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How to use an Isochronous IN endpoint to send a large package

HLian.11
Associate

My app run on the STM32F103 platform. An multiple channels audio stream,with about 768 bytes / ms, need to be send to the USB host. How can i do it with the only 512 byte package memory on chip ?

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3 REPLIES 3
waclawek.jan
Super User

You can't. Use a different STM32. Maybe you could transfer more packets per frame using bulk transfer.

JW

Are you sure that I can not send out a package larger than 512 bytes with an ISOChronous IN token ?

waclawek.jan
Super User

You can't if your mcu does not have more FIFO memory.

JW