about CONFIG_ESB_FAST_SWITCHING

[Liny]

1. 我想在 nrf 54l15 中使用 CONFIG_ESB_FAST_SWITCHING，但好像 l15 不支持，只能在 H 系列上使用？ 
如果 l15 支持，我该如何使用呢？通过移除 SOC_NRF54H20_CPURAD 来实现吗？

2. 顺便问一下，为什么 CONFIG_ESB_FAST_SWITCHING和  不能 共存？它们之间有什么冲突吗？ESB_SHORT_DISABLE_MASK 

3. 如果我配置了 CONFIG_ESB_FAST_SWITCHING，禁用后接收端不会生成，功耗会增加吗？我该如何降低功耗？

4.what's the different between events_phyend and events_end of radio? if i read rx_payload while enents_phyend generate, will i loss data? can i use events_end instead events_phyend in nrf54l15, like nrf52 series

[Hieu]

Hi Liny,

Could you please rewrite your post in English? I tried using a machine translator, but the result seems wrong, and I can't understand the questions, aside from #1.

Regarding #1, it's indeed true that ESB Fast Switching is only supported experimentally on the nRF54H20. It is simply not supported on the nRF54L15 at the moment.

Hieu

[Liny]

ok, Sorry, I forgot to switch to English.

2.By the way, why can't CONFIG_ESB_FAST_SWITCHINGand ESB_SHORT_DISABLE_MASKcoexist? Is there any conflict between them? In the code snippet, if CONFIG_ESB_FAST_SWITCHINGis defined, then ESB_SHORT_DISABLE_MASKwill not be enabled.

3.If I configure CONFIG_ESB_FAST_SWITCHING, will the radio not automatically disable after generating the END signal, leading to increased power consumption? How can I reduce power consumption?

4.What is the difference between the radio's events_phyendand events_endsignals? Why is events_phyendcommonly used instead of events_endon the NRF54L15?

[Liny]

1.

Regarding the first point, I would like to inquire: is the radio fast switching feature completely unavailable on the nRF54L15? Or does the nRF54L15 support this feature, but it hasn't been thoroughly validated and may lead to unpredictable effects? I noticed that the NRF54L15 chip manual includes this register, which is a very important detail. Thank you!

[longrain]

https://github.com/LRchangyu/nrf54l_radio

Check if this can help.

[Hieu]

Hi Liny,

I can't comment on longrain's project due to unfamiliarity with it.

As for the ESB Fast Switching feature, I don't have the liberty to say anything about how much a feature has been investigated or developed or tested. Could you please have a word with your local Nordic sales contact?

I am out of office now but will return on Tuesday and look into your technical questions if they are applicable to the nRF54L15.

Hieu

[Doris.chen]

Any updates?
I'm also using this feature with NCS v3.1 on nRF54L15, and I'm wondering if enabling CONFIG_ESB_FAST_SWITCHING manually could help achieve faster transmission speed.
Currently, the TX/RX switching time seems too slow, so I’m looking for a way to improve it.