S32K知识库

讨论

S32K344 - FOC integrated with FreeRTOS This example demonstrates a 3-phase Permanent Magnet Synchronous Motor (PMSM) vector control (Field Oriented Control - FOC) drive with 2- shunt current sensing with and without position sensor integrated in FreeRTOS environment. This design serves as an example of motor control design using NXP S32K3 automotive family. Example was designed on S32K344 Brushless Direct Current and Permanent Magnet Synchronous Motor Control Development Kit. C-project based examples are part of MCSPTE1AK344 Development Kit Application Software. An innovative drivers set, Real-Time Drivers (RTD),are used to configure and control the MCU. It complies with Automotive-SPICE, ISO 26262, ISO 9001 and IATF 16949. Production-ready Automotive Math and Motor Control Library set provides essential building blocks for algorithm. FreeMASTER is used as useful run-time debugging tool. Application software contains: MCSPTE1AK344_PMSM_FOC_2Sh_ll_FreeRTOS - Low-level drivers of RTD and S32 Design Studio Configuration Tools (S32CT) are used to demonstrate non-AUTOSAR approach. Since the motor control structure of the example is similar to dual shunt example, detailed description of the example can be found in application note AN13767 and FreeRTOS related part in AN12881 .

S32K344 - FOC with dual shunt current measurement These examples demonstrate a 3-phase Permanent Magnet Synchronous Motor (PMSM) vector control (Field Oriented Control - FOC) drive with 2- shunt current sensing with and without position sensor. This design serves as an example of motor control design using NXP S32K3 automotive family. Examples were designed on S32K344 Brushless Direct Current and Permanent Magnet Synchronous Motor Control Development Kit. C-project based examples are part of MCSPTE1AK344 Development Kit Application Software. An innovative drivers set, Real-Time Drivers (RTD),are used to configure and control the MCU. It complies with Automotive-SPICE, ISO 26262, ISO 9001 and IATF 16949. Production-ready Automotive Math and Motor Control Library set provides essential building blocks for algorithm. FreeMASTER is used as useful run-time debugging tool. Application software contains: MCSPTE1AK344_PMSM_FOC_2Sh_ll - Low-level drivers of RTD and S32 Design Studio Configuration Tools (S32CT) are used to demonstrate non-AUTOSAR approach. Detailed description of the example can be found in application note AN13767. MCSPTE1AK344_PMSM_FOC_2Sh_as_tr - RTD, EB (Elektrobit) tresos Studio and S32 Design Studio are used to demonstrate AUTOSAR (AUTomotive Open System ARchitecture) approach. Detailed description of the example can be found in application note AN13884. MATLAB Simulink based project (Motor Control PMSM Example - s32k344_mc_pmsm_ebt) is build using Model-Based Design Toolbox (MBDT) and can be downloaded from NXP Model-Based Design Toolbox for S32K3xx - version 1.4.0 or newer releases. Example is described in article 3-Phase Sensorless PMSM Motor Control Kit with S32K344 using MBDT blocks.

******************************************************************************* The purpose of this demo application is to present a usage of the FlexCAN IP Driver for the S32K3xx MCU. The example uses FLEXCAN-0 for transmit & receive using following Message buffer :-- #define RX_MB_IDX_0 10U #define RX_MB_IDX 11U #define TX_MB_IDX 12U BAUDRATE : 500 KBPS ------------------------------------------------------------------------------ * Test HW: S32K3X2EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE micro * Target: internal_FLASH ********************************************************************************

******************************************************************************* The purpose of this demo application is to present a usage of the UART IP Driver for the S32K3xx MCU. The example uses LPUART6 for transmit & receive five bytes using the Interrupt. ------------------------------------------------------------------------------ * Test HW: S32K3X2EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE micro * Target: internal_FLASH ********************************************************************************

******************************************************************************* The purpose of this demo application is to present a usage of the LPI2C-0 as MASTER and LPI2C-1 Slave, using DMA for TX & RX for the S32K324 MCU. ------------------------------------------------------------------------------ * Test HW: S32K3X4EVB-Q257 * MCU: S32K324 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE micro * Target: internal_FLASH ********************************************************************************

