/*
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* Copyright (c) 2019-2023 Beijing Hanwei Innovation Technology Ltd. Co. and
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* its subsidiaries and affiliates (collectly called MKSEMI).
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into an MKSEMI
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* integrated circuit in a product or a software update for such product,
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* must reproduce the above copyright notice, this list of conditions and
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* the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of MKSEMI nor the names of its contributors may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* MKSEMI integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be
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* reverse engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY MKSEMI "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL MKSEMI OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "mk_dma.h"
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#include "mk_trace.h"
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#include "mk_reset.h"
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#include "mk_calib.h"
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#include "mk_wdt.h"
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#include "libc_rom.h"
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#include "board.h"
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volatile static uint32_t dma_status = 0;
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volatile static uint32_t dma_done = 0;
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static void dma_callback(void *ch, uint32_t err_code)
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{
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uint8_t ch_num = *(uint8_t *)ch;
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LOG_INFO(TRACE_MODULE_APP, "DMA channel %d status %d\r\n", ch_num, err_code);
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dma_status = err_code;
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dma_done = 1;
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}
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static void dma_abort_callback(void *ch, uint32_t err_code)
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{
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uint8_t ch_num = *(uint8_t *)ch;
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LOG_INFO(TRACE_MODULE_APP, "DMA channel %d abort status %d\r\n", ch_num, err_code);
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dma_status = err_code;
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dma_done = 1;
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}
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static struct DMA_CH_CFG_T usr_dma_ch_cfg = {
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.fifo_th = DMA_FIFO_TH_1,
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.src_burst_size = DMA_SRC_BURST_SIZE_1,
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.src_width = DMA_WIDTH_1B,
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.dst_width = DMA_WIDTH_1B,
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.src_addr_ctrl = DMA_ADDR_INC,
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.dst_addr_ctrl = DMA_ADDR_INC,
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.src_req_sel = DMA_REQ_MEM,
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.dst_req_sel = DMA_REQ_MEM,
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};
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static uint8_t __attribute__((aligned(4))) src_buf[10] = {0};
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static uint8_t __attribute__((aligned(4))) dst_buf[10] = {0};
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int main(void)
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{
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board_clock_run();
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board_pins_config();
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board_debug_console_open(TRACE_PORT_UART0);
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// Reset reason
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reset_cause_get();
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reset_cause_clear();
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// Chip calibration
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calib_chip();
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// Disable watchdog timer
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wdt_close(WDT_ID0);
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LOG_INFO(TRACE_MODULE_APP, "DMA example\r\n");
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gpio_open();
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board_configure();
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for (uint16_t i = 0; i < sizeof(src_buf); i++)
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{
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src_buf[i] = i & 0xff;
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}
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dma_open(DMA_CH0, &usr_dma_ch_cfg);
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dma_transfer(DMA_CH0, src_buf, dst_buf, sizeof(src_buf), dma_callback);
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while (dma_done == 0)
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{
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}
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dma_done = 0;
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if (dma_status == DMA_INT_TYPE_ERROR)
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{
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LOG_INFO(TRACE_MODULE_APP, "DMA transfer error\r\n");
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}
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else
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{
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LOG_INFO(TRACE_MODULE_APP, "DMA transfer done\r\n");
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for (int i = 0; i < 10; i++)
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{
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if (src_buf[i] != dst_buf[i])
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{
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LOG_INFO(TRACE_MODULE_APP, "DMA transfer data mismatch\r\n");
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break;
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}
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}
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}
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for (uint16_t i = 0; i < sizeof(src_buf); i++)
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{
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src_buf[i] = 0xff;
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}
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dma_transfer(DMA_CH0, src_buf, dst_buf, sizeof(src_buf), dma_callback);
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dma_abort(DMA_CH0, dma_abort_callback);
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while (dma_done == 0)
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{
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}
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if (dma_status == DMA_INT_TYPE_ABORT)
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{
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LOG_INFO(TRACE_MODULE_APP, "DMA transfer abort\r\n");
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for (int i = 0; i < 10; i++)
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{
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if (src_buf[i] != dst_buf[i])
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{
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LOG_INFO(TRACE_MODULE_APP, "%x bytes were transferred before the dma aborted\r\n", i);
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break;
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}
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}
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}
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else
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{
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LOG_INFO(TRACE_MODULE_APP, "DMA transfer done\r\n");
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}
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dma_close(DMA_CH0);
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LOG_INFO(TRACE_MODULE_APP, "End of DMA example project\r\n");
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while (1)
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{
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}
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}
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