- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄32307 > LM8300IMT9/NOPB (NATIONAL SEMICONDUCTOR CORP) SPECIALTY CONSUMER CIRCUIT, PDSO48 PDF資料下載
參數(shù)資料
| 型號： | LM8300IMT9/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO48 |
| 封裝： | TSSOP-48 |
| 文件頁數(shù)： | 9/20頁 |
| 文件大?。?/td> | 327K |
| 代理商： | LM8300IMT9/NOPB |
14.0 Calibration (Continued)
14.2 CALIBRATION PROCEDURES WITH
COORDINATES CHECKING ENABLED
To do TS calibration with coordinates checking enabled, first
ensure the Calibration Coordinates Checking is enabled on
the device. This can be accomplished by sending a com-
mand byte of $B1 (Read Parameters command) and check-
ing the 5th bit of the 12th reply byte is set. Alternatively, if the
device is set to Calibration Coordinates Checking enabled
as default, this step can be skipped.
The TS driver sends the command byte to do calibration
($BD). The TS driver should wait for the reply bytes and
ensure it is the same command bytes it sent. The device
waits for a touch to be detected on the panel. Once a touch
is detected, the device checks it against the predetermined
calibration values as noted on Table 3. Two Points Calibra-
Points Calibration. If the detected touch is within the pre-
defined value (±127 of the raw A/D value), the device will
send a command of $C4 to the TS driver and store the
calibration point in the internal flash. The TS driver can now
send a command byte to do the next calibration point. If the
detected touch is not within the predefined value, the device
will send a reply byte of $C8 to the TS driver. Upon receiving
this reply byte, the TS driver can resend the calibration
command for the same calibration point, go the next calibra-
tion point, or abort the calibration process.
Once all the calibration points are done, the device does a
self-test. If the self-test was not successful, the device will
20037210
FIGURE 8. Calibration Procedures with Coordinates Checking Enabled
LM8300/LM8500
www.national.com
17
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM8300HLQ9/NOPB | SPECIALTY CONSUMER CIRCUIT, QCC44 |
| LMF501T-2 | AM, AUDIO SINGLE CHIP RECEIVER, PBCY3 |
| LPA5S | 1-OUTPUT 50 W DC-DC REG PWR SUPPLY MODULE |
| LPA9D | 2-OUTPUT 120 W DC-DC REG PWR SUPPLY MODULE |
| LPA5D | 2-OUTPUT 100 W DC-DC REG PWR SUPPLY MODULE |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM8300IVA9 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Four Wire Resistive Touchscreen Controller with Brownout |
| LM8300-REF-01 | 功能描述:BOARD EVALUATION LM8300 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 標(biāo)準(zhǔn)包裝:1 系列:PCI Express® (PCIe) 主要目的:接口，收發(fā)器，PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要屬性:- 次要屬性:- 已供物品:板 |
| LM8305 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:STN LCD Display Bias Voltage source |
| LM8305M | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:STN LCD Display Bias Voltage source |
| LM8305M-1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。