STM32 MCUs products

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H723 FDCAN1 and FDCAN2

Hi there,I am using two STM32H723ZGT communicating via FDCAN2 instance (FDCAN, no bit rate switch, 12500 bit/s). Both controller use the same FDCAN initialization code, but different filter IDs.As shown below, the message is transfered on receiver CA...

2024-02-13 14_52_36-Logic 2 [Logic - Connected] [Session 0].png
PGrif.2 by Associate II
  • 16 replies
  • 1 kudos

Resolved! Some of CAN packet have trouble.

Hello. I am developing CAN communication protocols using STM32F429.However there is a problem in sending CAN frame data. Here is a picture which I captured in CAN TX using logic analyzer, and as you can see, the series of data is losted after first d...

interactics_ST_0-1708505983865.png interactics_ST_1-1708506289458.png

Resolved! How do I set correct stdID for CAN-BUS?

Hi! I've seen some tutorials on can communication and notice that each of them use different StdId's. I'm using two nucle-l433rc-p boards, do I need a specific StdId or will any number between  0 and 0x7FF suffice?  

Mr4 by Associate II
  • 1 replies
  • 0 kudos

Resolved! FDCAN g431 doesn't filter

Hello, i'm testing FDCAN in my stm32g431 and it doesn't work well. Messeges goes throught it, even if ID doesn't match (TxHeader.Identifier = 0x102 shouldn't pass, but it does!) static void MX_FDCAN1_Init(void){hfdcan1.Instance = FDCAN1;hfdcan1.Init....

Tomuello by Associate II
  • 2 replies
  • 0 kudos

MCUs: We want your knowledge base suggestions!

Dear community members,We invite you to provide your suggestions for knowledge base articles in this thread. We strive to create articles that can assist or inspire you in the best possible way. Anything goes, the only condition is that it is related...

Resolved! STM32H743VI FDCAN didn't works as classical CAN

Hello, I have some trouble with FDCAN.Please let me know what is wrong with my settings. 1. Current problem: My STM32H7 transmit only error. (Logic Analyzer) (PCAN View)Same error signal repeat endless and if I connect PCAN, many other error and stuf...

LSH_6-1707659672665.png LSH_0-1707657852549.png LSH_5-1707659199679.png LSH_1-1707658358071.png
LSH by Associate II
  • 5 replies
  • 6 kudos

Resolved! high speed fdcan stm32g431

Hi, i'm dealing with fdcan and have problems with high speeds, 1Mbps works good, but 8Mbps (which works in loopback mode) doesn't, I tried with delay compensation, but didn't work, or maybe i used it wrong way? static void MX_FDCAN1_Init(void){ /* US...

Tomuello by Associate II
  • 3 replies
  • 0 kudos

Resolved! CAN bus doesn't work in loopback mode

  Hi I followed this yt-guide for CAN-bus I'm however using a different type of nucleo board (L433RC-P in my case and F103C8tx in the video) and a different type of CAN-transceiver (MCP2561T-E/SN vs...

Mr4_0-1707733361123.png Mr4_1-1707733423132.png Mr4_2-1707733462396.png Mr4_3-1707733661815.png
Mr4 by Associate II
  • 12 replies
  • 4 kudos

Resolved! Using classical CAN with FDCAN controller on STM32H743VIT6

Hello. I have three question about using classical CAN frame with FDCAN controller.I am using STM32H743VIT6 MCU on my PCB. 1. If system clock(label in ioc file: SYSCLK) is too low, can it make impossible to use CANbus? 2. If I using only classical CA...

LSH by Associate II
  • 3 replies
  • 1 kudos