Dear TI engineer,
I have been using LAUNCHXL_F28379D to communicate with DAC71408 and have been having communication problems. May I ask whether the two SPI signals are at the same level? Do I need to add a level switching chip to the circuit?
Dear TI engineer,
I have been using LAUNCHXL_F28379D to communicate with DAC71408 and have been having communication problems. May I ask whether the two SPI signals are at the same level? Do I need to add a level switching chip to the circuit?
您好，
DAC71408的SPI电平标准是VIO电压，您使用的VIO电压是多少？
您可以看下 LAUNCHXL_F28379D的SPI电平是多少？或者实际测量下其输出的高电平电压看是多少？
LAUNCHXL_F28379D的SPI电平需与DAC71408的SPI电平相兼容，否则的话不能正常通信。
