hpm6750/controller_yy_board/README_en.md

HPM6750EVKMINI

Overview

The HPM6750 is a dual-core flashless MCU running 816Mhz. It has a 2MB continuous on-chip ram. Also, it provides various memory interfaces, including SDRAM, Quad SPI NOR Flash, SD/eMMC. It integrates rich audio and video interfaces, including LCD, pixel DMA, camera， and I2S audio interfaces.

Hardware

• HPM6750IVM MCU (816Mhz, 2MB OCRAM)
• Onboard Memory
  • 128Mb SDRAM
  • 64Mb Quad SPI NOR Flash
• Display & Camera
  • LCD connector
  • Camera (DVP)
• WiFi
  • RW007 over SPI
• USB
  • USB type C (USB 2.0 OTG) connector x2
• Audio
  • Mic
  • DAO
• Others
  • TF Slot
  • FT2232
  • Beeper
  • RGB LED
• Expansion port
  • ART-PI extension port

DIP Switch S1

• Bit 1 and 2 controls boot mode

bit[2:1]	Description
OFF, OFF	Boot from Quad SPI NOR flash
OFF, ON	Serial boot
ON, OFF	ISP

(lab_hpm6750_evkmini_board)=

Button

(lab_hpm6750_evkmini_board_buttons)=

Name	FUNCTIONS
PBUTN (S2)	Power Button, TinyUF2 Boot Button, GPIO Button
WBUTN (S3)	WAKE UP Button
RESET (S4)	Reset Button

Pin Description

• SPI Pin

Function	Position
SPI2.CSN	P1[24]
SPI2.SCLK	P1[23]
SPI2.MISO	P1[21]
SPI2.MOSI	P1[19]

• I2C Pin：

Function	Position
I2C0.SCL	P1[13]
I2C0.SDA	P1[15]

• UART for core1 debug console：

Function	Position	Remark
UART13.TXD	P1[8]
UART13.RXD	P1[10]
UART13.break	P1[24]	generate uart break signal

• ACMP Pin

Function	Position
CMP.INN6	P2[11]
CMP.COMP_1	P1[7]

• GPTMR Pin

Function	Position	Remark
GPTMR5.CAPT_1	P1[12]
GPTMR5.COMP_0	P1[31]	MCLK of i2s emulation
GPTMR5.COMP_1	P1[35]	LRCK of i2s emulation
GPTMR5.COMP_2	P2[38]	BLCK of i2s emulation

• ADC12 Pin

Function	Position
ADC12 Reference Voltage Setting	N/A
ADC0.VINP14	P1[33]

• ADC16 Pin

Function	Position
ADC16 Reference Voltage Setting	N/A
ADC3.INA2	P1[16]

• PWM Pin

Function	Position
PWM0.P4	P1[29]
PWM0.P5	P1[32]

• DAO interface

Function	Position
Speaker	J2

• I2S pin

Function	Position
I2S0.FCLK	P1[35]
I2S0.BCLK	P1[12]
I2S0.RXD1	P1[38]
I2S0.TXD1	P1[40]
GND	P1[39]

• Ethernet PPS Pin

Function	Pin	Position
ENET0.EVTO0	PF05	P1[38]
ENET0.EVTO1	PF06	P1[12]
ENET0.EVTO2	PF09	P1[35]
ENET0.EVTI0	PF00	P1[26]
ENET0.EVTI1	PF01	P1[27]
ENET0.EVTI2	PF02	P1[28]

• UART13 pin

The UART13 is used for core1 debug console or some functional testing using UART, such as uart_software_rx_idle, uart_rx_timeout, uart_software_lin, MICROROS_UART, USB_CDC_ACM_UART, MODBUS_RTU etc.

Function	Position
UART13.TXD	P1[8]
UART13.RXD	P1[10]

• TRGMUX pin for uart_software_rx_idle sample

Function	Position
TRGM2_P9(PD19)	P2[35]

• Motor Pin:

Refer to section HPM6750EVKMINI-TO-MOTOR Extension Board for configuration

• Tamper Pin

Function	Pin	Position	Mode
TAMP.08	PZ08	P1[10]	Active Mode
TAMP.09	PZ09	P1[8]	Active Mode
TAMP.10	PZ10	P1[22]	Passive Mode

• CS Pin of i2s emulation

Function	Position	Remark
PD25	P2[40]	the pin that controls the SPI slave CS

Known Issues

• Some samples may enter the trap handler during runtime, with a MCAUSE == 2 (instruction error). This is due to a flaw in ILM, as detailed in the Errata Manual E00001.

  • Solution: Change the ILM interface address in the link script to ILM_ SLV address.