I know that this kind of trouble has been asked several times, but this one in particular i cannot find.
I am runing a ESP32D0WDQ6 on a custom pcb that i have made based on a ESP32 dev kit.
I am programming it through an external MAX3232, hocked to the U1 (gpio10/9) pins. I have tested that the board is 'alive' by connecting another usb-rs232 converter to the U0 and by entering the boot secuence on GPIO0 I get :
so, I thing that it is internally working (am I right?)ets Jun 8 2016 00:22:57
rst:0x1 (POWERON_RESET),boot:0x1 (DOWNLOAD_BOOT(UART0/UART1/SDIO_FEI_REO_V2))
waiting for download
but then when I try to flash something in U1 I get the follow:
in the hardware side i have: En and boot(gpio0) pins are pulled up to 3v3 by 10k resistors; and the buttons has a 10p cap, but no pulldown (i have try to put several, but doesnt work either). gpio2 10k pulldown. gpio12 floting.[root@15b5618cc4a2 helloworld]# make flash
Flashing binaries to serial port /dev/tty0 (app at offset 0x10000)...
esptool.py v2.1
Connecting........_____.....__
Chip is ESP32D0WDQ6 (revision 1)
Uploading stub...
Running stub...
Stub running...
Configuring flash size...
A fatal error occurred: Timed out waiting for packet header
make: *** [/home/esp/toolchain/esp-idf/components/esptool_py/Makefile.projbuild:53: flash] Error 2
and thats it. I cannot make it work; and dont have the slightest idea of whats going on.
any clues!?
thanks in advance!!