Remove obsolete target. Cleanup and update ReadMe. (#279)

firmware/ReadMe.md

@@ -1,77 +1,52 @@
-_Overview of Flipper firmware architecture:_
-
-![FW arch](https://github.com/Flipper-Zero/flipperzero-firmware-community/raw/master/wiki_static/flipper_fw_arch.png)
-
 # Project structure
 
 ```
 .
 ├── applications    # Flipper applications
+├── assets          # Assets: icons, animation
 ├── bootloader      # Bootloader make project
 ├── core            # Main feature like OS, HAL (target-independed)
 ├── core-rs         # Rust code
+├── debug           # Debug helpers, configs and plugins
 ├── docker          # Docker toolchain container
 ├── firmware        # Firmware make project
 ├── lib             # Libs and 3rd parties
 ├── make            # Makefile scripts
-├── wiki            # Documentation (wiki) generates from this files
-└── wiki_static     # Static files for wiki
 ```
 
-# HAL
-
-We use STM32 HAL/LL. Description available here: [dm00105879.pdf](https://github.com/Flipper-Zero/flipperzero-firmware-community/raw/master/wiki_static/dm00105879-description-of-stm32f4-hal-and-ll-drivers-stmicroelectronics.pdf)
-
-## Flipper HAL
-
-Some flipper-specific implementation of gpio/HAL:
-
-* Init gpio pin: `app_gpio_init`
-* Fast write gpio (inline): `app_gpio_write`
-* Fast read gpio (inline): `app_gpio_read`
-* Microsecond delay `delay_us`
-* Set PWM on timer's pin: `pwm_set`
-
-Files location: `/app/app_hal.[ch]`
-
 # Bootloader
 
-For production targets('f2' and newer) bootloader must be flashed first.
+Bootloader must be flashed first.
 Detailed instruction on how to compile and flash it you can find in `bootloader` folder.
 
-Production version is going to have following features:
-
-- Hardware initialization
-- Firmware CRC check
-- Firmware update
-- Interactive UI
-- Boot process LED indicators
-- FS check
-- Recovery mode
-
 # OS
 
 CMSIS-RTOS2 over FreeRTOS
 
-**[Timers map](Timers)**
-
-# Platform code
+## Platform code
 
 CMSIS, Freertos and HAL files are generated by CubeMX.
-You can find platform code for L476 version in `f2` folder:
+You can find platform code for STM32WB55 version in `f4` folder:
 
-* `Inc` `Src` — CubeMX generated headers & code
-* `Middlewares/Third_Party/FreeRTOS/Source` — freeRTOS
-* `deploy.sh` — flash firmware to device
-* `STM32L476RGTx_FLASH.ld` — linker script
-* `startup_stm32l476xx.s` — board startup/initialization assembler code
-* `cube.ioc` — CubeMX project file
+```
+├── Inc                             # CubeMX generated headers
+├── Src                             # CubeMX generated code
+├── api-hal                         # Our HAL wrappers and platform specifics
+├── ble-glue                        # BLE specific code(Glue for STMWPAN)
+├── f4.ioc                          # CubeMX project file
+├── startup_stm32wb55xx_cm4.s       # Board startup/initialization assembler code
+├── stm32wb55xx_flash_cm4*.ld       # Linker scripts
+├── target.mk                       # Makefile include
 
-You can regenerate platform code:
+```
+
+Working with CubeMX:
 1. Download CubeMX from [st.com](https://www.st.com/en/development-tools/stm32cubemx.html)
 2. Open `*.ioc` file
+3. Do whatever you want to
 3. Click `generate code`
-4. After regenerating, look at git status, regenerating may broke some files.
+4. After regenerating, look at git status, regeneration may brake some files.
+5. Check one more time that things that you've changes are not covered in platform api-hal. Because you know...
 
 # Flipper Universal Registry Implementation (FURI)