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Hello,
I connected FX3(master) to FPGA(slave) using AN82716 master_read_write_sync.cydsn project state machine. My main application is cyfxmscdemo which is available in the SDK example projects. I modified existing dma channels according to gpif.
I modified only GPIF Read State machine as follows: DO_IN_DATA state Repeat Count = 127. Because in the original project, it was sending only one 32 bit data and starts over again. I did not understand the meaning of FLAG_C here?. I'm tying this logic 1. In my case, FPGA sends 128 times 32 bit data and then it comes to READ_SHORT_PKT state (I assume).
I can achieve read10/write10 transactions.
However, I noticed that if numBlks in application exceeds 29, USB event 4(CY_U3P_USB_EVENT_RESET) is generated during read10 transactions after a while (not all the time). The transaction stops for seconds and application starts again.
Write10 is working fine without any resets.
What could be the reason of this USB_EVENT_RESET?
1) There should be enough space in DMA buffers. I think Max buffer size should be 65520 bytes. I observe errors after 29*512 = 14848 bytes.
2) I suspect from GPIF read state machine, since I modified it. Is there a meaning of sending one data and start over again in AN82716?
Thanks.
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Regards,
Mari
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Dear Yatheesh,
Sorry to bother you again.
After the last /RD signal problem was solved, no more underrun error.
But recently, all system combined test, I received error "No error : 18" from CY3014 uart port ,then, Xfer to FPGA failed.
Please kindly advise what is "No error : 18" ?
BR
Steven.
Show LessI've discovered that we can create blog posts. Can we just blog away if the post is about PSoCs in general? This would be a great way to summarize results that are combined from various resolved questions.
Show LessHi,
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Firmware and CLM blob information:
WLAN Firmware | : wl0: May 2 2019 02:46:20 version 7.45.189 (r714228 CY) FWID 01-105ab14e |
WLAN CLM | : API: 12.2 Data: 9.10.136 Compiler: 1.29.4 ClmImport: 1.36.3 Creation: 2019-05-02 02:31:24 |
Regards
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I am trying to connect CX3 to Image sensor.
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