Cypress FX2LP - Manuals

February 19, 2008 Document No. 001-15342 Rev. ** 5 AN6077 The firmware uses the AUTO mode for both IN and OUTtransfers. This means that the maximum size (512 bytes)packets are committed automatically from the peripheraldomain to the USB domain for OUT transfers. For IN trans-fers, they are committed...

February 19, 2008 Document No. 001-15342 Rev. ** 6 AN6077 IOA = 0x80; xFIFOTC_OUT = ( ( EP2FIFOBCH << 8 ) + EP2FIFOBCL ); // setup GPIF transaction count SYNCDELAY; EP2GPIFTCH = EP2FIFOBCH; SYNCDELAY; EP2GPIFTCL = EP2FIFOBCL; // trigger FIFO write transaction(s) SYNCDELAY; GPIFTRIG = GPIFTRIGW...

February 19, 2008 Document No. 001-15342 Rev. ** 8 AN6077 Code Listing for Master Side #pragma NOIV // Do not generate interrupt vectors#include "fx2.h"#include "fx2regs.h"#include "fx2sdly.h" // SYNCDELAY macro extern BOOL GotSUD; // Received setup data flagextern BOOL Sleep...

February 19, 2008 Document No. 001-15342 Rev. ** 11 AN6077 // setup GPIF transaction count SYNCDELAY; EP2GPIFTCH = EP2FIFOBCH; SYNCDELAY; EP2GPIFTCL = EP2FIFOBCL; // trigger FIFO write transaction(s), using SFR SYNCDELAY; GPIFTRIG = GPIFTRIGWR | GPIF_EP2; // once master (GPIF) drains OUT packet, it ...

February 19, 2008 Document No. 001-15342 Rev. ** 17 AN6077 }void ISR_Ep8fflag( void ) interrupt 0{}void ISR_GpifComplete( void ) interrupt 0{}void ISR_GpifWaveform( void ) interrupt 0{ // FIFORd WF detected peripheral prematurely empty (less than max. pkt. size) GPIFABORT = 0xFF; // abort to handle ...