MFR4310 Using Flexray Controller as non-coldstart Node

jochengerster — Wed, 25 Jan 2017 14:10:03 GMT

Hello

customer has a problem using MFR4310 as non-coldstart Node - see below more details

Thanks for your help

best regards

Jochen

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"MFR4310" Flexray Controller to transmit Flexray frames.

The node I am trying to simulate is:

I used the controller many times to simulate cold start nodes. This is the first time to use it as non-cold start node. I can not get it working.

Steps:

Initialize registers 0 to 0x2000 to zeros
Disable Interrupts through clear "GIFER:MIE_ENABLE" bit
Configure to Channel A through setting "MCR:ENABLE_CH_A" bit
Enabling the "MCR:MEN" bit
Write Command "POCR_CMD:DEFAULT_CONFIG"
psr0 indicates "PROTSTATE_DEFAULT:CONFIG"
Write Command "POCR_CMD:CONFIG"
Configure "PCR0 - PCR31"
Initialize all msg-buffers
Gifer set: MIE_ENABLE | PRIE_ENABLE | WUPIE | CHIE
POCR_CMD:READY
After powering up two external cold startup nodes, I can see their frames on CANoe:
- POCR_CMD:RUN

Reading PSR0, I find that the Controller is alternating between the states:

I never go to states "POC:integration consistency check" or Enter operation. Of course I can not send any Frames.

Is there anything missing?

topic MFR4310 Using Flexray Controller as non-coldstart Node in Other NXP Products