How can I use big size array?

Projects Programming
1

I need to read 4000 length of array. But when I run, I can read just one value of array. When I declare 1600 size, I can read but when the length of the array increases , just one value reading.

Since Arduino's memory was not enough, I used Texas microprocessor with Arduino codes in Energia.
The microprocessor have 256KB Flash, 32 KB SRam.

Arduino code's memory usage is as follows:

Your work has used the program's storage space of 11964 bytes (4%). Maximum 262144 bytes.Global variables use up to 1296 bytes (3%) of memory. 31472 bytes of space remain for local variables. Up to 32768 bytes can be used.
DSLite version 7.2.0.2096
Configuring Debugger (may take a few minutes on first launch)...
Initializing Register Database...
Initializing: CORTEX_M4_0
Executing Startup Scripts: CORTEX_M4_0
GEL: CORTEX_M4_0: GEL Output:

2

What type of data are you holding the the array ?

3

Data types are float. Also I tried uint32_t type, but I read just one value.

4

Data types are float

OUCH !

What does the data represent and what range of values do you need to hold ?

5

Actually I want to scan frequency between 429MHz and 433 MHz with 2khz difference.

6

So you have a start value, an end value and a step size. That sounds like a for loop to me

7

Yes I used for loop to see all the frequencies. And I used two dimensional array. The first index of array is frequencies, second index is voltage values corresponding to frequencies.

8

Are the voltages proportional to the frequencies ?

Even if they aren't you don't need the array of frequencies as you can derive the index directly from the frequency.

What range of voltages are in the array ?

9

heysen:
I need to read 4000 length of array. But when I run, I can read just one value of array. When I declare 1600 size, I can read but when the length of the array increases , just one value reading.

Sounds like there is a mistake in your programming. If you show the program, perhaps we can point out the mistake.