1.14 DIVAS Override C Division Operator

The Divide and Square Root Accelerator (DIVAS) is a programmable 32-bit signed or unsigned hardware divider and a 32-bit unsigned square root hardware engine. The DIVAS takes dividend and divisor values and returns the quotient and remainder when it is used as divider. A simpler way of using the DIVAS is making it invisible to the programmer. This example application shows how to use the DIVAS Peripheral library to override C division and modulus operator. When compiler compiles the statements containing division operator (‘/’) and modulus operator (‘%’), it uses DIVAS APIs instead of C Library. Unfortunately, it is not possible for square root because square root does not have a C intrinsic operator.

To clone or download this application from Github, go to the main page of this repository and then click Clone button to clone this repository or download as zip file. This content can also be downloaded using content manager by following these instructions.

Path of the application within the repository is apps/divas/divas_c_operator_override/firmware.

To build the application, refer to the following table and open the project using its IDE.

The following table shows the target hardware for the application projects.

1. Open the Terminal application (Ex.:Tera term) on the computer
2. Connect to the EDBG Virtual COM port and configure the serial settings as follows:
   • Baud : 115200
   • Data : 8 Bits
   • Parity : None
   • Stop : 1 Bit
   • Flow Control : None
3. Build and Program the application using its IDE
4. Observe output message in console as follows: