8. CCS Setup for J784S4¶

Code Composer Studio is an integrated development environment (IDE) that supports TI’s Micro controller and Embedded Processors portfolio. It provides useful tools to develop and debug embedded applications.

Please visit Code Composer Studio product (https://www.ti.com/tool/ccstudio) for more information.

Important

Below screen shots and examples show paths and instructions for Linux. The same applies for Windows except use Windows file/folder paths instead.
In Linux+RTOS mode, SPL/uboot bootloader loads the R5F, C7x, A72 binaries
- CCS is needed to debug the software on R5F, C7x (and A72 when in RTOS mode).
In RTOS only mode, CCS is needed to load and run the binaries on different CPU cores in the SoC.
The CCS emulation pack and CSP (Chip Support Package) are available in the SDK at location: ${PSDK_RTOS_PATH}/J784S4_CSP.

8.1. CPU names used in PSDK RTOS vs CCS¶

Below table shows the mapping of names in PSDK RTOS and CCS

CPU name in PSDK RTOS	CPU name in CCS
mcu1_0 / mcu1_1	MCU_Cortex_R5_0 / MCU_Cortex_R5_1
mcu2_0 / mcu2_1	MAIN_Cortex_R5_0_0 / MAIN_Cortex_R5_0_1
mcu3_0 / mcu3_1	MAIN_Cortex_R5_1_0 / MAIN_Cortex_R5_1_1
mcu4_0 / mcu4_1	MAIN_Cortex_R5_2_0 / MAIN_Cortex_R5_2_1
mpu1	CortexA72_0_0
c7x_1	C71x_0
c7x_2	C71x_1
c7x_3	C71x_2
c7x_4	C71x_3

8.2. Step 1: Install CCS¶

Install CCS v11.2 : CCS can be downloaded from https://www.ti.com/tool/download/CCSTUDIO/11.2.0.00007
CCS installation details are available on https://software-dl.ti.com/ccs/esd/documents/users_guide_11.2.0/ccs_installation.html
This release is tested on below CCS version 11.2.0.00007
During installation, there is a ‘Setup’ step where you can select components. Be sure to select: “TDAx Driver Assistance SoCs & Jacinto DRAx Infotainment SoCs” as shown below:

Fig. 8.1 CCS: Download Components¶
Here after we’ll be referring to the CCS installation directory as ${CCS_INSTALL_PATH}

In Linux, this will be
```
${HOME}/ti/ccsv1120/ccs
```
In Windows, this will be
```
C:\\ti\\ccsv1120\\ccs\
```

8.3. Step 2: Install CCS DPK and Emulation packs¶

Note

J784S4 DPK and emulation packs are included in the ${PSDK_RTOS_PATH}/J784S4_CSP

8.3.1. Step 2.1: Install CCS Patches for J784S4 SoC¶

Copy the contents of the folder ${PSDK_RTOS_PATH}/J784S4_CSP/ccs_patch/ccs_base to the ${CCS_INSTALL_PATH}/ccs_base folder.
Make sure that you replace the files when prompted.

8.3.2. Step 2.2: Install CCS emulation pack¶

Install the following file in ${PSDK_RTOS_PATH}/J784S4_CSP to ${CCS_INSTALL_PATH}.
- For Windows,
  - ti_emupack_setup_9.9.0.00009_dpk_0.9.0_win_64.exe
- For Linux,
  - ti_emupack_setup_9.9.0.00009_dpk_0.9.0_linux_x86_64.bin

Warning

When prompted for installation folder, you should give the installation folder as ${CCS_INSTALL_PATH}

Warning

For Linux, After CCS installion run the install drivers script:

Go to the install scripts directory.
cd ${CCS_INSTALL_PATH}/install_scripts
Run install script as sudo
sudo ./install_drivers.sh
sudo ./ti_permissions_install.sh
Restart your PC

8.4. Debugging without HLOS running on A72 (RTOS-only / baremetal)¶

Important

This section is applicable only if you are loading an RTOS only application. To debug using CCS when Linux/QNX runs A72, refer section Debugging with HLOS running on A72 (Linux / QNX).

8.4.1. Step 3: Setup CCS target configuration and GELs files¶

Create a CCS target config, you can name it J7AHP_EVM.ccxml.
- In Code Composer Studio, go to the File menu and select New -> Target Configuration File
- Name the Target Configuration file as J7AHP_EVM.ccxml and click Finish
- Select Connection as Texas Instruments XDS110 USB Debug Probe, if you are using on board debugger (J1 usb connector)
- Select Connection as Spectrum Digital XDS560V2 STM USB Emulator, if you are using Spectrum digital XDS560 USB debugger connected to JTAG Mipi connector (J23)
- Select the Board as Jacinto7AHP shown below
  
  Fig. 8.2 CCS: Target Configuration¶
Load the initialization script of the Cortex_M4F_0 core with the J7AHP Gels as shown below.
- Open the Advanced tab of the target configuration file J7AHP_EVM.ccxml
- Go to CORTEX_M4F_0 under SMS_TIFSM
- Set the initialization script
- Gel files can be found at below path
  **${CCS_INSTALL_PATH}/ccs_base/emulation/gel/K3J7AHP/J7AHP.gel
  Fig. 8.3 CCS: Target Configuration Initialization Script¶

