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11 years, 4 months ago. This question has been closed. Reason: The answer fixed the problem
FDRM-K64F Not working RED LED blinking after reset button
FDRM_K64F Board was working and running my very simple programs.
All of a sudden it would no longer load and run my simple programs. After reset RED LED blinks
Went thru firmware reload of "k20dx128_k64f_if_mbed" to disk "bootloader.htm"..
Still same problem after reset to disk "mbed.htm" RED LED is blinking about 3 or 4 times a second.
Noticed when hitting reset a red led lights on
next to green status led when holding reset down.
Any suggestions to getting back to loading programs.
2 Answers
11 years, 4 months ago.
If you fall off the end of main() you will get this too.
Have you made sure that main() never exits?
11 years, 4 months ago.
That looks like the error blink, via the usb serial connection you are probably getting a message. Most times it is due to making for example SPI on pins which do not support SPI. Otherwise try example blink programs, or post your code here.