1. GPIO: The simplest but the most important MCU Source code.
2. LCD_2X12: 4 bit data bus LCD driver Source code.
3. Speaking: The MSP430 Source code to play wave sound file.
4. Flash Memory: MSP430 flash memory writing source code.
5. P1 Interrupt: General external input interrupt source code.
6. Timer A: Every project need timer source code.
7. UART: RS-232 communication source code.
8. I2C: Use GPIO to emulate I2C master source code.
9. PWM: PWN source code for power control.
10. Playing Music: Theory and source code for playing “amazing grace”.
11. LCD240X160: Graphic LCD driver Source code.
12. Sine wave: MSP430 Sine Wave Generator up to 19K frequency.
13. IR_Decoder: General TV IR Remote Decoder Source code.
14. Merry Christmas C Source Code to play Merry Christmas and Amazing grace.
15. DS1307 C Source Code to read Real Time Clock
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congratulations!
nice work… your piano firmware, and wav files… excellent!!
Thanks for the encouragement!
You are the very first one who leaves me the most valuable message.
There will be more code to be upload.
I am going to improve the piano firmware. Use sine wave instead of square wave. Analog output instead of digital.
Regards,
Frank
I am going to implement a Telephone keypad by MSP430 MCU.
For each key on a dial pad, there are two sine waes with fixed frequency.
DTMF Keypad Frequencies (with sound clips)
1 2 3 697 Hz
4 5 6 770 Hz
7 8 9 852 Hz
* 0 # 941 Hz
1209 Hz 1336 Hz 1477 Hz
For example, key 1 is consisted by a sine wave with 697Hz frequency and the one with 1209Hz frequency.
First we need to create sine wave
This is BV6 program for plotting a sine wave curve: f1
Private Sub Command1_Click()
For cnt = 0 To 3 * 628
Y = 200 * Sin(cnt / 100)
Form1.Picture1.PSet (cnt, 700 – Y)
Next
End Sub
If we want to double the frequency: f2
Private Sub Command2_Click()
For cnt = 0 To 3 * 628
Y = 200 * Sin(2 * cnt / 100)
Form1.Picture1.PSet (cnt, 1100 – Y)
Next
End Sub
If we want to get output of these two signal: f3
Private Sub Command3_Click()
For cnt = 0 To 3 * 628
Y = 200 * Sin(cnt / 100)
Y = Y + 200 * Sin(2 * cnt / 100)
Form1.Picture1.PSet (cnt, 1700 – Y)
Next
End Sub
What I need to do is to creating f1, f2 and f3.
For more details, go to here to check it out.
Hi, I am interested in your SINE wave generator source, but it has a dad link 404 error, pls check.
Thanks for reporting this link. It was dead, but now is alive.
Welcome back to http://franktu.com/ to download your interested MSP430 source code. There is alway some new code.
Today I implemented “ADS1113, ADS1114, ADS1115- Ultra-Small, Low-Power, 16-Bit Analog-to-Digital Converter with Internal Reference – Texas Instruments” source code.
Please check it out from http://franktu.com/
What a great resource!
Thanks!
Great work keep it coming
It’s not that I want to duplicate your internet site, but I really like the design. Could you tell me which theme are you using? Or was it tailor made?
It is named as “WordPress Classic 1.5 by Dave Shea”.
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My home page http://franktu.com/ is built by Frontpage. This blog is an opensource application. I only put some google Adsense code to my pages. You can put the code into any page. For this blog, you can put the code to /blog/index.php. You can do it. If need help, let me know.
Any page on my website is open source. You can right click–>view page source–>save to get the source code of the page.
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Really helpful post on firmware coding. Thanks for the tips.
In what context is vDelay() defined?
- and why is it followed with _nop()?
* What compiler/build-environment is your code made by?
vDelay() is at the end of http://franktu.com/universal_i2c_master.htm
I use CrossWorks.
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