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BF703 A boot stream via UART at a speed of 115200

Question asked by Makc on Nov 3, 2016
Latest reply on Jan 13, 2017 by Jithul_Janardhanan

Hi, we made our first printed circuit board with BF703 and found out a boot stream can't be loaded via UART at speeds above 57600. At a speed of 115200 the device returns <DF 89 00 80> as a response on '@' instead of the expected <BF xx xx 00>. Is this some error in our board or a boot stream just can't be loaded at a speed of 115200? The speed is supported by a BF707 evaluation kit. A crystal oscillator - 24 MHz; dividers are standard. UART clock - 18 MHz (judging by returned dividers); signal edges of '@' are accurate (was checked by a oscilloscope).