Search found 85 matches

by joepasquariello
Wed Jun 24, 2020 3:29 pm
Forum: NetBurner Software
Topic: MOD54415 IRQ question.
Replies: 10
Views: 13302

Re: MOD54415 IRQ question.

Ah, that makes sense. Clearing the interrupt also clears the status flag, so you have to read status before clearing interrupts.

One other way to get the result you want is to start with interrupt on rising edge, then switching to falling edge within the ISR, and so on. CP2102's solution is better.
by joepasquariello
Thu Mar 19, 2020 1:24 pm
Forum: NetBurner Software
Topic: MOD5213 iprintf() error for UL and ULL types?
Replies: 21
Views: 18400

Re: MOD5213 iprintf() error for UL and ULL types?

Well, to be fair, it was designed 50 years ago, so they were on to something. Before C there was B, which was short for BCPL, so the next language just had to be called C. These were no-nonsense people, obviously. Now we have ... Python?
by joepasquariello
Sun Mar 15, 2020 1:46 pm
Forum: NetBurner Software
Topic: MOD5213 iprintf() error for UL and ULL types?
Replies: 21
Views: 18400

Re: MOD5213 iprintf() error for UL and ULL types?

KE5FX, according to the link below, the length specifier "L" (capital) is for long double only. For 64-bit (long long) integers, use "ll" and "ull".

Joe

https://en.cppreference.com/w/cpp/io/c/fprintf
by joepasquariello
Wed Apr 10, 2019 5:59 pm
Forum: NetBurner Software
Topic: MOD5213 siprintf()
Replies: 0
Views: 5447

MOD5213 siprintf()

Hello NB, I'm using 2.7.7 tools with MOD5213. The siprintf() in the system_nn library does not NULL-terminate its output string. I checked the system library, and the string functions there do add a NULL-terminator, along with a comment that the NULL-terminator is required when the format string is ...
by joepasquariello
Tue Aug 28, 2018 10:34 am
Forum: NetBurner Hardware
Topic: 5213 DMA Timer Question
Replies: 4
Views: 5671

Re: 5213 DMA Timer Question

Yes, I'm using INTERRUPT. Here is the call to SetIntc(), the ISR, and a function to configure the DMA timer for IC. SetIntc( (long)&dtim0_isr, 19+0, 6, 4+0 ); // vector=19, level=6, pri=4 /****************************************************************************** * INTERRUPT - DMA Timer 0 In...
by joepasquariello
Sat Aug 25, 2018 7:22 am
Forum: NetBurner Hardware
Topic: 5213 DMA Timer Question
Replies: 4
Views: 5671

Re: 5213 DMA Timer Question

Hi Paul, Thanks for your reply. No, I'm not turning interrupts on and off. Interrupts occur on rising edges, and the ISR is as short as I can make it. It just clears the CAP interrupt flag, reads the capture register, computes period, and posts the period value to an OS_Q. The values in the OS_Q are...
by joepasquariello
Thu Aug 23, 2018 5:20 pm
Forum: NetBurner Hardware
Topic: 5213 DMA Timer Question
Replies: 4
Views: 5671

5213 DMA Timer Question

Hello, We are using a DMA timer configured for input capture on rising edges to measure the period of a low-frequency signal (0-100 Hz). The signal source is a proximity sensor, whose output is converted to fiber. Our board has a fiber receiver with slow rise/fall times. Rise times are 50-60 ns and ...
by joepasquariello
Thu Aug 09, 2018 9:58 am
Forum: NetBurner Software
Topic: periodic timer interrupt
Replies: 6
Views: 4798

Re: periodic timer interrupt

See the project in the examples folder: nburn\examples\MOD5441X\MOD5441x-PIT-Timer

There are also ways to do this with no interrupts. You can use the PWM module or a DMA timer to produce a square wave at the desired frequency.

Joe
by joepasquariello
Mon Feb 12, 2018 2:56 pm
Forum: NetBurner Software
Topic: IRQs on Nano and 54415
Replies: 6
Views: 6885

Re: IRQs on Nano and 54415

Ridgeglider, Paul is right that interrupt level is of much greater importance than priority (within level), but I was curious about the missing "priority" argument for the 54415 version of SetIntc(), and here's what I found: The V2 coldfire (5213, 5234, 5270, etc.) supports 7 settable prio...
by joepasquariello
Mon Feb 12, 2018 2:16 pm
Forum: NetBurner Software
Topic: Module capability like a DLL?
Replies: 2
Views: 3138

Re: Module capability like a DLL?

This is how I create libraries with NBEclipse: 1) From File menu, choose New, then Project. 2) When the New Project window opens a) choose NetBurner Project b) press Next button 3) When the C++ Project window opens a) enter Project Name b) change Project Type from NetBurner Executable to NetBurner D...