I am not sure how this might be possible, but I'd like to provide a web interface that allows to upload binary files and store them to flash for firmware updates (xcore firmware and additionally DSP/FPGA firmware/configs). The file size might exceed several Mbit, so I cannot buffer the whole file and write it to flash, but I also dont know how i might send the file in chunks (maybe there is a way to use js for this?)
Any ideas are very welcome!
Firmware Upgrade over Web
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DemoniacMilk
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Ross
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On the xcore side of things, you just write to an "upgrade image" as you receive it. The CRC and validity checking in the boot-code will deal with failed upgrades (and revert to the factory image). This avoids the requirement to buffer the whole image for checking.
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larry
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FPGA/DSP images will go into data partition, so you can write them in chunks by passing chunks into fl_writeData
If xCORE images are for the device that is writing them and so they should go into boot partition, you can write chunks by doing fl_startImageAdd, then repeat fl_writeImagePage and finally fl_writeImageEnd
If xCORE images are for the device that is writing them and so they should go into boot partition, you can write chunks by doing fl_startImageAdd, then repeat fl_writeImagePage and finally fl_writeImageEnd
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DemoniacMilk
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Okay thanks, I got how to store the data received.
But I am still confused how the xcore may receive the data. Will have to check, how file transfers work (maybe they are sent a seperate port?) and if those packets need to be managed manually or if they will go through the xtcp stack. Also, i need to write to flash (what takes quite some time) before I may accept the next packet, what ethernet/XTCP cant know (except if i manually delay the ACK: .. might result in a retransmit?).
But I am still confused how the xcore may receive the data. Will have to check, how file transfers work (maybe they are sent a seperate port?) and if those packets need to be managed manually or if they will go through the xtcp stack. Also, i need to write to flash (what takes quite some time) before I may accept the next packet, what ethernet/XTCP cant know (except if i manually delay the ACK: .. might result in a retransmit?).