******************************************************************************* The purpose of this demo application is to present a usage of the Hardfault handling using a script for the S32K3xx MCU. ------------------------------------------------------------------------------ * Test HW: S32K3X2EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE micro * Target: internal_FLASH ******************************************************************************** Change the attached script name from --> gdbinit.txt --> to --> .gdbinit This script applicable for CORTEX-M7 call stack view. Select the script at this location :-- Window --> Prefrences--> c/c++ --> Debug --> GDB Whenever the hardfault comes go to the Debugger console and enter word armex press enter. This will display the callstack at the time hardfault occur, and LR address contain the address where the HARDFAULT occur. Enter address in Disassembly window And press enter, this will take you to code location where the hardfault occur. Then you can review your code setting or code usage why this hardfault is coming.

******************************************************************************* The purpose of this demo application is to present a usage of the Bootloader Jump to Application. ------------------------------------------------------------------------------ * Test HW: S32K3X2EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE micro * Target: internal_FLASH ******************************************************************************** Jump is decided based on the boot_header, size we use to jump to the RESET handler:-- Cortex M-7 Interrupt vector table, RESET handler is 4 byte offset from starting of vector table :-- How to burn elf file of both application & bootloader code :--

******************************************************************************* The purpose of this demo application is to present a usage of the Hardfault handling for the S32K3xx MCU. ------------------------------------------------------------------------------ * Test HW: S32K3X2EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE micro * Target: internal_FLASH ******************************************************************************** An example on S32K312: Read an unimplemented memory (0x80000): volatile uint32_t read = *((uint32_t*)0x00080000); Hardfault will occur :-- Read Stack pointer when the HARDFAULT occur :-- SP = 0x2000ffd0 Go to this memory location , 0x2000ffd0 :-- When the program enters an exception handler, the stack frame is pushed onto the stack including the program counter value of the fault instruction. At exception entry, the processor saves R0 R3, R12, LR, PC and PSR on the stack. hardfault occurred at, 0x00400e48, this is how to decode the address :-- Now How to reach this address 0x00400e48, using disassembly window :-- This is same place in main() function :-- volatile uint32_t read = *((uint32_t*)0x00080000);

This example for S32K312 is based on this, example on S32K344 :-- https://community.nxp.com/t5/S32K-Knowledge-Base/Example-S32K344-PIT-BTCU-parallel-ADC-FIFO-DMA-DS3-5-RTD300/ta-p/1732444 ******************************************************************************* The purpose of this demo application is to present a usage of the ADC_SAR and BCTU IP Driver for the S32K3xx MCU. The example uses the PIT0 trigger to trigger BCTU conversion list to perform parallel conversions on ADC0/ADC1. Three ADC channels are selected to be converted on each ADC: ADC0: S8 , P0, S8 ADC1: S10, S13, S17 Converted results from BCTU FIFO are moved by DMA into result array. ADC channel S10 is connected to board's potentiometer. ------------------------------------------------------------------------------ * Test HW: S32K3X4EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE Micro * Target: internal_FLASH ******************************************************************************** Set PIT Freeze Enable :--- BCTU will be do the parallel conversion for channel mentioned in BCTU list :-- "NEW DATA DMA enable mask" :-- controls These bit field in MCR register "ADC target mask" :-- It controls "ADC_SEL " bit field in "Trigger Configuration (TRGCFG_0 - TRGCFG_71)" for single conversions you can enable only one instance so the possible values for target mask: 1 (0b001) ADC0 2 (0b010) ADC1 3 (0b100) ADC2| for list of conversions we can enable also parallel con version for example 3 (0b011) parallel conversion of ADC0 and ADC1 The trigger is configured as a list of parallel conversions ADC0, ADC1 in “Adc Target Mask”. List of ADC channels is defined in “BCTU List Items” while order is given by the “Adc Target Mask”: BctuListItems_0 is ADC0, BctuListItems_1 is ADC1 etc. Result :-- I connected VDD from board on adc_0_p0 (PTD1 : J412-1) and adc_1_p2 (PTE0 J412-13). Also POT value on S10 of ADC-1 & ADC-0-VREFH value coming correct & STABLE.

