S32K Knowledge Base

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This example project will show user how to use and configure the basic functionalities of WKPU + LPCMP. ------------------------------------------------------------------------------ * Test HW: S32K3X4EVB-T172 (SCH-53148 REV B2) * MCU: S32K344 * IDE: S32DS3.5 & S32DS3.6 * SDK release: RTD 6.0.0 * Debugger: PE Micro * Target: internal_FLASH ------------------------------------------------------------------------------ This example routine configures the WKPU & LPCMP units for wake-up. The S32K3XX's LPCMP can operate in trigger mode in both standby and run mode to continuously scan the input channels. RTC-API and LPCMP must be configured before entering into standby mode as per below shown figure: See chapters 61.1.5 Comparator Trigger Mode & 61.1.6 Interaction with RTC API to cause wakeup from the S32K3XXRM (Rev. 12) for further information. The register configurations before entering Standby mode for LPCMP trigger mode operation is the following: Configure RTC.APIVAL to set the period of the round robin operation. Execute standby mode entry. The routine waits for SW5 to be pressed, then turns off the green LED, and enters Wkpu_EnterStandby() function which: Switches CORE_CLK to FIRC. Initializes the WKPU instance. Configures WKPU2 & WKPU42 (PTB19). Initializes and enables interrupt for LPCMP. Initializes RTC and sets the timer value (in RTCC - APIVAL) to 100ms. Starts timer. Enters standby (or fast standby). While in standby, PTA0/1/2 are active; if a voltage higher than 2.5V is detected (ICU LPCMP DAC Voltage Level = 127), or SW6 is pressed MCU will wake-up. After wake-up, MCU resets and polls for SW5 to be pressed again. The RTC timer value can be changed with RTC_PERIOD_DELAY_MS(x) macro defined in Wkpu.h. This example is provided as is with no guarantees and no support.

The script performs secure‑recovery and mass‑erase initialization of locked S32K142 MCUs by keeping the device in system reset (PTA5 RESET_B held low) from the moment of power‑on. Before running the script, connect PTA5 (RESET_B) to VSS, power‑cycle the MCU, and start the script. The script first reads the MDM‑AP Status register to determine the MCU’s security and flash‑ready state, then prompts the user to initiate a mass‑erase operation through the MDM‑AP Control register. After the mass erase completes, the user is instructed to release RESET_B (remove PTA5 from VSS), after which the debugger re‑attaches and displays the flash configuration area at address 0x400. Finally, the script prompts whether the MCU should be reprogrammed from an ELF file, and if confirmed, programs flash, loads the project, and executes it.

This example project will show user how to use and configure the basic functionalities of ICU (WKPU) + DIO (GPIO). ------------------------------------------------------------------------------ * Test HW: S32K3X4EVB-T172 (SCH-53148 REV B2) * MCU: S32K344 * IDE: S32DS3.5 & S32DS v3.6.x * SDK release: RTD 6.0.0 * Debugger: PE Micro * Target: internal_FLASH ------------------------------------------------------------------------------ This example routine configures the WKPU unit for a GPIO interrupt wake-up. This is the simplest WKPU example. Pin PTB19 (WKPU42) is configured for wake-up. The routine waits for SW5 to be pressed, then turns off the green LED, and enters Wkpu_EnterStandby() function which: Turns off green LED Switch system clock to FIRC (Option C - Boot Standby mode @24MHz). Initialize the Icu driver. Configures WKPU42 (PTB19). Enters standby. After pressing SW6, MCU wakes up, resets and polls for SW5 to be pressed again. This example is provided as is with no guarantees and no support.

**************************************************************************************************** * Detailed Description: * * SW triggered conversion of ADC0 internal channel 50 (ANAMUX_OUT). * ANAMUX is used for internal supply monitoring. * Supply to be monitored is configured using DCMRWF1 register. * * PIT is configured to generate interrupt each second then ADC conversion for selected supply is * SW started and measured result is printed to the UART interface * * ------------------------------------------------------------------------------------------------ * Test HW: S32K3x4EVB-T172 Rev B * MCU: S32K344_172HDQFP * IDE: S32DS 3.6.0 * RTD release: S32K3_S32M27x Real-Time Drivers ASR R21-11 Version 6.0.0 * Debugger: Lauterbach, P&Emicro * Target: Internal_FLASH * Serial: 115200, 8N1 ***************************************************************************************************/ Terminal output

