Hi Martin I will continue to use the ESP32 in my project with slow sample rate and also because of the SD-Card which is perfect for slow sampling rates. Bluetooth and USB also work great with the ESP32. But the fact that the interrupt hangs on most commands bothers me. And so everything together, it...

I would also like to use this board ,but I found the same problem with the sd-card. 2025-03-19_14-54-13.PNG on board is a sd-card but I can not choose the pin for the sd-card this is for: SDI=D2 SDO=C8 CLK=C12 CS=C11 is ok :) maybe you could use the 4Bit mode right away? here the schematic: 2025-03-...

On my STM32F469I-DISCO board is a sd-card but I can not choose the pin for the sd-card
this is for:
SDI=D12
SDO=G14
CLK=A12

CS=B14 is ok

maybe you could use the 4Bit mode right away?
here the schematic

Hi Martin

I can write sectors with the old SD component, is this also possible with the 4bit SD component?
And can the 4Bit Sd component also work on an STM32?

Hi Martin I made a second version of my programme. I have used the normal SD card component and am testing it now with this I have replaced all commands. i guess it is slow but i can maybe write sectoren with 512byte like by the PIC32 The pins are like this: 2025-03-13_17-16-30.PNG config the Sd com...

Hi Martin

1. change to the next sector much faster

It would already help if this time was reduced by half. It's just a change to the next sector

reduce the "orange" time:

Hi MJU20

try these settings. Works for me on PC and Android
Classic Bluetooth SPP Protocol

Hi Martin

Yes, that works. For a 1Mhz clock I don't need a wait.

I have not yet tested the values I am reading, but it is fast and in the interrupt macro! That is very good!

no delay ist the best:
with while: no wait 1Mhz:

Hi seokgi , Hi Martin It is also possible to change the BRG register without the clock. The number 216 works for me for 115200. You can calculate this for your configuration or try it out. For very slow baud rates you should also look at bit3 in the U2MODE register Insert after Monitor init: 2025-03...

Hi MJU20

That should work with the smartphone.

You have to start the menuconfig.bat
Can You try to start this?