******************************************************************************* The purpose of this demo application is to present a usage of the ADC_SAR and BCTU IP Driver for the S32K3xx MCU. The example uses the PIT0 trigger to trigger BCTU conversion list to perform conversions on ADC1. ADC channels are selected to be converted on ADC-1: ADC1: P0, p1, p2, p3, p4, p5, p6, S10 Converted results from BCTU_ADC_DATA_REG are moved by DMA into result array. ADC channel S10 is connected to board's potentiometer. ------------------------------------------------------------------------------ * Test HW: S32K3X2EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE micro * Target: internal_FLASH ******************************************************************************** Set PIT Freeze Enable :--- All channels are for ADC-1 , in BCTU list :-- "NEW DATA DMA enable mask" :-- controls These bit field in MCR register "ADC target mask" :-- It controls "ADC_SEL " bit field in "Trigger Configuration (TRGCFG_0 - TRGCFG_71)" for single conversions you can enable only one instance so the possible values for target mask: 1 (0b001) ADC0 2 (0b010) ADC1 3 (0b100) ADC2| for list of conversions we can enable also parallel con version for example 3 (0b011) parallel conversion of ADC0 and ADC1 The trigger is configured as a list of parallel conversions ADC0, ADC1 in “Adc Target Mask”. List of ADC channels is defined in “BCTU List Items” while order is given by the “Adc Target Mask”: BctuListItems_0 is ADC0, BctuListItems_1 is ADC1 etc.

******************************************************************************* The purpose of this demo application is to present a usage of the LPI2C-0 as MASTER and LPI2C-1 SLave, using DMA for TX & RX for the S32K3xx MCU. ------------------------------------------------------------------------------ * Test HW: S32K3X2EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE micro * Target: internal_FLASH ********************************************************************************

******************************************************************************* The purpose of this demo application is to present a usage of the Printf Semihosting for the S32K3xx MCU. ------------------------------------------------------------------------------ * Test HW: S32K3X2EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE micro * Target: internal_FLASH ******************************************************************************** Create New project :-- Select Semi hosting library in project Properties :-- In Debugger setting :--- Include file :-- #include <stdio.h> Output :--

******************************************************************************* The purpose of this demo application is to present a usage of the SWT IP Driver for the S32K3xx MCU. ------------------------------------------------------------------------------ * Test HW: S32K3X2EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE micro * Target: internal_FLASH ******************************************************************************** With S32K312 device take care, HSE clock AIPS_SLOW_CLOCK ratio, kept 1:2 :-- The example we use to trigger the SWT once & go to while(1) loop. This will trigger the watchdog RESET. Then After RESET from SWT we will check at starting of main function, if RESET reason is SWT, then glow LED and wait in while(1) loop :--

******************************************************************************* The purpose of this demo application is to use pad keeping for PINS and enter the standby mode & before entering the standby mode update variables in Standby RAM memory with pin state. Once wake up from the standby mode update the pins values from the STANDBY RAM variables. S32K3xx MCU. ------------------------------------------------------------------------------ * Test HW: S32K3X4EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE Micro * Target: internal_FLASH ******************************************************************************** =============== How this DEMO works ========== Before entring standby :-- Before entering standby mode, i make BLUE LED high SW6 on board pressed to enter the standby mode. Wakeup from Standby :-- SW5 on board pressed to wakeup from standby After wakeup from Stand by:-- I glow Green LED Unglow the BLUE LED Wait for SW6 on board to be pressed to enter the standby mode. =============== Stand by RAM location =============== As noted, the Standby SRAM is allocated at the first 32 KB of the SRAM Memory. https://www.mouser.com/pdfDocs/S32K3MemoriesGuide.pdf =============== Pins used for PAD keeping =============== PTA30, PTA31, PTD14 =============== Switches used =============== Enter Standby mode, by pressing SW6 on Board EXIT Standby mode, by pressing SW5 on Board =============== Wakeup source, SW5 PTB26 =============== =============== WKPU[41] ---> WKPU_CH_45=============== Because First 4 WKPU are timers, so 41 + 4 = 45 =============== Linker file changed =============== Added Standby RAM memory & sections for standby RAM memory. Changes can be seen by comparing the original linker file =============== Startup file changed , startup_cm7.s =============== Added call to Initialise the Standby RAM Changes can be seen by comparing the original startup_cm7.s file ======================= How to verify if Standby RAM is working =============== 1> Declare two variables in file Wkup.c :-- __attribute__ ((section (".standby_ram_data"))) volatile int test_0_value ; __attribute__ ((section (".standby_ram_data"))) volatile int test_1_value ; 2> function set_pin_value() will be called before entering the standby mode. Initialise the values to these two variables inside function set_pin_value() in file Wkup.c. 3> Now burn the code inside the MCU using the PE micro debugger. Once code is burned do not run the code & disconnect the debugger. 4> Power OFF and power ON the S32K312 board. Now code is waiting to enter standby mode. Press switch SW6 MCU will enter standby mode & Blue LED glowing. Press switch SW5 MCU will wakeup from the standby mode. Code will Now code is waiting to enter standby mode 5> Now open your debugger configuration, and attach to running target. 6> Once connected click on the ELF file & press pause button. 7> In Debug window you can see the value of variables test_0_value & test_1_value same as initialised before entering the standby mode.

