Gecko3 - CCC Event Weblog

E. Quellcode
132 }
for ( i = 0 x0000 ; i < 5 1 0 ; i++ ) // l oop SPI Flash data to EP6IN
{
EXTAUTODAT2 = readBlock ( ) ; // w r i t e data b y t e from SPI Flash to
d e s t i n a t i o n a d r e s s
EXTAUTODAT2 = lastBlockRead ( ) ; // w r i t e data b y t e from SPI Flash to
d e s t i n a t i o n a d r e s s
SYNCDELAY;
EP4BCH = 0 x02 ;
137 SYNCDELAY;
EP4BCL = 0 x00 ;
s p i f l a s h a d d r e s s =0x200 ;
}
f l a s h r d e n = 0 ;
142 }
// arm EP6IN
void b o o t l o a d c f g ( void )
{
BOOL busy ; // v a i a b l e f o r busy check
147 WORD i ; // counter f o r s t a r t u p sequence
unsigned long a d d r e s s = 0 , counter ; // s t a r t a d r e s s f o r read i n s t r u c t i o n , b y t e
counter
// Read t h e s w i t c h to d e t e c t in witch address range t h e c o n f i g u r a t i o n s h o u l d be
w r i t t e n
i f ( s w i t c h r d ( ) == highaddr memory range )
{
152 l e d w r (0 x06 ) ;
a d d r e s s = 0 x100000 ;
}
GPIFIDLECTL &= 0xF9 ; // b r i n g CS B , RDWR B low
157 PA5 = 0 ; // b r i n g Prog B low b r i n g s t h e d e v i c e in t h e i n i t a l i s a t i o n mode
// and h o l d i t t h e r e
PA5 = 1 ; // b r i n g Prog B b i t h i g h
162 while (PA4 == 0) // i f I n i t B goes h i g h t h e d e v i c e i s in t h e c o n f i g u r a t i o n
l o a d mode
{
;
}
167 IOB = startBlockRead ( a d d r e s s ) ; // d r i v e Port B with f i r s t data b y t e
GPIFIDLECTL &= 0xFE ; // b r i n g CCLK low
GPIFIDLECTL |= 0 x01 ; // b r i n g CCLK h i g h
172 for ( counter = 0 ; counter < ( f i l e s i z e −2) ; counter++)
{
IOB = readBlock ( ) ; // d r i v e Port B with data b y t e
GPIFIDLECTL &= 0xFE ; // b r i n g CCLK low
177 GPIFIDLECTL |= 0 x01 ; // b r i n g CCLK h i g h
// check f o r busy
do
{
182 busy = PA7 ; // read busy b i t
i f ( busy == TRUE)
{
GPIFIDLECTL &= 0xFE ; // b r i n g CCLK low
GPIFIDLECTL |= 0 x01 ; // b r i n g CCLK h i g h
187 }
i f (PA7 == TRUE) // i f DONE i s set , a b o r t t h e busy check because a f t e r
{ // c o n f i g u r a t i o n i s complete t h e DONE b i t has a undefined v a l u e
80 Matthias Zurbrügg, Christoph Zimmermann