That concludes our article on the speculations involving the Fulltone OCD, and the differences between each of the versions brought out. Hopefully you have learned a thing or two, and can now make a judgement about which version suits your needs.
Note: Because OpenOCD started out with a focus purely on JTAG, you may findplaces where it wrongly presumes JTAG is the only transport protocolin use. Be aware that recent versions of OpenOCD are removing thatlimitation. JTAG remains more functional than most other transports.Other transports do not support boundary scan operations, or may bespecific to a given chip vendor. Some might be usable only forprogramming flash memory, instead of also for debugging.
Ocd Versions Serial Number
Some adapters require that the GPIO chip number is set in addition to the GPIOnumber. The configuration options enable signals to be defined as active-high oractive-low. The output drive mode can be set to push-pull, open-drain oropen-source. Most adapters will have to emulate open-drain or open-source drivemodes by switching between an input and output. Input and output signals can beinstructed to use a pull-up or pull-down resistor, assuming it is supported bythe adaptor driver and hardware. The initial state of outputs may also be set,"active" state means 1 for active-high outputs and 0 for active-low outputs.Bidirectional signals may also be initialized as an input. If the swdio signalis buffered the buffer direction can be controlled with the swdio_dir signal;the active state means that the buffer should be set as an output with respectto the adapter. The command options are cumulative with later commands able tooverride settings defined by earlier ones. The two commands gpio led 7-active-high and gpio led -chip 1 -active-low sent sequentially areequivalent to issuing the single command gpio led 7 -chip 1-active-low. It is not permissible to set the drive mode or initial state forsignals which are inputs. The drive mode for the srst and trst signals must beset with the adapter reset_config command. It is not permissible toset the initial state of swdio_dir as it is derived from the initial state ofswdio. The command adapter gpio prints the current configuration forall GPIOs while the command adapter gpio gpio_name prints the currentconfiguration for gpio_name. Not all adapters support this generic GPIO mapping,some require their own commands to define the GPIOs used. Adapters that supportthe generic mapping may not support all of the listed options.
Specifies the serial_string of the adapter to use.If this command is not specified, serial strings are not checked.Only the following adapter drivers use the serial string from this command:arm-jtag-ew, cmsis_dap, esp_usb_jtag, ft232r, ftdi, hla (stlink, ti-icdi), jlink, kitprog, opendus,openjtag, osbdm, presto, rlink, st-link, usb_blaster (ublast2), usbprog, vsllink, xds110.
Take given numbers as bytes, assemble a CMSIS-DAP protocol command packetfrom them and send it to the adapter. The first 4 bytes of the adapter responseare logged.See -software.github.io/CMSIS_5/DAP/html/group__DAP__Commands__gr.html
Specifies the initial values of the FTDI GPIO data and direction registers.Each value is a 16-bit number corresponding to the concatenation of the highand low FTDI GPIO registers. The values should be selected based on theschematics of the adapter, such that all signals are set to safe levels withminimal impact on the target system. Avoid floating inputs, conflicting outputsand initially asserted reset signals.
User can change default pinout by supplying configurationcommands with GPIO numbers or RS232 signal names.GPIO numbers correspond to bit numbers in FTDI GPIO register.They differ from physical pin numbers.For details see actual FTDI chip datasheets.Every JTAG line must be configured to unique GPIO numberdifferent than any other JTAG line, even those linesthat are sometimes not used like TRST or SRST.
Restore serial port after JTAG. This USB bitmode control word(16-bit) will be sent before quit. Lower byte shouldset GPIO direction register to a "sane" state:0x15 for TXD RTS DTR as outputs (1), others as inputs (0). Higherbyte is usually 0 to disable bitbang mode.When kernel driver reattaches, serial port should continue to work.Value 0xFFFF disables sending control word and serial port,then kernel driver will not reattach.If not specified, default 0xFFFF is used.
Compatibility Note: SEGGER released many firmware versions for the many hardware versions theyproduced. OpenOCD was extensively tested and intended to run on all of them,but some combinations were reported as incompatible. As a generalrecommendation, it is advisable to use the latest firmware versionavailable for each hardware version. However the current V8 is a movingtarget, and SEGGER firmware versions released after the OpenOCD wasreleased may not be compatible. In such cases it is recommended torevert to the last known functional version. For 0.5.0, this is from"Feb 8 2012 14:30:39", packed with 4.42c. For 0.6.0, the last knownversion is from "May 3 2012 18:36:22", packed with 4.46f.
Set the USB address of the interface, in case more than one adapter is connectedto the host. If not specified, USB addresses are not considered. Deviceselection via USB address is not always unambiguous. It is recommended to usethe serial number instead, if possible.
Currently supported adapters include the STMicroelectronics ST-LINK, TI ICDIand Nuvoton Nu-Link.ST-LINK firmware version >= V2.J21.S4 recommended due to issues with earlierversions of firmware where serial number is reset after first use. Suggestusing ST firmware update utility to upgrade ST-LINK firmware even if currentversion reported is V2.J21.S4.
The new API provide access to multiple AP on the same DAP, but themaximum number of the AP port is limited by the specific firmware version(e.g. firmware V2J29 has 3 as maximum AP number, while V2J32 has 8).An error is returned for any AP number above the maximum allowed value.
Most hardware development boards have a UART, a real serial port, or a virtual USB serial device, so this driverallows you to start building your own JTAG adapter without the complexity of a custom USB connection.
* If your device doesn't have iOS 14 or iPadOS 14 or later and your AirPods are connected to your device, you can find the model number by going to Settings > General > About. Then scroll down until you see the name of your AirPods, and then tap the name.
If you can't use Settings to get your model number, you can find it on your AirPods. The model number is on the first line of the text printed on the underside of each AirPod, or underneath the left cushion of your AirPods Max.
The MagSafe Charging Case for AirPods Pro (2nd generation) is compatible with Qi-certified wireless chargers, and it can align magnetically with MagSafe-compatible chargers. There's a Lightning connector on the bottom of the case for plug-in charging. There's also an external speaker on the bottom of the case to indicate charging and battery status, and a lanyard loop on the side. The status light is on the front of the case, and the serial number is on the underside of the lid.
The MagSafe Charging Case for AirPods (3rd generation) is compatible with Qi-certified wireless chargers, and it can align magnetically with MagSafe-compatible chargers. There's a Lightning connector on the bottom of the case for plug-in charging. The status light is on the front of the case, and the serial number is on the underside of the lid.
The MagSafe Charging Case for AirPods Pro is compatible with Qi-certified wireless chargers, and it can align magnetically with MagSafe-compatible chargers. There's a Lightning connector on the bottom of the case for plug-in charging. The status light is on the front of the case, and the serial number is on the underside of the lid. The last four digits of the serial number are either 1059 or 1NRC.
The AirPods Pro Charging Case works with Qi-certified wireless chargers. There's a Lightning connector on the bottom of the case for plug-in charging. The status light is on the front of the case, and the serial number is on the underside of the lid. The last four digits of the serial number are either 0C6L or LKKT.
The Wireless Charging Case is Qi compatible. There's a Lightning connector on the bottom of the case for plug-in charging. The status light is on the front of the case, and the serial number is on the underside of the lid.
You can find the serial number of your AirPods in the same place as the model number. Follow the steps at the beginning of this article. If necessary, you can learn other ways to find the serial number.
The EDID data structure includes manufacturer name and serial number, product type, phosphor or filter type (as chromaticity data), timings supported by the display, display size, luminance data and (for digital displays only) pixel mapping data.
This problem is solved by EDID and DDC, as it enables the display to send information to the graphics card it is connected to. The transmission of EDID information usually uses the Display Data Channel protocol, specifically DDC2B, which is based on IC-bus (DDC1 used a different serial format which never gained popularity). The data is transmitted via the cable connecting the display and the graphics card; VGA, DVI and HDMI are supported.
The EDID is often stored in the monitor in the firmware chip called serial EEPROM (electrically erasable programmable read-only memory) and is accessible via the IC-bus at address 0x50. The EDID PROM can often be read by the host PC even if the display itself is turned off.
Some graphics card drivers have historically coped poorly with the EDID, using only its standard timing descriptors rather than its Detailed Timing Descriptors (DTDs). Even in cases where the DTDs were read, the drivers are/were still often limited by the standard timing descriptor limitation that the horizontal/vertical resolutions must be evenly divisible by 8. This means that many graphics cards cannot express the native resolutions of the most common wide screen flat panel displays and liquid crystal display televisions. The number of vertical pixels is calculated from the horizontal resolution and the selected aspect ratio. To be fully expressible, the size of wide screen display must thus be a multiple of 169 pixels. For 1366768 pixel Wide XGA panels the nearest resolution expressible in the EDID standard timing descriptor syntax is 1360765 pixels, typically leading to 3 pixel thin black bars. Specifying 1368 pixels as the screen width would yield an unnatural screen height of 769.5 pixels. 2ff7e9595c
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