Search found 49 matches

by TodWulff
Thu Sep 13, 2018 11:38 pm
Forum: Future products
Topic: Wow -- Floating point FPU
Replies: 10
Views: 7087

Re: Wow -- Floating point FPU

:) Copy. Thanks.
by TodWulff
Thu Sep 13, 2018 4:29 am
Forum: Future products
Topic: Wow -- Floating point FPU
Replies: 10
Views: 7087

Re: Wow -- Floating point FPU

Any floating point on the M4-FPU, uses the FPU, as all of those operations call compiled C code that engages the FPU I find that I am questioning if, besides the simple add, subtract, multiply, and divide, are there any other float functions in the firmware that would call these runtime float funct...
by TodWulff
Thu Sep 13, 2018 4:01 am
Forum: Kitchen sink
Topic: NXP Libraries and C/C++ Compiler's Packed Option
Replies: 2
Views: 946

NXP Libraries and C/C++ Compiler's Packed Option

In an effort to get smarter about C++/C, and TypeDef Structures/Enumerations, I've been doing some reading, with a goal to acquire enough knowledge to port library code over from NXP's headers/libs, and/or make use of their on-chip drivers. I've read this article which was quite illuminating in that...
by TodWulff
Tue Sep 11, 2018 11:38 pm
Forum: Future products
Topic: Wow -- Floating point FPU
Replies: 10
Views: 7087

Re: Wow -- Floating point FPU

Copy. Thanks.
by TodWulff
Tue Sep 11, 2018 5:07 pm
Forum: Future products
Topic: Wow -- Floating point FPU
Replies: 10
Views: 7087

Re: Wow -- Floating point FPU

Follow-on questions: What firmware routines exist that can be called from user code, to make use of the FPU libs/peripheral baked into the firmware/hardware? Are these documented in one or more of the help resources available to AB users? I've searched the local .pdf, the web .pdf, and the online .h...
by TodWulff
Tue Sep 11, 2018 4:02 pm
Forum: Other Hardware interfaces
Topic: OEM driver use for on-chip peripherals
Replies: 4
Views: 1616

Re: OEM driver use for on-chip peripherals

Hi Gary! I hope this finds you doing well, kind sir. Yeah, I am too trudging down a similar path. 8-) I've not lost steam yet & am actually revisiting using ported C libs (vs. using on-chip drivers) now that I've gained a bit of additional mental clarity. I started to recut my AB teeth with the 824 ...
by TodWulff
Tue Sep 11, 2018 2:53 pm
Forum: Serial Communication
Topic: BASICtools and USB connect/disconnect
Replies: 4
Views: 2525

Re: BASICtools and USB connect/disconnect

Understood. Yeah, I get it. Makes sense. Thank you, sir.
by TodWulff
Tue Sep 11, 2018 2:40 pm
Forum: Future products
Topic: Wow -- Floating point FPU
Replies: 10
Views: 7087

Re: Wow -- Floating point FPU

Nice. Thanks!
by TodWulff
Thu Sep 06, 2018 7:10 pm
Forum: Other Hardware interfaces
Topic: OEM driver use for on-chip peripherals
Replies: 4
Views: 1616

OEM driver use for on-chip peripherals

...with the LPC8xx series, they have a boot rom API that has routines for several built in peripherals . DO the other chips have this API available? Is there a way to CALL them ?? I2C is one I had in mind - but it requires a buffer pointer to be passed to it (along with other variables), I figure t...
by TodWulff
Thu Sep 06, 2018 6:37 pm
Forum: Serial Communication
Topic: BASICtools and USB connect/disconnect
Replies: 4
Views: 2525

Re: BASICtools and USB connect/disconnect

Pseudo related: I've seen some weirdness WRT forcing a hardware reset on a 11U37 ARMstamp and USB enumeration of the (virtual) serial port for the ARMstamp, subsequent to said hardware reset. I understand that the MCU has the USB UART peripheral internal thereto. I suspect that when the /RESET/ line...