Is there any SPI examples by directly accessing the registers?

RE: Is there any SPI examples by directly accessing the registers?

Yuhua — Tue, 24 Nov 2020 10:15:16 GMT

I have read this documentation, some questions need help: If

1. Is TXD.MAXCNT maximum length equal to 255 ? If it set value = 200.

2. Is TXD.LIST maximum length equal to 7 ? If it set value = 2

3. Set TXD.PTR point to an array lists that they are continuous RAM buffer[400] and split them into 2 array lists,

4. set shortcut END_START

5. Enable and Start

Does the SPIM will continuous send buffer data serial to MOSI without any pending .. ?

haakonsh — Fri, 28 Jun 2019 13:18:21 GMT

We do not have any examples for that. You'll have to read the SPIM — Serial peripheral interface master with EasyDMA and SPIM HAL carefully.

Jimmy Wong — Fri, 28 Jun 2019 01:41:03 GMT

Hi,

You can use the GPIO emulate the SPI driver in order to save the code size.

Just like this example to use the GPIO to drive SPI flash.