IAP commands not working after PLL set

richardrobson — Mon, 12 Mar 2018 15:35:44 GMT

Im using a lpc1549 and trying to use the IAP commands (particularly the eeprom read/write). This seems to work at the base 12MHz frequency, until I set the PLL to be 72MHz and set the main system clock to be PLL. It doesn't matter if I use the IAP setPLL function of my own bit twidding function. Then calling an IAP command results in a hardware error

Does this mean I can't use the commands if running at full speed? or is there something I need to do ?

Thanks for your help

Richard

Re: IAP commands not working after PLL set

victorjimenez — Tue, 13 Mar 2018 20:24:03 GMT

Hello Richard,

I just review the example of periph_iap provided in the LPCOpen, and the main system clock is set to 72MHz since the beginning and the example works fine. I recommend you to use this as a guide for your project to see which configurations you are missing.

Hope it helps!

Have a great day,

Victor.

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LPC MicrocontrollersのトピックIAP commands not working after PLL set

IAP commands not working after PLL set

Re: IAP commands not working after PLL set