[flashrom] Flashrom tutorial

Hi,   I would like to try and flash my chip with flashrom but i have no idea if this software works without external programmer. So am i able to use it without external programmer and if yes where is the tutorial on what files to download and what commands to use. I know my chip model is supported because when i used Afudos and FPT tool it showed my chipset model and its listed under flashrom tested and working models.