Search found 42 matches

by gailu
Wed Mar 18, 2020 8:22 am
Forum: ESP8266 SDK
Topic: os_timer_arm does not work for timer value more 6871 sec (6871000 ms) and above
Replies: 3
Views: 8629

Re: os_timer_arm does not work for timer value more 6871 sec (6871000 ms) and above

I am surprised that no one even from ESP team can answer the queries for bugs present in the SDK
by gailu
Sun Mar 08, 2020 1:02 am
Forum: ESP8266 SDK
Topic: os_timer_arm does not work for timer value more 6871 sec (6871000 ms) and above
Replies: 3
Views: 8629

Re: os_timer_arm does not work for timer value more 6871 sec (6871000 ms) and above

Hi,

Anyone from espressif team can please look in to the bug? It is easily reproducible.
by gailu
Thu Mar 05, 2020 1:42 am
Forum: ESP8266 SDK
Topic: os_timer_arm does not work for timer value more 6871 sec (6871000 ms) and above
Replies: 3
Views: 8629

os_timer_arm does not work for timer value more 6871 sec (6871000 ms) and above

Hi Experts, We are using non_os_sdk 2.0 with and facing following problem with os_timer_arm() api. os_timer_arm() api takes timer value in milliseconds and it is a unsigned 32 bit integer parameter. But timer is not triggered if we set timer value 6871000 (6871 seconds and above) though it works fin...
by gailu
Tue Dec 12, 2017 3:52 pm
Forum: ESP8266 SDK
Topic: UART0 RTC/CTS not working
Replies: 1
Views: 1191

UART0 RTC/CTS not working

Hi Experts, We are interfacing modem (SIM800) with UART0 of ESP-12F. We are getting Rx Overflow in UART Driver when 656 bytes are received from modem. We are trying to solve proble with RTS/CTS and made following connection as RTS/CTS line in UART Driver are GPIO15 and GPIO13 GPIO15 (RTS) ----------...
by gailu
Sat Oct 14, 2017 3:47 am
Forum: ESP8266 SDK
Topic: UART0 Receive Overflow [RX OVF!!]
Replies: 2
Views: 1780

Re: UART0 Receive Overflow [RX OVF!!]

We checked uart.c and found 100 bytes threshold set with following code WRITE_PERI_REG(UART_CONF1(uart_no), ((100 & UART_RXFIFO_FULL_THRHD) << UART_RXFIFO_FULL_THRHD_S) | Can you please let me know what is the maximum threshold we can set? What is the maximum size of UART0 RXFIFO?
by gailu
Thu Oct 12, 2017 6:03 pm
Forum: ESP8266 SDK
Topic: UART0 Receive Overflow [RX OVF!!]
Replies: 2
Views: 1780

UART0 Receive Overflow [RX OVF!!]

Hi Expressif Team, We are communicating with server through modem connected to esp8266 over UART0. When our server sends a message [256] bytes, We get UART Rx overflow and message RX OVF!! is printed on console that is coming from uart.c We have increased following defines in uart.h as the maximum s...
by gailu
Thu Oct 12, 2017 2:31 am
Forum: ESP8266 SDK
Topic: UART Tx Buffer Messed up between UART0 and UART1
Replies: 2
Views: 1962

Re: UART Tx Buffer Messed up between UART0 and UART1

It turned out to be a bug in my code. Sorry for inconvenience. In one of the code leg buffer was freed which later allocated to os_printf rightly.
by gailu
Thu Oct 12, 2017 2:09 am
Forum: ESP8266 SDK
Topic: UART Tx Buffer Messed up between UART0 and UART1
Replies: 2
Views: 1962

Re: UART Tx Buffer Messed up between UART0 and UART1

A further debugging revealed my buffer gets corrupted even before tx_buff_enq. Corruption is caused by a call to os_printf. I have buffer allocated by os_malloc(). I copy the data in to buffer. When print data with a os_printf call, I see that it is corrupted by os_printf os_printf("Transmittin...
by gailu
Wed Oct 11, 2017 7:30 pm
Forum: ESP8266 SDK
Topic: UART Tx Buffer Messed up between UART0 and UART1
Replies: 2
Views: 1962

UART Tx Buffer Messed up between UART0 and UART1

Hi Expressif Team, We are trying to use UART0 for logging (os_printf) and UART1 to communicate with other serial device. We have observed that when we send data over UART1 when os_printf is outputting data on UART0 messages through os_printf are also going on UART1. We are using tx_buff_enq() api to...
by gailu
Wed Aug 09, 2017 7:38 pm
Forum: ESP8266 SDK
Topic: Image built at QIO but programmed as DIO (ESP12-F not compatible ESP-12E)
Replies: 5
Views: 6462

Re: Image built at QIO but programmed as DIO (ESP12-F not compatible ESP-12E)

We also have ESP-12F (labelled AI-Thinker) purchased in India from eBay.in in which QIO mode works. But we also have ESP-12F purchased directly from AI-Thinker imported in July second week where QIO mode doesn't work.

Go to advanced search