Arduino for STM32

Use the loop, set a MUX_SEL combination and record current millis(), then on next loop check if a predetrmined number of millis has elapsed, if so read the MUX_OUTS and set next MUX_SEL and current millis(), if not just keep looping no delay, just keep looping until the intended delay has elapsed, f...

Sorry I was confused, now I realise you had 128+19 KB of program. So what to do, the Daisy Seed has 8MB of external flash, that should be useable to store a lot of presets. How that can be programmed and accessed can probably be found in Electrosmith documentation and or example code. Or you can rea...

Yes H7 boards typically has some MB or several of flash. So 19 kB is nowhere a flash limit.

So what board settings are you using?

The Daisy is not officially supported and they dont even tell what processor they use in their marketing, but a STM32 at 480 MHz sounds like STMH7

To test and learn, the Nucleo boards with ST-Link debug on board are extremely good value and superb platforms to evaluate your ideas. They dont need any extra bootloaders, and most modern ST chips have an on chip USB bootloader that is activated with a bit of BOOT magic when booting up so no extra ...

You can also take a look at the .map in the build directory to see if anything looks strange.

{ // Use IntelliSense to learn about possible attributes. // Hover to view descriptions of existing attributes. "version": "0.2.0", "configurations": [ { "cwd": "${workspaceRoot}", "executable": "/var/folders/68/wh3qywr531q4dtp_nhmd79...

There are some deep issues with saving and restoring objects, for info search for "object serialization". For instance the data in a String object ( from WString.h ) is char *buffer; // the actual char array unsigned int capacity; // the array length minus one (for the '\0') unsigned int l...

analogRead() is a very nice and handy function, but so general, setup for all boards and all analog pins, there is a huge overhead. You can increase speed by using the HAL layer for ADC, this is a bit fiddly and requires different settings for different boards, the HAL is not totally identical. I am...

Teensy 4 is a Cortex M7 at 600Hz with hardware floating point, and the Pico is a dual core Cortex M0+ at 133Mhz Now for some very specialized tasks the Pico just might be faster, but overall its not in the same league. Teensy 4 has a quite extensive software support with both USB host and client, at...

Storing a String object with EEPROM.put will store the String object, but it will not store the character array. If you try it with put and get in the same code, you save and restore the String object and the string data is already in memory so it seems to work. So basically you must save and restor...