Re: How is the ULP coprocessor going to be programmed?
Posted: Thu Oct 05, 2017 7:29 pm
by urbanze
Anyone can write an example of "blink" with ulp? Just toggle on/off a pin...
I tried with "libraries" WRITE_RTC_REG(RTC_IO_TOUCH_PAD0_REG,RTC_IO_TOUCH_PAD0_HOLD_S,1,0) and simillars but doesnt worked. I had sucess with use ulp + delay, for, whiles, vars, but gpio not.
Re: How is the ULP coprocessor going to be programmed?
Posted: Thu Oct 05, 2017 8:56 pm
by krzychb
Just toggle on/off a pin...
Check
https://github.com/krzychb/ulp-loop.
Re: How is the ULP coprocessor going to be programmed?
Posted: Thu Oct 05, 2017 9:19 pm
by urbanze
I see before, and dont understand write(reg)
You can explain better how it work?
Re: How is the ULP coprocessor going to be programmed?
Posted: Fri Oct 06, 2017 5:31 am
by krzychb
I see before, and dont understand write(reg)
There are several instances of using "WRITE_RTC_REG" in
https://github.com/krzychb/ulp-loop/blo ... op_blink.S.
Which one would you like to be clarified?
Or you do not understand description in manual -
http://esp-idf.readthedocs.io/en/latest ... ers-access
Re: How is the ULP coprocessor going to be programmed?
Posted: Fri Oct 06, 2017 6:55 am
by tomtor
Which sentence in readthedocs are you referring to (regarding 'the readthedocs html docu specify that a signed byte offset can be used to read data')?
Quoute:
https://esp-idf.readthedocs.io/en/lates ... the-memory
=============================================================
LD – Load data from the memory
Syntax
LD Rdst, Rsrc, offset
Operands
Rdst – Register R[0..3], destination
Rsrc – Register R[0..3], holds address of destination, in 32-bit words
Offset – 10-bit signed value, offset in
BYTES
=============================================================
See also
viewtopic.php?f=2&t=3228&p=15171#p15171
for working subroutines
Re: How is the ULP coprocessor going to be programmed?
Posted: Fri Oct 06, 2017 7:34 am
by ESP_igrr
Offset – 10-bit signed value, offset in BYTES
That looks correct, please see the following section for an explanation:
https://esp-idf.readthedocs.io/en/lates ... addressing
Very nice example, thanks.
Re: How is the ULP coprocessor going to be programmed?
Posted: Fri Oct 06, 2017 1:59 pm
by urbanze
hoho, sucess! Thanks for this links.
See code for simple blink with 1sec delay:
https://i.imgur.com/Z7Am2rp.png
