一般Jlink版本 和 Jag（硬件）最好匹配
安装Jlink 时，IAR的工具包也可以顺带安装。
有源码:
IAR 可以自动选择CPU型号，代码直接Download and debug
https://www.segger.com/products/debug-probes/j-link/
https://www.segger.com/downloads/jlink/
J-Link Software and Documentation Pack
J-Link Software and Documentation pack for Windows
Installing the software will automatically install the J-Link USB drivers and offers to update applications which use the J-Link DLL. Multiple versions of the J-Link software can be installed on the same PC without problems; they will co-exist in different directories.
V6.40
Older versions
[2018-10-26] 33,072 KB DOWNLOAD
J-Link Software and Documentation pack for macOS
V6.40
Older versions
[2018-10-26] 28,110 KB DOWNLOAD
J-Link Software and Documentation pack for Linux, DEB installer, 32-bit
V6.40
Older versions
[2018-10-26] 20,139 KB DOWNLOAD
J-Link Software and Documentation pack for Linux, DEB installer, 64-bit
V6.40
Older versions
[2018-10-26] 28,203 KB DOWNLOAD
J-Link Software and Documentation pack for Linux, RPM installer, 32-bit
V6.40
Older versions
[2018-10-26] 20,144 KB DOWNLOAD
J-Link Software and Documentation pack for Linux, RPM installer, 64-bit
V6.40
Older versions
[2018-10-26] 24,521 KB DOWNLOAD
J-Link Software and Documentation pack for Linux, TGZ archive, 32-bit
V6.40
Older versions
[2018-10-26] 20,188 KB DOWNLOAD
J-Link Software and Documentation pack for Linux, TGZ archive, 64-bit
V6.40
Older versions
[2018-10-26] 28,265 KB DOWNLOAD
J-Link Software and Documentation pack for Linux ARM systems
V6.40
Older versions
[2018-10-26] 13,584 KB DOW
最新版是jlink V640 没有包含老的jflash模板文件
jlink V4.9包含了 STM32F103RC.jflash 模板文件
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烧录步骤（没有源码）：
打开jflash open project=》 从安装目录中选 【安装目录】=》【ST】=》【STM32F103RC.jflash】
具体可以根据自己的CPU来选择。
再打开HEX 二进制文件，再烧录进去[F5]， => start application[F9]
若 没有选择jflash 模板（不知道CPU信息） ，CPU信息选择【auto 】 可能 提示找不到CPU