8.4.2. Step 4: Load RTOS/baremetal application binaries thru CCS¶

Note

When using CCS boot flow, please configure EVM in NOBOOT mode ( see No Boot Mode ) for connecting and loading binaries via CCS.
NO BOOT Mode Switch Settings:-

SW11[1-8] = 1000 1000

SW7[1-8] = 0111 0000

The launch.js file below is responsible to load and run the SMS. It is also responsible to set the board configuration input for the SMS. The board configuration is passed by the PDK example ${PSDK_RTOS_PATH}/pdk_j784s4_{version}/packages/ti/drv/sciclient/examples/sciclient_ccs_init executing on the MCU R5F core. The default board configuration is available for reference at ${PSDK_RTOS_PATH}/pdk_j784s4_{version}/packages/ti/drv/sciclient/soc/V1/sciclient_defaultBoardcfg.c
All PDK and SDK examples require the SMS firmware to be executed.
launch.js file is also responsible to load the ${PSDK_RTOS_PATH}/pdk_j784s4_{version}/packages/ti/drv/sciclient/examples/sciserver_testapp which is used to service the RM and PM services on MCU1_0. Refer mcu1_0_app_with_sysfw PSDK RTOS developer note for details. The sciserver_testapp is a simple RTOS based application which runs the Sciserver used to service RM and PM requests from cores other than MCU1_0.
For applications developed and debugged on MCU1_0 application one can disable loading the Sciserver_testapp by setting the loadSciserverFlag to 0. Please do go through the mcu1_0_app_with_sysfw PSDK RTOS developer note for details on what libraries should be linked on the MCU1_0 application to run RM and PM services.

GEL initialization
- Open the launch.js script in an editor. Script is present in below path:
  ${PSDK_RTOS_PATH}/pdk_j784s4_{version}/packages/ti/drv/sciclient/tools/ccsLoadDmsc/j784s4/launch.js
- ${PSDK_RTOS_PATH} is the path to your PSDK RTOS installation, for example:
  /ti/ti-processor-sdk-rtos-j784s4-evm-xx_xx_xx_xx
- Edit the variable “pdkPath” with the absolute path of the pdk package, i.e ${PSDK_RTOS_PATH}/pdk_j784s4_{version}/packages
- Open Code Composer Studio and launch the Target Configuration previously setup
  Go to the View Target configurations and launch a target configuration. This is done by right clicking on it.
  
  Fig. 8.4 CCS: Launch CCS Target Configuration¶
- Open the scripting console in CCS - Go to the View menu and then select Scripting Console
- Load the launch.js script as shown below (modify path to match the path on your machine if necessary).:
  loadJSFile ("/ti/j7/workarea/pdk/packages/ti/drv/sciclient/tools/ccsLoadDmsc/j784s4/launch.js")
  Fig. 8.5 CCS: Launch script¶
- Wait till the script finishes. This step can take considerable time as it configures PLL etc. in the SOC via GEL files and configures DDR. This will connect to the MCU_Cortex_R5_0 core.
  
  Fig. 8.6 CCS: Scripting Console Output¶
  
  Fig. 8.7 CCS: Console Output¶
- After script completes execution you should see below in Debug window
  
  Fig. 8.8 CCS: Launch script Complete¶
Load and run the binaries in CCS. Debug as usual using CCS.
- Now you can connect to any core and load the corresponding application binaries.
  
  Fig. 8.9 CCS: Loading the demo application binary¶
- Go to the Run menu and then select Load -> Load Program
- In the Load Program window, browse to application binary you want to load.
  
  Fig. 8.10 CCS: Loading the demo application binary¶
- Go to the Run menu and then select Resume to start executing demo binary.

8.5. Debugging with HLOS running on A72 (Linux / QNX)¶

Important

This section is applicable only if you are loading a HLOS (Linux or QNX) application. To debug RTOS cores using CCS when not running Linux or QNX on A72, refer section Debugging without HLOS running on A72 (RTOS-only / baremetal).
CCS cannot be used to debug applications on the A72. For Linux, it is recommended to use gdb which comes preinstalled on the filesystem. For QNX, it is recommended to use QNX Momentics.

8.5.1. Step 3: Setup CCS target configuration¶

Install CCS, CCS emulation packs and the CSP as per Step 1: Install CCS.
Create a CCS target config, you can name it “J7AHP_NO_GEL.ccxml”.
- Select Connection as Texas Instruments XDS110 USB Debug Probe, if you are using on board debugger (J1 usb connector)
- Select Connection as Spectrum Digital XDS560V2 STM USB Emulator, if you are using Spectrum digital XDS560 USB debugger connected to JTAG Mipi connector (J23)
- Select the Board as Jacinto7AHP shown below
  
  Fig. 8.11 CCS: Target Configuration¶
- Remove the gel file path from CORTEX_M4F_0 under SMS_TIFSM if it is not blank already.

8.5.2. Step 4: Load RTOS core firmware symbols thru CCS¶

Load the debug version of the firmware binaries on the HLOS file system, and boot device.
Launch the target config file created

Fig. 8.12 CCS: Target Configuration launched¶
Now you can connect to the required non-A72 core (i.e R5, C7x_0 etc)

Fig. 8.13 CCS: Connect to non-A72 core¶
After connecting, you can load the symbols of the debug version of the application binary.

Fig. 8.14 CCS: Load symbols in the connected non-A72 core¶
Now you can put breakpoints wherever required and debug as usual.