Posted on September 29, 2005 at 15:46I was wondering :
EMI use port P2.0 to P2.3 to generate CS0 to CS3 (corresponding to 4 banks EMI)
So we configure GPIO as follows :
GPIO_Config(GPIO2, 0x000F, GPIO_AF_PP);
But port P2.4 to P2.7 are also used to for address bits A20 to A23.
Do we have to configure these port pins to Alternate Function ?
Why don't we configure GPIO2 like this :
GPIO_Config(GPIO2, 0x00FF, GPIO_AF_PP);
Unless that the P2.4 to P2.7 remains undefined ?
What's wrong in my deduction ?
Thx,
Manu
