Search found 2887 matches

by WiFive
Fri Feb 07, 2020 4:34 am
Forum: ESP32 IDF
Topic: flash read err, 1000(Secure boot + Flash encryption)
Replies: 1
Views: 194

Re: flash read err, 1000(Secure boot + Flash encryption)

If you do not have both the encryption key and secure boot key saved externally then no.
by WiFive
Fri Feb 07, 2020 12:01 am
Forum: ESP32 IDF
Topic: Using all three UARTS for module communication
Replies: 4
Views: 500

Re: Using all three UARTS for module communication

username wrote:
Thu Feb 06, 2020 4:59 pm
Are you using an ESP32 Module of some sort? If so, it already has a USB - Serial interface connected to UART0. So you will not be able to use UART0 RX line unless you cut the RX trace from it to the ESP32 module.
No you can just initialize it on different pins
by WiFive
Thu Feb 06, 2020 7:15 am
Forum: ESP32 IDF
Topic: It's possible to use ESP32 and ESP-IDF with two CAN ports?
Replies: 3
Views: 343

Re: It's possible to use ESP32 and ESP-IDF with two CAN ports?

It's up to you. Check the internal can errata and issues first.
by WiFive
Thu Feb 06, 2020 2:04 am
Forum: Hardware
Topic: UART boot VS download boot Trouble
Replies: 2
Views: 350

Re: UART boot VS download boot Trouble

GPIO2 must also be either left unconnected/floating, or driven Low, in order to enter the serial bootloader.
by WiFive
Wed Feb 05, 2020 7:31 pm
Forum: ESP32 IDF
Topic: Remedy for overflow of iram0_0_seg?
Replies: 3
Views: 326

Re: Remedy for overflow of iram0_0_seg?

No it is not adjusted automatically.
by WiFive
Wed Feb 05, 2020 7:23 pm
Forum: General Discussion
Topic: ESP32 RAM Allocation breakdown
Replies: 2
Views: 531

Re: ESP32 RAM Allocation breakdown

Heap uses what is left after static data and iram and cache requirements so you can't increase it without decreasing something else.
by WiFive
Wed Feb 05, 2020 4:14 am
Forum: ESP32 IDF
Topic: It's possible to use ESP32 and ESP-IDF with two CAN ports?
Replies: 3
Views: 343

Re: It's possible to use ESP32 and ESP-IDF with two CAN ports?

No, you have to use an external chip like tcan4550
by WiFive
Wed Feb 05, 2020 4:09 am
Forum: ESP32 IDF
Topic: Remedy for overflow of iram0_0_seg?
Replies: 3
Views: 326

Re: Remedy for overflow of iram0_0_seg?

You are extending into iram1 which is also used as heap memory and apptrace memory
by WiFive
Wed Feb 05, 2020 3:55 am
Forum: General Discussion
Topic: Espressif CEO Letter 2020 || 乐鑫科技 CEO Letter 2020
Replies: 3
Views: 962

Re: Espressif CEO Letter 2020

4 new chips
:!:
by WiFive
Tue Feb 04, 2020 10:41 pm
Forum: Hardware
Topic: Uart RX losing data when recieving data at high baud rates
Replies: 7
Views: 713

Re: Uart RX losing data when recieving data at high baud rates

At 460800 a byte comes every 2us so if your Rx thresh is 120 you have 8x2=16us to start copying bytes out of the fifo before it overflows. If thresh is 64 then you have 64x2=128us but your interrupt runs twice as often. If you are not able to get good performance from tuning thresh and buffer size y...

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