Why do I need two programs to burn into an FPGA?

乱世煮酒论天下

Why do I need two programs to burn into an FPGA? [Copy link]

Why do I need to use JTAG and Flash to program FPGA? What does this mean? I feel that programming FPGA is more troublesome than other chips. What is the fundamental reason?

卿小小

About "burning":

”jtag烧写“是将程序烧录到FPGA内直接运行，应用场景主要是调试；

”flash烧写“是将程序烧录到FPGA外挂的flash内，FPGA在上电时从flash内读取并加载程序，应用场景是发版、量产。

Is it more difficult to program FPGA than other chips?

1.对于初学者来讲，fpga的程序烧写比大部分芯片的烧录都要费事;
2.对于已经配置好的环境，可以基于脚本、批处理、python等进行烧录调试，十分便捷；
3.普遍来讲，FPGA的学习周期较长、效益不明显，不如嵌入式或者软件的学习效果立竿见影。
4.特别是随着FPGA应用场景的复杂度提升（例如异构、集成等），需要横向掌握的内容越来越多，但是也越来越有意思。

对于个人来讲，看实际诉求（毕设、课题、工作、兴趣等）决定是否需要学习FPGA。

beyond_笑谈

Qing Xiaoxiao published on 2024-5-22 20:46 About "burning": "jtag burning" is to burn the program into the FPGA and run it directly. The main application scenario is debugging; "fl ...

When I first started working, there were very few people working on ARM and FPGA, especially FPGA, which seemed a bit mysterious and high-end.