Commit Graph

11 Commits

Author SHA1 Message Date
wanlei
d9d6f5a17a feat(twai): support legacy twai(can) driver for esp32p4 2023-10-26 16:20:45 +08:00
Darian Leung
72becf31e4 twai: Add errata workaround for listen only mode
This commit adds a workaround for the TWAI listen only mode errata which is
present on the ESP32, ESP32-S2, ESP32-S3, and ESP32-C3. twai_get_status_info()
has also been updated to account for the fact that TEC/REC are frozen in
listen only mode.

Errata Description:

When the TWAI controller is put into listen only mode, it should not influence
the TWAI bus in any way (i.e., should never send a dominant bit). However,
on the targets listed above, the TWAI controller will send dominant bits in an
error frame (i.e., active error frame), even if the controller is set to listen
only mode.

Workaround:

We can force the TWAI controller into the error passive state on startup (by
setting the REC to >= 128). Since the TEC/REC are frozen in listen only mode,
the TWAI controller will remain error passive and only send recessive bits
(i.e., passive error frames), thus will not influence the TWAI bus.

Closes https://github.com/espressif/esp-idf/issues/9157
2023-02-23 12:50:06 +08:00
morris
a25123f703 twai: bringup on esp32c6 2022-11-04 17:40:29 +08:00
Darian Leung
2f58060921 TWAI: FIFO overrun handling and errata workarounds
This commit adds handling for FIFO overruns and
adds workarounds for HW errats on the ESP32.

Closes https://github.com/espressif/esp-idf/issues/2519
Closes https://github.com/espressif/esp-idf/issues/4276
2021-03-30 14:17:31 +08:00
Marius Vikhammer
58c3f6a421 hal: explicitly include soc_caps.h
Many files in the HAL layer depended on SOC_ macros without
explicitly including soc_caps.h
2021-01-07 10:13:17 +08:00
Angus Gratton
66fb5a29bb Whitespace: Automated whitespace fixes (large commit)
Apply the pre-commit hook whitespace fixes to all files in the repo.

(Line endings, blank lines at end of file, trailing whitespace)
2020-11-11 07:36:35 +00:00
Michael (XIAO Xufeng)
1966f00f0b soc: updates caps usage
We should define caps as 1 if true. When use the caps macros, #if and
 #if ! should be used instead of #ifdef/#ifndef.
2020-10-17 16:10:17 +08:00
Michael (XIAO Xufeng)
647dea9395 soc: combine xxx_caps.h into one soc_caps.h
During HAL layer refactoring and new chip bringup, we have several
caps.h for each part, to reduce the conflicts to minimum. But this is
The capabilities headers will be relataive stable once completely
written (maybe after the featues are supported by drivers).

Now ESP32 and ESP32-S2 drivers are relative stable, making it a good
time to combine all these caps.h into one soc_caps.h

This cleanup also move HAL config and pin config into separated files,
to make the responsibilities of these headers more clear. This is
helpful for the stabilities of soc_caps.h because we want to make it
public some day.
2020-10-17 16:10:15 +08:00
Darian Leung
4c57f50fe4 TWAI: ISR runs when cache is disabled
This commit adds the feature where the TWAI ISR will continue to
run even if the cache is disabled. Whilst cache is disabled, any
received messages will go into the RX queue, and any pending TX
messages in the TX queue will be transmitted. This feature should
be enabled using the CONFIG_TWAI_ISR_IN_IRAM option.
2020-10-10 14:19:32 +08:00
Darian Leung
7398390049 TWAI: Track HW state in HAL
This commit refactors the TWAI HAL such that it
now tracks  harwdare state instead of the driver
layer. Some HAL and LL cleanup was also done.
2020-09-02 13:03:41 +08:00
Michael (XIAO Xufeng)
5425ef4ee4 hal: extract hal component from soc component 2020-09-01 13:25:32 +08:00