R rv6502 Member Joined Aug 9, 2009 Messages 153 Oct 28, 2009 #1 can the system read large blocks of SD data while the CPU is doing other things or the CPU needs to keep close watch on the hardware during transfers ?
can the system read large blocks of SD data while the CPU is doing other things or the CPU needs to keep close watch on the hardware during transfers ?
notaz Certified Guru Joined Aug 23, 2005 Messages 4,915 Location Lithuania Website notaz.gp2x.de Oct 28, 2009 #2 Yes it's DMA, it does need to handle things like end-of-transfer interrupts but that shouldn't take much CPU.
Yes it's DMA, it does need to handle things like end-of-transfer interrupts but that shouldn't take much CPU.