參數(shù)資料
型號(hào)： TLV1570EVM
廠商： Texas Instruments, Inc.
英文描述： TLV1570 Evaluation Module(TLV1570評(píng)估板)
中文描述： TLV1570評(píng)估模塊（TLV1570評(píng)估板）
文件頁數(shù)： 20/34頁
文件大?。?/td> 226K
代理商： TLV1570EVM
Example Hookup With TMS320C203 DSP
4-2
Hookup With TMS320C203 DSP
4.1
Example Hookup With TMS320C203 DSP
This example shows how to use the TLV1570 EVM with a TMS320C203 DSP.
As both converters on the board (TLV1570 and TLV5616) are compatible
(without glue logic) with all TI DSPs with serial interface, the hardware
connections of the serial interface are the same as the other DSPs.
Figure 4–1.Example Hookup With TMS320C203 DSP
CLKIN
FS
DIN
DOUT
/CSAD
/CSDA
CLKX
CLKR
FSX
FSR
DX
DR
IO0
IO1
TLV1570 EVM
TMS320C203
No external circuitry is needed to check out the operation of the TLV1570
(except a power supply). The following shows how to program the TLV1570.
In this example, the TLV1570 converts data continuously and stores the result
in a 256-word (16-bit) block within the memory of the TMS320C203 system.
The time base is generated by the timer interrupt. In the interrupt handler
routine, the DSP reads the last conversion result and stores it in the next
address within the memory block. When 256 words are stored, the DSP starts
at the beginning of the block again.
The program consists of three parts:
Initialization (from address
start
to address
loop
)
In this block, IO0, which provides the chip-select signal for the TLV1570, is
configured as an output and driven low. The TMS320C203 timer is set up
and the registers, which are used to access the data buffer, are initialized.
Idle loop (address
loop
)
The whole program is interrupt driven. When not in the interrupt service
routine, the DSP is idle.
TINT_handler
In this interrupt service routine, the DSP reads the conversion result from
the ADC using the serial port and stores it in memory.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLV1570IDW 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10bit 1.25MSPS Ser RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
TLV1570IDWG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 1.25 MSPS 8-Ch DSP RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
TLV1570IDWR 制造商:Texas Instruments 功能描述:
TLV1570IPW 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10bit 1.25MSPS Ser RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
TLV1570IPWG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 1.25 MSPS 8-Ch DSP RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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