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BURST_LEN 47->63 (64 beats)

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FallenSigh
2026-06-25 04:08:18 +08:00
parent 4aba830a7d
commit a9958ee4fa
1 changed files with 1 additions and 1 deletions
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sdk/software/examples/asm/dma.c
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@@ -18,7 +18,7 @@ void dma_start_transfer(int ch_id, uint32_t src, uint32_t dst, uint32_t bytes, u
// 置 Burst 属性并触发传输 // 置 Burst 属性并触发传输
// AXI SIZE: 2 (代表 2^2 = 4 Bytes，与 32-bit 数据线匹配) // AXI SIZE: 2 (代表 2^2 = 4 Bytes，与 32-bit 数据线匹配)
// AXI LEN: 15 (代表 16 beats 突发传输，最高效) // AXI LEN: 15 (代表 16 beats 突发传输，最高效)
uint32_t ctrl_val = CTRL_BURST_SIZE(2) | CTRL_BURST_LEN(47); uint32_t ctrl_val = CTRL_BURST_SIZE(2) | CTRL_BURST_LEN(63);
// 写入 CTRL 并拉高 Bit 0 (Start) // 写入 CTRL 并拉高 Bit 0 (Start)
ch->CTRL = ctrl_val | CTRL_START_BIT; ch->CTRL = ctrl_val | CTRL_START_BIT;