Content originally posted in LPCWare by micronpn on Sat Apr 17 04:12:46 MST 2010
When LPC17xx (LPC1754 in my application) goes in a low power mode is impossible to reprogram the flash memory via jtag using LpcXpresso 3.2.3.
I made some checks and I found that the reset pin timing is critical, in my application I have a 5 seconds delay before the mcu goes in deep power down so I may manually reset my board and I force reset active until jtag starts to connect to the mcu so I am able to program the mcu. Without 5 seconds delay could be impossible to reprogram a mcu if it is in power down modes. May I hope that some one correct the reset pin management in LpcXpresso IDE to apply a 1 second reset signal and then activate the normal flash programming procedure?
