HI there,
So what you have probably won’t work. WHich BSP are you using and which LIB for the display. You have the GC9A01 " driver " which LIB are you using , I would check the Seeed Round Display WiKI it’s info converts to what you want.
TFT_eSPI is the one you want but must be a specific one if your using and OLD example the New Version works with all the later BSP’s (2) only)
HTH
GL 
PJ 
Check out the demo’s on here with code for round display working with C6 AOK 