Cancelled

Create library for vs1053 for ccs and provide a example, using PIC18F4520

Coder must write a library that will use the vs1053b together with a sdcard. Must be used to PIC18F4520.

-There are already available libraries in ccs for sdcard and there is also a fix available here (the first two posts):

[url removed, login to view]

-vs1053b:

[url removed, login to view]

Features of the lib:

-It shall have (almost?)all the features of the IC. (if there are some feature too hard to develop, please tell me.)

-Must use the "New Mode" SPI from the IC.

What i really want to do:

-it would be a general use lib, but intended to play specific files inside the sdcard.

-Can be used to easily create a mp3 player.

The example shall contain:

-Must be interrupt driven. I really have no idea of how to develop/drive a interrupt, and make it work at the same time while processing other stuff, like writting on LCD and accepting Button commands.

-Must use a lcd. It is the hd44780, but a 16x1 one. There is also a native library for it in the ccs.

-Must have buttons. (enough for play, pause, stop, skip forward/backward, fast forward)

-Must have a loop feature. I mean, it can be left unused, but for what i need, i need for example to have a beep beep beep playing in the background.(it would be a file that has a single beep, but the system plays it indefinitely until stopped by a function)

-I will contact you if there is any difficulties using the lib/ or requesting how to do another action.(don't worry, i am quite knowledgeable, so the questions won't be stupid, or there will be no question at all.)

PS:

-I know how to develop some features of it, but i have no idea how to make the timing, how to do interrupts, and etc. I fear that if i do a direct bypass from the sdcard to the mp3 without any buffer/timer, it either shall play too fast or too slow.

-Yes, the example may be considered another project based on the lib you will write, and yes, you can add this to the budget.

## Deliverables

1) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No 3rd party components unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the worker's Worker Legal Agreement).

## Platform

Target Devices: Microchip PIC 18F4520

Programming Software: CCS PIC C Compiler ([url removed, login to view])

技能: C 编程, 电子, 工程

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关于此雇主:
( 0个评论 ) São Paulo, Brazil

项目ID: #4878918

2 威客就此工作平均出价 $328

osalahuddin

Hi, I am an Electrical Engineer and an expert in Embedded Systems. I can help you.

$100 USD 在7天内
(3条评论)
1.6
chanTeketa

Please check the PM.

$61 USD 在3天内
(0条评论)
0.0
xtintt

Hi, I am expert in PIC series microcontroller programming. Have hands on experience with USB CDC stack, UART etc. Dhaval

$555 USD 在7天内
(1条评论)
3.1