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11 Commits

Author SHA1 Message Date
deadprogram c2a04e1a45 machine/esp32c3: implement BlockDevice for esp32c3 flash 
- Add `machine_esp32c3_flash.go` to implement the `BlockDevice` interface for ESP32-C3.
- Map internal ESP ROM SPI flash and cache invalidation functions via CGo.
- Update `targets/esp32c3.ld` to expose `__flash_data_start` and `__flash_data_end` linker variables.
- Add `esp32c3` to build tags in `src/machine/flash.go`.
- Ensure atomic flash operations by disabling interrupts and invalidating cache to prevent stale reads.

Signed-off-by: deadprogram <ron@hybridgroup.com>
 2026-04-05 14:15:40 +02:00
Ayke van Laethem 42fed60e61 stm32l0: add flash support 
Flash on the STM32L0 series of chips works a bit different and needs a
slightly different implementation compared to other STM32 chips.
 2026-01-08 16:09:11 +00:00
Ayke van Laethem 5ae8fd1f6f machine: clarify WriteAt semantics of BlockDevice 
Flash can generally only be written after it has been erased, which
wasn't spelled out explicitly in the interface.
 2025-11-12 11:24:49 +01:00
Michael Smith 4768c7d431 machine/rp2350: add flash support for rp2350 (#4803) 
* machine/rp2350: add flash support for rp2350
* combine duplicate files
* clean things up and group by source file
* add stubbed out xip cache clean func if needed in the future
* update flash_enable_xip_via_boot2
* remove unused macros and fix inconsistent formatting
* make flash size configurable like rp2040
* add missing flash size configs
* retain big Go CGo compatibility per #4103
* clarify CS0_SIZE source and remove single-use typedef
 2025-03-16 09:45:53 +01:00
Ayke van Laethem 52b9fcd57f machine: remove bytes package dependency in flash code 
This also moves flash padding code to a single place, since it was
copied 5 times.

This change is necessary in Go 1.24 to avoid an import cycle.
 2025-02-25 14:41:42 +01:00
deadprogram b56a263d0d machine/flash: remove FlashBuffer, modify flash example to use BlockDevice interface 
Signed-off-by: deadprogram <ron@hybridgroup.com>
 2023-05-14 10:41:03 +02:00
deadprogram 5db83f11df machine/flash: refactor to keep use of pure offset relative to start 
Signed-off-by: deadprogram <ron@hybridgroup.com>
 2023-03-12 23:53:59 +01:00
deadprogram 60366adfa8 machine/rp2040: implement Flash interface 
Signed-off-by: deadprogram <ron@hybridgroup.com>
 2023-03-12 23:53:59 +01:00
deadprogram 51c1579c3d machine/samd51: implement Flash interface 
Signed-off-by: deadprogram <ron@hybridgroup.com>
 2023-03-09 06:42:41 +01:00
Ron Evans fc28f513c7 machine/samd21: implement Flash interface (#3496) 
machine/samd21: implement Flash interface
 2023-03-08 06:06:49 +01:00
Ron Evans 6e1b8a54aa machine/stm32, nrf: flash API (#3472) 
machine/stm32, nrf: implement machine.Flash

Implements the machine.Flash interface using the same definition as the tinyfs BlockDevice.

This implementation covers the stm32f4, stm32l4, stm32wlx, nrf51, nrf52, and nrf528xx processors.
 2023-02-27 13:55:38 +01:00