Search found 1158 matches

by WiFive
Sat Nov 18, 2017 8:10 pm
Forum: ESP32 SDK
Topic: Possible to use RMT for simultaneous input and output on the same gpio line, for 1-wire?
Replies: 5
Views: 86

Re: Possible to use RMT for simultaneous input and output on the same gpio line, for 1-wire?

Rmt_set_pin for TX will enable the output driver by default, so you could immediately disable it or rewrite the tx pin setup
by WiFive
Sat Nov 18, 2017 3:55 am
Forum: ESP32 SDK
Topic: Possible to use RMT for simultaneous input and output on the same gpio line, for 1-wire?
Replies: 5
Views: 86

Re: Possible to use RMT for simultaneous input and output on the same gpio line, for 1-wire?

Active drive is probably only a problem with multiple parasite power devices doing simultaneous conversions.

But you should enable open drain mode in init either way.
by WiFive
Sat Nov 18, 2017 2:13 am
Forum: ESP32 SDK
Topic: Possible to use RMT for simultaneous input and output on the same gpio line, for 1-wire?
Replies: 5
Views: 86

Re: Possible to use RMT for simultaneous input and output on the same gpio line, for 1-wire?

Why heavily modified? Why did you take out the open drain, active drive stuff?
by WiFive
Fri Nov 17, 2017 10:47 am
Forum: General Discussion
Topic: What is the purpose of two OTA partition?
Replies: 8
Views: 104

Re: What is the purpose of two OTA partition?

Factory will not be updated, but it is also not required. But it is insurance to be able to factory reset to a (hopefully) known stable firmware even after many ota updates.
by WiFive
Fri Nov 17, 2017 9:41 am
Forum: General Discussion
Topic: What is the purpose of two OTA partition?
Replies: 8
Views: 104

Re: What is the purpose of two OTA partition?

You can't erase currently running app
by WiFive
Thu Nov 16, 2017 2:23 am
Forum: General Discussion
Topic: I2C drivers seems to be corrupting memory
Replies: 2
Views: 78

Re: I2C drivers seems to be corrupting memory

i2c_master_read_byte does not actually perform a read until i2c_master_cmd_begin is called
by WiFive
Wed Nov 15, 2017 3:22 am
Forum: General Discussion
Topic: 0.66 clock scaling after reset
Replies: 1
Views: 44

Re: 0.66 clock scaling after reset

Can you say which branch/commit of esp-idf you are using
by WiFive
Tue Nov 14, 2017 1:28 am
Forum: ESP32 SDK
Topic: sd_card examples do not build with IDF ver 3
Replies: 5
Views: 136

Re: sd_card examples do not build with IDF ver 3

Just tried and it built with no errors
by WiFive
Mon Nov 13, 2017 6:51 pm
Forum: ESP32 SDK
Topic: esp-idf vs arduino
Replies: 2
Views: 175

Re: esp-idf vs arduino

The problem with some Arduino library code is that it has no hardware specific optimizations

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