103 lines
2.9 KiB
ReStructuredText
103 lines
2.9 KiB
ReStructuredText
===============
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i.MX RT1020 EVK
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===============
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`i.MX RT1020 EVK <https://www.nxp.com/design/development-boards/i-mx-evaluation-and-development-boards/i-mx-rt1020-evaluation-kit:MIMXRT1020-EVK>`_
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is an evaluation kit by NXP company. This kit uses the i.MX RT1020 crossover MCU in LQFP144 package with ARM Cortex M7 core.
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Features
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========
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- Processor
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- MIMXRT1021DAG5A processor
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- Memory
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- 256 Mb SDRAM memory
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- 64 Mb QSPI Flash
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- TF socket for SD card
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- Display and Audio
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- Audio CODEC
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- 4-pole audio headphone jack
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- External speaker connection
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- Microphone
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- Connectivity
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- Micro USB host and OTG connectors
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- Ethernet (10/100T) connector
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- CAN transceivers
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- Arduino® interface
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Serial Console
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==============
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The EVK default console is on LPUART1, which is multiplexed onto
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the debug port (either OpenSDA or SEGGER JLink).
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It runs at 115200,n,8,1.
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LEDs and Buttons
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================
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LEDs
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----
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There is one user accessible LED status indicator located on the 1020-EVK,
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USERLED. The function of the LEDs include:
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=== ============ ======
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Pin Description Colour
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=== ============ ======
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D3 Power Supply Green
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D5 User LED Green
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D15 Reset LED Red
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=== ============ ======
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This LED is not used by the board port unless CONFIG_ARCH_LEDS is
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defined. In that case, the usage by the board port is defined in
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include/board.h and src/imxrt_autoleds.c. The LED is used to encode
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OS-related events as documented in board.h
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================ ======================= =====
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SYMBOL Meaning LED
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================ ======================= =====
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LED_STARTED NuttX has been started OFF
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LED_HEAPALLOCATE Heap has been allocated OFF
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LED_IRQSENABLED Interrupts enabled OFF
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LED_STACKCREATED Idle stack created ON
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LED_INIRQ In an interrupt N/C
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LED_SIGNAL In a signal handler N/C
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LED_ASSERTION An assertion failed N/C
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LED_PANIC The system has crashed FLASH
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================ ======================= =====
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Thus if the LED is statically on, NuttX has successfully booted and is,
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apparently, running normally. If the LED is flashing at approximately
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2Hz, then a fatal error has been detected and the system has halted.
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Buttons
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-------
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This IMXRT board has three external buttons
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=== ============== ========================
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SW2 (IRQ88, ONOFF) Not on a GPIO, No muxing
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SW3 (IRQ88, POR) Not on a GPIO, No muxing
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SW4 (IRQ88, USER) Wakeup, GPIO5-0
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=== ============== ========================
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Configurations
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==============
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netnsh
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------
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This configuration is similar to the nsh configuration except that is
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has networking enabled, both IPv4 and IPv6. This NSH configuration is
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focused on network-related testing.
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nsh
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---
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Configures the NuttShell (nsh) located at examples/nsh. This NSH
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configuration is focused on low level, command-line driver testing.
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Built-in applications are supported, but none are enabled. This
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configuration does not support a network.
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