Location:
Search - 74573
Search list
Description: DA 输出地址0x20400000
由于DAC0832要求输出锁存保持1uS左右
但CPU在读写（对应nGCS4）写信号最大只能到100ns左右
所以外面加了一个地址锁存74573，573锁存下降沿有效（现在是上升沿有效，也可用）
现在电阻不变的情况下，输出0x00，DA输出0V，输出0xff，DA输出1.7V左右
Platform: |
Size: 359096 |
Author: aaaa |
Hits:
Description: DA 输出地址0x20400000
由于DAC0832要求输出锁存保持1uS左右
但CPU在读写（对应nGCS4）写信号最大只能到100ns左右
所以外面加了一个地址锁存74573，573锁存下降沿有效（现在是上升沿有效，也可用）
现在电阻不变的情况下，输出0x00，DA输出0V，输出0xff，DA输出1.7V左右-DA output address 0x20400000 requirements as a result of DAC0832 output latch to keep the CPU in 1uS about reading and writing (corresponding nGCS4) can only write to the 100ns maximum signal around the outside so the addition of an address latch latched falling edge effective 74573,573 (now is the rising edge of effective, can also be used) is now resistance remain unchanged, the output 0x00, DA output 0V, output 0xff, DA output around 1.7V
Platform: |
Size: 358400 |
Author: aaaa |
Hits:
Description: M74HC573扩展MCS-51I/O端口代码。基于STC89C58RD+实现.-M74HC573 extended MCS-51I/O port code. Based STC89C58RD+ implementation.
Platform: |
Size: 18432 |
Author: DaglesHoll |
Hits:
Description: 74573的51单片机C程序，简单的调试小程序-74 573 51 microcontroller C programs, simple little program debugging
Platform: |
Size: 1024 |
Author: 刘小磊 |
Hits: