Search found 271 matches

by urbanze
Sun Oct 15, 2017 7:15 am
Forum: General Discussion
Topic: External source for ESP32
Replies: 3
Views: 4862

Re: External source for ESP32

3-) 3.3v pin input is chip maximum eletrical rating (Vdd)? like 2.3v - 3.6v or just 3.3v.
by urbanze
Sat Oct 14, 2017 10:40 pm
Forum: General Discussion
Topic: ESP32 - LiPo 3.7V with diode forward voltage as power source?
Replies: 8
Views: 6037

Re: ESP32 - LiPo 3.7V with diode forward voltage as power source?

Diode can drop 1v with "high current" but it's suficient to supply esp32/66. Use this to "test and protoboard" is ok?
by urbanze
Sat Oct 14, 2017 9:19 pm
Forum: General Discussion
Topic: ESP32 - LiPo 3.7V with diode forward voltage as power source?
Replies: 8
Views: 6037

Re: ESP32 - LiPo 3.7V with diode forward voltage as power source?

Why diode is a bad idea? In my city, I cant find any "low drop out" with <1v voltage drop, my last solution is simple diode, but why is bad?
by urbanze
Fri Oct 13, 2017 7:50 pm
Forum: General Discussion
Topic: ULP global variables
Replies: 49
Views: 20241

Re: ULP global variables

This should fix it: https://github.com/espressif/binutils-esp32ulp/pull/5 This question is kind of strange, but how can I add this edited file to binutils? For the installation, I used the files "ready": (https://github.com/espressif/binutils-esp32ulp/wiki#downloads), and installed directly in the ...
by urbanze
Fri Oct 13, 2017 3:37 pm
Forum: General Discussion
Topic: ULP global variables
Replies: 49
Views: 20241

Re: ULP global variables

Yes, that is an issue (bug) with the ULP assembler, labels like 1b and 1f do not work. I plan to look at it in the assembler sources, because GAS should be able to handle these labels. This should fix it: https://github.com/espressif/binutils-esp32ulp/pull/5 This question is kind of strange, but ho...
by urbanze
Wed Oct 11, 2017 10:48 pm
Forum: General Discussion
Topic: ULP global variables
Replies: 49
Views: 20241

Re: ULP global variables

Why assembly of ulp is "raw"?

Whats the version/name of this assembly? I would like to study it, but not find any name/version, most similar (I think) is GNU assembly, but various mnemonics not exist or not work...
by urbanze
Tue Oct 10, 2017 9:16 pm
Forum: General Discussion
Topic: ULP global variables
Replies: 49
Views: 20241

Re: ULP global variables

https://github.com/tomtor/ulp-i2c .macro I2C_delay wait 10 // 38 // minimal 4.7us .endm .macro read_SCL // Return current level of SCL line, 0 or 1 READ_RTC_REG(RTC_GPIO_IN_REG, RTC_GPIO_IN_NEXT_S + 9, 1) // RTC_GPIO_9 == GPIO_32 .endm .macro read_SDA // Return current level of SDA line, 0 or 1 REA...
by urbanze
Tue Oct 10, 2017 1:40 pm
Forum: General Discussion
Topic: ULP global variables
Replies: 49
Views: 20241

Re: ULP global variables

See http://gist.github.com/tomtor/fa7d6d2cbd8d9b076a503107330be3a1 For subroutine examples See also https://www.esp32.com/viewtopic.php?f=2&t=3228 Hi tomtor! Thanks for reply. You know how do this without use r0-r3 registers? I can do simples static functions with .macro, but I really want call/ret...
by urbanze
Mon Oct 09, 2017 4:19 am
Forum: General Discussion
Topic: ULP global variables
Replies: 49
Views: 20241

Re: ULP global variables

See http://gist.github.com/tomtor/fa7d6d2cbd8d9b076a503107330be3a1 For subroutine examples See also https://www.esp32.com/viewtopic.php?f=2&t=3228 Hi tomtor! Thanks for reply. You know how do this without use r0-r3 registers? I can do simples static functions with .macro, but I really want call/ret...
by urbanze
Fri Oct 06, 2017 6:10 pm
Forum: General Discussion
Topic: ULP global variables
Replies: 49
Views: 20241

Re: ULP global variables

Hi urbanze, I am happy to see that you have answered most of the questions already! 2-) The assembly code only worked with .bss and .text (removing them, not working). What they do? Why and when should I put them? I did not see them saying anything about them. If there really is not and that is why...

Go to advanced search