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I can see that you have commented this API in your firmware.Ħ.PRODUCT DESCRIPTION: Mimio Digital Meeting Assistant Electronic Whiteboard Condition: unused Box opened for photos. You can check the device status after every write and read transfers using CyU3PI2cWaitForAck API. Why do not you increase it to 512 bytes to speed up the operation?ĥ. When the device is operating in USB 3.0, the ep0_buffer size is 64 bytes. I hope that you have referred these example FWs.Ĥ. We have an example firmware which does similar job as yours but write and read to/from I2C EEPROM in the SDK: C:\Program Files (x86)\Cypress\EZ-USB FX3 SDK\1.3\firmware\serialif_examples If yes, what are your observations when you compare both the logs? How much amount of data that the device received successfully before it disappears from the control center (in USB 3.0 mode).ģ. Also increase the UART Baud Rate so that UART functions at higher speeds.Ģ. I recommend you to remove the unnecessary debug prints in the call back section and check the behavior. This may affect the performance when the device is operating at USB 3.0 mostly.ġ. I can see that you have enabled many Debug Prints in the call back section.
Is there another way to know the firmware status with your IDE? In addition, I have no idea which part makes problems, so I'd like to see the status of FX3 firmware by pausing in Cypress IDE, but pause button is unable. Every returned values from functions are CY_U3P_SUCCESS, But sometimes FX3 doesn't answer me. Next, in FX3, my thread get that packets by callback function ( registered by CyU3PUsbRegisterSetupCallback() ).Īfter then, just get data ( by CyU3PUsbGetEP0Data() ), send those to device by I2C ( CyU3PI2cTransmitBytes() )ġ.
I want to send about 600KB data by Control transfer from PC Application to my device.Īfter open file from PC, data size sliced to 64KB and then transfered sequentially. I got referenced by your USBBulkSourceSink example. No devices captured in control center, so I have to unplug&plug USB cable again. Sometimes I lost fx3 control, during control transfer from host( Win7 ) to device( fx3 ) on USB3.0 port ( USB 2.0 port works well always )