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參數(shù)資料
| 型號： | DRM040 |
| 英文描述： | Single Phase Digital Power Meter Reference Design |
| 中文描述： | 單相電能表的數(shù)字參考設(shè)計 |
| 文件頁數(shù)： | 28/80頁 |
| 文件大?。?/td> | 1025K |
| 代理商： | DRM040 |
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Software
Designer Reference Manual
DRM040 — Rev 0
28
Software
MOTOROLA
3.1.2 main loop
The main routine is implemented in ‘C’ code. The function is called from
the Start08 routine and immediately calls the assembly initialization
code, Asm_Init(), and then the C initialization code, C_Init(). After
execution of the initialization code the routine checks PTA0 and enters
calibration mode if set to logic 1. In calibration mode Timer1 is set to
output a 100KHz reference signal to enable the clock to be tuned with
the trim cap mounted on the board. The code remains in calibration
mode until PTA0 is reset to locic0. The code then enters an infinite loop
and waits for a new sample to be completed (every 625us), which is
indicated by the NEW_SAMPLE_FLAG set in the ApplicationFlags
buffer. If all 256 samples are completed (8 cycles of mains input) the
code scales the new instant power calculation before saving the value in
InstantPower buffer. This power value is also added to the active tariff to
calculate the accumulated power before the code checks if time or date
is to be displayed and updates the Display_Buf with the latest real time
clock information. Finally, the display result function is called to display
the new data on the LCD and loops back and waits for the next sample.
If the 256 samples were not complete the code checks the
SwitchDecode function to see if any switches were pushed since last
poll. The code then loops back to the start and waits for the next new
sample. Figure 4.2 shows main loop flow diagram
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
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| DRM10 | 功能描述:DIP 開關(guān)/ SIP 開關(guān) BCD 10 POS RoHS:否 制造商:Omron Electronics 位置數(shù)量:10 開關(guān)類型:DIP 執(zhí)行器:Rotary 端子節(jié)距:2.54 mm 觸點形式: 端接類型:Solder Pin 電流額定值:100 mA 電壓額定值 DC: 工作溫度范圍: 安裝:Through Hole |
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