Is there an Energia matrix math library for the msp430 and Stellaris

[xv4y 46]

I had unpredictable hardware serial port issues when I when using too much RAM...

Try to reduce the RAM (not Flash) usage and see if it works.

 

Yan.

[Rei Vilo 695]

...or try using it on the StellarPad that features much more RAM!

 

At USD13, the StellarPad is worth the extra USD9 compared to the USD4 LaunchPad MSP430!

[energia 484]

So I was under the impression that you we running this on the StellarPad? Can you confirm on which platform you are running? StellarPad or LaunchPad?

 

If you are running on the LaunchPad then you could very well be running out of RAM.

 

The Serial lib takes up about 142 bytes. An empty Sketch takes about 32. So a Sketch using Serial is around 174 bytes of RAM. The 2553 has 512 bytes of RAM.

That leaves you very little for the Matrix itself taking in account that you need enough RAM to accommodate a call stack. If you are indeed running on the MSP430 then you are probably running into the case where the stack grows more then RAM left and causes a stack overflow into working RAM.

 

I compiled the MatrixMath_main example Sketch and examined it with msp430-size -A MatrixMath_main.cpp.elf.

That gives the following output. Note the .bss section is close to 512 bytes.

 

MatrixMath_main.cpp.elf  :
section            size    addr
.text              8976   49152
.rodata             482   58128
.data                 8     512
.bss                478     520
.noinit               2     998
.vectors             32   65504
.debug_aranges     1712       0
.debug_info       50231       0
.debug_abbrev     14137       0
.debug_line       17269       0
.debug_frame       5014       0
.debug_str         9925       0
.debug_loc        16438       0
.debug_ranges       884       0
Total            125588

Compile the same Sketch for a 2452 (that only has 256 bytes of RAM) and the linker will warn you that you overflowed.

 

Edit: Changed 128 -> 256