Gecko3 - CCC Event Weblog

E. Quellcode
141 //OEA |= 0x0C ; // i n i t i a l i z e PA3 and PA2 p o r t i /o p i n s as o u t p u t s
//PORTECFG = 0x07 ;
}
void TD Poll ( void ) // c a l l e d r e p e a t e d l y w h i l e t h e d e v i c e i s i d l e
146 {
i f ( ! ( EP2468STAT & bmEP2EMPTY ) ) // i f t h e r e ’ s a p a c k e t in t h e p e r i p h e r a l
domain f o r EP2
{
i f ( fpga cfg m ode == TRUE) // vendor command 0xC1 f o r FPGA c o n f i g u r a t i o n
mode
{
151 f p g a c f g i n i t ( ) ; // i n i t a l i z e i /o l i n e s f o r FPGA c o n f i g u r a t i o n mode
( f u n c t i o n in f p g a c f g f u n c . c )
f p g a c f g ( ) ; // c a l l FPGA c o n f i g u r a t i o n prozedure ( f u n c t i o n in
f p g a c f g f u n c . c )
}
i f ( eeprom write mode == TRUE) // vendor command 0xC2 l o ad firmware in EEPROM
156 {
eeprom wr ( ) ; // c a l l EEPROM w r i t e
}
i f ( s p i f l a s h w r i t e m o d e == TRUE) // vendor command 0xC4 l o ad FPGA
c o n f i g u r a t i o n in SPI Flash , v a l u e in EP0 i s c o n f i g u r a t i o n p a r t (0 or 1)
−−−−>> to do
161 {
s p i f l a s h w r ( ) ; // c a l l SPI Flash w r i t e
}
}
166 i f ( eeprom read mode == TRUE) // vendor command 0xC3 read firmware from
EEPROM, v a l u e in EP0 i s number o f b y t e s to read
{
eeprom rd ( r e a d c o u n t ) ; // c a l l EEPROM read
}
171 i f ( s p i f l a s h r e a d m o d e == TRUE) // vendor command 0xC5 read FPGA
c o n f i g u r a t i o n from SPI Flash , v a l u e in EP0 i s number o f b y t e s to read
{
s p i f l a s h r d ( ) ; // c a l l SPI Flash read
}
176 i f ( ! ( EP2468STAT & bmEP6EMPTY ) ) // i f t h e r e ’ s a p a c k e t in t h e p e r i p h e r a l
domain f o r EP6
{
gpif wr waveform ( ) ; // c a l l f u n c t i o n to s t a r t a GPIF FIFO WRITE
Transaction ( f u n c t i o n in g p i f r d w r f u n c . c )
i n e n a b l e = TRUE;
}
181 i f ( i n e n a b l e ) { // s t a r t communication
g p i f r d w a v e f o r m ( ) ; // c a l l f u n c t i o n to s t a r t a GPIF FIFO READ
Transaction ( f u n c t i o n in g p i f r d w r f u n c . c )
}
186 i f ( ! ( EP01STAT & bmEP1OUTBSY) )
{
// handle OUTs to EP1OUT
}
191 i f ( ! ( EP01STAT & bmEP1INBSY) )
{
// handle INs to EP1IN
}
}
66 Matthias Zurbrügg, Christoph Zimmermann