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MCUXpresso_MIMXRT1021xxxxx/boards/evkmimxrt1020/driver_examples/snvs/snvs_lp_srtc
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Yilin Sun 763d32be90
Updated SDK to v2.15.000 
Signed-off-by: Yilin Sun <imi415@imi.moe>
2024-03-15 22:23:36 +08:00
..
armgcc Updated SDK to v2.15.000 2024-03-15 22:23:36 +08:00
board.c Updated SDK to v2.15.000 2024-03-15 22:23:36 +08:00
board.h Updated SDK to v2.15.000 2024-03-15 22:23:36 +08:00
clock_config.c Updated to SDK v2.14.0 2023-08-31 23:30:31 +08:00
clock_config.h Updated to SDK v2.14.0 2023-08-31 23:30:31 +08:00
dcd.c Initial SDK v2.12.0 2022-08-23 23:00:33 +08:00
dcd.h Initial SDK v2.12.0 2022-08-23 23:00:33 +08:00
evkmimxrt1020_sdram_init.jlinkscript Initial SDK v2.12.0 2022-08-23 23:00:33 +08:00
pin_mux.c Initial SDK v2.12.0 2022-08-23 23:00:33 +08:00
pin_mux.h Initial SDK v2.12.0 2022-08-23 23:00:33 +08:00
readme.md Updated SDK to v2.15.000 2024-03-15 22:23:36 +08:00
snvs_lp_srtc_v3_14.xml Updated SDK to v2.15.000 2024-03-15 22:23:36 +08:00
snvs_lp_srtc.c Initial SDK v2.12.0 2022-08-23 23:00:33 +08:00

readme.md

Overview

The SNVS LP SRTC project is a simple demonstration program of the SDK SNVS LP driver. The test will set up secure RTC (SRTC) date and time to a predefined value and starts the counter, then the SRTC counter value is synchronized with non secure RTC (RTC). RTC then triggers an alarm after a user specified time period. The alarm will be set with reference to this predefined date and time.

SDK version

  • Version: 2.15.000

Toolchain supported

  • IAR embedded Workbench 9.40.1
  • Keil MDK 5.38.1
  • GCC ARM Embedded 12.2
  • MCUXpresso 11.8.0

Hardware requirements

  • Mini/micro USB cable
  • EVK-MIMXRT1020 board
  • Personal Computer

Board settings

No special settings are required.

Prepare the Demo

  1. Connect a USB cable between the host PC and the OpenSDA USB port on the target board.
  2. Open a serial terminal with the following settings:
    • 115200 baud rate
    • 8 data bits
    • No parity
    • One stop bit
    • No flow control
  3. Download the program to the target board.
  4. Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.

Running the demo

The log below shows the output of snvs example in the terminal window:

SNVS LP SRTC example:
RTC date and time has been synchronized with SRTC
Set up time to wake up an alarm.
Current datetime: 2014-12-25 19:00:00
Please input the number of second to wait for alarm and press enter
The second must be positive value
Alarm will occur at: 2014-12-25 19:00:16

 Alarm occurs !!!! Current datetime: 2014-12-25 19:00:16
Please input the number of second to wait for alarm and press enter
The second must be positive value

Note: To debug in qspiflash, following steps are needed:

  1. Select the flash target and compile.
  2. Set the SW8: 1 off 2 off 3 on 4 off, then power on the board and connect USB cable to J23.
  3. Start debugging in IDE.
    • Keil: Click "Download (F8)" to program the image to qspiflash first then clicking "Start/Stop Debug Session (Ctrl+F5)" to start debugging.