Hi Monica, Sorry for the late reply as I was out of office and just got back. [quote userid="577647" url="~/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1408633/msp432e401y-how-to-manually-control-ale-in-epi-hb16-mode/5408501#5408501"]This is similar to the previous issue where CS2 and CS3 are fine and other two chip selects having the issue of getting stuck in while(1) of default handler while accessing addresses more than 128.[/quote] Can you be specific which default handler you are referring to? Are you referring to the IntDefaultHandler()? If yes, it means you did not provide a interrupt vector for EPI. //***************************************************************************** // // This is the code that gets called when the processor receives an unexpected // interrupt. This simply enters an infinite loop, preserving the system state // for examination by a debugger. // //***************************************************************************** static void IntDefaultHandler(void) { // // Go into an infinite loop. // while(1) { } }
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