DS213_ECHO

This is a customized DS213 APP firmware with Roll Mode support (and other features). Based on the official app firmware v1.27, and fixed some bugs.

What is Roll Mode?

On an oscilloscope, roll mode is a method of displaying acquired waveform data without waiting for the complete waveform record. For example, if a sweep was 10 divisions long with a rate of one second per division, and roll mode wasn’t available, it would take 10 seconds to fill the waveform record. But using roll mode, the oscilloscope will immediately begin displaying results rather than waiting the full 10 seconds.

Roll Mode Video Demo

Toolchain

The firmware is built on GNU Arm Embedded Toolchain. Both Windows and Linux are tested.

On Windows

arm-none-eabi-gcc --version
arm-none-eabi-gcc.exe (GNU Tools for Arm Embedded Processors 9-2019-q4-major) 9.
2.1 20191025 (release) [ARM/arm-9-branch revision 277599]
Copyright (C) 2019 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Windows setup

One time dependency setup

Install arm-none-eabi-gcc --version download from. Probably latest version will work but tested on arm-none-eabi-gcc --version arm-none-eabi-gcc.exe (GNU Arm Embedded Toolchain 10.3-2021.10) 10.3.1 20210824 (release)`
Install make 2.1. Open Powershell as admin (must be admin) 2.2. Run choco install make. After that make can be used without admin
Fully close and reopen vscode and terminal that you gonna use for building

Build project on Windows

[Optional] You can increment app version in file Program\APP\Main.c around line 86 u8 APP_VERSION[12] = { "v20.11.27" };
Open Powershell terminal.
Navigate to the project folder e.g. with command cd C:\GitHub\DS213_ECHO inside which Makefile is located
Run command make. This will create new build folder with build files
Only file you need is build/DS213_ECHO.hex
Then follow firmware update instructions as usual but use your new .hex file

On Linux (Ubuntu 18.04):

arm-none-eabi-gcc --version
arm-none-eabi-gcc (15:6.3.1+svn253039-1build1) 6.3.1 20170620
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

FLASH Layout

The MCU of DS213 is STM32F103VET6, with 512kB(0x80000) FLASH. The FLASH layout is as follows:

Name	Start	Length
DFU	0x08000000	0x08000
APP	0x08008000	0x68000
FPGA	0x08070000	0x0D800
LOGO	0x0807D800	8310

(Legacy) Firmware Update Procedure

Full update procedure in case a speedy version below doesn't work

Enter DS213 DFU mode (turn power on while holding K1 Play/Pause button)
Copy FPGA_CFG.ADR to DFU disk, Then the DFU disk will restart.
Copy STMU_213_018.bin to DFU disk, Then the DFU disk will restart.
Copy DS213_ECHO_v20.12.25.hex to DFU disk.
Restart DS213.

There are no address information in the .bin file, so we put a .ADR file to DFU disk to setup the firmware start addressThat's what step 2 did. However, the .hex file contains address information, we don't need a .ADR file. If your DS213 is using the official latest firmware, the FPGA is latest 018 version, you can omit step 2 and 3.

Speedy Firmware Update Procedure

Prep: Have file explorer open and DS213_ECHO.hex in view and USB connected
Build: make
Enter DFU: Hold K1 Play/Pause button and turn off and on
Drag DS213_ECHO.hex to newly opened window
Off & On at the moment copy window disappears (no need to wait any longer)

Hardware and Trivia

STM32F103VET6 32 bit ARM Cortex-M3 72MHz
No FPU
512KB FLASH, 64KB RAM
8 MB memory for waveform data and images
Internal 1000 mAh Lithium battery
2.8" Full Color TFT LCD
400x240 resolution
360x200 area for waveform (other area taken by menus)
12x8 grid | dx: 30px/div | dy: 25px/div

oelison/DS213_ECHO