SPI2/3 in custom bootloader

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karthikkrv85
Posts: 12
Joined: Tue May 24, 2022 10:46 am

SPI2/3 in custom bootloader

Postby karthikkrv85 » Thu Oct 13, 2022 1:47 pm

Team,

Can i use SPI2/3 in custom bootloader? Given drivers in bootloader seems supporting only SPI0/1 (memory mapped SPI). Let me know if we can access SPI2/3 also provide which files & interfaces i can use
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karthikkrv85
Posts: 12
Joined: Tue May 24, 2022 10:46 am

Re: SPI2/3 in custom bootloader

Postby karthikkrv85 » Thu Oct 27, 2022 2:27 pm

Team,

Any input on this query? I had to use SIP flash (SPI0/SPI1) as well as external flash (SPI2). I am using esp32s3 chip
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ESP_Sprite
Posts: 9739
Joined: Thu Nov 26, 2015 4:08 am

Re: SPI2/3 in custom bootloader

Postby ESP_Sprite » Fri Oct 28, 2022 8:17 am

There's nothing particular stopping you from doing that, but you can't use the normal drivers as FreeRTOS is not running. You should still be able to use the HAL layer, though.
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