STM32 MCUs products

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TEC CAN error instantly full

Posted on November 27, 2014 at 20:31Hi all!   In what cases will the Transmit Error Counter register jump from 0 to 0xF8? I am debugging this CAN transmission sequence, and after the Transmit request is set, the next step in debug will show a full E...

zamolan by Associate II
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STM32F4 timer (Prescaler Value)

Posted on January 24, 2013 at 03:46Hi, I have just saw a program about a interrupt time. The program can let the LED on and off in a specified period. But I have some question about the prescaler value, can anyone help me to understand the prescale ...

kazafwing by Associate II
  • 13 replies
  • 1 kudos

Code explanation

Posted on November 21, 2014 at 16:01 Hi!  I would be glad if someone would explain the steps this code does in order to set up the AF9 on GPIOD for CAN pins. It is in a nice example, and I cannot figure it out why does the setting like this. void GP...

zamolan by Associate II
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CAN Loopback scoped Tx dead

Posted on November 12, 2014 at 12:04Hi!    I am using a DevKit407 ( stm32f4 discovery + stm32f4dis-BB).   I managed to set up a perfectly functioning CAN1 in Loopback mode. I assume I should see the test frame sent on Tx pin (PB9 on stm32f4discove...

zamolan by Associate II
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CAN problems STM32F427IIT6

Posted on October 20, 2014 at 11:51 .ExternalClassDCF097B5A347480D92ECE7327D92DAC3 p {margin-bottom:0.1in;line-height:120%;} Dear, We have a new pcb with a STM32F427IIT6 processor I have 2 strange problems with the CANbus: A: CAN2 is not working ...

STM32F103 CAN Transceiver

Posted on October 10, 2014 at 16:15Hello everybody,I am searching for a CAN transceiver for STM32F103 based board I am developing.I was interested in the AMIS-30633 transceiver, it is automotive certified and it is ISO 11898 compliant. The STM32 CAN...

emilio by Associate II
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  • 0 kudos

Disable CAN Acceptance filter

Posted on September 09, 2014 at 23:23Is there a way to disable the acceptance filters and anything else that would prevent messages from being received?  I am trying to debug a CAN Rx issue and I want to make sure these filters are not stopping the ...

ebommer by Associate II
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Is STM32Cube speed optimized?

Posted on August 30, 2014 at 06:30I saw the code of stm32cube, It seems the code is not speed optimized,because nowadays micros have large amount of flash memory,the code size optimization is not important but speed optimization is very important, b...

SMT32F4 Discovery CAN Example with Interrupt

Posted on August 29, 2014 at 19:20 Hi everyone, I need a help about CAN integration . I want to create a CAN network with using 2 STM32F discovery board. When I set STM32, CAN_Loopback mode, When I send data to CAN also I will reac...

veyselka by Associate II
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STM32 & CAN bus - problem with communication

Posted on March 24, 2014 at 19:33I have STM32F429-Disco board and I'm trying to connect two CAN interfaces, which this board has.   My parts of the code are: /* CAN1 init function */ void MX_CAN1_Init(void) {   hcan1.Instance = CAN1;     hca...

anulka by Associate
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