We made our own board with ESP32-S3 (FN8 Model with 8 MB Flash internal). We see bootloop when we first turn it on. After looading bootloader.bin (and many different *.bin files) we still see bootloop problem and we get the following messages from COM port. We use Windows CMD for esptool.exe to load *.bin files.
ESP-ROM:esp32s3-20210327 Build:Mar 27 2021 rst:0x7 (TG0WDT_SYS_RST),boot:0x8 (SPI_FAST_FLASH_BOOT) Saved PC:0x40043ac8 SPIWP:0xee mode:DIO, clock div:1 load:0x3fcd0108,len:0x1634 load:0x403b6000,len:0xe74 load:0x403ba000,len:0x31c8 Checksum failure. Calculated 0x8e stored 0xde ets_main.c 329 ... (loops) ...
How can we solve this problem?
Any help is appreciated.
Thank You
We have tested many *.bin files (bootloader.bin, firmware.bin, combined.bin, helloworld-esp32s3.bin, bootloader_esp32s3.bin, etc) to get rid of bootloop. But no solution.
