[英]Can not connect to J-Link via USB on macOS Sierra
I recently switched from Linux machine to Macbook Pro 2016 with macOS Sierra 10.12.4.我最近从 Linux 机器切换到装有 macOS Sierra 10.12.4 的 Macbook Pro 2016。
When I try to connect to J-Link it fails no matter which app I am using (JLinkExe or JLinkGDBServer) with the following error:当我尝试连接到 J-Link 时,无论我使用哪个应用程序(JLinkExe 或 JLinkGDBServer),它都会失败并出现以下错误:
kuba@chimera:~$ JLinkExe
SEGGER J-Link Commander V6.14c (Compiled Mar 31 2017 17:42:24)
DLL version V6.14c, compiled Mar 31 2017 17:42:10
Connecting to J-Link via USB...FAILED: Can not connect to J-Link via USB.
J-Link>
There is absolutely no information about J-Link in dmesg. dmesg 中绝对没有关于 J-Link 的信息。 I suspect, that there may be some problem regarding USB-C ports in my laptop.
我怀疑,我的笔记本电脑中的 USB-C 端口可能存在一些问题。 However, I tried two different adapters with no result.
但是,我尝试了两种不同的适配器,但没有结果。 On Linux it did work just fine.
在 Linux 上它确实工作得很好。
Any ideas?有任何想法吗? Thanks.
谢谢。
EDIT: Here is the shortened output of "ioreg -p IOUSB -l -w 0":编辑:这是“ioreg -p IOUSB -l -w 0”的缩短输出:
+-o Root Hub Simulation Simulation@14000000 <class AppleUSBRootHubDevice, id 0x1000004fa, registered, matched, active, busy 0 (1 ms), retain 12>
| | {
| | "iManufacturer" = 0
| | "bNumConfigurations" = 1
| | "idProduct" = 32775
| | "bMaxPacketSize0" = 8
| | "Built-In" = Yes
| | "iProduct" = 0
| | "USB Product Name" = "Root Hub Simulation Simulation"
| | "iSerialNumber" = 0
| | "bDeviceClass" = 9
| | "IOPowerManagement" = {"DevicePowerState"=0,"CurrentPowerState"=4,"CapabilityFlags"=32768,"MaxPowerState"=4,"DriverPowerState"=4}
| | "IOUserClientClass" = "IOUSBDeviceUserClientV2"
| | "locationID" = 335544320
| | "bDeviceSubClass" = 255
| | "bcdUSB" = 256
| | "non-removable" = "yes"
| | "IOCFPlugInTypes" = {"9dc7b780-9ec0-11d4-a54f-000a27052861"="IOUSBFamily.kext/Contents/PlugIns/IOUSBLib.bundle"}
| | "bDeviceProtocol" = 3
| | "USB Vendor Name" = "Apple Inc."
| | "Device Speed" = 3
| | "idVendor" = 1452
| | "IOGeneralInterest" = "IOCommand is not serializable"
| | "IOClassNameOverride" = "IOUSBRootHubDevice"
| | }
| |
| +-o iBridge@14100000 <class AppleUSBDevice, id 0x100006f4e, registered, matched, active, busy 0 (20 ms), retain 35>
| {
| "sessionID" = 57710128085962
| "iManufacturer" = 1
| "bNumConfigurations" = 3
| "idProduct" = 34304
| "bcdDevice" = 257
| "Bus Power Available" = 250
| "USB Address" = 1
| "bMaxPacketSize0" = 64
| "iProduct" = 2
| "iSerialNumber" = 0
| "bDeviceClass" = 239
| "Built-In" = Yes
| "locationID" = 336592896
| "bDeviceSubClass" = 2
| "bcdUSB" = 512
| "USB Product Name" = "iBridge"
| "PortNum" = 1
| "non-removable" = "yes"
| "IOCFPlugInTypes" = {"9dc7b780-9ec0-11d4-a54f-000a27052861"="IOUSBFamily.kext/Contents/PlugIns/IOUSBLib.bundle"}
| "bDeviceProtocol" = 1
| "IOUserClientClass" = "IOUSBDeviceUserClientV2"
| "IOPowerManagement" = {"DevicePowerState"=2,"CurrentPowerState"=4,"CapabilityFlags"=32768,"MaxPowerState"=4,"DriverPowerState"=4}
| "kUSBCurrentConfiguration" = 2
| "Device Speed" = 2
| "USB Vendor Name" = "Apple Inc."
| "idVendor" = 1452
| "IOGeneralInterest" = "IOCommand is not serializable"
| "IOClassNameOverride" = "IOUSBDevice"
| }
|
+-o Root Hub Simulation Simulation@00000000 <class AppleUSBRootHubDevice, id 0x100003abf, registered, matched, active, busy 0 (2 ms), retain 8>
| {
| "iManufacturer" = 0
| "bNumConfigurations" = 1
| "idProduct" = 32775
| "bMaxPacketSize0" = 8
| "Built-In" = Yes
| "iProduct" = 0
| "USB Product Name" = "Root Hub Simulation Simulation"
| "iSerialNumber" = 0
| "bDeviceClass" = 9
| "IOPowerManagement" = {"DevicePowerState"=0,"CurrentPowerState"=4,"CapabilityFlags"=32768,"MaxPowerState"=4,"DriverPowerState"=4}
| "IOUserClientClass" = "IOUSBDeviceUserClientV2"
| "locationID" = 0
| "bDeviceSubClass" = 255
| "bcdUSB" = 256
| "non-removable" = "yes"
| "IOCFPlugInTypes" = {"9dc7b780-9ec0-11d4-a54f-000a27052861"="IOUSBFamily.kext/Contents/PlugIns/IOUSBLib.bundle"}
| "bDeviceProtocol" = 3
| "USB Vendor Name" = "Apple Inc."
| "Device Speed" = 3
| "idVendor" = 1452
| "IOGeneralInterest" = "IOCommand is not serializable"
| "IOClassNameOverride" = "IOUSBRootHubDevice"
| }
|
+-o Root Hub Simulation Simulation@01000000 <class AppleUSBRootHubDevice, id 0x10000486e, registered, matched, active, busy 0 (2 ms), retain 8>
{
"iManufacturer" = 0
"bNumConfigurations" = 1
"idProduct" = 32775
"bMaxPacketSize0" = 8
"Built-In" = Yes
"iProduct" = 0
"USB Product Name" = "Root Hub Simulation Simulation"
"iSerialNumber" = 0
"bDeviceClass" = 9
"IOPowerManagement" = {"DevicePowerState"=0,"CurrentPowerState"=4,"CapabilityFlags"=32768,"MaxPowerState"=4,"DriverPowerState"=4}
"IOUserClientClass" = "IOUSBDeviceUserClientV2"
"locationID" = 16777216
"bDeviceSubClass" = 255
"bcdUSB" = 256
"non-removable" = "yes"
"IOCFPlugInTypes" = {"9dc7b780-9ec0-11d4-a54f-000a27052861"="IOUSBFamily.kext/Contents/PlugIns/IOUSBLib.bundle"}
"bDeviceProtocol" = 3
"USB Vendor Name" = "Apple Inc."
"Device Speed" = 3
"idVendor" = 1452
"IOGeneralInterest" = "IOCommand is not serializable"
"IOClassNameOverride" = "IOUSBRootHubDevice"
}
I worked it out.我解决了。 My USB connector in J-Link cable was badly constructed and something didn't connect as it should.
我的 J-Link 电缆中的 USB 连接器构造不良,某些东西没有按应有的方式连接。 I tried a different USB cable and it was OK.
我尝试了不同的 USB 电缆,它没问题。
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