Buffer size

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
Anonymous
Not applicable
        Hi, I would like to know about the following relations. *Buffer size at GPIF2 Designer Timing tab. *dmaCfg.count(dmaCfg = CyU3PDmaChannelConfig_t). *Max packet size of Bulk endpoint On what buffer size does size change of Buffer size(GPIF2 Designer Timing tab) have influence? Best Regards, Kochi   
0 Likes
6 Replies
Anonymous
Not applicable

 Buffer size at GPIF II designer tab is just to get the timing waveform.

   

It is not going to get updated any where. dmaCfg paramters in the firmware decides the DMA buffer size. 

0 Likes
Anonymous
Not applicable
        Thank you. \n Please let me ask a question one more. How is WaterMark Value changed at SDK or GPIF Designer? Best regards, Kochi   
0 Likes
Anonymous
Not applicable

Use API CyU3PGpifSocketConfigure.

   

For more details on this please refer to 18th page in gpif2_designer_userguide.pdf and 506th page in FX3APIGuide.pdf

0 Likes
Anonymous
Not applicable
        Thanks! I would like to know about the following parameters:[watermark][burst]. I use 32bit bus width. In this case, what does a watermark value become?    For example, I would like to assert a flag by 80% of buffers.   
0 Likes
Anonymous
Not applicable

Please have a look at the below mentioned thread:

   

http://www.cypress.com/?app=forum&id=167&rID=62744

0 Likes
Anonymous
Not applicable
        Dear RSKV, Thanks. I understood it.   
0 Likes