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STM32F0 CAN with STM32Cube HAL

serkodog
Associate II

‎2015-02-02 04:35 AM

Posted on February 02, 2015 at 13:35

Help me, please.

I've got STM32F042K6T6.

I generated project for IAR with STM32Cube. I need use CAN-BUS in my device but i can't, cause it doesn't work.

I have CAN transmission in Infinite loop with 100ms delay. First 3 transmissions return timeout error ( /* Check End of transmission flag */ while(!(__HAL_CAN_TRANSMIT_STATUS(hcan, transmitmailbox)))). And then i haven't anymore mailboxes and HAL_CAN_Transmit returns HAL_CAN_STATE_ERROR. I have tested all CAN modes: CAN_MODE_NORMAL, CAN_MODE_LOOPBACK etc. I have got CAN driver SN65HVD233DR.

I attach a main.c file to the message.

And i see nothing on CAN_TX pin with oscilloscope - only 3.2 Volt.

What i'm doing wrong? Help me please!

Thanks!

#can #hal #bxcan #stm32f0 #bus
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15 REPLIES 15
serkodog
Associate II

‎2015-02-03 05:12 AM

Posted on February 03, 2015 at 14:12

Yes, sure.

Clocks from HSI

________________

Attachments :

main.c : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006I0gp&d=%2Fa%2F0X0000000bfS%2F1xWRN5SrL3wOtfETmaQvO5xORo6D1hgmQ2c1z4xyeIg&asPdf=false
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rm239955
Associate II

‎2015-02-03 05:22 AM

Posted on February 03, 2015 at 14:22

Have you enabled your CAN_RX Interrupt function?

If not enable the inteerupt function

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serkodog
Associate II

‎2015-02-03 09:28 PM

Posted on February 04, 2015 at 06:28

Yes, STM Cube did it.

I have:

HAL_NVIC_SetPriority(CEC_CAN_IRQn, 0, 0);

HAL_NVIC_EnableIRQ(CEC_CAN_IRQn);

in ''stm32f0xx_hal_msp.c'' in ''void HAL_CAN_MspInit(CAN_HandleTypeDef* hcan)''

function.

I attached all my 3 files in this message.

________________

Attachments :

main.c : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006I0uB&d=%2Fa%2F0X0000000bfQ%2FI9legXraf8Bz7lKxHyajHt4v6robwBwNvH4BtBlOv6g&asPdf=false

stm32f0xx_hal_msp.c : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006I0u6&d=%2Fa%2F0X0000000bfO%2F8XNgJCHSdSviyXjamEvTnqZECFeA0Tr_NppW1WmEO4g&asPdf=false

stm32f0xx_it.c : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006I0u1&d=%2Fa%2F0X0000000bfP%2F3AemOklENAiBtk6G4x5gc32so9nyC6qyed31IuNV1Bw&asPdf=false
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serkodog
Associate II

‎2015-02-04 12:49 AM

Posted on February 04, 2015 at 09:49

Resolved.

You was right. When I initialized and activated filter all became OK.

I

nterrupt

work now and I see received data!

THANKS!

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rm239955
Associate II

‎2015-02-04 02:01 AM

Posted on February 04, 2015 at 11:01

Can you send me the program

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