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mbedtls handshake failed 0x7780

Hey,I tried the SSL_Client mbedtls example program for the STM32f7 and I get following error:Handshake failed 0x7780Im trying to connect to a cloudflare server via https. Any ideas what the problem could be?thanks in advance

Anon767 by Associate II
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Connecting 2 16-bit SDRAM as one 32-bit SDRAM

Simple question: is this possible without additional HW logic? I have these two 16-bit SDRAMs and I'd hate to use just one of them or to use them as measly two 16-bit SDRAMs. I think I've browsed through all 3200+pages of reference manual and couldn'...

Slina by Associate III
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SPI - configure mode 0 (clck pol 0, phase 0) but the output is mode 2 (clck pol 1, phase 0) , with clock idle high

Hi all, I have a STM32F091CC and am using SPI2 on PortB, Pin 13-15.I configure polarity=0 and phase=0, but the trace in logic analyzer and oszi shows that the clock is idle high. I have already tried pullup, pulldown and nopull at CS pin, but with n...

Resolved! Can I use DMA to copy data in parallel with the MCU operation to/from (1) On-chip Flash, (2)Off-chip Flash (connected via Quad-SPI), or (3) Off-chip SDRAM (connected via FMC)? If possible, which one will be the fastest?

From the datasheet diagram (attached), it seems like the DMA has access to all of above. However, it is not clear whether it is really possible to DMA data to / from those and how I should do it and I've seen negative response to similar chips, so I ...

KMaen by Associate III
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