
Keil MDK5可以直接运行L4官方固件库驱动库板级支持包。
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Version: 2.6.0 (2021-07-30) Keil.STM32L4xx_DFP.2.6.0.pack Updated package for the STM32Cube_FW_L4 Firmware Package, version V1.17.0. This package incorporates significant enhancements and modifications designed to optimize performance and expand device support within the STM32L4 series. Specifically, a global define, `USE_FULL_LL_DRIVER`, has been added to the component ::Device:STM32Cube LL:Common, facilitating more comprehensive driver utilization. Furthermore, detailed debugProbe board descriptions have been implemented to improve development workflows.
Device Support has undergone substantial updates, including revisions to SVD files and associated documentation for enhanced clarity and usability. The device RAM size has also been meticulously reworked to ensure accuracy and consistency across various configurations. A notable addition comprises support for several previously missing devices: STM32L451CETx, STM32L452CETx, STM32L462CETx, STM32L4Q5CGTxP, STM32L4Q5CGUxP, STM32L4Q5VGTxP, STM32L4Q5QGIxP, STM32L4Q5ZGTxP, STM32L4Q5AGIxP, and STM32L4Q5RGTxP. Conversely, certain devices have been removed from the package: STM32L451RCYx, STM32L452RCYx, and STM32L485xx.
Flash Algorithm improvements include the addition of an algorithm specifically tailored for STM32L4RxxG devices alongside updates to existing flash algorithms such as STM32L4Rx_2048_Dual, STM32L4P5xx_1M, and STM32L4P5xx_512 – incorporating features like empty check validation during programming operations along with disabling interrupts during programming when operating in Hardware Watchdog (IWDG) mode; these changes address previously identified programming issues related to the last word being written incorrectly.. CMSIS-Driver enhancements focus on USBH functionality; specifically addressing occasional port resume stalls by implementing compile time configuration options aimed at reducing Bulk IN NAK rates . SPI functionality has also received attention with updated Control functions now restricting SPI bus speed solely to master mode while disabling DMA before reconfiguring it ensuring proper operation . The `SPI_GetStatus` function now returns a more precise error code while the `SPI_GetDataCount` function is updated when SPI initialization is not complete .
Finally , Board Examples have been revised with an updated Assembler option utilizing armclang (auto selection) , and configuration files have been updated to align with CMSIS 5.8.0 and MDK-Middleware 7.13.0 standards promoting compatibility across diverse development environments .
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