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+*****************************************************************************

+*** Files Organization                                                    ***

+*****************************************************************************

+

+--{root}                        - ChibiOS directory.

+  +--readme.txt                 - This file.

+  +--documentation.html         - Shortcut to the web documentation page.

+  +--license.txt                - GPL license text.

+  +--demos/                     - Demo projects, one directory per platform.

+  +--docs/                      - Documentation.

+  |  +--common/                 - Documentation common build resources.

+  |  +--hal/                    - Builders for HAL.

+  |  +--nil/                    - Builders for NIL.

+  |  +--rt/                     - Builders for RT.

+  +--ext/                       - External libraries, not part of ChibiOS.

+  +--os/                        - ChibiOS components.

+  |  +--common/                 - Shared OS modules.

+  |  |  +--abstractions/        - API emulator wrappers.

+  |  |  |  +--cmsis_os/         - CMSIS OS emulation layer for RT.

+  |  |  |  +--nasa_osal/        - NASA Operating System Abstraction Layer.

+  |  |  +--ext/                 - Vendor files used by the OS.

+  |  |  +--ports/               - RTOS ports usable by both RT and NIL.

+  |  |  +--startup/             - Startup support.

+  |  +--ex/                     - EX component.

+  |  |  +--dox/                 - EX documentation resources.

+  |  |  +--include/             - EX header files.

+  |  |  +--devices /            - EX complex drivers.

+  |  +--hal/                    - HAL component.

+  |  |  +--boards/              - HAL board support files.

+  |  |  +--dox/                 - HAL documentation resources.

+  |  |  +--include/             - HAL high level headers.

+  |  |  +--lib/                 - HAL libraries.

+  |  |  |  +--complex/          - HAL collection of complex drivers.

+  |  |  |  |  +--mfs/           - HAL managed flash storage driver.

+  |  |  |  |  +--serial_nor/    - HAL managed flash storage driver.

+  |  |  |  +--fallback/         - HAL fall back software drivers.

+  |  |  |  +--peripherals/      - HAL peripherals interfaces.

+  |  |  |  +--streams/          - HAL streams.

+  |  |  +--osal/                - HAL OSAL implementations.

+  |  |  |  +--lib/              - HAL OSAL common modules.

+  |  |  +--src/                 - HAL high level source.

+  |  |  +--ports/               - HAL ports.

+  |  |  +--templates/           - HAL driver template files.

+  |  |     +--osal/             - HAL OSAL templates.

+  |  +--oslib/                  - RTOS modules usable by both RT and NIL.

+  |  |  +--include/             - OSLIB high level headers.

+  |  |  +--src/                 - OSLIB high level source.

+  |  |  +--templates/           - OSLIB configuration template files.

+  |  +--nil/                    - NIL RTOS component.

+  |  |  +--dox/                 - NIL documentation resources.

+  |  |  +--include/             - NIL high level headers.

+  |  |  +--src/                 - NIL high level source.

+  |  |  +--templates/           - NIL configuration template files.

+  |  +--rt/                     - RT RTOS component.

+  |  |  +--dox/                 - RT documentation resources.

+  |  |  +--include/             - RT high level headers.

+  |  |  +--src/                 - RT high level source.

+  |  |  +--templates/           - RT configuration template files.

+  |  +--various/                - Various portable support files.

+  +--test/                      - Kernel test suite source code.

+  |  +--lib/                    - Portable test engine.

+  |  +--hal/                    - HAL test suites.

+  |  |  +--testbuild/           - HAL build test and MISRA check.

+  |  +--nil/                    - NIL test suites.

+  |  |  +--testbuild/           - NIL build test and MISRA check.

+  |  +--rt/                     - RT test suites.

+  |  |  +--testbuild/           - RT build test and MISRA check.

+  |  |  +--coverage/            - RT code coverage project.

+  +--testex/                    - EX integration test demos.

+  +--testhal/                   - HAL integration test demos.

+

+*****************************************************************************

+*** Releases and Change Log                                               ***

+*****************************************************************************

+

+*** 20.3.2 ***

+- NEW: Support for 3 analog watchdogs in ADCv3 (STM32F3, L4, L4+, G4).

+- NEW: Support for 3 analog watchdogs in ADCv5 (STM32G0).

+- NEW: Updated FatFS to version 0.14.

+- NEW: Added a new setting to STM32 USBv1 allowing for some clock deviation

+       from 48MHz. Renamed setting USB_HOST_WAKEUP_DURATION to

+       STM32_USB_HOST_WAKEUP_DURATION for consistency.

