Frequently Asked Questions - lpc177x_8x
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Why the USB Secondary Boot Loader from AN10866 doesn't work on Linux / Mac PCs ?
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How to calculate the value of crystal load capacitors?
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DMAReqSel on LPC17xx indicates UART0/MAT0.0, can both be used simultaneously to trigger a DMA request?
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Is there an LPC17xx IAP example?
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How can I identify the Ethernet MAC ID to differentiate between 23xx/24xx/17xx?
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Do the LPC17xx and LPC18xx have USB Flash loader like the LPC1343?
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In the case where a UART Framing error occurs, is it possible to Reset/Restart the UART core after detecting this Framing error?
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After a software reset like WD reset, BOD reset, is the SRAM content retained?
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Is there any G.729 codec implemented for any Cortex-M3 cores?
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Are there any DSP libraries available for the Cortex-M3 microcontrollers ?
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When I start debugging (using LPCXpresso, Keil, IAR), I noticed that my program started in the bootROM area (0x1FFF_xxxx) although the program download is done and verification is correct
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Is there a feature to do error correction for UARTs on LPC17xx?
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Do the CAN controllers on LPC17xx have a Time Stamp function ?
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Do the CAN controllers on LPC17xx have a Time Stamp function ?
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We are using a voltage divider circuit to the ADC Vref, but seeing a leakage resistance to ground. Is it safe?
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The datasheet mentions that the SCL0 and SDA0 pins require external pull-ups regardless of PINMODE / IOCONF / PINSEL configuration. But on SCL1, SDA1, SCL2, and SDA2 look to be able to use an internal pull-up ?
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Has FatFS been ported to the LPC17xx ?
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The static current measurement on VDDA of LPC175x is around 2mA when ADC 12bit is enabled. Is this normal?
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What is the significance of Ethernet Symbol Error bit on LPC1768 in Receive Status Information in the User’s Manual? The description of this bit states that “The PHY reports a bit error over the PHY interface during reception
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Is there a power supply sequence for LPC17xx?
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When using RTC, where should I tie VSSA and VSS on 17xx?
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How long can short-circuit output current flow before damaging the microcontroller?
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What can be done to improve the accuracy of ADC readings?
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How do I configure Lpcxpresso to place code in RAM?
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The datasheet mentions the I/O pins are 5V tolerant if Vdd is present. Can you explain in detail what this implies?
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How can software detect that the external oscillator does not work, and it should use the internal RC oscillator instead, and report this as an error?
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Is there any port for an NXP Cortex evaluation board that support the .Net Micro Framework? Is NXP or any third party supporting the .NET Micro Framework?
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What are the various ways the LPC17xx can be woken up from a low power mode?
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What is the required accuracy for the regulator input to the LPC17xx?
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What is the importance of the internal regulators on LPC176x? Specifically, what is the accuracy of the internal regulators?
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Is it possible to sample two analog signals at the same time on a Cortex-M3 device?
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Where should I go for LPCXpresso related support?
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What platforms are supported by LPCXpresso?
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How many breakpoints and watchpoints are supported on LPC17xx and other Cortex-M3 devices?
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How should the VBAT and RTCX1 pins on LPC17xx be configured when the RTC is not used?
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about the u-boot-2011.06 for lpc1788!
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Is the LPC1788 pin compatible with the LCP2478?
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If the LCD controller has a lower priority on the EMC bus, refreshes will be stalled. How noticable is this on the screen?
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Will using a 16-bit external bus be too slow for LCD, causing tearing to occur?
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Do you have size limit or memory size calculator to help set the size of the frame buffer?
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Are the LCD controller signals LVDS?
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Is there dedicated on-board SRAM memory specifically for the frame buffer?
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Is the LCD DMA located in the LCD macrocell or the GP DMA ?
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Is the LCD DMA a gather scatter DMA ? Where is it located exactly ?
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Assuming I am using the EMC for both accessing the LCD buffer and external flash, where I have my executable code stored, how will execution time be affected?
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Is the frame buffer inside the 1788 or in an external device?
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Is it feasible to run the LPC1788 at 1024x768 at 24bpp? Or, does the bus width mitigate the maximum resolution at 24bpp and/or maximum color depth at 1024x768?
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How is the LPC2478 32-bit External Memory Controller different than the LPC1788 32-bit External Memory Controller?
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