Search found 34 matches

by tabulous
Thu Jul 09, 2020 11:43 am
Forum: General Discussion
Topic: Low power deep sleep issues WROOM-32 vs PICO-D4 (IDFGH-3624)
Replies: 7
Views: 598

Re: Low power deep sleep issues WROOM-32 vs PICO-D4 (IDFGH-3624)

Hi Angus
thankyou for this, will look forward to your response and hopefully a solution :-)

KR
by tabulous
Thu Jul 09, 2020 9:47 am
Forum: General Discussion
Topic: Low power deep sleep issues WROOM-32 vs PICO-D4 (IDFGH-3624)
Replies: 7
Views: 598

Re: Low power deep sleep issues WROOM-32 vs PICO-D4

Hi Angus, here is my answers to your questions 32Khz - even with this removed and the sdkconfig set to defaults "RTC and high-resolution timer" and "Internal 150khz RC Osc" its still 500uA On the PINs - i would expect this is cause an issue with the zoom module too then, but it doesn't. I can try th...
by tabulous
Tue Jul 07, 2020 8:29 am
Forum: General Discussion
Topic: Low power deep sleep issues WROOM-32 vs PICO-D4 (IDFGH-3624)
Replies: 7
Views: 598

Re: Low power deep sleep issues WROOM-32 vs PICO-D4

Bump.........
Come on support !!! where are you ?
by tabulous
Mon Jul 06, 2020 1:38 pm
Forum: General Discussion
Topic: Low power deep sleep issues WROOM-32 vs PICO-D4 (IDFGH-3624)
Replies: 7
Views: 598

Re: Low power deep sleep issues WROOM-32 vs PICO-D4

Here is the units under test, as you can see these boards are bare, just the modules and some decouple caps.
IMG_20200706_143523.jpg
IMG_20200706_143523.jpg (1.4 MiB) Viewed 573 times
by tabulous
Mon Jul 06, 2020 10:59 am
Forum: General Discussion
Topic: Low power deep sleep issues WROOM-32 vs PICO-D4 (IDFGH-3624)
Replies: 7
Views: 598

Low power deep sleep issues WROOM-32 vs PICO-D4 (IDFGH-3624)

this code give completely differnet results on the above modules. WROOM-32 deep sleeps at 5uA this is as expected. PICO-D4 will only deep sleep at 500uA.... !!!!!! I believe there is a silicon issue on the PICO-D4 ? why would they be so diffferent ? void app_main(void) { while(true) { printf("Sleepi...
by tabulous
Fri Jul 03, 2020 2:35 pm
Forum: General Discussion
Topic: pppos_client bug/issue !! [IDFGH-3620]
Replies: 3
Views: 371

Re: pppos_client bug/issue !!

The issue is if the modem sends 1 byte of data before the ppp is init....... a UART_DATA event type is generated thus this calls esp_handle_uart_data and tries to use pppos_input_tcpip(esp_dte->ppp, esp_dte->buffer, length); esp_dte->ppp is not init so it crashes static void uart_event_task_entry(vo...
by tabulous
Wed Jul 01, 2020 8:59 am
Forum: General Discussion
Topic: pppos_client bug/issue !! [IDFGH-3620]
Replies: 3
Views: 371

Re: pppos_client bug/issue !!

bump anyone ?

Or is this going to be another no response ?
Support on here is terrible.
by tabulous
Tue Jun 30, 2020 2:03 pm
Forum: General Discussion
Topic: pppos_client bug/issue !! [IDFGH-3620]
Replies: 3
Views: 371

pppos_client bug/issue !! [IDFGH-3620]

There is an issue with this example, if the modem sends back a char(s) of data when switched on the ppp control block is null. This is because in the example esp_modem_setup_ppp(dte); is called afterwards, this means esp_dte->ppp is null esp_dte->ppp = pppapi_pppos_create(&(esp_dte->pppif), pppos_lo...
by tabulous
Fri Jun 26, 2020 10:08 am
Forum: General Discussion
Topic: ESP32-PICO-D4 Low Power ?????
Replies: 6
Views: 605

Re: ESP32-PICO-D4 Low Power ?????

Little update as support on here is slow at the best........ I'm finding these devices are very, very sensitive, my board which was giving 40mA run / 0.5mA deep sleep, is now deep sleeping at 28mA. This can only be chip silicon damage....... Having worked with(over 20years) manufactures like STM, Re...
by tabulous
Thu Jun 25, 2020 11:41 am
Forum: General Discussion
Topic: ESP32-PICO-D4 Low Power ?????
Replies: 6
Views: 605

Re: ESP32-PICO-D4 Low Power ?????

So to ensure nothing on my target board can have an effect on the ESP32 current, i've just built another board. This board only has the ESP32, two de-coupling caps( 10uf, 100nf ) on the VDDA, and a 32Khz crystal(with 12pf CL caps). I can now see the current is down to 500uA, but this to me is still ...

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