![]() ![]() The reference guide for CyAPI.lib is available at C:\Program Files (x86)\Cypress\EZ-USB FX3 SDK\1.3\doc\SuiteUSB\CyAPI.pdf and the reference guide for CyUSB.dll is available at C:\Program Files (x86)\Cypress\EZ-USB FX3 SDK\1.3\doc\SuiteUSB\.įor Bulk transfers cyusb3.sys sets the limit to 4MB. Please refer to GetXferSize API in CyApi Programmer's reference or Xfersize() in CYUSB.NET programmer's reference which mentions maximum transfer size limit set into cyusb3.sys driver. After some debugging I found that more than 4MB data( ~17MB) is requested by the host application.
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