ValueError: [MAIXPY]kpu: load_flash error:2006, ERR_NO_MEM: memory not enough

[KuoEuran]

Hi,
I am using the Maxiduino to load my kmodel which is 5.6MB.
I follow https://en.bbs.sipeed.com/t/topic/1811 to make my kmodel be big-edian,
and I use the command
task = kpu.load_flash(0x174000, 1, 1, 60000000)
Howerver, it appears the error.

Can anyone give me some advice to solve this error, tks.