Search found 8 matches
- Fri Apr 13, 2018 6:04 pm
- Forum: General Discussion
- Topic: ULP, use Byte instead of Long
- Replies: 4
- Views: 6469
Re: ULP, use Byte instead of Long
Thanks, Thought about packing them in a 32bis long but the registers, r0, r1, r2, r3 are 16bits long. And we can't offset by 1-3 bytes with ld instruction. Also, ld instruction loads 32bits at a time. What igrr said, can't load the higher 16 bits. Shifting doesn't help becuase it is a 16bits registe...
- Thu Apr 12, 2018 7:17 pm
- Forum: General Discussion
- Topic: ULP, use Byte instead of Long
- Replies: 4
- Views: 6469
ULP, use Byte instead of Long
.data .global romid1 romid: .byte 0x01 .byte 0x02 .byte 0x03 .byte 0x04 .byte 0x05 .byte 0x06 .byte 0x07 .byte 0x08 .byte 0x09 .byte 0x0A .byte 0x0B .byte 0x0C move r0, romid1 ld r1, r0,0 // 0x0201, since register is 16bit so lower bits get stored. ld r1,r0, 1 // 0x0201, can't off set by 1 byte ld ...
- Fri Apr 06, 2018 8:00 pm
- Forum: Sample Code
- Topic: ULP DS18B20 1-Wire code
- Replies: 3
- Views: 9279
Re: ULP DS18B20 1-Wire code
Added a few more subroutines since then. Before it was a single DS18B20 environment without CRC8 checking. Now it can talk to multiple DS18b20 and has CRC8 checking. But it is a lot more messy and harder to read. Overall, great learning experience. -- search_rom - look for 64bit Rom Identification o...
- Tue Apr 03, 2018 8:15 pm
- Forum: General Discussion
- Topic: What is the best environment to work with ESP32 projects
- Replies: 5
- Views: 27447
Re: What is the best environment to work with ESP32 projects
Not a best but I am on MacOS with vi and pretty happy.
- Mon Mar 26, 2018 9:45 pm
- Forum: General Discussion
- Topic: Looking for ESP32 Developer
- Replies: 9
- Views: 11835
Re: Looking for ESP32 Developer
I would like to gain some ESP32 experiences. So, you need a free hand on on entry level stuff, I am there.
- Wed Mar 14, 2018 8:18 pm
- Forum: Sample Code
- Topic: ULP DS18B20 1-Wire code
- Replies: 3
- Views: 9279
ULP DS18B20 1-Wire code
Wrote ULP assembly code to get temperature from a DS18B20 to save energy. Its for learning purpose. In case someone is new and wants to learn ULP, it is pretty simple to read. Feel free to ask question. https://github.com/fhng/ESP32-ULP-1-Wire/
- Mon Jan 22, 2018 7:14 pm
- Forum: General Discussion
- Topic: Technical Reference Chapter 4 is confusing
- Replies: 6
- Views: 8504
Re: Technical Reference Chapter 4 is confusing
This helps a lot, thx.
- Wed Nov 01, 2017 10:43 pm
- Forum: Showcase
- Topic: ESP32 ePaper display library
- Replies: 5
- Views: 31492
Re: ESP32 ePaper display library
I too got "make: *** No rule to make target `makefs'. Stop." with >make copyfs, like syohana. But compiled it with esp-idf v2 and toolchain 1.22.0-61 fixed it. Updated to latest esp-idf and toolchain, it failed at "make all" CC build/spiffs/spiffs_vfs.o /Users/lighflares/esp/epaper/ESP32_ePaper_exam...