USB low-full-high speed peripherals Forum Discussions

Due to the termination of deliveries of memory of K9K8G08U0D decided to replace this memory with memory of K9K8G08U0F with the built-in support of ECC. Comparison of datasheet on these chips showed that there are differences in time response characteristics. Prompt whether support of these chips is planned and also whether it is possible as that to correct a firmware for work with this flash-memory.

Hi Community,

I am using Fx2LP CY7C68013A.

According to AN15456_Guide_to_a_Successful_EZ-USB_FX2LP_Hardware_Design  :

Resonator Requirements

The FX2LP crystal requirements are as follows:

▪ 24 MHz

▪ Parallel resonant

▪ Fundamental mode

▪ 500-μW drive level

▪ 12-pF (5 percent tolerance) load capacitor

Cypress specifies resonator frequency tolerance as ±100 ppm to take into account other circuit factors that can add to the USB ±500-ppm tolerance budget such as circuit board layout, temperature, load capacitors, and crystal aging. One resonator manufacturer, Murata, offers CERALOCK® series resonators with initial accuracies of 70 ppm and 100 ppm. For FX2LP, a Murata part number may be encoded according to Table 2.

I have tried to find crystal for all the above listed requirements but there is no available parts which can satisfy ALL the above specifications .

So can anyone suggest crystal oscillator os some specs that can be overlooked?

Also I have gone through  : Re: Finding an appropriate crystal for CY7C68013A (FX2LP)

according to that part  ECS-240-20-4 can be used but its also obsolete.

Dear Cypress Community,

We have a customized board using CY68013, which is the same as the schematic of FX2LP.

We program the bulkloop example (bulkloop.iic) into the eeprom of FX2LP using cyconsole.exe, and we found that the usb failed to enumerate, and if I open cyconsole.exe again, tries to rewrite the EEPROM, it reports an error says that access vioalation. Later on, we found that, the bulkloop example contains

EZUSB_WriteI2C();

EZUSB_WaitForEEPROMWrite();

command (see: Why Certain EZ-USB® FX2LP™ DVK Firmware Examples Fail Enumeration on Custom Boards? – KBA86725 )

The problem is, this bulkloop.iic with WriteI2C and WaitForEEPROMWrite has been already programmed into the EEPROM. How could I reset, or clear, or reprogram the eeprom and bring the I2C function (i.e., write into EEPROM using cyconsole.exe) back?

Thanks!

Benyuan

I am currently looking for the current signed driver for the CY7C68013A-128AXC to include with our software installer.  The current EZ-USB FX3 SDK shows version 1.2.3.20 where as there is a windows update for at least the x64 version to 1.2.3.26.  We are experiencing at intermittent times when the device will disconnect itself from the software which requires our software to have to be restarted and the device re-enumerated and would like to verify we have the current version driver to rule out any driver issues.

Step 3, this driver was not attached.

Really annoyed me.

Hello,

          We are working on FX2LP interfaced with image sensor when we transfer data from FX2LP to PC using Controlcenter the data is not coming consistently (i.e., data loss ) What is the reason for shifting of data in Windows 10 , even after updating drivers to windows 10(64 bit)

Thanks & Regards,

Veerendra

Hello all,

I read the whole CY7C68013 EZ-USB® FX2™ USB Microcontroller High-Speed USB Peripheral Controller user manual, It's always written the data bust width could be 16 or 8 bits. But how to configure it, never mentioned.

I'm just wondering how to change the data bus width from 16 bits to 8 bits on CY7C68013????

Any help is highly appreciated.

Arash

Hello.

after install the driver, the device still can't be recognized.

Many approaches have been tried and failed.

can anybody give me some useful suggestions?Thanks so much!

大家好，

         目前我正在使用cypress usb的板子进行上位机开发，我每次都得开机点击F8 选择禁止驱动签名才能正常连接usb。这样很麻烦。有什么办法可以解决掉这个问题吗？因为发布到别人电脑上时，这么做很不人性化。。谢谢。。