Good day all, I'm having an odd problem. I am running quite a massive piece of code on a dsPIC33FJ256MC710. I cannot stress enough that this code is really large consisting of many functions and variables. In one of the functions, when I use a local variable with a certain initial value, the functio...

Good day all, As the title suggests, the problem has been solved. But I would like to know the reasons behind it. What happened was that I performed an FFT (a butchered form of the NR code - I know some can't abide by that code :oops: ) on some data. It was a very large section of data, 2^16 samples...

Please ignore me...found the problem.

Good day, First off, I've read this topic: https://www.mikroe.comwww.mikroe.com/forum/viewtopic.php?f=101&t=47713 but I'm still having trouble. I'm continually getting a redefintion error when compiling. Basically I have a bunch of sbit declarations regardind LEDs and Pushbuttons. I used an old vers...

Many thanks for the replies. I did indeed set the wrong channel as well as a few other minor mistakes. Silly silly silly....

Good day I'm a bit stuck with this device and SPI in general. I've never used SPI before, though I've read as much literature as I can find. I'm paring the MCP3901 (ADC) with a dsPIC33FJ256MC710 by using the 2nd SPI module on the chip. In addition, I'm using channel 0 on the MCP3901. I'm trying to d...

Hi there I'm still very new to using PICs and programming them. So we have a circuit board in our possession with a dsPIC33f256FJ710 (a 16 bit pic) and in addition to a few other peripherals we have some SRAM on board. 512Kx8bit. And it uses 19 address lines. 16 of those lines are on PORTD and the r...

Hi! Opinions? Will I be able to program the chip with this device? Yes. Just pick the dsPIC33FJ256FJ710 instead of dsPIC33FJ256FJ710A in the mikroProg Suite programmer. We have plans to add dsPIC33FJ256FJ710A in the MCU list in the near future (as soon as we receive the sample from Microchip). Best...

Good day I have in my posssesion a Microchip dsPIC33FJ256FJ710A chip. Will the programmer be able to work with it? I notice in the "Supported Microcontrollers" section of this programmer that it only supprots dsPIC33FJ256FJ710 (notice, no "A" suffix to the designation). http://www.mikroe.com/eng/pro...

I haven't got the NR book at hand right now, but you may want to check the array index range for both. From what I recall NR arrays usually start with the first element at index 1, while I guess Matlab will use C convention, i.e. first element at index 0. That would explain why the NR result does n...

OK, so tried the Numerical recipes in C algorithm and it gave me some very perplexing results. :-/ I initially developed my code in matlab and, due to familiarity, tested the NR algorithm with some values against the Matlab one using the same values and compared the results. Suffice it to say, I'm q...

For the memory requirement your calculation is correct. <snip> Wolfgang Dude, you are effing legend! I really appreciate the feedback! I'm considering the dsPIC30F6014A. I noticed it had 2 SPI modules. I'm currently considering using the MCP3901 ADC ( http://www.microchip.com/wwwproducts/Devices.as...

I'm considering using SRAM, for this purpose as I'm told its very fast. The first (and only so far) memory I've considered is the Microchip 32kB SRAM ( http://www.microchip.com/ParamChartSearch/chart.aspx?branchID=270121&mid=&lang=en ). I'm concerned about the SPI interface though as I've never used...

Good day. I'm a bit unsure (not being in the industry) of how to calculate how much memory storage I'll need for some analogue to digital conversions I'll soon be doing. The ADC figures are; 16 bit 15.625 ksps 15s acq time Am I right if I do the following: samples = 15.625 x 1000 x 15 = 234 375 samp...

What? Good grief! Better make another plan in that case then. I'll soon be seeing someone that works at an electronics design firm and I'll certainly bring the matter up.

Many thanks for the heads up! I really appreciate it!