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参数资料
| 型号： | HI7188EVAL |
| 厂商： | Intersil |
| 文件页数： | 8/22页 |
| 文件大小： | 0K |
| 描述： | EVALUATION PLATFORM HI7188 |
| 产品培训模块： | Solutions for Industrial Control Applications |
| 标准包装： | 1 |
| ADC 的数量： | 1 |
| 位数： | 16 |
| 采样率（每秒）： | 240 |
| 数据接口： | 串行 |
| 输入范围： | ±2.5 V |
| 在以下条件下的电源（标准）： | 28mW @ 240SPS |
| 工作温度： | -40°C ~ 85°C |
| 已用 IC / 零件： | HI7188 |
| 已供物品： | 板 |
Application Note 9518
MSB to LSB format, for each active channel being con-
verted. Touch any key to return execution to the Read Menu.
Enter Selection:
1. No Data RAM Write Possible: Entering 1 or 2 from the Write
9
Hex Input: Entering 9 from the Read Menu invokes a
Menu is a no operation. The Data RAM is not writable.
series of prompts allowing read access to any HI7188
Register. The user must know the instruction byte infor-
mation for this command to be useful. The user will ?rst
be asked to enter, in hex, the IR byte of the communica-
tion cycle. The IR byte entered will be analyzed. If a write
has been requested (from the Read Menu), an error
message is displayed and execution returns to the Read
Menu. If the IR byte entered is a valid read operation, the
data is displayed on the screen, in hex. Touch any key to
return execution to the Read Menu.
Towards the bottom of the Read Menu are picks that allow
the user to quickly access the Main Menu, Con?guration
Menu, and Write Menu.
m Main Menu: Entering m from the Read Menu returns
software execution to the Main Menu.
3
4
Control Register: Entering 3 from the Write Menu invokes
a write communication cycle with the Control Register.
The user is prompted for the number of bytes to write and
the starting byte before being prompted for the data. The
software requires the data be entered in hex, most signifi-
cant to least significant format, first byte to last byte order.
Recall that if the most significant byte is not chosen as the
starting byte, the data written will not be in MSB to LSB
format as input at the keyboard. Please see the Software
Clarifications Section for further details. If the user does
not fully understand the HI7188 Serial Interface functional-
ity, it is advisable to use the Configuration Menu to write
the Control Register. When the I/O cycle has been com-
pleted, execution returns to the Write Menu.
Channel Con?guration Register #2: Entering 4 from the
c
Con?guration Menu: Entering c from the Read Menu
returns software execution to the Con?guration Menu.
Write Menu invokes a write communication cycle with the
Channel Con?guration Register #2. The user is
prompted for the number of bytes to write and the start-
w Write Menu: Entering w from the Read Menu returns
software execution to the Write Menu.
ing byte before being prompted for the data. The soft-
ware requires the data be entered in hex, most
i
s
I/O Reset: Entering i from the Read Menu sends an
active low signal to the HI7188 RSTI/O pin, clearing the
Serial Interface Controller effectively aborting an ongoing
communication cycle. The Read Menu remains dis-
played on the screen.
Reset: Entering s from the Read Menu sends an active
low signal to the HI7188 RST pin, which initializes the
HI7188. The Read Menu remains displayed on the
screen.
signi?cant to least signi?cant format, ?rst byte to last byte
order. Recall that if the most signi?cant byte is not cho-
sen as the starting byte, the data written will not be in
MSB to LSB format as input at the keyboard. Please see
the Software Clari?cations Section for further details. If
the user does not fully understand the HI7188 Serial
Interface functionality, it is advisable to use the Chip Con-
?guration Menu to write the Channel Con?guration Reg-
ister #2. When the I/O cycle has been completed,
execution returns to the Write Menu.
Write Menu:
The Write Menu allows the user to quickly write data into all
accessible memory elements of the HI7188, without knowl-
edge of the instruction byte required.
Write Menu:
1 Data RAM (No OP)
2 Data RAM (No OP)
3 Control Register
4 CCR #2
5 CCR #1
6 Offset RAM
7 Positive Gain RAM
8 Negative Gain RAM
9 Hex Input
Menu Select:
m Main Menu
c Con?guration Menu
r Read Menu
Reset Select:
5
6
Channel Con?guration Register #1: Entering 5 from the
Write Menu invokes a write communication cycle with the
Channel Con?guration Register #1. The user is
prompted for the number of bytes to write and the start-
ing byte before being prompted for the data. The soft-
ware requires the data be entered in hex, most
signi?cant to least signi?cant format, ?rst byte to last byte
order. Recall that if the most signi?cant byte is not cho-
sen as the starting byte, the data written will not be in
MSB to LSB format as input at the keyboard. Please see
the Software Clari?cations Section for further details. If
the user does not fully understand the HI7188 Serial
Interface functionality, it is advisable to use the Chip Con-
?guration Menu to write the Channel Con?guration Reg-
ister #1. When the I/O cycle has been completed,
execution returns to the Write Menu.
Offset Calibration RAM: Entering 6 from the Write Menu
invokes a write communication cycle with the Offset Cali-
bration RAM. The user will be prompted, per channel, to
enter the data to write. The number of channels prompted
for is determined by the CR<7:5> bits. The software
requires the data be entered in hex, most significant to
i
s
I/O Reset
System Reset
8
least significant format. An Offset Calibration RAM word is
3 bytes, all bytes must be entered at the prompt.
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