******************************************************************************************** * Test HW: S32K312 EVB-Q172 * MCU: S32K312 * Compiler: S32DS3.6.2 * SDK release: RTD 6.0.0 QLP04 * Debugger: PE Micro * Target: Internal_FLASH ******************************************************************************************** The objective of this demo application is to generate an interrupt and wakeup using the single GPIO. In this application, USR_SW5 (PTB26) in S32K312_Q172 EVB is used both as an interrupt source in RUN mode and as a wake‑up source from STANDBY mode. Thanks & regards, Krishnakumar V

********************************************************************************* * Detailed Description: * Updated the example lwip_FreeRTOS_s32K389 to enable pinging the lwIP stack * from the command window * *ping 192.168.0.209 * *Pinging 192.168.0.209 with 32 bytes of data: *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 * *Ping statistics for 192.168.0.209: * Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), *Approximate round trip times in milli-seconds: * Minimum = 1ms, Maximum = 2ms, Average = 1ms * * * EVB: * - All jumpers in default positions, except J848, J822, J1136 - disconnected * to enable an external debugger. * * Configuration: * - Updated pin configuration * - Modified PLLAUX + dividers * - Updated GMAC0 clocks * - Platform: added GMAC0 interrupts * - IP address set to 192.168.0.209 and enabled UDP_ECHO, etc. * - Eth_43_GMAC: configured for RGMII 1G, EthIndex = 0 * - Added DIO * * main.c * - Updated only the header * device.c * - Added RTD workaround for DCMRWF* registers * (copied from example S32K389_gptp_ds, SW32K3xx_M7_gPTP_1.1.0_CD01_D2602) * test.c * - Commented out the code that shuts down the TCP/IP stack after its predefined timeout * - Added LED task * * ----------------------------------------------------------------------------- * Test HW: S32K389EVB-Q437 SCH-94080 REV C, 700-94080 REV A * MCU: S32K389 * Debugger: Lauterbach Trace32 * Target: internal_FLASH * EVB connection: GMAC0 <-> Media converter TE-1402 (1G, Follower) <-> * <-> USB-to-Ethernet adapter <-> Laptop DELL, Windows 11

**************************************************************************************************** * Detailed Description: * * The Flexio I2C driver provides an optional configuration parameter for reducing the number of DMA interrupts * required for transmission that are configured with DMA Optimize option. Instead of being interrupted after each * end of transmitting or receiving a data block or data amount larger than 13 bytes, only one interrupt will be raised to * stop frame and inform to user that the transmission was done. * * More details can be found in "RTD_I2C_UM.pdf", the chapter 3.6.3 FLEXIO DMA Optimize. * ------------------------------------------------------------------------------------------------ * Test HW: S32K3x4EVB-T172 SCH-53148 REV B2 * MCU: S32K344_172HDQFP * IDE: S32DS 3.6.0 * RTD release: S32K3_S32M27x Real-Time Drivers ASR R21-11 Version 6.0.0 * Debugger: Lauterbach, P&Emicro * Target: Internal_FLASH * Connections： * FXIO_D10_SCL (J4.19) - LPI2C1_SCL (J3.24) * FXIO_D11_SDA (J4.17) - LPI2C1_SDA (J3.27) ***************************************************************************************************/ Test Result:

* Detailed Description: * Updated the example lwip_FreeRTOS_s32K358 to enable pinging the lwIP stack from the command window * *ping 192.168.0.209 * *Pinging 192.168.0.209 with 32 bytes of data: *Reply from 192.168.0.209: bytes=32 time=2ms TTL=255 *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 * *Ping statistics for 192.168.0.209: * Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), *Approximate round trip times in milli-seconds: * Minimum = 1ms, Maximum = 2ms, Average = 1ms * * * S32K3X8EVB-Q289: * - All jumpers in default positions except: jumper J685 2-3 * * TJA1103-SDBR: * mode RGMII-ID (both TXC/RXC) * CONFIG 0,1 1-2 * CONFIG 2,4 2-3 * CONFIG 3 open * * Configuration: * - Updated pin configuration * - Updated GMAC clocks * - IP address set to 192.168.0.209 and enabled UDP_ECHO, etc. * - Eth_43_GMAC: configured for RGMII 100M * - Added DIO * * main.c * - Updated only the header * * device.c * - Added RTD workaround for DCMRWF* registers * * test.c * - Commented out the code that shuts down the TCP/IP stack after its predefined timeout * - Added LED task * * ------------------------------------------------------------------------------------------------ * Test HW: S32K3X8EVB-Q289 SCH-54870 REV C, 700-54870 REV A * MCU: S32K358 * Debugger: Lauterbach Trace32 * Target: internal_FLASH * EVB connection: SABRE <-> TJA1103-SDBR <-> Media converter TE-1402 (100M, Follower) <-> * USB-to-Ethernet adapter <-> Laptop DELL, Windows 11

