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README.txt |
README ====== This directory holds the port to the NXP RDDRONE-BMS772 board with S32K144 MCU. A NuttX compatible smart battery application for RDDRONE-BMS772 is also available. It contains additional drivers and example software to use most features of the battery management system. This application is currently published in a separate repository, but (parts) may eventually be upstreamed to Apache NuttX: https://github.com/NXPHoverGames/RDDRONE-BMS772 Contents ======== o Status o Serial Console o LEDs o Thread-Aware Debugging with Eclipse o Configurations Status ====== 2020-11-02: Configuration first published in separate GitHub repository. Tested with the aforementioned BMS application. 2022-05-25: Basic board configuration prepared for upstreaming to Apache NuttX. Serial Console ============== By default, the serial console will be provided on the DCD-LZ UART (available on the 7-pin DCD-LZ debug connector J19): DCD-LZ UART RX PTC6 (LPUART1_RX) DCD-LZ UART TX PTC7 (LPUART1_TX) LEDs and Buttons ================ LEDs ---- The RDDRONE-BMS772 has one RGB LED: RedLED PTD16 (FTM0 CH1) GreenLED PTB13 (FTM0 CH1) BlueLED PTD15 (FTM0 CH0) An output of '0' illuminates the LED. If CONFIG_ARCH_LEDS is not defined, then the user can control the LEDs in any way. The following definitions are used to access individual RGB components (see rddrone-bms772.h): GPIO_LED_R GPIO_LED_G GPIO_LED_B The RGB components could, alternatively, be controlled through PWM using the common RGB LED driver. If CONFIG_ARCH_LEDs is defined, then NuttX will control the LEDs on board the RDDRONE-BMS772. The following definitions describe how NuttX controls the LEDs: ==========================================+========+========+========= RED GREEN BLUE ==========================================+========+========+========= LED_STARTED NuttX has been started OFF OFF OFF LED_HEAPALLOCATE Heap has been allocated OFF OFF ON LED_IRQSENABLED Interrupts enabled OFF OFF ON LED_STACKCREATED Idle stack created OFF ON OFF LED_INIRQ In an interrupt (no change) LED_SIGNAL In a signal handler (no change) LED_ASSERTION An assertion failed (no change) LED_PANIC The system has crashed FLASH OFF OFF LED_IDLE S32K144 in sleep mode (no change) ==========================================+========+========+========= Thread-Aware Debugging with Eclipse =================================== Thread-aware debugging is possible with openocd-nuttx ( https://github.com/sony/openocd-nuttx ) and was tested together with the Eclipse-based S32 Design Studio for Arm: https://www.nxp.com/design/software/development-software/s32-design-studio-ide/s32-design-studio-for-arm:S32DS-ARM NOTE: This method was last tested with NuttX 8.2 and S32DS for Arm 2018.R1. It may not work anymore with recent releases of NuttX and/or S32DS. 1. NuttX should be build with debug symbols enabled. 2. Build OpenOCD as described here (using the same parameters as well): https://micro.ros.org/docs/tutorials/old/debugging/ 3. A s32k144.cfg file is available in the scripts/ folder. Start OpenOCD with the following command (adapt the path info): /usr/local/bin/openocd -f /usr/share/openocd/scripts/interface/jlink.cfg \ -f boards/s32k1xx/rddrone-bms772/scripts/s32k144.cfg -c init -c "reset halt" 4. Setup a GDB debug session in Eclipse. The resulting debug window shows the NuttX threads. The full stack details can be viewed. Configurations ============== Common Information ------------------ Each RDDRONE-BMS772 configuration is maintained in a sub-directory and can be selected as follows: tools/configure.sh rddrone-bms772:<subdir> Where <subdir> is one of the sub-directories listed in the next paragraph. NOTES (common for all configurations): 1. This configuration uses the mconf-based configuration tool. To change this configuration using that tool, you should: a. Build and install the kconfig-mconf tool. See nuttx/README.txt. Also see additional README.txt files in the NuttX tools repository. b. Execute 'make menuconfig' in nuttx/ in order to start the reconfiguration process. 2. Unless otherwise stated, the serial console used is LPUART1 at 115,200 8N1. This corresponds to the OpenSDA VCOM port. Configuration Sub-directories ----------------------------- nsh: --- Configures the NuttShell (nsh) located at apps/examples/nsh. Support for builtin applications is enabled, but in the base configuration the only application selected is the "Hello, World!" example.