Yes, you can, but please be aware that our drivers are highly optimized and will be much more faster than your own driver.
A emWin driver costs around 1000 euro, so it is a good choice to buy one and not to try to develop your own driver.
Keep in mind, this is *not* a support forum.
Our engineers will try to answer your questions between their projects if possible but this can be delayed by longer periods of time.
Should you be entitled to support you can contact us via our support system: segger.com/ticket/ Or you can contact us via e-mail.