RE: Add external SPI Flash Memory to Raspberry Pico - 2: first communication (and c++)

shabaz — Fri, 02 Dec 2022 02:08:02 GMT

Nice!

It easily compiled with CLion too. Nice how stable CMake is, and the Pico SDK, I didn't even check to see which version of the SDK I had. It's getting easier than Arduino.

I'm interested in using this with 1.8V Flash, and possibly 2.5V in future too, it will need a simple interfacing circuit. It's cheaper than a Flash programmer! And open source : )

I extracted the zip file into any folder, and then selected that folder using the Open Project wizard. When the popup appeared, there was just one thing to configure: I typed my path to the Pico C/C++ SDK:

That was it, it did everything else automatically. I did a clean build using Build->Clean followed by Build->Build Project.

The built file was in the appropriate folder:

RE: Add external SPI Flash Memory to Raspberry Pico - 2: first communication (and c++)

Jan Cumps — Mon, 28 Nov 2022 18:54:39 GMT

I did not do my best to write proper c++. One of the things I'd change is to define the constants as class constants.

In the header:

[embed:dc8ab71f-3b98-42d9-b0f6-e21e02a0f8e2:18b7b6ae-28a1-48d5-a0b0-6775907719ee:type=c_cpp&text=class%20m25%20%7B%0D%0Apublic%3A%0D%0A%20%20%2F%2F%20...%0D%0A%0D%0Aprivate%3A%0D%0A%20%20enum%20commands%20%3A%20uint8_t%20%7B%20%0D%0A%20%20%20%20FLASH_CMD_RDID%20%3D%200x9F%7D%3B%0D%0A%20%20%2F%2F%20...]

In the cpp file, remove this line:

#define FLASH_CMD_RDID         0x9F

There are more ways to do this. Critique is welcome.