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8-Bit Parallel MPEG2-TS transfer at slave fifo autoin mode lose package

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8-Bit Parallel MPEG2-TS transfer at slave fifo autoin mode lose package

	mozhi posted on 01 Nov 2011 5:52 AM PST Member 4 Forum Posts

Hi,all

MPEG2-TS------>CY7c68013------>PC

recently,i am doing a job which mpeg2-Ts stream Transferred to a computer.i used cy7c68013a-56 chip,endpoint2 bulk in 4xbuffer.Frimware，i reference to http://www.cypress.com/?rID=39714

my question is:

When I received the usb pass over the data and stores it into a TS file, i found about 1/3 data lost.

Driver: ezusb.sys

frimware:

CPUCS = 0x10; // CLKSPD[1:0]=10, for 48 MHz operation

SYNCDELAY;

REVCTL=0x03;

IFCONFIG = 0xCB; // IFCLK Source internal (i.e.) Gated MPEG_CLK, MPEG_CLK is connected to SLWR

// FX2LP in SLAVE FIFO Mode

SYNCDELAY;

FIFORESET = 0x80; // activate NAK-ALL to avoid race conditions

SYNCDELAY; // see TRM section 15.14

FIFORESET = 0x82; // reset, FIFO 2

SYNCDELAY; //

FIFORESET = 0x84; // reset, FIFO 4

SYNCDELAY; //

FIFORESET = 0x86; // reset, FIFO 6

SYNCDELAY; //

FIFORESET = 0x88; // reset, FIFO 8

SYNCDELAY; //

FIFORESET = 0x00; // deactivate NAK-ALL

SYNCDELAY;

PINFLAGSAB = 0x00; //

SYNCDELAY;

PINFLAGSCD = 0x00; //

SYNCDELAY;

PORTACFG = 0x00; //

SYNCDELAY;

FIFOPINPOLAR = 0x04; // SLWR is configured as active HIGH : Can be changed to 0x00 for SLWR to be active Low

SYNCDELAY;

EP2CFG = 0xE0; // VALID - 1,DIR - IN,Type- Bulk, Size - 512 Bytes, Quad Buffered

SYNCDELAY;

EP4CFG = 0x00; // clear valid bit

SYNCDELAY; //

EP6CFG = 0x00; // clear valid bit

SYNCDELAY; //

EP8CFG = 0x00; // clear valid bit

SYNCDELAY;

EP2FIFOCFG = 0x08; // AUTO IN, NO Zero Length Packets, 8- bit Wide

SYNCDELAY;

EP2AUTOINLENH = 0x02; // Auto-commit 512-byte packets

SYNCDELAY;

EP2AUTOINLENL = 0x00;

SYNCDELAY;

OEA |= 0x30;

IOA &= ~20;

I beg your reply......

Re: 8-Bit Parallel MPEG2-TS transfer at slave fifo autoin mode lose package

	aasi posted on 03 Nov 2011 08:29 PM PST Cypress Employee 1090 Forum Posts

Please look at http://www.cypress.com/?app=forum&id=167&rID=55586

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8-Bit Parallel MPEG2-TS transfer at slave fifo autoin mode lose package

Re: 8-Bit Parallel MPEG2-TS transfer at slave fifo autoin mode lose package