Search found 29 matches

by jimbob
Sat Oct 14, 2017 1:35 pm
Forum: ESP32 HDK
Topic: Module ground/thermal pads
Replies: 4
Views: 308

Re: Module ground/thermal pads

Hello again.

If there's no definitive answer, can anyone provide the reasons behind the recommendation of not soldering the ground pad in the datasheet?

Thanks
by jimbob
Tue Sep 26, 2017 8:31 pm
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 112
Views: 5856

Re: What would you like to see in The Next Chip?

Just bumping this again, not sure if it got noticed first time. 1. a means so that peripherals can communicate with each other without waking the main core. With the ULP available this probably makes sense to use that. Think of it as DMA for interrupts! 2. A configurable logic block on some (or all)...
by jimbob
Sat Sep 23, 2017 9:39 am
Forum: General Discussion
Topic: Buying ESP parts
Replies: 6
Views: 385

Re: Buying ESP parts

Yes, I got the message back when I emailed Espressif directly.

I just wanted to check the reply emails hadn't been modified/intercepted as the reply didn't come back from Espressif, so wanted to check if other people had also received orders!
Thanks
by jimbob
Fri Sep 22, 2017 10:09 am
Forum: General Discussion
Topic: Buying ESP parts
Replies: 6
Views: 385

Buying ESP parts

I'm in the process of buying so ESP parts for a product we're building and I have been asked to place the order with Schtoeta Engineering Limited which apparently handles the export. Before I transfer a significant amount of money, can I check it is legit?

Thanks
by jimbob
Wed Sep 20, 2017 12:37 pm
Forum: ESP32 HDK
Topic: Module ground/thermal pads
Replies: 4
Views: 308

Re: Module ground/thermal pads

We're about to send a PCB off, so if we could get an official answer on this it would be really useful please? (I know you must be busy at Espressif). If not, could you share the reasoning for the data sheet saying not connecting it/pasting it -- so we can best design to ground (or not ground) it, t...
by jimbob
Wed Sep 20, 2017 12:33 pm
Forum: General Discussion
Topic: I2C breaks when initializing ESP32_LED_STRIP RMT
Replies: 3
Views: 125

Re: I2C breaks when initializing ESP32_LED_STRIP RMT

Can you physically disconnect the LEDs and try running the same code? That way you know if it's noise/browning out of the power supply?
by jimbob
Wed Sep 20, 2017 12:28 pm
Forum: ESP32 HDK
Topic: Need help to download firmware into ESP32
Replies: 22
Views: 7294

Re: Need help to download firmware into ESP32

Answering my own problem, I found that the difference between the USB->UARTs was how they handled a block of characters sent in sequence (so probably something related to buffering in them). My advice to others would be to loop back TX to RX and then compare what esptool was was trying to send, to w...
by jimbob
Tue Sep 19, 2017 2:12 pm
Forum: ESP32 HDK
Topic: Need help to download firmware into ESP32
Replies: 22
Views: 7294

Re: Need help to download firmware into ESP32

I've changed USB->UART convertor and now things work. I'd still like to work out why the other convertor did not work, so would still welcome suggestions as to where the error comes from.
THanks
by jimbob
Tue Sep 19, 2017 1:43 pm
Forum: ESP32 HDK
Topic: Need help to download firmware into ESP32
Replies: 22
Views: 7294

Re: Need help to download firmware into ESP32

I'm having problems too. I'm using a custom circuit, and I have a 500mA reg and have tried it with a bench power supply. When trying to flash or read_flash_status I get Chip is ESP32D0WDQ6 (revision 0) Uploading Stub... A fatal error occurred: Failed to write to target RAM (result was 01070000) UART...
by jimbob
Wed Aug 30, 2017 8:09 am
Forum: General Discussion
Topic: What would you like to see in The Next Chip?
Replies: 112
Views: 5856

Re: What would you like to see in The Next Chip?

1. +1 for USB 2. a means so that peripherals can communicate with each other without waking the main core. With the ULP available this probably makes sense to use that. Think of it as DMA for interrupts! 3. A configurable logic block on some (or all) of the I/O pins so I can create really simple log...