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Recent content by caiomarcos

  1. C

    LPC1343 UART Not working in real hardware but working in Keil Simulator?

    I've been using the code supplied by NXP with the LPCXpresso, so I can only guess why one works while the other does not. The datasheet states: "In order for the update to take effect" after switching PLL input source "first write a zero to the SYSPLLUEN register and then write a one to...
  2. C

    LPC1343 UART Not working in real hardware but working in Keil Simulator?

    If you look closely, you will notice that they're not the same. On the one that is not working the PLL startup routine is incorrect. Look at lines 397 to 401 in system_LPC13xx.c of the working code and lines 389 to 391 of the not working one - it is missing a few lines in the PLL start up...
  3. C

    [ARM] How to start the PLL on LPC1343 PLL

    The AN mentioned deals with a complete different thing, and since it says that it is applicable to both LPC111x and LPC13xx, I believe they are not so different regarding UART functionality. After a quick glance, it looks like the clock generation block is very similar for both, including PLL...
  4. C

    [ARM] How to start the PLL on LPC1343 PLL

    Yes, I believe the .c and .h files with functions specific to each mcu are supplied by the vendor, at least that's what NXP does for the LPC1343. So, on the NXP website you can find a package (http://www.lpcware.com/content/nxpfile/lpcopen-software-development-platform-lpc13xx-packages) with...
  5. C

    [ARM] How to start the PLL on LPC1343 PLL

    I believe you meant you CAN NOT find that anywhere, and you won't. I said CMSIS but it is actually in a package supplied by NXP, sorry: http://www.lpcware.com/content/faq/lpcxpresso/cmsis-support You should look into system_LPC13xx. and LPC13xx.h for mcu specifics, such as the SystemInit...
  6. C

    [ARM] How to start the PLL on LPC1343 PLL

    Have you checked the CMSIS code for it? Here is the relevant part I think: void SystemInit (void) { #if (CLOCK_SETUP) /* Clock Setup */ #if (SYSCLK_SETUP) /* System Clock Setup */ #if (SYSOSC_SETUP)...
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