Good morning, I have read the first document you have sent and more preceisely the Development Mode Flash Encryption. At the moment, I have many questions on this part. Could you please explain me the following points ? 1) It is written : "After encrypt, physical readout of flash will not be suffici...

Good afternoon, In the componay I am working for, we are designing an electronic board using an Esp32S3. The Esp32S3 chip will be flashed via USB in production (With a firmware from the company). 1) Could you please explain me if there is a tool or a technical mean to read the firmware from the chip...

Let's say I have two instances of FAT FileSystems. The 1st one has the path : /flash1 The 2nd one has the path : /flash2 In order to open a file on FileSystem1, I can do : FILE *MyFile = fopen("/flash1/readme.txt", "a+b"); In order to write something in this file I can do : fwrite("Hello\0", 1, strl...

Ok thank you for your answer.
However, I have tried fsyc(fileno(FileStream)) but this does not flush the datas correctly in my file.

Any suggestion in order to deal with 10 bytes at each write ????

What can I do please ?

Moreover I have a problem. Could you please help me ? As I understand, f_sync() is part of the FAT FileSystem library. In my application, I have 3 different FileSystem registered using Virtual FileSystem. At the moment, I am using the standard C functions in order to access to the different file. Vi...

Do you have any example in order to use f_sync please ?
I have tried it but I didn't manage to sync the datas in the file.

Moreover, what do you mean about using bare partition. Do you think about
calling esp_flash_partition methods ?

Thank you.

Good morning, I am using an Esp32S3 and I have a problem when writing something in Flash memory. Could you please help me ? 1) 1st thing I have done : I defined a partition type FAT in flash memory. I mounted a FileSystem (Type FAT FileSystem) on this partition using Virtual File System component. M...

Good afternoon, Using the Esp32S3 chip, I managed to define a "bootloader_component" "bootloader_components/my_boot_hooks/hooks.c" where a placed a void bootloader_before_init(void) {} definition. From that function, I would like to read and write some bytes of a flash partition. Do you know how to ...

Thank you, Concerning the PullUp/Down value at reset, the thing is that I need a pin on which I could change the Pull Value (Sometime the pin should have a PullUp at reset and sometime the pin should have a pulldown at reset). And this on the same pin. You see what I mean ? I don't know if it is pos...

Good morning, thank you for your answer. Could you please tell me more about that ? 1) Your speak about using a pin which has a PullUp by default. Do you know if there is this kind of Pin on the Esp32S3-WROOM1 module please ? If the answer is yes, do you know if we have the possibility to change the...