144 lines
4.8 KiB
C
144 lines
4.8 KiB
C
/**
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**************************************************************************
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* @file main.c
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* @brief main program
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**************************************************************************
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* Copyright notice & Disclaimer
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*
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* The software Board Support Package (BSP) that is made available to
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* download from Artery official website is the copyrighted work of Artery.
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* Artery authorizes customers to use, copy, and distribute the BSP
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* software and its related documentation for the purpose of design and
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* development in conjunction with Artery microcontrollers. Use of the
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* software is governed by this copyright notice and the following disclaimer.
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*
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* THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
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* GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
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* TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
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* STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
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* INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
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*
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**************************************************************************
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*/
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#include "at32f435_437_board.h"
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#include "at32f435_437_clock.h"
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/** @addtogroup AT32F437_periph_examples
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* @{
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*/
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/** @addtogroup 437_DMA_flash_to_sram DMA_flash_to_sram
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* @{
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*/
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#define BUFFER_SIZE 32
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const uint32_t src_const_buffer[BUFFER_SIZE]= {0x01020304, 0x05060708, 0x090A0B0C, 0x0D0E0F10,
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0x11121314, 0x15161718, 0x191A1B1C, 0x1D1E1F20,
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0x21222324, 0x25262728, 0x292A2B2C, 0x2D2E2F30,
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0x31323334, 0x35363738, 0x393A3B3C, 0x3D3E3F40,
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0x41424344, 0x45464748, 0x494A4B4C, 0x4D4E4F50,
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0x51525354, 0x55565758, 0x595A5B5C, 0x5D5E5F60,
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0x61626364, 0x65666768, 0x696A6B6C, 0x6D6E6F70,
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0x71727374, 0x75767778, 0x797A7B7C, 0x7D7E7F80};
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uint32_t dst_buffer[BUFFER_SIZE];
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gpio_init_type gpio_init_struct = {0};
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dma_init_type dma_init_struct;
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__IO uint32_t data_counter_end = 0x01; /* this variable should not be initialized to 0 */
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error_status transfer_status = ERROR;
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/**
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* @brief compares two buffers.
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* @param pbuffer, pbuffer1: buffers to be compared.
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* @param buffer_length: buffer's length
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* @retval SUCCESS: pbuffer identical to pbuffer1
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* ERROR: pbuffer differs from pbuffer1
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*/
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error_status buffer_compare(const uint32_t* pbuffer, uint32_t* pbuffer1, uint16_t buffer_length)
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{
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while(buffer_length--)
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{
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if(*pbuffer != *pbuffer1)
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{
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return ERROR;
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}
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pbuffer++;
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pbuffer1++;
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}
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return SUCCESS;
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}
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/**
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* @brief main function.
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* @param none
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* @retval none
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*/
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int main(void)
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{
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/* initial system clock */
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system_clock_config();
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/* at board initial */
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at32_board_init();
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/* enable dma1 clock */
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crm_periph_clock_enable(CRM_DMA1_PERIPH_CLOCK, TRUE);
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/* dma1 channel1 configuration */
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dma_reset(DMA1_CHANNEL1);
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dma_init_struct.buffer_size = BUFFER_SIZE;
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dma_init_struct.direction = DMA_DIR_MEMORY_TO_MEMORY;
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dma_init_struct.memory_base_addr = (uint32_t)dst_buffer;
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dma_init_struct.memory_data_width = DMA_MEMORY_DATA_WIDTH_WORD;
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dma_init_struct.memory_inc_enable = TRUE;
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dma_init_struct.peripheral_base_addr = (uint32_t)src_const_buffer;
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dma_init_struct.peripheral_data_width = DMA_PERIPHERAL_DATA_WIDTH_WORD;
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dma_init_struct.peripheral_inc_enable = TRUE;
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dma_init_struct.priority = DMA_PRIORITY_MEDIUM;
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dma_init_struct.loop_mode_enable = FALSE;
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dma_init(DMA1_CHANNEL1, &dma_init_struct);
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/* enable transfer full data interrupt */
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dma_interrupt_enable(DMA1_CHANNEL1, DMA_FDT_INT, TRUE);
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/* dma1 channel1 interrupt nvic init */
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nvic_priority_group_config(NVIC_PRIORITY_GROUP_4);
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nvic_irq_enable(DMA1_Channel1_IRQn, 1, 0);
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dma_channel_enable(DMA1_CHANNEL1, TRUE);
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/* wait the end of transmission */
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while(data_counter_end != 0)
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{
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}
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/* check if the transmitted and received data are equal */
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transfer_status = buffer_compare(src_const_buffer, dst_buffer, BUFFER_SIZE);
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/* transfer_status = success, if the transmitted and received data are the same
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transfer_status = error, if the transmitted and received data are different */
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if(transfer_status == SUCCESS)
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{
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/* turn led2/led3/led4 on */
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at32_led_on(LED2);
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at32_led_on(LED3);
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at32_led_on(LED4);
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}
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while(1)
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{
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}
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}
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/**
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* @}
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*/
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/**
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* @}
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*/
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