+- FIX: Fixed STM32 QSPI errata workaround (bug #1116).

+- FIX: Fixed wrong condition in STM32 BDMAv1 driver (bug #1115).

+- FIX: Fixed HSI48 not getting enabled on STM32H7 (bug #1114).

+- FIX: Fixed LPUART1 support for STM32H7xx (bug #1113).

+- FIX: Fixed wrong sector count in EFL driver for L4+ dual bank configuration 

+       (bug #1112).

+- FIX: Fixed wrong preprocessor checks in STM32 TIMv1 ICU driver (bug #1111).

+- FIX: Fixed wrong revisions handling in STM32H743 HAL (bug #1110).

+- FIX: Fixed missing STM32_I2C_BDMA_REQUIRED definition in I2Cv3 driver

+       (bug #1109).

+- FIX: Fixed wrong definitions in SPC563M board files (bug #1108).

+- FIX: Fixed cortex-M vectors table alignment problem (bug #1107).

+- FIX: Fixed extra condition in MAC driver macWaitTransmitDescriptor() function

+       (bug #1106).

+- FIX: Fixed schedule anomaly when CH_CFG_TIME_QUANTUM is greater than zero

+       (bug #1105).

+- FIX: Fixed Virtual Timers corner case (bug #1104).

+- FIX: Fixed GCC6 problem breaks Cortex-M0 port (bug #985).

+- FIX: Fixed a wrong management of the SPI TX buffer in the ADUCM port 

+       (bug #1103).

+- FIX: Fixed STM32F4 EFL sector bug (bug #1102).

+- FIX: Fixed differences in STM32 EXTI (bug #1101).

+- FIX: Fixed STM32 DACv1 driver regressed because DMA changes (bug #1100).

+- FIX: Fixed STM32L0 missing LPUART IRQ initialization (bug #1099).

+- FIX: Fixed invalid EXTI definitions for STM32L0xx (bug #1098).

+- FIX: Fixed compilation error in file nvic.c (bug #1097).

+- FIX: Fixed STM32_DMAx_CH8_HANDLER not defined for DMAv1 (bug #1096).

+- FIX: Fixed STM32 EXTI2 and EXTI4 not triggering a callback (bug #1095).

+- FIX: Fixed STM32G4 demos compile fails if smart mode is disabled (bug #1094).

+- FIX: Fixed failure in chSemReset() function when counter is equal to MAXINT

+       (bug #1093).

+- FIX: Fixed error in EXTIv1 ISRs (bug #1077).

+

+*** 20.3.1 ***

+- NEW: STM32 ICU driver now allows to setup the ARR register in the

+       configuration structure, the default value should be 0xFFFFFFFFU.

+- NEW: Updated debug tools to be independent from the toolchain position:

+       they now rely on the environment variable CHIBISTUDIO.

+- NEW: Added dynamic reconfiguration API to lwIP bindings.

+- FIX: Fixed swapped definition in ST_STM32F746G_DISCOVERY board files

+       (bug #1092).

+- FIX: Fixed missing symbols in GCC scatter files (bug #1091).

+- FIX: Fixed wrong SAI1 clock selection for STM32G4xx (bug #1090).

+- FIX: Fixed STM32H7xx ADC problem in dual mode (bug #1089).

+- FIX: Fixed invalid CHSEL DMA setting in STM32 UART drivers (bug #1088).

+- FIX: Fixed sector count incorrect in STM32G07/8 EFL driver (bug #1085).

+- FIX: Fixed sector size incorrect in STM32F413 EFL driver (bug #1084).

+- FIX: Fixed wrong arguments for the cacheBufferInvalidate in the STM32 SPI 

+       demo (bug #1086).

+- FIX: Fixed race condition in HAL MAC driver (bug #1083).

+- FIX: Fixed STM32H7 compile fails for I2C4 (bug #1082).

+- FIX: Fixed early interrupts enable in ARMv7-M port (bug #1081).

+- FIX: Fixed I2CD4 interrupt vectors are swapped versus I2CD1-I2CD3 (bug #1080).

+- FIX: Fixed incorrect clock check when using PLLSAI1R in ADCv3 (bug #1079).

+- FIX: Fixed missing checks in TIM6 and TIM7 STM32 mini drivers (bug #1078).

+- FIX: Fixed problem in chMtxUnlockAllS() (bug #1076).

+