USB low-full-high speed peripherals Forum Discussions

Hi,all,

the first word of the first time transfer is uncertain.

I set the EP2 as the auto in mode. I set the all FIFOPINPOLARs  as  active high, and the FIFOPINPOLARs pins are pulldown with a resistor. I carefully checked the source code that generates SLWR signal. I'm sure it doesn't generate extra active SLWR signal.

Even I  reset the fifo at the beginning of  transfer, the first word is till uncertain. I don't know why it is .

So I Think if I can reset the fifo pointer the problem might be solved. So dose anybody knows how to reset the fifo pointer?

hi all,

im a new user of CY7C67300 cotroller provided in the ML605 kit.Though i have downloaded the necessary softwares and drivers from the CYPRESS website but nothing seems to work.I want to send data from PC to FPGA through CY7C67300.Is there any documentation available for the same

We have a controller built around the old Anchor chips AN2131QC.  Once it was functioning with the monitor running we compiled a driver using the ezloader method to download the firmware to the board, the board executes the firmware then renumerates, and a communications driver is loaded.

Up until now we have been able to generate new .sys files whenever we revised the firmware and the customer only had to copy the .sys file to the system32\drivers directory and reboot to have the controller running new firmware.

I am trying to find a way to compile a 64 bit version of the firmware and would appreciate any information available for doing that.

Thank you,

Rex Peterson

rex.peterson@omax.com

Does someone have the TD_Init() code for autoout?
I configure the antoout mode as follows:

^&^&^&^&^&^&^&^&^&^&^&&^&^&^&^&^&^&^&^&^&^&^&^&^&^&^&^&^&^&^&^&
Typically, a FIFO is configured for Auto-Out mode as follows:
1. Configure bits IFCONFIG[7:4] to define the behavior of the interface clock.
2. Set bits IFCFG1:0=11.
3. Reset the FIFOs.
4. Set bit EPxFIFOCFG.4=1.

^&^&^&^&^&^&^&^&^&^&^&&^&^&^&^&^&^&^&^&^&^&^&^&^&^&^&^&^&^&^&^&

however,I send 1024 bytes with Cyconsole.exe , the out transfer are failed.

I remember that in the AUTO-IN mode ,i set the AUTOINLENH:L. But in the AUTO-OUT mode, i can't find the relevant register.

anyhow, does someone have the TD_Init() code for autoout?

Stop me if you're heard this one before. I need to fix a hardware issue in software. <G>

I need to wiggle the SCK signal on a FX2 while the SDA line is being held low. I am assuming that SDA being held low results in BERR error status bit being set and no I2C data transfer occurs, thus no clocking to clear the stuck I2C peripheral. Since SDA and SCK are not also GPIO pins there seems no way to do this. Is there some double secret handshake way of getting SCK to give me some edges?

TIA,

Neal

Once I have encountered such a problem: all the bytes I write into the FIFO are zeros.

I found external microprocessors  can't drive 68013A's databus easily. even the external microprocessors drive all the databits high. the voltage on the databus is only 0.7 volt. 

it's so strange.

so i was angry, i added the 16244a to drive the  datat bus, that time the 16244a finally drive the data bus to high as i want.

however, the 68013 is very hot.

it became stranger.

I read the datasheet of 68013 again. i found out the 68013's digital gate is CMOS gate, it can be drive high easily theoretically.

I don't know why it is so.

finally one time i found out the SLOE is unconnect, immediately i understand that i set  the SLOE is active high ,but the unconnect pin is always about 2.4volt.

so i pull down the SLOE pin . and the problem is resolved.

Hi,all

I encounter the problem the first word of the transfer is uncertain this afternoon. finally I find out where the bug is, here I share it to you all.

the problem may appear when you configure the SLWR active high.

we know the default configuration of FIFOPINPOLAR is active low. so it is active low before you change it. but you may have the mistake that the SLWR is always active high. so you initiate and generate the SLWR signal as it active high all the time. but this would write one word into the FIFO when you configure the SLWR active high. so the first word always seems uncertain

Hi,all,

Many days ago I designed the automatically downloading function in my VC application software on the application software running. It was successful everytime.

Yesterday  I added many functions in the firmware code,   Strangely after the VC application software run the firmware didn't run. To judge which secton the problem is in, I downloaded the .hex file (firmware) by Cyconsole.exe. The firmware was running after the downloading. So the problem was in my automatically downloading function in my VC application software. The firmware is right. 

But the strange thing is the automatically downloading function can download the firmware I designed before yesterday. I observe the differences of the .hex files. I found the firmware which can't be downloaded is larger than the others. Its file size is 14KB, the others are about 10KB.  So this could be the problem. But I don't know how to solve it. Can anybody help me?

Thanks & Best regards,

 Hello

I'm looking for an Utopia to USB successfull example or application note

Is someone has done this ?

Best regards

Nicolas.