S32K Knowledge Base

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******************************************************************************* 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 ******************************************************************************** Dinesh_Guleria_0-1709212705051.png Dinesh_Guleria_1-1709212743552.png Dinesh_Guleria_2-1709212752282.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 Interrupt. ------------------------------------------------------------------------------ * Test HW: S32K3X2EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.5 * SDK release: RTD 3.0.0 * Debugger: PE micro * Target: internal_FLASH ******************************************************************************** Dinesh_Guleria_0-1709212154702.png Dinesh_Guleria_1-1709212155113.png Dinesh_Guleria_2-1709212171004.png

******************************************************************************* 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 ******************************************************************************** Dinesh_Guleria_0-1709199728594.png Dinesh_Guleria_1-1709199772913.png

******************************************************************************* 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 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

******************************************************************************* 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

******************************************************************************* 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 :-- 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 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_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 ******************************************************************************** Dinesh_Guleria_0-1705388137796.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 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 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

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 ********************************************************************************

*************************************************************************************************************** Detailed Description: Example shows implementation of Analog Comparator ‘45.7.5 Windowed mode (#s 5A & 5B)’ of S32K1XXRM using S32 SDK API. The Comparator is configured to compare analog input 0(AIN0) with half the reference voltage generated with the internal DAC. PDB is used to generate pulse output which is used as sampling windows of CMP block via TRGMUX. PDB period is 5ms, the first 2.5ms WINDOW=1 and the next 2.5ms WINDOW=0. Pdb0PulseOut not only be TRGMUX to Cmp0Sample but also to TrgmuxOut0, so that we are able to observe WINDOW at TRGMUX_OUT0(PTA1) pin. Based on the input from CMP0_IN0 (1kHz external triangle wave) the LEDs light by the following rules: 1) Vin < DAC voltage : RED on, GREEN off 2) Vin > DAC voltage : RED off, GREEN on 3) Unknown state : RED on, GREEN on EVB connection: Signal Function pin S32K144EVB-Q100 WINDOW TRGMUX_OUT0 PTA1 J5.5 2.5ms WINDOW=1 and 2.5ms WINDOW=0 Plus input CMP0_IN0 PTA0 J5.7 Need to connect external 1khz triangle wave COUTA CMP0_OUT PTE3 J1.16 square wave PTC1 PTC1 J5.13 If there is no external triangle wave, a square wave(PTC1) is generated and output to CMP0 (PTA1) * * ------------------------------------------------------------------------------------------------------------------------ * Test HW: S32K144EVB-Q100 * MCU: S32K144UAVLL 0N47T * Target: Debug_FLASH * Compiler: S32DS3.4 * SDK release: S32SDK_S32K1XX_RTM_4.0.3 * Debugger: PEMicro OpenSDA * ------------------------------------------------------------------------------------------------------------------------ Revision History: Ver Date Author Description of Changes 1.0 Nov-9-2023 Robin Shen Initial version, based on cmp_dac_s32k144 and pdb_periodic_interrupt_s32k144 ***************************************************************************************************************

S32K Knowledge Base

S32K Knowledge Base

Discussions

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

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