* Detailed Description: * Updated the example lwip_FreeRTOS_s32K344 to enable pinging the lwIP stack from the command window * *ping 192.168.0.209 * *Pinging 192.168.0.209 with 32 bytes of data: *Reply from 192.168.0.209: bytes=32 time=2ms TTL=255 *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 * *Ping statistics for 192.168.0.209: * Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), *Approximate round trip times in milli-seconds: * Minimum = 1ms, Maximum = 2ms, Average = 1ms * * * EVB: * - All jumpers in default positions. * * Configuration: * - Updated pin configuration * - Modified FXOSC, PLLAUX + dividers * - Platform: added EMAC_0_IRQn interrupt * - IP address set to 192.168.0.209 and enabled UDP_ECHO, etc. * - Added DIO * * main.c * - Updated only the header * device.c * - No updates * test.c * - Commented out the code that shuts down the TCP/IP stack after its predefined timeout * - Added LED task * * ------------------------------------------------------------------------------------------------ * Test HW: MR-CANHUBK344 * MCU: S32K344 * Debugger: Lauterbach Trace32 * Target: internal_FLASH * EVB connection: EMAC <-> RDDRONE-T1ADAPT <-> USB-to-Ethernet adapter <-> Laptop DELL, Windows 11

* Detailed Description: * Updated the example lwip_FreeRTOS_s32K358 to enable pinging the lwIP stack from the command window * *ping 192.168.0.209 * *Pinging 192.168.0.209 with 32 bytes of data: *Reply from 192.168.0.209: bytes=32 time=2ms TTL=255 *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 * *Ping statistics for 192.168.0.209: * Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), *Approximate round trip times in milli-seconds: * Minimum = 1ms, Maximum = 2ms, Average = 1ms * * * S32K3X8EVB-Q289: * - All jumpers in default positions except: jumper J685 2-3 * * TJA1120-SDBR: * mode RGMII-ID (both TXC/RXC), Master, Autonomous, XTAL * CONFIG 3 2-3 * CONFIG 5 1-2 * CONFIG 4,6 open * * Configuration: * - Updated pin configuration * - Updated GMAC clocks * - IP address set to 192.168.0.209 and enabled UDP_ECHO, etc. * - Eth_43_GMAC: configured for RGMII 1G * - Added DIO * * main.c * - Updated only the header * * device.c * - Added RTD workaround for DCMRWF* registers * * test.c * - Commented out the code that shuts down the TCP/IP stack after its predefined timeout * - Added LED task * * ------------------------------------------------------------------------------------------------ * Test HW: S32K3X8EVB-Q289 SCH-54870 REV C, 700-54870 REV A * MCU: S32K358 * Debugger: Lauterbach Trace32 * Target: internal_FLASH * EVB connection: SABRE <-> TJA1120-SDBR <-> Media converter TE-1402 (1G, Follower) <-> * USB-to-Ethernet adapter <-> Laptop DELL, Windows 11

* Detailed Description: * Updated the example lwip_FreeRTOS_s32K388 to enable pinging the lwIP stack * from the command window * *ping 192.168.0.209 * *Pinging 192.168.0.209 with 32 bytes of data: *Reply from 192.168.0.209: bytes=32 time=2ms TTL=255 *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 * *Ping statistics for 192.168.0.209: * Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), *Approximate round trip times in milli-seconds: * Minimum = 1ms, Maximum = 2ms, Average = 1ms * * * EVB: * - All jumpers in default positions except: jumper J361 must be closed. * - Soldering rework required to connect an external debugger. * See S32K388EVB-Q289_HW_User Manual_A3.pdf, chapter 15 (Errata). * * Configuration: * - Updated pin configuration * - Modified PLLAUX + dividers * - Updated GMACx clocks * - Platform: added GMAC0 interrupts * - IP address set to 192.168.0.209 and enabled UDP_ECHO, etc. * - Eth_43_GMAC: configured for RGMII 1G, EthIndex = 0 * - Added DIO * * main.c * - Updated only the header * device.c * - Added RTD workaround for DCMRWF* registers * (copied from example S32K388_gptp_ds, S32K3xx gPTP Stack 1.0.0) * test.c * - Commented out the code that shuts down the TCP/IP stack after its predefined timeout * - Added LED task * * --------------------------------------------------------------------------------------- * Test HW: S32K388EVB-Q289 SCH-88925 REV A, 700-88925 REV X1 * MCU: S32K388 * Debugger: Lauterbach Trace32 * Target: internal_FLASH * EVB connection: GMAC0 <-> Media converter TE-1402 (1G, Follower) <-> USB-to-Ethernet adapter <-> Laptop DELL, Windows 11

