diff --git a/drivers/lhal/src/flash/bflb_sflash.c b/drivers/lhal/src/flash/bflb_sflash.c
index 30f3af7c8..973c44dc7 100644
--- a/drivers/lhal/src/flash/bflb_sflash.c
+++ b/drivers/lhal/src/flash/bflb_sflash.c
@@ -1133,7 +1133,7 @@ void ATTR_TCM_SECTION bflb_sflash_set_burst_wrap(spi_flash_cfg_type *flash_cfg)
     dummy_clks = flash_cfg->burst_wrap_cmd_dmy_clk;
     cmd = flash_cfg->burst_wrap_cmd;
     wrap_data = flash_cfg->burst_wrap_data;
-    arch_memcpy4((uint32_t *)flash_ctrl_buf, &wrap_data, 4);
+    arch_memcpy4((uint32_t *)flash_ctrl_buf, &wrap_data, 1);
     flash_cmd.cmd_buf[0] = (cmd << 24);
     flash_cmd.rw_flag = SF_CTRL_WRITE;
     flash_cmd.dummy_clks = dummy_clks;
@@ -1169,7 +1169,7 @@ void ATTR_TCM_SECTION bflb_sflash_disable_burst_wrap(spi_flash_cfg_type *flash_c
     dummy_clks = flash_cfg->de_burst_wrap_cmd_dmy_clk;
     cmd = flash_cfg->de_burst_wrap_cmd;
     wrap_data = flash_cfg->de_burst_wrap_data;
-    arch_memcpy4((uint32_t *)flash_ctrl_buf, &wrap_data, 4);
+    arch_memcpy4((uint32_t *)flash_ctrl_buf, &wrap_data, 1);
     flash_cmd.cmd_buf[0] = (cmd << 24);
     flash_cmd.rw_flag = SF_CTRL_WRITE;
     flash_cmd.dummy_clks = dummy_clks;