RT-Thread TTGO T-Display-GD32 Test Report

Test Environment

Operating System Information

Source Code Link: https://github.com/Nuclei-Software/nuclei-sdk
Reference Installation Document: https://doc.nucleisys.com/nuclei_sdk/design/board/gd32vf103c_t_display.html
Download Links:

Hardware Information

TTGO T-Display-GD32
A USB to UART Debugger
JTAG Debugger
A Type-C Cable

Installation Steps

Environment Setup

Download and extract the toolchain and OpenOCD, then set up the toolchain directory:

wget https://download.nucleisys.com/upload/files/toolchain/gcc/nuclei_riscv_newlibc_prebuilt_linux64_nuclei-2024.tar.bz2
tar -xjvf nuclei_riscv_newlibc_prebuilt_linux64_nuclei-2024.tar.bz2
wget https://download.nucleisys.com/upload/files/toolchain/openocd/nuclei-openocd-2024.02.28-linux-x64.tgz
tar -xzvf nuclei-openocd-2024.02.28-linux-x64.tgz
export NUCLEI_TOOL_ROOT=$(pwd)

Download the SDK:

git clone https://github.com/Nuclei-Software/nuclei-sdk.git
cd nuclei-sdk
echo "NUCLEI_TOOL_ROOT=$(echo $NUCLEI_TOOL_ROOT)" > setup_config.sh
source setup.sh

Compiling the Code

Compile RT-Thread:

cd application/rtthread/msh
make SOC=gd32vf103 BOARD=gd32vf103c_t_display clean
make SOC=gd32vf103 BOARD=gd32vf103c_t_display all

Flashing the Image

Connect to the development board via your JTAG debugger. Note that the board should be powered on while flashing.

Make sure your debugger and OpenOCD binary is supported by the build system. For the former, consider editing relevant settings in ../../../SoC/gd32vf103/Board/gd32vf103c_t_display/openocd_gd32vf103.cfg to match your JTAG debugger. e.g. with Sipeed SLogic Combo 8 debugger at DAP-Link mode:

diff --git a/SoC/gd32vf103/Board/gd32vf103c_t_display/openocd_gd32vf103.cfg b/SoC/gd32vf103/Board/gd32vf103c_t_display/openocd_gd32vf103.cfg
index 019218da..66895b18 100644
--- a/SoC/gd32vf103/Board/gd32vf103c_t_display/openocd_gd32vf103.cfg
+++ b/SoC/gd32vf103/Board/gd32vf103c_t_display/openocd_gd32vf103.cfg
@@ -2,8 +2,8 @@ adapter speed     5000
 reset_config    srst_only
 adapter srst pulse_width 100
 
-adapter driver ftdi
-ftdi vid_pid 0x0403 0x6010
+adapter driver cmsis-dap
+cmsis-dap vid_pid 0xd6e7 0x3507
 
 ## bindto 0.0.0.0 can be used to cover all available interfaces.
 ## Uncomment bindto line to enable remote machine debug
@@ -25,14 +25,14 @@ if { [ info exists JTAGSN ] } {
     adapter serial $JTAGSN
 }
 
-ftdi layout_init 0x0008 0x001b
-ftdi layout_signal nSRST -oe 0x0020 -data 0x0020
+#ftdi layout_init 0x0008 0x001b
+#ftdi layout_signal nSRST -oe 0x0020 -data 0x0020
 # These signals are used for cJTAG escape sequence on initialization only
-ftdi layout_signal TCK -data 0x0001
-ftdi layout_signal TDI -data 0x0002
-ftdi layout_signal TDO -input 0x0004
-ftdi layout_signal TMS -data 0x0008
-ftdi layout_signal JTAG_SEL -data 0x0100 -oe 0x0100
+#ftdi layout_signal TCK -data 0x0001
+#ftdi layout_signal TDI -data 0x0002
+#ftdi layout_signal TDO -input 0x0004
+#ftdi layout_signal TMS -data 0x0008
+#ftdi layout_signal JTAG_SEL -data 0x0100 -oe 0x0100
 transport select jtag
 
 set _CHIPNAME riscv

Also adding an udev rule if necessary (refer to https://github.com/arduino/OpenOCD/blob/master/contrib/60-openocd.rules) For the latter, make sure your OpenOCD version is up to date with support for your debugger; a known usable version is at https://github.com/xpack-dev-tools/openocd-xpack/releases/tag/v0.12.0-4

When all set, flash the binary with:

make SOC=gd32vf103 BOARD=gd32vf103c_t_display upload

Still unable to connect to the board? Try re-flashing its firmware via its DFU bootloader.

Download the firmware from here: https://github.com/Xinyuan-LilyGO/LilyGO-T-DisplayGD32/raw/refs/heads/master/firmware/GD32V_CBT6_20200116.bin

Press the BOOT button while plugging in the board to enter DFU mode. lsusb should show something like:
Bus 001 Device 047: ID 28e9:0189 GDMicroelectronics GD32 DFU Bootloader (Longan Nano)
# "Longan Nano" is intended behavior

Flash the firmware with gd32-dfu-utils (https://github.com/riscv-mcu/gd32-dfu-utils):
sudo gd32-dfu-util -D GD32V_CBT6_20200116.bin

System Startup

Connect to the development board via the serial port.

Expected Results

The system should boot up normally, and information should be viewable via the onboard serial port.

Actual Results

The system booted up normally, and information are viewable via the onboard serial port.

Boot Log

Nuclei SDK Build Time: Feb 24 2025, 15:55:05
Download Mode: FLASHXIP
CPU Frequency 108000000 Hz

 \ | /
- RT -     Thread Operating System
 / | \     3.1.5 build Feb 24 2025
 2006 - 2020 Copyright by rt-thread team
Hello RT-Thread!
msh >help 
RT-Thread shell commands:
list_timer       - list timer in system
list_mailbox     - list mail box in system
list_sem         - list semaphore in system
list_thread      - list thread
version          - show RT-Thread version information
ps               - List threads in the system.
help             - RT-Thread shell help.
nsdk             - msh nuclei sdk demo

msh >list_timer
timer     periodic   timeout       flag
-------- ---------- ---------- -----------
tshell   0x00000000 0x00000000 deactivated
tidle    0x00000000 0x00000000 deactivated
main     0x0000000a 0x0000035d activated
current tick:0x00000354
msh >list_mailbox
mailbox  entry size suspend thread
-------- ----  ---- --------------
msh >ps
thread   pri  status      sp     stack size max used left tick  error
-------- ---  ------- ---------- ----------  ------  ---------- ---
tshell     6  ready   0x000000d8 0x00001000    10%   0x00000009 000
tidle      7  ready   0x00000078 0x00000200    23%   0x00000020 000
main       2  suspend 0x000000b8 0x00000400    17%   0x00000013 000
msh >nsdk
Hello Nuclei SDK!
msh >

Test Criteria

Successful: The actual result matches the expected result.

Failed: The actual result does not match the expected result.

Test Conclusion

Test successful.

System Version

Status

Last Update