* Detailed Description: * Updated the example lwip_FreeRTOS_s32K389 to enable pinging the lwIP stack from the command window * *ping 192.168.0.209 * *Pinging 192.168.0.209 with 32 bytes of data: *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 *Reply from 192.168.0.209: bytes=32 time=1ms TTL=255 * *Ping statistics for 192.168.0.209: * Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), *Approximate round trip times in milli-seconds: * Minimum = 1ms, Maximum = 2ms, Average = 1ms * * * EVB: * - All jumpers in default positions, except J848, J822, J1136 - disconnected to enable an external debugger. * * TJA1103-SDBR: * mode rev-RMII * CONFIG 0,1 1-2 * CONFIG 2,4 2-3 * CONFIG 3 1-2 * * Configuration: * - Updated pin configuration * - IP address set to 192.168.0.209 and enabled UDP_ECHO, etc. * - Eth_43_GMAC: configured for RGMII 1G, EthIndex = 0 * - Added DIO * * main.c * - Updated only the header * test.c * - Commented out the code that shuts down the TCP/IP stack after its predefined timeout * - Added LED task * * ------------------------------------------------------------------------------------------------ * Test HW: S32K389EVB-Q437 SCH-94080 REV C, 700-94080 REV A * MCU: S32K389 * Debugger: Lauterbach Trace32 * Target: internal_FLASH * EVB connection: GMAC1_SABRE <-> TJA1103-SDBR (rev-RMII mode) <-> RDDRONE-T1ADAPT <-> USB-to-Ethernet adapter <-> Laptop DELL, Windows 11

**************************************************************************************************** * Detailed Description: * This example uses BIST and EMCEM drivers from SPD 1.0.6. * BIST and EMCEM can be enabled or disabled using macros. * * BIST runs immediately after a power-on reset and triggers an ST_DONE reset. * EMCEM initialization is only possible after a system reset without an attached debugger. * Therefore, wait loops (controlled by macros) are used to manage execution flow * for both BIST and EMCEM. * * Fault injection is selected via macros: * - FAULT_EMCEM_DCM_NCF_1_AD_EDC_ERR_OUT → handled via NMI * - FAULT_EMCEM_DCM_NCF_2_PRAM1_MULTI_ERR → handled via BusFault (if INJECT_EIM) and FCCU alarm * - FAULT_EMCEM_DCM_NCF_2_ITCM_MULTI_ERR → handled via BusFault (if INJECT_EIM) and FCCU alarm * - FAULT_EMCEM_DCM_NCF_3_PFO_CODE_ERR → FCCU alarm → (if TIMEOUT_PFO_CODE_ERR) → NMI * - FAULT_EMCEM_DCM_NCF_5_STCU_NCF → handled via FCCU alarm * - FAULT_EMCEM_DCM_NCF_7_SW_NCF_0 → FOSU Destructive reset * (read resetReason after reset, MCU_FCCU_FTR_RESET). * FOSU triggers as no FCCU reaction is configured for NCF_7 * while FCCU is enabled and reactions are configured for other faults. * * ------------------------------------------------------------------------------------------------ * MCU: S32K3x4EVB-Q257 * Fsys: 160 MHz PLL with 16 MHz crystal reference * Debugger: Lauterbach Trace32, S32DS IDE 3.6.5 * Target: internal_FLASH ****************************************************************************************************

/********************************************************************************************** * File main.c * Owner Daniel Martynek * Version 1.0 * Date May-12-2026 * Classification General Business Information ********************************************************************************************** * Detailed Description: * The code enables the data cache, reads a value from DFlash to load it into the cache, * then uses the LMEM interface to inspect and directly overwrite the corresponding cache line. * Finally, it reads the same address again through the CPU, which returns the modified value * from the cache instead of the original data stored in DFlash. * * In this simple setup, where only the data cache is enabled, the code executes from PFlash, * and the accessed data is located in DFlas — the cache line is unlikely to be re-evaluated. * Therefore, the CPU may consistently return the modified value - this behavior is not guaranteed. * ------------------------------------------------------------------------------------- * MCU: S32K142 * Fsys: 48MHz, FIRC * RTD: S32K1_RTD_3_0_0_QLP06_D2603_ASR_REL_4_7_REV_0000_20260320 * Debugger: Lauterbach Trace32 * Target: Internal_FLASH **********************************************************************************************

S32K Knowledge Base

S32K Knowledge Base

Discussions

[RTD600 IP] S32K3X4EVB-T172 LPCMP Wake-up

Lauterbach_Script_For_MDM_AP_Mass_erase_S32K142

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