Hi, I am working with wrover dev kit and use fwrite and fread to write and read a block of data into/from a .DAT file in the SD card. I increased the buffer size to 32kB which is the cluster size of my SD card. The write speed of 6MB and read speed of 1MB was achieved. Does anyone know how I can inc...

I have tracked what I think are the performance issues down to: esp_vfs_read() is being called to read 128 bytes at a time, even when I am calling an fread(), requesting 50KB. I can't find where that 50KB request is being broken into 128 byte chunks. I assume its somewhere in newlib or the configur...

Hi, I am using an ESP-Wrover-Kit which has a ESP-Wrover module installed in it. It features a 4 MB external SPI flash and an additional 8 MB PSRAM. In the datasheet, it is mentioned that up to 4 MB of PSRAM can be mapped into CPU data memory space at a time. As only 4 MB memory space is considered f...