Lincoln FAQ
From Manuals
Contents |
Frequently Asked Questions - Hardware
Are digital inputs compatible with 5V logic?
Yes. On the LPC1769 microcontroller the high-level input voltage (VIH) has a minimum of 2.3V (70% of VCC) and a maximum of 5.0V. The low-level input voltage (VIL) has a minimum of 0V and a maximum of 1V (30% of VCC).
What are the maximum data rates for on-board ADCs and DACs?
Frequently Asked Questions - Software
Can I develop and debug code for the Lincoln using a Linux PC? a Mac OS X workstation?
Yes. CodeBlocks, Eclipse, OpenOCD and GNU cross compilers for ARM are available for Windows, Linux and Mac OS X. EWARM is only available for Microsoft Windows.
What filesystem types, volume size and filename formats are supported on microSD cards?
The code examples use the FatFS 0.04b library which supports FAT12, FAT16 and FAT32 filesystems. We have tested 4GB microSD cards but the library supports larger volumes. The filename format is 8.3. Long file names are implemented in FatFS 0.07 or above.
Why are certain source code statements not executed when single stepping?
When you enable code optimization, the object code does not necessarily follow the same sequence as the source code. Optimizing compilers like IAR or GCC use loop unrolling, loop collapsing, branch elimination and other techniques that rearrange code to increase execution speed and/or reduce code size. A common practice during development is to disable optimization when debugging. Compiler optimizations should normally be enabled after most of the debugging is done and the code is stable. For a more consistent debugging environment, the StellarisWare driver library should be compiled with the same options and compiler version as the application.