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Program the K2 family chip

Question asked by Daniel Cheng on Feb 3, 2016
Latest reply on Feb 15, 2016 by Kerry Zhou

Hi,  we started a new project using K20 sub-family chip (MK20DN32VLH5).  From the datasheet (K20P64M50SF0), Ezport (JTAG) is the serial interface to use in order to flash (erase, program, verify) the chip initially during the first power-on test.  But since this family has USB communication interfaces available, and the bootloader is one of the built-in features, can we program  the chip over USB serial connection from PC instead?  In other words, do we have to use JTAG interface with cyclone flash programmer to program the chip every time?  Thank you very much.

 

DC

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