參數(shù)資料
型號(hào)： TMS320F28335_1
廠商： Texas Instruments, Inc.
英文描述： Variable Capacitance Diode for TV Tuner VHF Tuning; Ratings VR (V): 32; Characteristics n: 12.0 min; Characteristics rs (ohm) max: 0.85; Characteristics C (pF) max: C2 = 32.2 to 37.5 C25 = 2.57 to 3.0; Characteristics CVR/CVR: 2/25; Cl: 2.777; Package: UFP
中文描述： 數(shù)字信號(hào)控制器（DSC）
文件頁數(shù)： 75/166頁
文件大小： 1889K
代理商： TMS320F28335_1
www.ti.com
A
4.7.3
ADC Calibration
TMS320F28335, TMS320F28334, TMS320F28332
Digital Signal Controllers (DSCs)
SPRS439B–JUNE 2007–REVISED OCTOBER 2007
Table 4-5. ADC Registers (continued)
NAME
ADDRESS
(1)
0x710E
0x710F
0x7110
0x7111
0x7112
0x7113
0x7114
0x7115
0x7116
0x7117
0x7118
0x7119
0x711A
0x711B
0x711C
0x711D
0x711E
0x711F
ADDRESS
(2)
0x0B06
0x0B07
0x0B08
0x0B09
0x0B0A
0x0B0B
0x0B0C
0x0B0D
0x0B0E
0x0B0F
SIZE (x16)
1
1
1
1
1
1
1
1
1
1
1
1
DESCRIPTION
ADCRESULT6
ADCRESULT7
ADCRESULT8
ADCRESULT9
ADCRESULT10
ADCRESULT11
ADCRESULT12
ADCRESULT13
ADCRESULT14
ADCRESULT15
ADCTRL3
ADCST
ADC Conversion Result Buffer Register 6
ADC Conversion Result Buffer Register 7
ADC Conversion Result Buffer Register 8
ADC Conversion Result Buffer Register 9
ADC Conversion Result Buffer Register 10
ADC Conversion Result Buffer Register 11
ADC Conversion Result Buffer Register 12
ADC Conversion Result Buffer Register 13
ADC Conversion Result Buffer Register 14
ADC Conversion Result Buffer Register 15
ADC Control Register 3
ADC Status Register
Reserved
2
ADCREFSEL
ADCOFFTRIM
1
1
ADC Reference Select Register
ADC Offset Trim Register
Reserved
2
The ADC_cal() routine is programmed into TI reserved OTP memory by the factory. The boot ROM
automatically calls the ADC_cal() routine to initialize the ADCREFSEL and ADCOFFTRIM registers with
device specific calibration data. During normal operation, this process occurs automatically and no action
is required by the user.
If the boot ROM is bypassed by Code Composer Studio during the development process, then
ADCREFSEL and ADCOFFTRIM must be initialized by the application. For working examples, see the
ADC initialization in the
C2833x C/C++ Header Files and Peripheral Examples
(
SPRC530
). Methods for
calling the ADC_cal() routine from an application are described in
TMS3202833x Analog-to-Digital
Converter (ADC) Module Reference Guide
(
SPRU812
).
NOTE
FAILURE TO INITIALIZE THESE REGISTERS WILL CAUSE THE ADC TO FUNCTION
OUT OF SPECIFICATION.
Because TI reserved OTP memory is secure, the ADC_Cal() routine must be called from
secure memory or called from non-secure memory after the Code Security Module is
unlocked. If the system is reset or the ADC module is reset using Bit 14 (RESET) from the
ADC Control Register 1, the routine must be repeated.
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