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HI:
Requirements:
The 8-channel collection rate is 1ms
Design Scheme:
MCU using stm32G070
Frequency 64 MHZ
Difficult points:
1、Every conversion of MCU needs to pull down CS, MCU is too inefficient
2、SPI+DMA, 5US is going to be an interrupt. It doesn't make sense
For help:
Is there any other way to deal with it
您好,
是的,每次需要拉低CS以启动转换;
2、SPI+DMA, 5US is going to be an interrupt. It doesn't make sense
8-channel collection rate is 1ms,每个sample的时间是125us,也就是8KSPS的采样速率。
您是打算用DMA的方式来读取转换数据吗?5us这里是什么意思?