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Recent content by Aaron2

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    [SOLVED] Help Identify a plastic flanged/wall mount enclosure.

    I found it! Its is a Bud CU-1941-MB...
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    [SOLVED] Help Identify a plastic flanged/wall mount enclosure.

    Help Identify a small plastic flanged/wall mount enclosure. I'm struggling to identify the manufacturer of small plastic flanged(wall mount) enclosure. The dimensions: ~82mm x 54mm x 30mm (3.2" x 2.1" x 1.2"). Features: Hidden screws on flanged lid, includes screw-hole plugs, smooth sides...
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    [Moved]: cleaning pcb boards with petrol

    My company uses 90% Isopropyl alcohol and acrylic lacquer thinner.
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    Understanding a Delay, for(j=0;j<1275;j++);, Crystal freq & 1275, 8051

    Please forgive me. But my line of questions seems like a logical progression of my original question discussion as it affects the cycle divisor ratio referenced in the first reply. I will create a new post.
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    Understanding a Delay, for(j=0;j<1275;j++);, Crystal freq & 1275, 8051

    So the cycle divisor ratio I have been using above formula is 12 (with STC11F16XE). The spec sheet of the STC11F16XE states: The STC89C54RD+ spec states:
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    Understanding a Delay, for(j=0;j<1275;j++);, Crystal freq & 1275, 8051

    So with these facts in mind, I must ask why two different 8051 compatible MCUs (STC11F16XE, STC89C54RD+) would have a wildly different reaction to these basic Delay functions. ie. Using a STC11F16XE a simple LED blink using delay like: void delay(unsigned int itime) { unsigned int i,j; for...
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    Understanding a Delay, for(j=0;j<1275;j++);, Crystal freq & 1275, 8051

    Yes, I transposed the crystal frequency, it is the common 11.0592 mhz. So the Engineer's Garage link I referenced failed to display the 1.079us (one machine cycle time) in his formula. So why is the 1275 value so common when a lower value would equate to a more accurate 1.0ms?
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    Understanding a Delay, for(j=0;j<1275;j++);, Crystal freq & 1275, 8051

    Understanding a Delay, for(j=0;j&amp;lt;1275;j++);, Crystal freq &amp;amp; 1275, 8051 I see countless uses of this basic Delay, usually for milliseconds. void delay(int ms) //Produces a delay in msec. { int i,j; for(i=0;i<ms;i++) for(j=0;j<1275;j++); } I have not been able to...
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    I2C program file problem with 8051

    In this code I'm trying to determine what the: sbit en1=P2^7; is referring to. An LED state, indicator? Used in place of an int value maybe? #include<intrins.h> #include<reg51.h> sbit rs=P0^1; sbit rw=P0^2; sbit en=P0^3; sbit en1=P2^7; sbit sda=P1^0; sbit scl=P1^1; void i2c_start(); void...
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    countdown_timer.c(119): error C100: unprintable character 0x97 skipped

    The code I'm working on was in a project located here: https://electronicswork.wordpress.com/2012/10/11/digitalclock/ I'm using Keil uVision4, I thought it should be reliable.
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    countdown_timer.c(119): error C100: unprintable character 0x97 skipped

    I have this same problem with unprintable character 0x96 on build, in the below code. So I updated the code from h-; to h--; Clock_Cal1.c(183): error C100: unprintable character 0x96 skipped Clock_Cal1.c(191): error C100: unprintable character 0x96 skipped Clock_Cal1.c(217): error C100...
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    [SOLVED] 1602 LCD Row & Col Question, 8051 LCD Demo test in C.

    I'm creating a fresh one from scratch.
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    [SOLVED] 1602 LCD Row & Col Question, 8051 LCD Demo test in C.

    My initial post displays the Demo Code I referred to (that you commented on previously). My question is also given. I'm Sure the example is not working properly. I'm trying to learn C, and basic demo code that was included with my 8051 development board is helpful in learning by example. A...
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    [SOLVED] 1602 LCD Row & Col Question, 8051 LCD Demo test in C.

    Re: 1602 LCD Row &amp; Col Question, 8051 LCD Demo test in C. I thought I understood the DisplayListChar function. I found this format (Col-X, Row-Y) in the original demo code, matching function, not working. DisplayListChar(4, 0, "Line 1"); // original code DisplayListChar(4, 1 "Line 2")...

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