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Andes ADP-XC7K AE350

Overview

ADP-XC7K AE350 board is for AndeShape AE350 platform on ADP-XC7K series FPGA-based development boards.

ADP-XC7K series are FPGA-based development and prototyping boards for evaluation of variety of AndesCore processors and AndeShape SoC platform IPs. AE350 is a RISC-V platform which can integrate AndesCore CPUs with a collection of fundamental peripheral IPs.

1st figure shows the green PCB is ADP-XC7K160 and 2nd figure shows the red PCB is ADP-XC7K410.

ADP-XC7K160 ADP-XC7K410

More information can be found on ADP-XC7K160/410 1 and AndeShape AE350 2 websites.

Hardware

The ADP-XC7K AE350 platform integrates 1 ~ 4 cores 32/64-bit 60MHz RISC-V CPUs, DSP, 1GB RAM, Cache, SPI flash memory, ethernet controller and other peripherals.

The ADP-XC7K AE350 platform provides following hardware components:

  • 1 ~ 4 cores 32/64-bit 60MHz AndeStar v5 RISC-V CPUs

  • 1GB on-board SDRAM

  • 2MB SPI flash memory (1MB can be used for XIP)

  • UART

  • I2C

  • SPI

  • GPIO

  • PWM

  • DMA

  • 10/100 Ethernet RJ45 port

  • LCD module connector

  • 16KB I2C EEPROM

  • SD memory card slot

  • MIC-in, Line-in, and Line-out with AC97 audio codec

Supported Features

The adp_xc7k_ae350 board configuration supports the following hardware features:

Interface

Controller

Driver/Component

PLIC

on-chip

interrupt_controller

RISC-V Machine Timer

on-chip

timer

GPIO

on-chip

gpio

UART

on-chip

serial

Other hardware features are not supported yet.

Connections and IOs

The ADP-XC7K AE350 platform has 1 GPIO controller. It providing 32 bits of IO. It is responsible for pin input/output, pull-up, etc.

Mapping from GPIO controller to the ADP-XC7K board pins:

GPIO controller

Usage / Board pins

Push Buttons

GPIO.0

SW1

GPIO.1

SW2

GPIO.2

SW3

GPIO.3

SW4

GPIO.4

SW5

GPIO.5

SW6

GPIO.6

SW7

7-Segment LED1

GPIO.16

7SEG1.A

GPIO.17

7SEG1.B

GPIO.18

7SEG1.C

GPIO.19

7SEG1.D

GPIO.20

7SEG1.E

GPIO.21

7SEG1.F

GPIO.22

7SEG1.G

GPIO.23

7SEG1.DP

7-Segment LED2

GPIO.24

7SEG2.A

GPIO.25

7SEG2.B

GPIO.26

7SEG2.C

GPIO.27

7SEG2.D

GPIO.28

7SEG2.E

GPIO.29

7SEG2.F

GPIO.30

7SEG2.G

GPIO.31

7SEG2.DP

GPIO pins

GPIO.7

IDE_CON1.4

GPIO.8

IDE_CON1.6

GPIO.9

IDE_CON1.8

GPIO.10

IDE_CON1.10

GPIO.11

IDE_CON1.11

GPIO.12

IDE_CON1.12

GPIO.13

IDE_CON1.13

GPIO.14

IDE_CON1.14

GPIO.15

IDE_CON1.15

Other peripheral mapping are listed below:

Peripherals

Usage / Board pins

SPI_1

internal connected to SPI Flash

SPI_2_CS

IDE_CON1.37

SPI_2_MOSI

IDE_CON1.36

SPI_2_MISO

IDE_CON1.38

SPI_2_SCLK

IDE_CON1.35

I2C_SDA

J27.1

I2C_SCL

J27.2

System Clock

The ADP-XC7K AE350 platform has 60MHz core clock.

Serial Port

The ADP-XC7K AE350 platform has 2 UARTs. The Zephyr console output is by default assigned to UART2 and the default settings are 115200 8N1.

Programming and debugging

For debugging zephyr applications or burning them into a flash, you will need to connect Andes ICE from host computer to ADP-XC7K board and execute the Andes ICE management software, ICEman, on this host computer.

Connecting Andes ICE (AICE)

AICE is used for flashing and debugging the board. Please connect AICE to both ADP-XC7K board and the host computer as shown in the figure.

Connect AICE

More information can be found on AICE-MINI+ 3, AICE-MICRO 4 website

Building

You can build applications in the usual way. Here is an example for the Hello World application.

west build -b adp_xc7k_ae350

Flashing

Before flashing, you have to download ICEman (ice.zip) from the Andes Development Kit 5. If you want to use XIP mode (CONFIG_XIP=y), you also need to download the flash burner (flash.zip).

At first, you should run ICEman when flashing and debugging program.

# Enable execute file permission of ICEman
chmod a+x ./ICEman

# Running the ICEman server
sudo ./ICEman -Z v5

Note

To run ICEman commands as a normal user, you will need to install the 70-ndsusb-v1.rules udev rules file (usually by placing it in /etc/udev/rules.d, then unplugging and plugging the AICE adapter in again via USB.).

If CONFIG_XIP=n, you can load the program (zephyr.elf) into RAM directly and execute it.

# Check the ICEman server is running
# Load the program into RAM and execute it
riscv64-zephyr-elf-gdb zephyr/zephyr.elf
(gdb) target remote :1111
(gdb) monitor reset halt
(gdb) load
(gdb) quit

If CONFIG_XIP=y, you need to burn the program (zephyr.bin) into flash memory and execute it.

# Check the ICEman server is running
# Burn the program into flash and execute it
<FLASH>/bin/target_burn_frontend \
    -P 4444 --unlock --verify --image=zephyr/zephyr.bin \
    --algorithm-bin=<FLASH>/target_bin/target_SPI_v5_[32|64].bin

# Note:
#   1. Assume the flash burner is downloaded to <FLASH> directory
#   2. For algorithm-bin file, use target_SPI_v5_32.bin in RV32 platform and
#      use target_SPI_v5_64.bin in RV64 platform

Open a serial terminal with the following settings:

  • Speed: 115200

  • Data: 8 bits

  • Parity: None

  • Stop bits: 1

you should see the following message in the terminal:

***** Booting Zephyr OS v2.4.0 *****
Hello World! adp_xc7k_ae350

Debugging

# Check the ICEman server is running
# Load and debug program
./riscv64-zephyr-elf-gdb zephyr/zephyr.elf
(gdb) target remote :1111
(gdb) monitor reset halt
(gdb) load

If CONFIG_XIP=y, please follow the flashing section to burn the program into flash memory first. Then, you can use GDB to debug program by above commands but do NOT execute load command since the program has been placed in the flash memory.

References

1

http://www.andestech.com/en/products-solutions/andeshape-platforms/adp-xc7k160-410/

2

http://www.andestech.com/en/products-solutions/andeshape-platforms/ae350-axi-based-platform-pre-integrated-with-n25f-nx25f-a25-ax25/

3

http://www.andestech.com/en/products-solutions/andeshape-platforms/aice-mini-plus/

4

http://www.andestech.com/en/products-solutions/andeshape-platforms/aice-micro/

5

https://github.com/andestech/Andes-Development-Kit/releases