topic Re: ventilator and hardware in 8-bit Microcontrollers

ventilator and hardware

jagannathang — Fri, 03 May 2019 11:52:18 GMT

we are using the DRM127 FOR VENTILATOR AND HARDWARE. WE need the below help urgently.

1. How to program freescale board & interface the required peripherals?
2. Which IDE to use & SDK for the same if available for this module?
3. Which software to use for Medical_ventilator.mcp provide by you in Medical_ventilator_SW.zip?

Re: ventilator and hardware

vicentegomez — Mon, 06 May 2019 15:41:51 GMT

The design uses an MCF51MM device and has the BDM connector (j13) so you can use a Universal multilink and or cyclone

The IDE is codewarrior 11

Please also check the following link

https://www.nxp.com/support/developer-resources/evaluation-and-development-boards/tower-development-boards/mcu-and-processor-modules/coldfire-coldfire-plus-mcu-modules/coldfire-mcf51mm-medical-development-tower-system-module:TWR-MCF51MM?lang=en&lang_cd=en&

Just be aware that the DRM127 is a little bit old.

Have a good day

Re: ventilator and hardware

er_vishaladitya — Thu, 09 May 2019 09:40:27 GMT

Hi Vicente,

Thanks for your quick response!

The Freescale board has onboard USB connector J16 near J1(PowerSource), can it be used to directly connect to PC & program using Keil IDE with any linker/driver of Freescale if available?

E.G: nrfjprog by SEGGER jlink is there to directly program/debug nordic semiconductor boards ; stlink utility is provided by STMicroelectronics (Something like these if available).

If not then please confirm else we have to buy a Universal multilink

Re: ventilator and hardware

vicentegomez — Thu, 09 May 2019 17:33:40 GMT

The DRM127 does not have a integrate OSBDM, so you need to buy one external programmer, my recommendation is the use the Universal multilink

there are other cheaper programmer but I have not used, so I can not tell you if those are good or not.

Also you can make your own programmer on the P&E web page you can find the firmware and hardware that you need to create your own OSBDM

Re: ventilator and hardware

celsoken — Thu, 26 Mar 2020 14:39:33 GMT

Hi,

I don't know where you're located but here in Brazil we're facing serious logistics problems. If it's your case you could look for USBDM devices. These are commonly available and they're an open-source open-hardware evolution of OSBDM.

Also I'm not sure you'll be able to find the specific coldfire processor.

Due to Coronavirus, I'm currently working 18/7 on a task force for an AMBU based emergency respiratory device focused on emerging countries supplies. If you are interested, pls let me know.

Good luck,

Celso

Re: ventilator and hardware

jagannathang — Thu, 26 Mar 2020 15:19:34 GMT

Pls. share your mail id . I will give u the Gerber . it is quite complicated and i can help u . My mail id is g.jagan@aarmsvaluechain.com. My mobile no. is +919845497950

Re: ventilator and hardware

mikeh2 — Sun, 29 Mar 2020 17:52:50 GMT

Hello,

I am also working on a Respirator design for the Covid situation.

I have been trying to find the code files, the Gerbers, and if possible, the design files so I can make modifications to the circuit design.

NXP says that they no longer have these. Can someone forward a copy if you have them?

Thanks,

Mike

Re: ventilator and hardware

celsoken — Mon, 30 Mar 2020 14:55:05 GMT

I hope NXP does not sue me for that, but DRM127 files are here. Both HW and SW files. I think they are Codewarrior 6.3 based, so https://community.nxp.com/thread/302974 could be necessary. Good luck, Celso

Re: ventilator and hardware

abdullahmurad — Mon, 30 Mar 2020 15:09:44 GMT

Thank you so much for sharing these files!

Re: ventilator and hardware

abdullahmurad — Mon, 30 Mar 2020 15:32:58 GMT

Hello,
If someone is working on an Open Source Respirator for the current COVID-19 situation, I can help with the SW part.

Thanks, Murad

Re: ventilator and hardware

Juan-Rodarte — Fri, 03 Apr 2020 17:09:13 GMT

Hello, we have migrated the software from CodeWarrior 6.3 to CodeWarrior 11 to make it easier to use. The code has not been physically tested. We hope you find it useful.

Re: ventilator and hardware

abdullahmurad — Fri, 03 Apr 2020 22:48:58 GMT

Thanks, Juan, I also Migrated the software to CodeWarrior 11. Have you managed to make the PCB?

Re: ventilator and hardware

celsoken — Tue, 07 Apr 2020 19:31:49 GMT

Hi Abdullah,

I'm working on an open hardware, open source project named e-AR project. The mechanical and electrical prototype is functional, firmware is WIP. The mechanical prototype is the simplest I've ever seen worldwide. It uses shelf car parts to implement mechanical power and position control. Pls take a look in GitHub - RespiradorHacker/Projeto-EAR-Celso: EAR - Emergency Automatic Respirator check for existing photos and videos and if you're interested pls let me know.

Cheers,

Celso

Re: ventilator and hardware

celsoken — Tue, 14 Apr 2020 12:16:37 GMT

Dear Abdullah,

Our open-source open-hardware eAR is functional.

eAR project is working on forced ventilation mode. Assisted mode expected for this week.
eAR was designed to meet specs of MIT Projeto E-VENT and MHRA (UK) - Rapidly Manufacuted Ventilator System

Characteristics:
- Tidal Volume SET: 200-800ml range, calibrated at 400ml
- BPM SET: 8 to 32
- I/E Ratio: 1:1, 1:2, 1:3 and 1:4
- Plateau Hold Time: 150, 250, 500 and 1s
- Overpressure cutoff on 1 cm H2O resolution. Overpressure observed is less than 1 cm H2O.
- Mandatory External Watchdog Timer
- Works on simplest mechanics available:
- car window lift motor (right or left type)
- car fuel tank float sensor
- laser cut MDF parts, optionally use acrylic or metal sheet parts

Updated info on Github: https://github.com/RespiradorHacker/Projeto-EAR-Celso

Best Regards,

Celso

Re: ventilator and hardware

abdullahmurad — Tue, 14 Apr 2020 15:49:42 GMT

Dear Celso,

First of all sorry for the late reply. I would like to thank you a lot for your contribution!

I am currently manufacturing the UCL-Ventura CPAP device because it is relatively simple and can be manufactured with existing machines without importing any parts.

Of course, I can share with you the design files.

Regards,
Abdullah

Re: ventilator and hardware

celsoken — Tue, 21 Apr 2020 11:28:47 GMT

Dear Abdullah,

If your heathcare guys say that CPAP is good enough, it's ok. Here I rcvd info that we needed BPAP so we built a very low cost ventilator. Results are impressive with 1 cm H2O precision. Good luck! Cheers, Celso