4 red flashes, followed by a yellow flash sequence of 2-2-1-3

This continues to happen when trying to start the engine of the machine. As if maybe the battery voltage is going too low momentarily.

Once in this state, the IQAN module cannot be communicated with using IQANRun 5 and is not operational until powered off then on, but will deliver the above flash sequence. 

Any help would be appreciated.

Dear Gustav.

Could you please tell me if the MD4 is ISO 26262? 

Regards

Cyril

We have a customer with a MD3 that sometimes works fine and other times just displays this error message. Its running a IQAN Version 2 program.

+AT+IPR?$dAT+IPR?$D

We will replace the display, just curious what is going on.

Thanks

I have an MC2 that will not accept a new date/time.  It's stuck on 01/01/2001 - 00:00:00.

I connected to it, and used IQANrun to set date/time, it says it was successful, but the date/time didn't change.  I rebooted the system, did not help.

J1939 TDA is disabled for this machine, RTC is enabled.

Wondering if anyone has seen this before....

Hi all,

I'm currently testing an MC43 on our HIL bench and notice some issue with the low side driver at startup.

On our system, all the low side driver of the MC43 at pulled up to supply voltage with a 10K pull up resistor.

The problem is that when we switch on the ECU, it's going into error with the code 4:2.

We find out that by waiting 1.5 sec at startup before pulling up the low side driver fix the problem. 

The problem is that on the vehicle we will probably end up in this situation as some low side driver are going to be pulled up throw some relay coil. 

Is the unit is going into error if any low side driver is pulled up or only some of them trigger it ?

Thanks for your support,

Grégoire

I am trying to read a NTC thermistor with a resistive output ranging from 810 - 76.9 ohms on the MC43. 

In the past we have used a voltage divider circuit to read the sensor value on a VIN channel, but if the MC43 could introduce a bias current to the thermistor then the output voltage could read without the need for a second resistor in the mix. 

I did not seeing any mention of this in the MC43 manual but was wondering if anyone has faced this challenge before. 

Thank you. 

Hello,

We are currently working with a MC43, and I had a question regarding the use of PWM out as a control device. I found this post, since it was 4 years old thought I would ask again. We are trying to control a water valve position with one of the PWM out on the MC43, but not getting the expected results. 

The datasheet specifies a leakage current of 2mA. What do you recommend to clean this up and bring it down close to 0?

I am relatively new to the whole IQAN infrastructure and I am wondering why is there such a high leakage current? Is there any benefit to it?

Thanks in advance

Is there a chart comparing controller performances other than just I/O counts such as Memory size/ processor speed.

Specifically I am looking to decide what is the next platform we are going to use.  I am looking for a Non display master with large number of Can interface.  So MC43 comes to mind but in thread I read it does not seem to be as powerful as the MD4 display series.