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This example project will show user how to use and configure the basic functionalities of WKPU + GPT RTC API. ------------------------------------------------------------------------------ * Test HW: S32K3X4EVB-T172 (SCH-53148 REV B2) or S32K344MINI-EVB * 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 & RTC units for wake-up. The RTC is present in always ON domain, hence available in RUN mode as well as in STANDBY mode. The chip contains one instance of RTC (Real Time Clock) timer and API (Autonomous Periodic Interrupt) timer, where both can perform 32-bit comparisons. Both RTC and API timers can generate interrupts as well as wake-up from low power modes. The following figure highlights the path for RTC API wake-up. Please refer to Chapter 69.3.2 API functional description from the S32K3XX reference manual (Rev. 12) for further information. The routine waits for SW5 to be pressed, then: Turns off the green LED Switches CORE_CLK to Option C - Boot Standby mode (CORE_CLK @ 24 MHz). Initializes the ICU driver. Configures RTC_API channel (WKPU0) Initializes GPT module. Starts timer and sets RTC_API_TIME. Enters standby. After the period defined, RTC API generates an interruption and MCU wakes up. After wake-up, MCU resets and polls for SW5 to be pressed again. The RTC API value can be changed with RTC_API_TIME definition. This example is provided as is with no guarantees and no support.

********************************************************************************* * 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: * * 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

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.

This example project will show user how to use and configure the basic functionalities of ICU (WKPU) + CAN. ------------------------------------------------------------------------------ * 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 project configures both Can_43_FLEXCAN and CanIf modules for CAN communication, along with the ICU (WKPU) module for wake-up. Transmission is done via POLLING, while reception is configured via INTERRUPT. Tx MB is set to STD ID 123h. Acceptance mask is set to 0x0 (accept all IDs). CAN messages are sent using Can_43_FLEXCAN_Write() and received using the CanIf_RxIndication() callback. After CanIf_bRxFlag is set, an ACK message is sent back. If TJA1153 transceiver is used, macro TJA1153_EVB_TRCV must be used. If not, use TJA1043_EVB_TRCV for standard transceiver initialization (CAN0_STB & CAN0_EN pins set to HIGH). FlexCAN bitrate is calculated with: CAN bit timing calculator sheet. CAN classic (non-FD) 24Mhz clock 500Kbps 81.3% Sample Point Main routine: Waits for SW5 to be pressed, or for FlexCAN Rx interrupt. If SW5 is pressed, turns off green LED, disables FlexCAN and switches CORE_CLK to FIRC. It then configures PTA6 (CAN0_RX) for wakeup. If a CAN message is received (edge detect on PTA6), MCU wakes up and will enter main routine again. If a CAN frame is received, MCU will wake-up and wait for SW5 to be pressed again. Note: The first CAN frame may not be fully received since there will be some time for the MCU to warm up from STANDBY mode back to RUN mode, so the application may need to ignore the first CAN frame. Note 2: In order to test this example, another CAN node must be connected to CAN0_OUT. This example is provided as is with no guarantees and no support.

This example project will show user how to use and configure the basic functionalities of WKPU + RTC API. ------------------------------------------------------------------------------ * 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 & RTC units for wake-up. The RTC is present in always ON domain, hence available in RUN mode as well as in STANDBY mode. The chip contains one instance of RTC (Real Time Clock) timer and API (Autonomous Periodic Interrupt) timer, where both can perform 32-bit comparisons. Both RTC and API timers can generate interrupts as well as wake-up from low power modes. The following figure highlights the path for RTC API wake-up. Please refer to Chapter 69.3.2 API functional description from the S32K3XX reference manual (Rev. 12) for further information. 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 RTC. Enables RTC API and loads the APIVAL to 3000ms. Starts timer. Enters standby (or fast standby). After the period defined, RTC API generates an interruption and MCU wakes up. After wake-up, MCU resets and polls for SW5 to be pressed again. The RTC API 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.

* 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_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_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: * * 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:

/********************************************************************************************** * 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 **********************************************************************************************

* 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

S32K Knowledge Base

S32K Knowledge Base

Discussions

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