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MSP430与TLC549 TL1549模数转换器的连接
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2009-06-10
郝埃连
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Many members of the MSP430 family have integrated A/D converters (ADCs), but in some
applications the required analog conversion function is remote, optional, or perhaps an
afterthought. In these types of applications, using external ADCs such as the low-cost, easy to
use TLC549 and TLV1549 are options. This report demonstrates how to interface an
MSP430F1121 to a TLC549. The TLC549 interfaces serially with the MSP430F1121 using three
I/O pins with no external components. This application report shows how to interface an
MSP430F1121 and TLC549 using bit-by-bit software.
· Only 31 bytes of MSP430 code for the TLC549 driver
· Simple serial interface
· A/D conversion complete in less than 17μs
applications the required analog conversion function is remote, optional, or perhaps an
afterthought. In these types of applications, using external ADCs such as the low-cost, easy to
use TLC549 and TLV1549 are options. This report demonstrates how to interface an
MSP430F1121 to a TLC549. The TLC549 interfaces serially with the MSP430F1121 using three
I/O pins with no external components. This application report shows how to interface an
MSP430F1121 and TLC549 using bit-by-bit software.
· Only 31 bytes of MSP430 code for the TLC549 driver
· Simple serial interface
· A/D conversion complete in less than 17μs
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