Search found 14461 matches
- Fri May 03, 2024 8:46 am
- Forum: ChibiOS/RT
- Topic: the fundemental questions about context switch mechanism in ChibiOS
- Replies: 1
- Views: 40
Re: the fundemental questions about context switch mechanism in ChibiOS
Hi, In that port the context switch is performed synchronously and without entering an exception state, look at the asm implementation of port_switch(). It just stacks/unstacks all the EABI function-preserved registers and swap stacks. Note that there are 2 distinct ARMv7-M ports, the alternate port...
- Fri Apr 26, 2024 3:46 pm
- Forum: Bug Reports
- Topic: FDCAN with STM32H735 Topic is solved
- Replies: 8
- Views: 3008
Re: FDCAN with STM32H735 Topic is solved
Hi,
An implementation will be added soon, some testing will be appreciated.
Giovanni
An implementation will be added soon, some testing will be appreciated.
Giovanni
- Mon Apr 22, 2024 8:17 pm
- Forum: General Support
- Topic: maple mini can bus function build fail
- Replies: 1
- Views: 193
Re: maple mini can bus function build fail
Hi, It is a silicon limitation, from the STM32F1xx reference manual: "In low, medium, high and XL-density devices, the USB and CAN share a dedicated 512-byte SRAM memory for data transmission and reception, and so they cannot be used concurrently (the shared RAM is accessed through CAN and USB ...
- Mon Apr 22, 2024 7:00 am
- Forum: General Support
- Topic: board.h generator
- Replies: 2
- Views: 112
Re: board.h generator
Hi,
The tool is embedded in ChibiStudio, see https://www.playembedded.org for guides.
Alternatively there is a script /os/hal/boards/genboard.sh that generates the files starting from an XML description, it requires installation of the FMPP utility.
Giovanni
The tool is embedded in ChibiStudio, see https://www.playembedded.org for guides.
Alternatively there is a script /os/hal/boards/genboard.sh that generates the files starting from an XML description, it requires installation of the FMPP utility.
Giovanni
- Fri Apr 12, 2024 12:01 pm
- Forum: STM32 Support
- Topic: spi without dma
- Replies: 9
- Views: 4636
Re: spi without dma
Hi,
The STM32F4 does not have a DMAMUX so peripherals use specific DMA channels, you need to check the Reference Manual and see if there are alternative channels that can be used in your case. There is a table with mapping in the DMA chapter.
Giovanni
The STM32F4 does not have a DMAMUX so peripherals use specific DMA channels, you need to check the Reference Manual and see if there are alternative channels that can be used in your case. There is a table with mapping in the DMA chapter.
Giovanni
- Thu Apr 11, 2024 9:22 am
- Forum: General Support
- Topic: UDP receive missing messages
- Replies: 14
- Views: 890
Re: UDP receive missing messages
The PHY could require some extra initialization.
Giovanni
Giovanni
- Wed Apr 10, 2024 7:29 pm
- Forum: Bug Reports
- Topic: [HELP] STM32H750 USB HS ULPI Support,
- Replies: 16
- Views: 3216
Re: [HELP] STM32H750 USB HS ULPI Support,
Great thanks, moving this topic in "bug reports" so it is not lost.
Giovanni
Giovanni
- Wed Apr 03, 2024 7:12 pm
- Forum: Bug Reports
- Topic: [HELP] STM32H750 USB HS ULPI Support,
- Replies: 16
- Views: 3216
Re: [HELP] STM32H750 USB HS ULPI Support,
It could be a SW issue, ULPI has not extensively tested.
Giovanni
Giovanni
- Wed Apr 03, 2024 7:11 pm
- Forum: General Support
- Topic: UDP receive missing messages
- Replies: 14
- Views: 890
Re: UDP receive missing messages
Do you have a MACv1 board to try? (anything except H7).
Not sure how to test this.
Giovanni
Not sure how to test this.
Giovanni
- Wed Apr 03, 2024 6:41 am
- Forum: General Support
- Topic: UDP receive missing messages
- Replies: 14
- Views: 890
Re: UDP receive missing messages
Next step is to understand if there is a driver problem or an HW issue. Are you using MACv1 or MACv2?
Giovanni
Giovanni