0 5Gbps power Rx.Detect
174	Port 5: 0000.02a0 5Gbps power Rx.Detect
175	Port 6: 0000.02a0 5Gbps power Rx.Detect
176	Binary Object Store Descriptor:
177	bLength 5
178	bDescriptorType 15
179	wTotalLength 15
180	bNumDeviceCaps 1
181	SuperSpeed USB Device Capability:
182	bLength 10
183	bDescriptorType 16
184	bDevCapabilityType 3
185	bmAttributes 0x02
186	Latency Tolerance Messages (LTM) Supported
187	wSpeedsSupported 0x0008
188	Device can operate at SuperSpeed (5Gbps)
189	bFunctionalitySupport 3
190	Lowest fully-functional device speed is SuperSpeed (5Gbps)
191	bU1DevExitLat 10 micro seconds
192	bU2DevExitLat 512 micro seconds
193	Device Status: 0x0001
194	Self Powered

is the sdr even attempting to increase it’s power?

andrewback · 24 July 2020 09:37

I can’t see why not and this is handled by the Cypress FX3 controller. If the port is enumerating as USB 3.0 and Lime Suite can run tests, albeit with issues and it appears that insufficient current is being supplied, I’d suspect the host port and try other computers if possible. It has been known for certain USB 3.0 chipsets to be problematic and this something not limited to LimeSDR USB, but also USB 3.0 devices also. If we can at least rule the port out this would be good.

Perhaps @zack may have some other suggestions.

lotharn · 31 July 2020 04:01

I put this on hold for a little while but I did end up grabbing a different usb hub that has power attached to it.

One question, what is the maximum safe voltage that the board will accept? Can this be hooked up to a 10-16v auto circuit?

Snip--------------------------------------------------------------

nick@ipad:~$ LimeQuickTest 
[ TESTING STARTED ]
->Start time: Thu Jul 30 20:53:23 2020

->Device: LimeSDR-USB, media=USB 3.0, module=FX3, addr=1d50:6108, serial=00090726074E3527, HW=4, GW=2.23
  Serial Number: 00090726074E3527
Chip temperature: 27 C

[ Clock Network Test ]
->FX3 GPIF clock test
  Test results: 43986; 47742; 51498 - PASSED
->Si5351C test
  CLK0: 17554 / 17554 - PASSED
  CLK1: 17554 / 17554 - PASSED
  CLK2: 17554 / 17554 - PASSED
  CLK3: 17554 / 17554 - PASSED
  CLK4: 17554 / 17554 - PASSED
  CLK5: 17554 / 17554 - PASSED
  CLK6: 17554 / 17554 - PASSED
->ADF4002 Test
  Result: 10 - PASSED
->VCTCXO test
  Results : 5112929 (min); 5113063 (max) - PASSED
->Clock Network Test PASSED

[ FPGA EEPROM Test ]
->Read EEPROM
->Read data: 12 07 1A 12 07 1A 02
->FPGA EEPROM Test PASSED

[ LMS7002M Test ]
->Perform Registers Test
->External Reset line test
  Reg 0x20: Write value 0xFFFD, Read value 0xFFFD
  Reg 0x20: value after reset 0x0FFFF
->LMS7002M Test PASSED

[ RF Loopback Test ]
Note: The test should be run without anything connected to RF ports
->Configure LMS
->Run Tests (TX_2-> LNA_L):
  CH0 (SXR=800.0MHz, SXT=805.0MHz): Result:(-13.7 dBFS, 5.00 MHz) - PASSED
  CH1 (SXR=800.0MHz, SXT=805.0MHz): Result:(-16.4 dBFS, 5.00 MHz) - PASSED
->Run Tests (TX_1 -> LNA_W):
  CH0 (SXR=1800.0MHz, SXT=1805.0MHz): Result:(-18.5 dBFS, 5.00 MHz) - PASSED
  CH1 (SXR=1800.0MHz, SXT=1805.0MHz): Result:(-22.4 dBFS, 5.00 MHz) - FAILED
->Run Tests (TX_2-> LNA_H):
  CH0 (SXR=2500.0MHz, SXT=2505.0MHz): Result:(-17.5 dBFS, 5.00 MHz) - PASSED
  CH1 (SXR=2500.0MHz, SXT=2505.0MHz): Result:(-15.6 dBFS, 5.00 MHz) - PASSED
->RF Loopback Test FAILED

=> Board tests FAILED <=

Elapsed time: 1.66 seconds

SNIP---------------------------------------------------------------

nick@ipad:~$ sudo lsusb -t
[sudo] password for nick: 
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M
    |__ Port 2: Dev 2, If 0, Class=Hub, Driver=hub/4p, 5000M
        |__ Port 3: Dev 5, If 0, Class=Vendor Specific Class, Driver=, 5000M
        |__ Port 4: Dev 3, If 0, Class=Vendor Specific Class, Driver=r8152, 5000M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/7p, 480M
    |__ Port 2: Dev 12, If 0, Class=Hub, Driver=hub/5p, 480M
        |__ Port 1: Dev 13, If 0, Class=Hub, Driver=hub/4p, 480M
            |__ Port 3: Dev 15, If 0, Class=Mass Storage, Driver=usb-storage, 480M
    |__ Port 4: Dev 2, If 1, Class=Video, Driver=uvcvideo, 480M
    |__ Port 4: Dev 2, If 0, Class=Video, Driver=uvcvideo, 480M
    |__ Port 5: Dev 3, If 0, Class=Wireless, Driver=btusb, 12M
    |__ Port 5: Dev 3, If 1, Class=Wireless, Driver=btusb, 12M

SNIP----------------------------------------------------------------------`
nick@ipad:~$ sudo lsusb -v -s 5

