MG32F10x Standard Peripherals Firmware Library
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*************** (C) COPYRIGHT 2020 - 2023 megawin Technology *************** * @file DMAC/DMAC_UartToMemory_MultiBlock/readme.txt * @author megawin Application Team * @version V0.1.10 * @date 05-January-2023 * @brief Description of the DMAC DMAC_UartToMemory_MultiBlock example. ****************************************************************************** * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE * TIME. AS A RESULT, MEGAWIN SHALL NOT BE HELD LIABLE FOR ANY DIRECT, * INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM * THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. ******************************************************************************
This example describes how to use DMAC to continuously transfer data received by UART to Memory.
In this example, Main clock is from PLL clock and it is configured at 96MHz. The PLL clock is based on 8MHz HSE. APB1 and APB2 clock is from Main clock.
In this example, UART2->RBR is used as the source of DMA transfer, and memDst is used as the target of DMA transfer. DMAC2 Channel 0 enables the automatic target reload function. Whenever a Block transfer is completed, the target address will be reloaded, so that the transfer from UART to Memory is continuous. When this example runs, it will print out relevant information through UART1, and enter any character to start DMA transmission. Then every time the PC sends 40 characters to UART2, it will print out the string received from UART2 from UART1.
In order to make the program work, you must do the following :
Run the example