Armv8 (coretex-a53) debugging based on openocd and ft2232h

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openocd Full name Open On-ChipDebugger, It is a free and open debugging tool and programming tool on chip , It has been released to 0.11.0 edition , At present, most mainstream debuggers support , You can see Open On-Chip Debugger:OpenOCD User’s Guide.

One 、Openocd The configuration process

version:0.11.0 link

1. Windows Lower installation OpenOCD
   Download address ：https://github.com/xpack-dev-tools/openocd-xpack/releases

This is third-party compiled software , After decompression, configure the environment variables .

2. Prepare the configuration file

• FT2232H Debuger Adapter The configuration file , Generally placed on ..\scripts\interface\ftdi\ Catalog
• Target board profile , Generally placed on ..\scripts\target\ Catalog .

During actual debugging, it is necessary to refer to the existing Debuger Adapter And the target board configuration file to write the configuration file for the company board and debugger .

3. Script using Openocd Connect to the target chip for testing
   After debugging , Writable makefile file , take download Set as pseudo target , After writing , You can enter make download One click download program .

Two 、 FTDI FT2232H Connect the test

Hardware ：

• The debugger ： Xinlai HUMMINGBIRD Debugger Kit V2

2.1 UsbDriverTool install

openocd By calling libusb Drive connection and control FT2232H Of , So install the appropriate driver for the hardware device . Through here UsbDriverTool Tool execution , Official website installation website ：https://visualgdb.com/UsbDriverTool/

Then decompress it , I unzipped it directly to the desktop .

double-click UsbDriverTool.exe,

There are two USB Serial Converter A/B, Is a debugger connection PC Automatically recognized after , Change this USB Serial Converter A The drive of the equipment is libusb:

After successful installation , The corresponding driver name will appear after the device name

2.2 Connect ft2232h

Get into \xpack-openocd-0.11.0-3\bin Under the path , newly build ft2232h.cfg, Enter the following code ：

adapter driver ftdi
# VID and PID 
ftdi vid_pid 0x0403 0x6010
transport select jtag
# TCK frequency
adapter speed 1000


# ftdi_layout_init [data] [direction]
#  Appoint FTDI GPIO The initial data and direction of ,16bit Data width .
#  Parameters data in 1 High level ,0 Indicates low level , And the parameters direction in 1 Indicative output ,0 Indicates input （ Note that this is different from the normal setting ）
ftdi layout_init 0x0018 0x05fb
# This means: ADBUS(bit7~bit0)
# Low output data = 0x18 // 0001 1000
# Low direction = 0xfb // 1111 1011
# High output data = 0x00 // 0000 1000
# High direction = 0x05 // 0000 0101

Then open under this folder cmd , Input openocd -f ft2232h.cfg:

You can see that you have successfully connected to the debugger , However, I have not connected the target board nor defined it target, So there are some warnings .

3、 ... and 、 Connect Coretx-A53

Hardware ：

• Processor core ：Coretx-A53

Waiting for DuPont line , Now I have no DuPont line , There's no way to connect , I will update it after the test ！