No output voltage from TI DAC chip, with stm32F7
Thank you for all your reply，I have sovled this question.
The communication is right，the problem is that i didnt initialize all register，when i do this，the problem disappears.But I just initialize all registers for default value except one, because that one does not has a defalut value,it writes 0x---.So the reason maybe from this register.
BR.