* Add comment about microzig.config
When writing a HAL, having the chip name is very important to switch features and select pinout. Mention the config in the README in a concise manner.
Co-authored-by: Felix Queißner <felix@ib-queissner.de>
* i2c: pass a config to init
For now, allow setting the i2c target speed
* i2c: allow selecting the scl/sda pins
Similar to the previous commit for uart, this allows specifying the pins for
microcontrollers that support multiple pins for a single i2c peripheral
* stm32f407: add support for i2c
Supports using all I2C peripherals with all their pins in standard mode (fast
mode support will be added in the future).
board: and chip: can be prefixed to the pin to force using a pin defined in the
board or in the chip. Currently though, neither chips or boards are handling
this prefix.
Since this is just used to give priority when parsing the pin, this commit
removes the namespace from the spec passed to parsePin. This isolates the
namespace handling to the Pin type creation, without having to handle it in
chips and boards.
While this does not automate clock configuration yet, at least it allows using
microzig with applications that configure the clock themselves and then declare
the speeds of the various domains.
Without this, all peripheral depending on different clock domanins (e.g. Uart or
I2C on STM32 devices) could only work with the reset frequency.
* stm32f407: add Uart support
* lpc1768: add cpu_frequency in board and chip
Allow using them with microzig Uart, which ensures the clock is present
* lpc1768: fix UART2 and UART3 peripheral clock register
They are in the PCLKSEL1 register, not PCLKSEL0
* uart-sync: use native microzig Uart, target different boards/chips
The previous example was lpc1768 specific, this new example should work with all
board and chips which implement the microzig Uart functionality. Instead of 4
LEDs, the new example uses a single LED to provide minimal debugging
capabilities if something does not work correctly.
This allows building this example for the stm32 f3 and f4 discovery boards.
* Add stm32f429 registers
Generated using regz with:
./regz STM32F429.svd > registers.zig
Using this SVD:
871761af63/data/STMicro/STM32F429.svd
* Add initial support for the stm32f429idiscovery eval board
Blinky example working on the board
Matt Knight
Nicolas Goy
Matheus C. França
Marnix Klooster
Ethan Frei
Riccardo Binetti
Vesim
Felix Queißner