STM32分类定义

#define STM32F10X_LD_VLSTM32F10X_LD_VL: STM32 Low density Value Line devices */
#define STM32F10X_MDSTM32F10X_MD: STM32 Medium density devices */
#define STM32F10X_MD_VL VLSTM32F10X_MD_VL: STM32 Medium density Value Line devices
#define STM32F10X_HDSTM32F10X_HD: STM32 High density devices */
#define STM32F10X_HD_VLSTM32F10X_HD_VL: STM32 High density value line devices */
#define STM32F10X_XL STM32F10X_XL: STM32 XL-density devices */
#define STM32F10X_CLSTM32F10X_CL: STM32 Connectivity line devices */

- Low-density devices are STM32F101xx, STM32F102xx and STM32F103xx microcontrollers
where the Flash memory density ranges between 16 and 32 Kbytes.
- Low-density value line devices are STM32F100xx microcontrollers where the Flash
memory density ranges between 16 and 32 Kbytes.
- Medium-density devices are STM32F101xx, STM32F102xx and STM32F103xx microcontrollers
where the Flash memory density ranges between 64 and 128 Kbytes.
- Medium-density value line devices are STM32F100xx microcontrollers where the
Flash memory density ranges between 64 and 128 Kbytes.
- High-density devices are STM32F101xx and STM32F103xx microcontrollers where
the Flash memory density ranges between 256 and 512 Kbytes.
- High-density value line devices are STM32F100xx microcontrollers where the
Flash memory density ranges between 256 and 512 Kbytes.
- XL-density devices are STM32F101xx and STM32F103xx microcontrollers where
the Flash memory density ranges between 512 and 1024 Kbytes.
- Connectivity line devices are STM32F105xx and STM32F107xx microcontrollers.

cl：互联型产品，stm32f105/107系列
vl：超值型产品，stm32f100系列
xl：超高密度产品，stm32f101/103系列
ld：低密度产品，FLASH小于64K
md：中等密度产品，FLASH=64 or 128
hd：高密度产品，FLASH大于128

- startup_stm32f10x_ld_vl.s: for STM32 Low density Value line devices
- startup_stm32f10x_ld.s: for STM32 Low density devices
- startup_stm32f10x_md_vl.s: for STM32 Medium density Value line devices
- startup_stm32f10x_md.s: for STM32 Medium density devices
- startup_stm32f10x_hd.s: for STM32 High density devices
- startup_stm32f10x_xl.s: for STM32 XL density devices
- startup_stm32f10x_cl.s: for STM32 Connectivity line devices