micropython

Wykres commitów

Autor	SHA1	Wiadomość	Data
Damien George	04c7cdb668	stm32: Enter bootloader via a system reset. Entering a bootloader (ST system bootloader, or custom mboot) from software by directly branching to it is not reliable, and the reliability of it working can depend on the peripherals that were enabled by the application code. It's also not possible to branch to a bootloader if the WDT is enabled (unless the bootloader has specific provisions to feed the WDT). This patch changes the way a bootloader is entered from software by first doing a complete system reset, then branching to the desired bootloader early on in the start-up process. The top two words of RAM (of the stack) are reserved to store flags indicating that the bootloader should be entered after a reset.	2019-06-25 14:15:49 +10:00
Chris Mason	14cf91f704	stm32: In link script, define start of stack separately from heap end. Previously the end of the heap was the start (lowest address) of the stack. With the changes in this commit these addresses are now independent, allowing a board to place the heap and stack in separate locations.	2019-06-14 15:29:24 +10:00
boochow	1a8baad7ca	stm32/boards: Add STM32L432KC chip configuration files. The pin alternate function information is derived from ST's datasheet https://www.st.com/resource/en/datasheet/stm32l432kc.pdf In the datasheet, the line 2 of AF4 includes I2C2 but actually the chip does not have I2C2 so it is removed.	2018-12-06 13:32:43 +11:00

Autor

SHA1

Wiadomość

Data

Damien George

04c7cdb668

stm32: Enter bootloader via a system reset.

Entering a bootloader (ST system bootloader, or custom mboot) from software
by directly branching to it is not reliable, and the reliability of it
working can depend on the peripherals that were enabled by the application
code.  It's also not possible to branch to a bootloader if the WDT is
enabled (unless the bootloader has specific provisions to feed the WDT).

This patch changes the way a bootloader is entered from software by first
doing a complete system reset, then branching to the desired bootloader
early on in the start-up process.  The top two words of RAM (of the stack)
are reserved to store flags indicating that the bootloader should be
entered after a reset.

2019-06-25 14:15:49 +10:00

Chris Mason

14cf91f704

stm32: In link script, define start of stack separately from heap end.

Previously the end of the heap was the start (lowest address) of the stack.
With the changes in this commit these addresses are now independent,
allowing a board to place the heap and stack in separate locations.

2019-06-14 15:29:24 +10:00

boochow

1a8baad7ca

stm32/boards: Add STM32L432KC chip configuration files.

The pin alternate function information is derived from ST's datasheet
https://www.st.com/resource/en/datasheet/stm32l432kc.pdf
In the datasheet, the line 2 of AF4 includes I2C2 but actually the chip
does not have I2C2 so it is removed.

2018-12-06 13:32:43 +11:00

3 Commity (04c7cdb668cc7ee391ef5fe000f825389197f7e2)