Datasheet

Building and debugging the application
PMSM Field-Oriented Control on MIMXRT1050 EVK, User's Guide, Rev. 0, 05/2018
NXP Semiconductors 13
Figure 6. IAR debug workspace
6.1.2. Release FLASH
This configuration links the application to the Hyper Flash memory. The optimization is set to the
highest level for speed. The significant difference (opposite to the Debug configuration) is the ability to
choose the functions which are going to be executed from the RAM. This feature is achieved by defining
one of the following appropriate symbols in “Preprocessor” (“Project->Options->C/C++ Compiler-
>Preprocessor tab, Defined symbols” box):
• RAM_OPTIM_LOW—the Real Time Control Embedded Software Libraries (RTCESL
www.nxp.com/rtcesl) are going to be executed from the RAM.
• RAM_OPTIM_MEDIUM—the motor-control fast-loop algorithms are going to be executed
from the RAM. These algorithms are executed periodically in the ADC conversion complete
interrupt. This interrupt has the highest priority level. When the interrupt is entered, the DC-bus
voltage and motor phase currents are read and the PMSM FOC algorithm is calculated. The
RAM_OPTIM_MEDIUM also includes the RAM_OPTIM_LOW symbol.
• RAM_OPTIM_HIGH—the slow-loop interrupt service routine (basically speed control, user
button, and so on) is going to be executed from the RAM. The RAM_OPTIM_HIGH includes
both the above-mentioned symbols.
You can also choose whether the Interrupt Vector Table (IVT) is going to be placed into the RAM or
Hyper Flash. To place the IVT into the RAM, define the following symbol in “Preprocessor” and
“Linker” (“Project->Options->Linker->Configuration file symbol definitions”):