In the boot flow description add the RESET and BOOT button as well as the function of the DTR and RTS lines of the serial interface.
Signed-off-by: Heinrich Schuchardt <xypron.g...@gmx.de> --- doc/board/sipeed/maix.rst | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/doc/board/sipeed/maix.rst b/doc/board/sipeed/maix.rst index 90ef70b7cf..a8efc90440 100644 --- a/doc/board/sipeed/maix.rst +++ b/doc/board/sipeed/maix.rst @@ -345,11 +345,15 @@ Technical Details Boot Sequence ^^^^^^^^^^^^^ -1. ``RESET`` pin is deasserted. +1. ``RESET`` pin is deasserted. The pin is connected to the ``RESET`` button. It + can also be set to low via either the ``DTR`` or the ``RTS`` line of the + serial interface (depending on the board). 2. Both harts begin executing at ``0x00001000``. 3. Both harts jump to firmware at ``0x88000000``. 4. One hart is chosen as a boot hart. -5. Firmware reads value of pin ``IO_16`` (ISP). +5. Firmware reads the value of pin ``IO_16`` (ISP). This pin is connected to the + ``BOOT`` button. The pin can equally be set to low via either the ``DTR`` or + ``RTS`` line of the serial interface (depending on the board). * If the pin is low, enter ISP mode. This mode allows loading data to ram, writing it to flash, and booting from specific addresses. -- 2.28.0