******************************************************************************* 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. Dinesh_Guleria_1-1709194211986.png   Dinesh_Guleria_0-1709193938046.png  

*******************************************************************************  The purpose of this demo application is to present a usage of the PIT timer to toggle LED.  ------------------------------------------------------------------------------ * 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 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 :-- Dinesh_Guleria_7-1707886997375.png   Dinesh_Guleria_8-1707887021604.png Dinesh_Guleria_0-1707887578380.png   Read Stack pointer when the HARDFAULT occur :-- SP = 0x2000ffd0 Dinesh_Guleria_0-1707886133591.png Go to this memory location , 0x2000ffd0 :-- Dinesh_Guleria_1-1707886185039.png   Dinesh_Guleria_2-1707886314115.png   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. Dinesh_Guleria_3-1707886498124.png hardfault occurred at, 0x00400e48, this is how to decode the address :-- Dinesh_Guleria_5-1707886661636.png   Dinesh_Guleria_2-1707886314115.png Now How to reach this address 0x00400e48, using disassembly window :-- This is same place in main() function :-- volatile uint32_t read = *((uint32_t*)0x00080000); Dinesh_Guleria_6-1707886853788.png  

S32K344 - Six-step commutation control These examples demonstrate a a 3-phase Brushless DC (BLDC) motor control drive using a Six-step commutation control with Hall position sensor and without any position sensor (sensorless). This design serves as an example of motor control design using NXP S32K3 automotive family. tomasfedor_0-1707467166083.png Examples were designed on S32K344 Brushless Direct Current and Permanent Magnet Synchronous Motor Control Development Kit.  tomasfedor_4-1707405434276.png 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_BLDC_6Step_hall_ll-. Hall sensor-based example. Detailed description of the example can be found in attachment to this article MCSPTE1AK344 - 6-step hall.pdf. MCSPTE1AK344_BLDC_6Step_sensorless_ll – Sensorless based example. Detailed description of the example can be found in attachment to this article MCSPTE1AK344_- 6-step sensorless.pdf.   MATLAB Simulink based project (Motor Control BLDC Example - s32k344_mc_bldc_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.

S32K344 - FOC with dual single current measurement These examples demonstrate a 3-phase Permanent Magnet Synchronous Motor (PMSM) vector control (Field Oriented Control - FOC) drive with 1- shunt current sensing with and without position sensor. This design serves as an example of motor control design using NXP S32K3 automotive family. tomasfedor_0-1707464005004.png   Examples were designed on S32K344 Brushless Direct Current and Permanent Magnet Synchronous Motor Control Development Kit.  tomasfedor_4-1707405434276.png 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_1Sh_ll - Low-level drivers of RTD and S32 Design Studio Configuration Tools (S32CT) are used to demonstrate non-AUTOSAR approach. Since the structure of the example is similar to dual shunt example, detailed description of the example can be found in application note AN13767 and MCSPTE1AK344 - single shunt addendum.pdf (which highlights changes for single shunt)  attached to this article . MCSPTE1AK344_PMSM_FOC_1Sh_as_tr - RTD, EB (Elektrobit) tresos Studio and S32 Design Studio are used to demonstrate AUTOSAR (AUTomotive Open System ARchitecture) approach. Since the structure of the example is similar to dual shunt example, detailed description of the example can be found in application note AN13884 and MCSPTE1AK344 - single shunt addendum.pdf (which highlights changes for single shunt)  attached to this article .   MATLAB Simulink based project (Motor Control PMSM Single Shunt Example - s32k344_mc_pmsm_1sh_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.

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. tomasfedor_0-1707464279910.png   Examples were designed on S32K344 Brushless Direct Current and Permanent Magnet Synchronous Motor Control Development Kit.  tomasfedor_4-1707405434276.png 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 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 :-- Dinesh_Guleria_0-1707031699387.png Select Semi hosting library in project Properties :-- Dinesh_Guleria_1-1707031800366.png In Debugger setting :--- Dinesh_Guleria_2-1707031851198.png Include file :-- #include <stdio.h> Output :-- Dinesh_Guleria_3-1707031893795.png    

*******************************************************************************  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 :-- Dinesh_Guleria_0-1706855323004.png   The example we use to trigger the SWT once & go to while(1) loop. This will trigger the watchdog RESET. Dinesh_Guleria_1-1706855535347.png 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  :-- Dinesh_Guleria_2-1706855589096.png  

******************************************************************************* 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 Dinesh_Guleria_1-1706609081807.png   Dinesh_Guleria_2-1706609164083.png   =============== Switches used =============== Dinesh_Guleria_0-1706609013348.png   Enter Standby mode, by pressing SW6 on Board EXIT Standby mode, by pressing SW5 on Board =============== Wakeup source, SW5 PTB26 =============== Dinesh_Guleria_3-1706609222511.png =============== WKPU[41]  ---> WKPU_CH_45=============== Because First 4 WKPU are timers, so 41 + 4 = 45 Dinesh_Guleria_0-1706610068634.png   =============== Linker file changed =============== Added Standby RAM memory & sections for standby RAM memory. Changes can be seen by comparing the original linker file  Dinesh_Guleria_4-1706609365318.png   Dinesh_Guleria_5-1706609374981.png Dinesh_Guleria_6-1706609386872.png   Dinesh_Guleria_7-1706609395948.png =============== 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 Dinesh_Guleria_8-1706609506315.png     ======================= 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 ; Dinesh_Guleria_0-1706795824611.png   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. Dinesh_Guleria_1-1706795851364.png   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. Dinesh_Guleria_2-1706795891040.png   6> Once connected click on the ELF file & press pause button. Dinesh_Guleria_3-1706795905290.png   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. Dinesh_Guleria_4-1706795934951.png   Dinesh_Guleria_0-1706799345237.png   Dinesh_Guleria_1-1706799364449.png  

