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mockup-1

README.md

install the toolchain

Follow the steps below. As a documentation you can refer to

deb world

# install a gcc toolchain
sudo add-apt-repository ppa:team-gcc-arm-embedded/ppa
sudo apt update
sudo apt install gcc-arm-embedded

# install openocd
sudo apt install openocd

rpm world

# install a gcc toolchain
sudo dnf install arm-none-eabi-gcc-cs arm-none-eabi-newlib

# install arm-none-eabi-gdb from https://apps.fedoraproject.org/packages/
wget https://kojipkgs.fedoraproject.org//packages/arm-none-eabi-gdb/7.6.2/4.fc24/x86_64/arm-none-eabi-gdb-7.6.2-4.fc24.x86_64.rpm
sudo dnf install ./arm-none-eabi-gdb-7.6.2-4.fc24.x86_64.rpm

# install openocd
sudo dnf install openocd

openocd issues

Sometimes seen on linux: wrong pid of ST-LINK/V2 in openocd.

If openocd fails to detect your ST-LINK/V2 you can try to do this:

# if needed correct the wrong pid of the stlink-v2.0 interface
sudo sed -i "s/0x3748/0x374B/g" /usr/share/openocd/scripts/interface/stlink-v2.cfg
# if needed apply the udev rules and add yourself to the plugdev group
sudo cp /usr/local/share/openocd/contrib/60-openocd.rules /etc/udev/rules.d
sudo groupadd plugdev
sudo usermod -a -G plugdev louis

ST libraries

STM32CubeF4

Download X-CUBE-USB-AUDIO v1.24.0 from https://github.com/ada-sound/STM32CubeF4

Untar it in src/STM32CubeF4

X-CUBE-USB-AUDIO

Download X-CUBE-USB-AUDIO from https://my.st.com/content/my_st_com/en/products/embedded-software/mcu-mpu-embedded-software/stm32-embedded-software/stm32cube-expansion-packages/x-cube-usb-audio.html

Untar it in src/X-CUBE-USB-AUDIO

tree

Tree should look like

➤ tree -L 2 src/
.
├── (src, headers, md, ld)
├── STM32CubeF4
│   └── STM32Cube_FW_F4_V1.24.0
└── X-CUBE-USB-AUDIO
    └── STM32CubeExpansion_USBAudioStreaming_V1.0.0

build



flash


openocd -f board/stm32f4discovery.cfg -c "program bin/ada.bin exit 0x08000000"


debug


    

  • example with vscode and openocd
    • 



Install marus25 Cortex-debug extension v0.3.12


cf https://github.com/Marus/cortex-debug/wiki


Add a new debug configuration like


{
    "cwd": "path-to-mockup-1",
    "executable": "bin/ada.elf",
    "name": "mockup-1 debug OPENOCD",
    "request": "launch",
    "type": "cortex-debug",
    "servertype": "openocd",
    "configFiles": [ "board/stm32f4discovery.cfg"]
},



    

  • manually
    • 



In a terminal:


openocd -f board/stm32f4discovery.cfg


In another terminal:


arm-none-eabi-gdb
(gdb) target remote localhost:3333
(gdb) symbol-file bin/ada.elf
Breakpoint 1 at 0x8000546: file Src/main.c, line 74.
(gdb) 


    

  • vscode with Cortex-Debug plugin
    • 



cf https://marcelball.ca/projects/cortex-debug/


launch.json


{
    "type": "cortex-debug",
    "request": "launch",
    "servertype": "openocd",
    "cwd": "${workspaceRoot}",
    "executable": "./bin/stm32/diy-fda.elf",
    "name": "Debug (OpenOCD)",
    "device": "STM32F4x",
    "configFiles": [
        "board/stm32f4discovery.cfg"
    ]
}



wiring






STM32F4-Discovery
TAS3251EVM






I2C1 SDA PB9
J9-2  SDA




I2C1 SCL PB6
J9-1  SCL




I2S3 MCK PC7
J9-3  MCLK




I2S3 SCK PC10
J9-7  BCLK




I2S3 SD  PC12
J9-5  SDIN




I2S3 WS  PA4
J9-11 LRCLK





J9-13 MUTE





J9-14 AMP RESET










STM32F4-Discovery
ADA 10_2020 v0.1
Color






I2C1 SDA PB9
SDA
blue




I2C1 SCL PB6
SCL
violet




I2S3 MCK PC7
MCLK
grey




I2S3 SCK PC10
SCLK
white




I2S3 SD  PC12
SDIN
black




I2S3 WS  PA4
LRCK
brown




PC15
MUTE
green




PC14
RST
yellow










STM32F4-Discovery
ADA 10_2020 v0.1
Color






I2C1 SDA PB9
SDA
blue




I2C1 SCL PB6
SCL
violet




I2S2 MCK PC6
MCLK
grey




I2S2 SCK PB10
SCLK
white




I2S2 SD  PB15
SDIN
black




I2S2 WS  PB9
LRCK
brown




PC15
MUTE
green




PC14
RST
yellow






design


┌───────────────────────────────────────┐
│     APP                               │
│                                       │
└─┬────────┬────────────────────────────┘
  │        │
  │ ┌──────▼───────────┐  ┌─────────────┐
  │ │ ADA v0.1         │  │ TAS3251EVM  │
  │ └─┬─────┬──────────┘  └─────────────┘
  │   │     │
  │   │ ┌───▼───────────────────────────┐
  │   │ │ TAS3251 driver                │
  │   │ └───┬─────────┬────────┬────────┘
  │   │     │         │        │
  │ ┌─▼─────▼────┐ ┌──▼───┐ ┌──▼───┐
  │ │ USB        │ │ I2C  │ │ I2S  │
  │ └────────────┘ └──────┘ └──────┘
  │
┌─▼──────────────┐  ┌───────────────────┐
│   MMI          ├──► screen            │
└────────────────┘  └──────────────┬────┘
                                   │
┌──────────────────────────┐  ┌────▼────┐
│   IO and LL              │  │ SPI     │
└──────────────────────────┘  └─────────┘