HI, It was returning ESP_OK - I was erasing 250 sectors (1 MByte). Then if I wrote the flash and read back the data some data would be corrupted. I just changes the erase to erase one sector at a time as below and then all my verification passes every time. for(uint16_t i = 0 ; i < 250 ; i++) //eras...

Yes correct sector size is 4096 and erase must be a multiple of this. I just reduced my erase to a maximum of 32768 and then everything started working. The hint was this line of code ..... #define BLOCK_ERASE_SIZE 32768 ..... However the problem may be unrelated to this which is why I want the conf...

Hi ESP32 developers, Question 1: I am using the Flash functions in flash_ops.c. It seems that the flash erase function esp_err_t IRAM_ATTR spi_flash_erase_range(uint32_t start_addr, uint32_t size) is limited to erasing 32768 bytes at a time - is this True? The erase function does not return any erro...

Quick search reveals some pretty useful information: http://lwip.wikia.com/wiki/Application_API_layers Some more facts on the APIs to help you to decide which one to use in your application: netconn- and raw-API are lwIP-only: code written in these APIs isn't portable to be re-used with other stacks...

Hi Kolban, Im not sure what the advantages and or differences are of using the netconn api over the socket one is as I havent used the socket API yet. Possibly someone else can shed some light on this - pros and cons of Netconn Vs Sockets? If you have any simple examples you can share I can give it ...

Hi Kolban, The message is not from my application code. The code basically sets up a listening port and retrieves all the data using netconn and netbufs. However - If I set up the ESP32 as an AP and connect my PC to the ESP32 AP it all works fine. If I connect the ESP32 as a STA to my work network a...

Hi All, I am sending a file (around 700kbytes) to the ESP32 setup as a TCP server from a PC client. Part way through receiving the file it starts to receive this error message E (1871053) wifi: TIMQ_NUL. I cant find in the code where or why this is happening . Can someone tell me why this is happeni...

Update - All working after MODS to our board swapping SI and SO .

Hi ESP32 experts, I am designing our hardware and software such that I am relying on storing 2MBytes of data on our ESP32 SPI Flash which is a total of 4MBytes. So half for the ESP32 code and half for my application code. At present this is working however I am not sure how the flash will be used wh...

Hi , Many thanks for the prompt reply. So we found that on our PCB the SI and SO lines to the flash chip are swapped , so I have sent the board for modifications and hopefully it will fix the issue. I assume there is no way to change the bootloader to swap those pins on the micro side? Thanks Imtiaz