If you've been looking for this, chances are you saw Frank's post on the subject, while it contains very useful information and he mentions reading JPEG, he didn't explain his approach in details, so here's my soultion.
First, let me reiterate the issue with JPEG and the STM32, as you already know JPEG images are compressed, so you don't know the exact image size beforehand, you expect to read it after a complete...