Bus 002 Device 005: ID 1d50:6108 OpenMoko, Inc. 
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               3.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0         9
  idVendor           0x1d50 OpenMoko, Inc.
  idProduct          0x6108 
  bcdDevice            0.00
  iManufacturer           1 Myriad-RF
  iProduct                2 LimeSDR-USB
  iSerial                 3 00090726074E3527
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           70
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0x80
      (Bus Powered)
    MaxPower              100mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           4
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass      0 
      bInterfaceProtocol      0 
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst              15
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst              15
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x0f  EP 15 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x8f  EP 15 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0400  1x 1024 bytes
        bInterval               0
        bMaxBurst               0
Binary Object Store Descriptor:
  bLength                 5
  bDescriptorType        15
  wTotalLength           22
  bNumDeviceCaps          2
  USB 2.0 Extension Device Capability:
    bLength                 7
    bDescriptorType        16
    bDevCapabilityType      2
    bmAttributes   0x00000002
      Link Power Management (LPM) Supported
  SuperSpeed USB Device Capability:
    bLength                10
    bDescriptorType        16
    bDevCapabilityType      3
    bmAttributes         0x00
    wSpeedsSupported   0x000e
      Device can operate at Full Speed (12Mbps)
      Device can operate at High Speed (480Mbps)
      Device can operate at SuperSpeed (5Gbps)
    bFunctionalitySupport   3
      Lowest fully-functional device speed is SuperSpeed (5Gbps)
    bU1DevExitLat           0 micro seconds
    bU2DevExitLat           0 micro seconds
Device Status:     0x0000
  (Bus Powered)

SNAP-----------------------------------------------------------

[Jul30 19:10] usb 2-2.3: USB disconnect, device number 5
[ +2.556449] usb 2-2.3: new SuperSpeed USB device number 6 using xhci_hcd
[ +0.014316] usb 2-2.3: LPM exit latency is zeroed, disabling LPM.
[ +0.000840] usb 2-2.3: New USB device found, idVendor=1d50, idProduct=6108
[ +0.000005] usb 2-2.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ +0.000003] usb 2-2.3: Product: LimeSDR-USB
[ +0.000003] usb 2-2.3: Manufacturer: Myriad-RF
[ +0.000003] usb 2-2.3: SerialNumber: 00090726074E3527

I notice this line:
[ +0.014316] usb 2-2.3: LPM exit latency is zeroed, disabling LPM.

is this saying it is disabling link power managment?

Zack · 31 July 2020 08:31

Check here please:
https://wiki.myriadrf.org/LimeSDR-USB_hardware_description#Power_distribution

lotharn · 26 August 2020 03:44

I guess i see that it accepts 6-12v. ok.

lotharn · 26 August 2020 03:49

Sorry about my late reply.

So i’m now providing 3.5 possible amps over usb.

This however has not changed the results of the quick test. I’ve left the device powered overnight, and the system it is connected to isnt showing any of the previous issues that may have been brownout.

nick@ipad:~$ LimeQuickTest 
[ TESTING STARTED ]
->Start time: Tue Aug 25 20:48:24 2020

->Device: LimeSDR-USB, media=USB 3.0, module=FX3, addr=1d50:6108, serial=00090726074E3527, HW=4, GW=2.23
  Serial Number: 00090726074E3527
Chip temperature: 46 C

[ Clock Network Test ]
->FX3 GPIF clock test
  Test results: 32738; 36494; 40250 - PASSED
->Si5351C test
  CLK0: 17554 / 17554 - PASSED
  CLK1: 17554 / 17554 - PASSED
  CLK2: 17554 / 17554 - PASSED
  CLK3: 17554 / 17554 - PASSED
  CLK4: 17554 / 17554 - PASSED
  CLK5: 17554 / 17554 - PASSED
  CLK6: 17554 / 17554 - PASSED
->ADF4002 Test
  Result: 10 - PASSED
->VCTCXO test
  Results : 5112941 (min); 5113077 (max) - PASSED
->Clock Network Test PASSED

[ FPGA EEPROM Test ]
->Read EEPROM
->Read data: 12 07 1A 12 07 1A 02
->FPGA EEPROM Test PASSED

[ LMS7002M Test ]
->Perform Registers Test
->External Reset line test
  Reg 0x20: Write value 0xFFFD, Read value 0xFFFD
  Reg 0x20: value after reset 0x0FFFF
->LMS7002M Test PASSED

[ RF Loopback Test ]
Note: The test should be run without anything connected to RF ports
->Configure LMS
->Run Tests (TX_2-> LNA_L):
  CH0 (SXR=800.0MHz, SXT=805.0MHz): Result:(-14.9 dBFS, 5.00 MHz) - PASSED
  CH1 (SXR=800.0MHz, SXT=805.0MHz): Result:(-18.1 dBFS, 5.00 MHz) - PASSED
->Run Tests (TX_1 -> LNA_W):
  CH0 (SXR=1800.0MHz, SXT=1805.0MHz): Result:(-20.4 dBFS, 5.00 MHz) - PASSED
  CH1 (SXR=1800.0MHz, SXT=1805.0MHz): Result:(-24.0 dBFS, 5.00 MHz) - FAILED
->Run Tests (TX_2-> LNA_H):
  CH0 (SXR=2500.0MHz, SXT=2505.0MHz): Result:(-17.9 dBFS, 5.00 MHz) - PASSED
  CH1 (SXR=2500.0MHz, SXT=2505.0MHz): Result:(-16.2 dBFS, 5.00 MHz) - PASSED
->RF Loopback Test FAILED

=> Board tests FAILED <=

Elapsed time: 1.80 seconds

nick@ipad:~$