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 :--- Dinesh_Guleria_0-1707202447324.png BCTU will be do the parallel conversion for channel mentioned in BCTU list :-- Dinesh_Guleria_3-1707204479195.png     Dinesh_Guleria_1-1707202600904.png   "NEW DATA DMA enable mask" :-- controls These bit field in MCR register Dinesh_Guleria_0-1707203759290.png     "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.   Dinesh_Guleria_3-1707204011310.png Dinesh_Guleria_4-1707204043898.png   Dinesh_Guleria_2-1707203974137.png 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. Dinesh_Guleria_1-1707330412160.png     Dinesh_Guleria_0-1707330375235.png =========================Using  FIFO-2 ================= Dinesh_Guleria_0-1732514437470.png FIFO-2 Trigger & LIST Index :-- Dinesh_Guleria_1-1732514506589.png Dinesh_Guleria_2-1732514539640.png ADC channel conversion :-- Dinesh_Guleria_3-1732514707504.png

*******************************************************************************  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 ******************************************************************************** Dinesh_Guleria_0-1705393743839.png   Dinesh_Guleria_1-1705393743832.png   Dinesh_Guleria_2-1705393779649.png   Dinesh_Guleria_3-1705393823743.png Dinesh_Guleria_4-1705393832494.png Dinesh_Guleria_5-1705393840809.png  

*******************************************************************************  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 ******************************************************************************** Dinesh_Guleria_0-1705393557215.png   Dinesh_Guleria_1-1705393570862.png  

*******************************************************************************  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 ******************************************************************************** Dinesh_Guleria_0-1705393272443.png   Dinesh_Guleria_1-1705393287863.png Dinesh_Guleria_2-1705393446888.png    

*******************************************************************************  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 1U #define TX_MB_IDX 0U. BAUDRATE : 500 KBPS  ------------------------------------------------------------------------------ * Test HW: S32K3X2EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE micro * Target: internal_FLASH ******************************************************************************** Dinesh_Guleria_0-1705387677471.png    

*******************************************************************************  The purpose of this demo application is to present a usage of the Siul2_Icu IP Driver for the S32K3xx MCU.  The example uses EIRQ-13 on PTB23 for interrupt..  ------------------------------------------------------------------------------ * Test HW: S32K3X2EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE micro * Target: internal_FLASH ******************************************************************************** Dinesh_Guleria_0-1705046325550.png   Dinesh_Guleria_1-1705046356504.png   Dinesh_Guleria_2-1705046384676.png    

*******************************************************************************  The purpose of this demo application is to present a usage of the  LPSPI IP Driver for the S32K3xx MCU.  The example uses LPSPI2 for transmit & receive Twelve bytes using the DMA. MOSI MISO connected on Hardware in loopback.  ------------------------------------------------------------------------------ * Test HW: S32K3X2EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE micro * Target: internal_FLASH ******************************************************************************** Dinesh_Guleria_0-1705047952901.png Dinesh_Guleria_1-1705047972487.png    

*******************************************************************************  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 DMA.  ------------------------------------------------------------------------------ * Test HW: S32K3X2EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE micro * Target: internal_FLASH ******************************************************************************** Dinesh_Guleria_0-1705044579692.png Dinesh_Guleria_1-1705044621995.png Dinesh_Guleria_2-1705044669141.png    

*******************************************************************************  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 :--- Dinesh_Guleria_0-1707202447324.png All channels are for ADC-1 , in BCTU list :-- Dinesh_Guleria_0-1707204286126.png   Dinesh_Guleria_0-1705043828719.png   "NEW DATA DMA enable mask" :-- controls These bit field in MCR register Dinesh_Guleria_0-1707203759290.png     "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.   Dinesh_Guleria_3-1707204011310.png Dinesh_Guleria_4-1707204043898.png   Dinesh_Guleria_2-1707203974137.png  

Customer may need more high performance via S32K3xx. How to optimization user's code?  As following have some suggestions:  1. Most of user code allocate to P-Flash and enable I-Cache 2. Allocate system stack to D-TCM and enable D-Cache 3. Execute code frequently allocate to I-TCM. E.g., ISRs etc. 4. OS' task stack allocate to D-TCM 5. vector table allocate to D-TCM Please note: 1. Due to enable D-Cache, other masters(E.g., DMA, HSE, another APP cores) access theses area of cacheable will be impact. So, theses area need to allocate to non-cacheable area. 2. If another master(E.g., DMA, HSE and another APP cores) access the D-TCM need to over back door. E.g., core1/DMA/HSE access core0' DTCM needed to over backdoor.  Information: S32K3' Coremark in RM, theses Coremark' value are from ARM. If used IAR/GHS etc and set compiler flag, then the Coremark value is very closely with RM. If used GCC, then the Coremark value will less than RM. BR Tomlin    

*******************************************************************************  The purpose of this demo application is to present a usage of   configure TRGMUX to select triggers for staring Normal/Injected chain conversion. Select PIT0_Ch0 as the hardware trigger source of ADC1_Ch34 & Ch48 via TRGMUX and two LEDs to show the trigger Sequence. ADC1_Ch34 is connected to board's potentiometer,Ch38 is bandgap channel.  ------------------------------------------------------------------------------ * Test HW: S32K3X4EVB-Q257 * MCU: S32K344 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: OpenSDA * Target: internal_FLASH ********************************************************************************