Correcting the A-ULM (TTL

[NEAL SINGH]

SMARTFUEL SYSTEMS

29 COOPER STR, CYRILDENE, GAUTENG

 

Technical Directive

20 November 2019

 

Manufacturing Staff

QUAL STAFF

Stores

 

Correcting the A-ULM (TTL)

                                                

We have received TTL devices instead of RS485 and they are in Query Mode, which means if you plug it into a Terminal application, you will see that the device is sending out data. It should only respond with data if there is a request – so this firmware has to be changed. Hurricane’s Engineer will do this.

If you listen at 115200, this what you will see;

First, let look at how to connect the Sensor using a USB -CH340 TTL device.

 

Hopefully this will not keep happening but this is the setup and with this connected to a PC with AnyDesk Robb from Hurricane can upgrade the firmware device after device.

 

We will need to solve the problem of the TTL instead of RS485 – I’m working on that.

CEO

(Qual HFA)