2. HPM5301EVKLITE

2.1. Overview

HPM5301EVKLite is a development board based on Xianji’s entry-level high-performance MCU HPM5301. HPM5301EVKLite provides a USB Type-C interface for high-speed USB-OTG functionality, with onboard buttons and LEDs for convenient user interaction. It also provides an extension interface that is compatible with Raspberry Pi and a standard JTAG debugging interface.

hpm5301evklite

2.2. Console information printing

By default, UART0 is used for console printing. Connect UART0.TXD (J3.36) and UART0.RXD (J3.38) externally through the USB to serial port tool.

2.3. Boot Switch

  • The KEY&BOOT button controls the boot switch

    • By default, the board boots from flash

    • To enter ISP boot mode, follow these steps:

      1. Press reset

      2. Press key

      3. Release reset

      4. Release key

KEY

Description

OFF

Boot from Quad SPI NOR flash

ON

ISP

2.4. Button

Name

FUNCTIONS

RESET

Reset Button

KEY&BOOT

User Key & Boot switch

2.5. Pin Description

  • UART Pin: modbus_rtu sample - The UART0 used for debugger console or some functional testing using UART - The UART3 is used for some functional testing using UART, such as USB_CDC_ACM_UART, MODBUS_RTU etc.

Function

Position

Remark

UART3.TXD

J3[8]

UART3.RXD

J3[10]

UART0.TXD

J3[36]

UART0.RXD

J3[38]

UART3.break

J3[24]

generate uart break signal

  • SPI Pin:

Function

Position

SPI1.CSN

J3[24]

SPI1.SCLK

J3[23]

SPI1.MISO

J3[21]

SPI1.MOSI

J3[19]

  • I2C Pin:

Function

Position

I2C3.SCL

J3[28]

I2C3.SDA

J3[27]

  • ACMP Pin:

Function

Position

ACMP.CMP1.INN4

J3[13]

ACMP.COMP_1

J3[3]

  • ADC16 Pin:

Function

Position

ADC0.INA2

J3[26]

ADC1.INA1

J3[3]

  • TinyUF2 Pin:

    Note

    • PA9 connect GND, and press reset, board enter DFU mode, then PA9 connect 3.3V, drag app to U disk, will download app and enter app directly if successfully;

    • PA9 connect 3.3V, and press reset, board enter bootloader mode, if flash has the valid app, will directly enter app;

Function

Position

TinyUF2 Button

J3[32]

  • GPTMR Pin:

Function

Position

Remark

GPTMR0.CAPT_1

J3[3]

SENT decode input pin (idle low level)

GPTMR0.COMP_1

J3[5]

GPTMR0.COMP_3

J3[8]

BCLK of i2s emulation

GPTMR0.COMP_2

J3[26]

LRCK of i2s emulation

GPTMR1.COMP_1

J3[7]

MCLK of i2s emulation

GPTMR0.CAPT_2

J3[11]

SENT decode input pin (idle high level)

  • CS Pin of i2s emulation

Function

Position

Remark

PA31

J3[11]

the pin that controls the SPI slave CS

  • CLOCK REF Pin

Function

Position

PA09

J3[32]

  • ESP-HOSTED Pin

Function

Position

Note

PA09

J3[32]

RESET Pin

PB12

J3[27]

HANDSHAKE Pin

PB13

J3[28]

DATA_READY Pin

  • BROWNOUT Interrupt Indicator Pin

Function

Position

PB13

J3[28]