103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
#include "bflb_mtimer.h"
|
|
#include "bflb_dma.h"
|
|
#include "board.h"
|
|
|
|
#define DMA_BUFFER_LENGTH 4100
|
|
|
|
static ATTR_NOCACHE_NOINIT_RAM_SECTION uint8_t src1_buffer[DMA_BUFFER_LENGTH];
|
|
static ATTR_NOCACHE_NOINIT_RAM_SECTION uint8_t src2_buffer[DMA_BUFFER_LENGTH];
|
|
static ATTR_NOCACHE_NOINIT_RAM_SECTION uint8_t src3_buffer[DMA_BUFFER_LENGTH];
|
|
|
|
static ATTR_NOCACHE_NOINIT_RAM_SECTION uint8_t dst1_buffer[DMA_BUFFER_LENGTH];
|
|
static ATTR_NOCACHE_NOINIT_RAM_SECTION uint8_t dst2_buffer[DMA_BUFFER_LENGTH];
|
|
static ATTR_NOCACHE_NOINIT_RAM_SECTION uint8_t dst3_buffer[DMA_BUFFER_LENGTH];
|
|
static uint8_t dma_tc_flag0 = 0;
|
|
|
|
struct bflb_device_s *dma0_ch0;
|
|
|
|
void dma0_ch0_isr(void *arg)
|
|
{
|
|
dma_tc_flag0++;
|
|
printf("tc done\r\n");
|
|
}
|
|
|
|
void sram_init()
|
|
{
|
|
uint32_t i;
|
|
|
|
for (i = 0; i < DMA_BUFFER_LENGTH; i++) {
|
|
src1_buffer[i] = i & 0xff;
|
|
src2_buffer[i] = (i * 0x07) & 0xff;
|
|
src3_buffer[i] = (i * 0x0b) & 0xff;
|
|
}
|
|
|
|
memset(dst1_buffer, 0, DMA_BUFFER_LENGTH);
|
|
memset(dst2_buffer, 0, DMA_BUFFER_LENGTH);
|
|
memset(dst3_buffer, 0, DMA_BUFFER_LENGTH);
|
|
}
|
|
|
|
int main(void)
|
|
{
|
|
uint32_t i;
|
|
|
|
board_init();
|
|
|
|
sram_init();
|
|
|
|
printf("dma memory case:\r\n");
|
|
dma0_ch0 = bflb_device_get_by_name("dma0_ch0");
|
|
|
|
struct bflb_dma_channel_config_s config;
|
|
|
|
config.direction = DMA_MEMORY_TO_MEMORY;
|
|
config.src_req = 0;
|
|
config.dst_req = 0;
|
|
config.src_addr_inc = DMA_ADDR_INCREMENT_ENABLE;
|
|
config.dst_addr_inc = DMA_ADDR_INCREMENT_ENABLE;
|
|
config.src_burst_count = DMA_BURST_INCR1;
|
|
config.dst_burst_count = DMA_BURST_INCR1;
|
|
config.src_width = DMA_DATA_WIDTH_32BIT;
|
|
config.dst_width = DMA_DATA_WIDTH_32BIT;
|
|
bflb_dma_channel_init(dma0_ch0, &config);
|
|
|
|
bflb_dma_channel_irq_attach(dma0_ch0, dma0_ch0_isr, NULL);
|
|
|
|
struct bflb_dma_channel_lli_pool_s lli[20]; /* max trasnfer size 4064 * 20 */
|
|
struct bflb_dma_channel_lli_transfer_s transfers[3];
|
|
|
|
transfers[0].src_addr = (uint32_t)src1_buffer;
|
|
transfers[0].dst_addr = (uint32_t)dst1_buffer;
|
|
transfers[0].nbytes = DMA_BUFFER_LENGTH;
|
|
|
|
transfers[1].src_addr = (uint32_t)src2_buffer;
|
|
transfers[1].dst_addr = (uint32_t)dst2_buffer;
|
|
transfers[1].nbytes = DMA_BUFFER_LENGTH;
|
|
|
|
transfers[2].src_addr = (uint32_t)src3_buffer;
|
|
transfers[2].dst_addr = (uint32_t)dst3_buffer;
|
|
transfers[2].nbytes = DMA_BUFFER_LENGTH;
|
|
|
|
bflb_dma_channel_lli_reload(dma0_ch0, lli, 20, transfers, 3);
|
|
bflb_dma_channel_start(dma0_ch0);
|
|
while (dma_tc_flag0 != 3) {
|
|
bflb_mtimer_delay_ms(1);
|
|
}
|
|
|
|
/* Check data */
|
|
for (i = 0; i < DMA_BUFFER_LENGTH; i++) {
|
|
if (src1_buffer[i] != dst1_buffer[i]) {
|
|
printf("Error! index: %ld, src1: 0x%02x, dst1: 0x%02x\r\n", i, src1_buffer[i], dst1_buffer[i]);
|
|
}
|
|
if (src2_buffer[i] != dst2_buffer[i]) {
|
|
printf("Error! index: %ld, src2: 0x%02x, dst2: 0x%02x\r\n", i, src2_buffer[i], dst2_buffer[i]);
|
|
}
|
|
if (src3_buffer[i] != dst3_buffer[i]) {
|
|
printf("Error! index: %ld, src3: 0x%02x, dst3: 0x%02x\r\n", i, src3_buffer[i], dst3_buffer[i]);
|
|
}
|
|
}
|
|
|
|
printf("end\r\n");
|
|
while (1) {
|
|
}
|
|
}
|