diff --git a/books/beaglebone-cookbook/11misc/misc.rst b/books/beaglebone-cookbook/11misc/misc.rst index ff04c920495d6c49c86ebbc72f698856c484388f..04b6af7db429fa3619f7a8a7395500fc8c593e78 100644 --- a/books/beaglebone-cookbook/11misc/misc.rst +++ b/books/beaglebone-cookbook/11misc/misc.rst @@ -640,7 +640,7 @@ the Initialization Process. Initialization Process We are interested in what happens in the **ROM code**. -Page 2457 shows the different ROM Bode Boot Modes. +Page 2457 shows the different ROM Code Boot Modes. .. figure:: figures/boot-modes.png :align: center @@ -664,3 +664,24 @@ shows how the BOOTMODE pins are set during boot. :alt: bootstrap Bootstrap + +Button Not-pressed: + + ++---+-------------+--------------------+------------------------+ +|1, | PLL Config | B[2:0] = 0b011 | : Ref Clcok -> 25MHz| ++---+-------------+--------------------+------------------------+ +|2, | Primary Boot| B[9:3] = 0b1001001 | : eMMC Boot | ++---+-------------+--------------------+------------------------+ +|3, |Backup Boot | B[13:10] = 0b1011 | : UART Boot | ++---+-------------+--------------------+------------------------+ + +Button Pressed: + ++---+-------------+-------------------+------------------------+ +|1, |PLL Config | B[2:0] = 0b011 | : Ref Clcok -> 25MHz | ++---+-------------+-------------------+------------------------+ +|2, |Primary Boot |B[9:3] = 0b1001000 | : SDCard FS Boot | ++---+-------------+-------------------+------------------------+ +|3, |Backup Boot |B[13:10] = 0b0001 | : USB DFU Boot | ++---+-------------+-------------------+------------------------+