DMAC memory transfer

This example application demonstrates how to use the DMAC peripheral to do a memory to memory transfer.

Description

The application uses a software trigger to initiate a memory-memory transfer from the source buffer to the destination buffer with 16-bit beat size and 32-bit beat size. Transfer status is reported on console.

Downloading and building the application

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/dmac/dmac_memory_transfer/firmware .

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

Setting up the hardware

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

Setting up PIC32MM USB Curiosity board

• To run the demo, the following additional hardware are required:
  • USB UART click board
• Connect micro USB cable to the ‘USB1’ on the board to the computer
• Install an USB UART click board on to the mikroBUS socket J4
• Connect mini USB cable between PC and the USB UART click board
  • Note: Ensure that the series resistors on the mikroBUS headers are of value 0 Ohms

Running the Application

1. Open the Terminal application (Ex.:Tera term) on the computer
2. Connect to the “USB to UART” 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 project using its IDE

4. Following message is output on console:

   

5. The LED indicates the success or failure:
   • The LED is turned ON when the DMAC memory transfer is successful

Following table provides LED names:

---