******************************************************************************* The purpose of this demo application is to place variables in DTCM memory for the S32K3xx MCU. ------------------------------------------------------------------------------ * Test HW: S32K3X4EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE Micro * Target: internal_FLASH ******************************************************************************** ZERO table : is for bss segment variables : contains RAM start & end address of BSS section which need to be initialized with ZER). Init_table : is for DATA segment variables : contains RAM start address of DATA section & START & end address of ROM address where the initialization values of the variables are stored. Startup file startup_cm7.s call function init_data_bss() . Inside this function uses these section :-- Variables declared :-- Linker file changes :-- startup_cm7.s file changes :-- MAP file :-- Debug window results :-- https://www.kernel.org/doc/html/v5.9/arm/tcm.html Due to being embedded inside the CPU, the TCM has a Harvard-architecture, so there is an ITCM (instruction TCM) and a DTCM (data TCM). The DTCM can not contain any instructions, but the ITCM can actually contain data. TCM is used for a few things: FIQ and other interrupt handlers that need deterministic timing and cannot wait for cache misses. Idle loops where all external RAM is set to self-refresh retention mode, so only on-chip RAM is accessible by the CPU and then we hang inside ITCM waiting for an interrupt. Other operations which implies shutting off or reconfiguring the external RAM controller.

******************************************************************************* The purpose of this demo application is to present a usage of the UART IP Driver for the S32K3xx MCU. The example uses LPUART6 for Freemaster uart Port. Freemaster project :-- S32K312_Freemaster_UART6\GUI_new\Project.pmpx ------------------------------------------------------------------------------ * Test HW: S32K3X2EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE micro * Target: internal_FLASH ********************************************************************************

******************************************************************************* The purpose of this demo application is to present a usage of the PORT & SIUL IP Driver for the S32K3xx MCU. The example uses SW5 for switch debouncing. ------------------------------------------------------------------------------ * Test HW: S32K3X2EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE micro * Target: internal_FLASH ********************************************************************************

******************************************************************************* The purpose of this demo application is to present a usage of the ADC_SAR IP Driver for the S32K3xx MCU. The example uses the PIT0 trigger to trigger conversions on ADC1. ADC channels are selected to be converted on ADC-1: ADC channel S10 is connected to board's potentiometer. #define ADC_SAR_USED_CH_BANDGAP 48U /* Internal Bandgap Channel */ #define ADC_SAR_USED_CH_POT_0 34U ------------------------------------------------------------------------------ * Test HW: S32K3X2EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE micro * Target: internal_FLASH ********************************************************************************

******************************************************************************* The purpose of this demo application is to present a usage of the FlexCAN IP Driver for the S32K3xx MCU. The example uses FLEXCAN-0 for transmit & receive Tusing following Message buffer :-- #define RX_MB_IDX_0 10U #define RX_MB_IDX 11U #define TX_MB_IDX 12U FIFO Receive Message from range :-- 0x01 to 0x16 BAUDRATE : 500 KBPS ------------------------------------------------------------------------------ * Test HW: S32K3X2EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE micro * Target: internal_FLASH ********************************************************************************

特色文章

The S32K3 family of 32-bit AEC-Q100 qualified MCUs combines a scalable family of Arm® Cortex-M7-based microcontrollers built on long-lasting features with a comprehensive suite of production-grade tools. S32K3 MCUs are included in NXP’s Product Longevity Program, guaranteeing a minimum of 15 years of assured supply. The S32K3 offers dedicated peripherals set for rapid motor control loop implementation: enhanced Modular IO Subsystem(eMIOS), Logic Control Unit (LCU), TRGMUX, BodyCross-triggering Unit (BCTU), Analog to Digital Converter(ADC), and Analog Comparator (CMP). The comprehensive motor control ecosystem based on Automotive Math and Motor Control Library(AMMCLib) set, FreeMASTER with Motor Control ApplicationTuning (MCAT) tool and Model-Based Design Toolbox (MBDT) helps to enable S32K3 MCU in wide range of motor control use cases. The table below points to the articles with more detailed description each of S32K3 motor control use cases, hardware description, links to appropriate application notes and their addendums, and software repositories. Device HW Article S32K344 MCSPTE1AK344 12 V development kit engineered for 3-phase PMSM and BLDC motor control applications FOC with dual shunt current measurement Article focuses on solution based Field Oriented Control (FOC) technique (typically used for 3-phase PMSM motors) with dual shunt current measurement and without any position sensor (sensorless). The Encoder sensor is supported by SW option, but missing on HW kit. The available example codes covers both ANSI-C and Matlab Simulink approaches and uses RTD drivers with high-level Autosar complient API or low-level non-Autosar API. FOC with single shunt current measurement Article focuses on solution based Field Oriented Control (FOC) technique (typically used for 3-phase PMSM motors) with single shunt current measurement and without any position sensor (sensorless). The Encoder sensor is supported by SW option, but missing on HW kit. The single shunt current measurement is advanced technique that allows decrese the cost of Bill of Material (BOM). The available example codes covers both ANSI-C and Matlab Simulink approaches and uses RTD drivers with high-level Autosar complient API or low-level non-Autosar API. FOC integrated with FreeRTOS Article focuses on integration of motor control software (based on FOC with dual shunt current measurement) and Real Time Operating System (FreeRTOS). The available example code is based ANSI-C code and uses RTD drivers with low-level non-Autosar API. Six-step commutation control. Article focuses on solution based Six-step commutation (6-step) technique (typically used for 3-phase BLDC motors) with Hall position sensor and without any position sensor (sensorless). The available example codes covers both ANSI-C and Matlab Simulink approaches and uses RTD drivers with low-level non-Autosar API. Note: the list of use cases cannot cover all combinations of MCU, current measurement scenario, control technique and sensor inputs, but should work as a base reference for most common configurations. This list is not final, please follow this acticle to be notified about updates with new use cases.

S32K知识库

S32K Knowledge Base

讨论

S32K344 - FOC integrated with FreeRTOS

S32K344 - FOC with dual shunt current measurement

Example S32K312 CAN Transmit & Receive Using MB Interrupt DS3.5 RTD300

Example S32K312 UART Transmit & Receive Using Interrupt DS3.5 RTD300

Example S32K324 I2C Transmit & Receive Using DMA DS3.5 RTD300

Example S32K312 HARDFAULT Interrupt Handling using a script DS3.5 RTD300

Example S32K312 PIT timer Toggle LED DS3.5 RTD300

Example S32K312 Bootloader to Application Jump DS3.5 RTD300

Example S32K312 HARDFAULT Handling Interrupt DS3.5 RTD300

Example S32K312 PIT BTCU parallel ADC FIFO DMA DS3.5 RTD300

Example S32K312 PIT BTCU ADC-1 BCTU_ADC_DATA_REG DMA DS3.5 RTD300

Example S32K312 I2C Transmit & Receive Using DMA DS3.5 RTD300

Example S32K312 Printf Semihosting DS3.5 RTD300

Example S32K312 SWT DS3.5 RTD300

Example S32K312 Standby mode & Standby RAM and PAD keeping DS3.5 RTD300

Example S32K312 placing variables in DCTM & code in ICTM DS3.5 RTD300

Example S32K312 UART Freemaster DS3.5 RTD300

Example S32K312 Switch Debouncing DS3.5 RTD300

Example S32K312 ADC DS3.5 RTD300

Example S32K312 CAN Transmit & Receive Using MB & FIFO DMA DS3.5 RTD300

S32K3 Motor control SW examples