Example application showing basic use cases for the RTC module
The purpose of this demo application is to show you how to use the Real Time Clock module from the S32K118 MCU with the S32 SDK API.
The RTC is configured to generate an interrupt every 1 second toggling GREEN_LED. If the alarm button is pressed an alarm interrupt toggles the alarm RED_LED after 5 seconds.
To run the example you will need to have the following items:
The following boards are supported by this application
The following connections must be done to for this example application to work:
PIN FUNCTION | S32K118EVB-Q064 |
---|---|
RED_LED (PTD16) | RGB_RED - wired on the board |
GREEN_LED (PTD15) | RGB_GREEN - wired on the board |
BUTTON (PTD3) | SW2 - wired on the board |
After opening S32 Design Studio, go to File -> New S32DS Project From... and select rtc_alarm_s32k118. Then click on Finish.
The project should now be copied into you current workspace.
First go to Project Explorer View in S32 DS and select the current project(rtc_alarm_s32k118). Then go to Project and click on Generate Processor Expert Code
Wait for the code generation to be completed before continuing to the next step.
Select the configuration to be built FLASH (Debug_FLASH) or RAM (Debug_RAM) by left clicking on the downward arrow corresponding to the build button(. Wait for the build action to be completed before continuing to the next step.
Go to Run and select Debug Configurations. There will be four debug configurations for this project:
Configuration Name | Description |
---|---|
rtc_alarm_s32k118_debug_flash_pemicro | Debug the FLASH configuration using PEMicro debuggers |
rtc_alarm_s32k118_debug_flash_jlink | Debug the FLASH configuration using Segger Jlink debuggers |
rtc_alarm_s32k118_debug_ram_pemicro | Debug the RAM configuration using PEMicro debuggers |
rtc_alarm_s32k118_debug_ram_jlink | Debug the RAM configuration using Segger Jlink debuggers |
Select the desired debug configuration and click on Launch. Now the perspective will change to the Debug Perspective.
Use the controls to control the program flow.
If the example doesn't work, please Flash the Debug_FLASH configuration and enforce a power on reset of the board.
This is caused by the fact that the register which configures the RTC clock source can only be written once.