About the espressif provided API questions!

[PaulTsai111]

Hi Espressif:

I am studying about the esp8266 provided NonRTOS SDK. API seems only with function declared in the header files and

use the function by calling the function. I did not see any details of the API. So how can I start using these APIs?

Can you give me a sample on how to test and correct using these APIs? This make me with obsession !!

[ESP_Faye]

Hi,

You can refer to the documentation 2C-ESP8266__SDK__API Guide.

And here is some sample codes http://bbs.espressif.com/viewforum.php?f=31.

Thanks for your interest in ESP8266 !

[PaulTsai111]

Hi Espressif:

Here is one simple test problem that I encoutered during monitoring the COM port terminals

I use the RTOS Version 1.4 SDK for running the simple demo code

as shown below.

after that I use ./gen_misc.sh to generate the user1.xxx.bin file

I use flash download tools to download the user1.xxx.bin file and bootv1.5.bin file

into the esp8266 IoT Refernce Compatible Board

After that , I turn off the power changed from Download Mode to Flash boot mode and power on

However, from the Serial Port Monitor tools Terminal View I can not see any correct

output from the terminal views

I am a little bit confused this result

I do not know why?

Is there any steps wrong?

[zhijianli88]

hi,

you should configure you terminal baudrate to 74880

more details pls refer to the startup guide http://bbs.espressif.com/viewtopic.php?f=51&t=1023

Thanks

[PaulTsai111]

Hi Espressif:

After studying the Espressif Starting Guide , I changed the crystal frequecy to 40MHz and set the baud rate to 115200 when downloads the bin files to the IoT Ref Compatible Board and use COM terminal monitor to monitor the messages output (baud rate =115200) when IoT Ref Board in reboot flash mode . The output still shows the strange and unknown codes. I guess it may be due to the bin compiling file is with problem , or my IoT Ref Compatible Board does not match the output bin files. (I used the newest version of NONRTOS/RTOS SDK, but Board is old version).Espressif provides the newer version of boards but our company still use older version. Can you give me some help or suggestion ? online help ?

[ESP_Faye]

Hi,

Please upload your bin files, we will download it and have a try.

Thanks for your interest in ESP8266 !

[PaulTsai111]

Hi Espressif :

The attached bin file is that I tried under the NON-RTOS V1.6 16_04_18 SDK Version. Please Check and Give Technique Help ! Thanks

[ESP_Faye]

Hi,

We tested your bin files, it works fine, it will try to connect to a router named "PaulTsai" after power on. Its baud rate is 74880.

The output still shows the strange and unknown codes.

Maybe because that your UART tool can not support baud rate 74880 ?

You can change the baud rate of ESP8266 by calling uart_init in user_init, refer to http://bbs.espressif.com/viewtopic.php?f=61&t=182.

Thanks for your interest in ESP8266 !

[PaulTsai111]

Hi Espressif :

After adding the uart_init function in my main functions, It shows that unknown type wrong messages, can you show me which header file should be included in the main files ? The attached
file is my user_main.c files. please check !


esp8266@esp8266-VirtualBox:~/ESP8266_NONSDK_V1.5.3_16_04_18/ESP8266_NONOS_SDK/prac3$ ./gen_misc.sh
gen_misc.sh version 20150511

Please follow below steps(1-5) to generate specific bin(s):
STEP 1: choose boot version(0=boot_v1.1, 1=boot_v1.2+, 2=none)
enter(0/1/2, default 2):
1
boot mode: new

STEP 2: choose bin generate(0=eagle.flash.bin+eagle.irom0text.bin, 1=user1.bin, 2=user2.bin)
enter (0/1/2, default 0):
1
generate bin: user1.bin

STEP 3: choose spi speed(0=20MHz, 1=26.7MHz, 2=40MHz, 3=80MHz)
enter (0/1/2/3, default 2):
3
spi speed: 80 MHz

STEP 4: choose spi mode(0=QIO, 1=QOUT, 2=DIO, 3=DOUT)
enter (0/1/2/3, default 0):
3
spi mode: DOUT

STEP 5: choose spi size and map
0= 512KB( 256KB+ 256KB)
2=1024KB( 512KB+ 512KB)
3=2048KB( 512KB+ 512KB)
4=4096KB( 512KB+ 512KB)
5=2048KB(1024KB+1024KB)
6=4096KB(1024KB+1024KB)
enter (0/2/3/4/5/6, default 0):
2
spi size: 1024KB
spi ota map: 512KB + 512KB


start...

make[1]: Entering directory `/home/esp8266/ESP8266_NONSDK_V1.5.3_16_04_18/ESP8266_NONOS_SDK/prac3/user'
DEPEND: xtensa-lx106-elf-gcc -M -Os -g -Wpointer-arith -Wundef -Werror -Wl,-EL -fno-inline-functions -nostdlib -mlongcalls -mtext-section-literals -ffunction-sections -fdata-sections -DICACHE_FLASH -DLWIP_OPEN_SRC -DPBUF_RSV_FOR_WLAN -DEBUF_LWIP -I include -I ./ -I ../../rom/include -I ../../include/ets -I ../include -I ../../include -I ../../include/eagle -I ../../driver_lib/include user_main.c
make[1]: Leaving directory `/home/esp8266/ESP8266_NONSDK_V1.5.3_16_04_18/ESP8266_NONOS_SDK/prac3/user'
make[1]: Entering directory `/home/esp8266/ESP8266_NONSDK_V1.5.3_16_04_18/ESP8266_NONOS_SDK/prac3/user'
xtensa-lx106-elf-gcc -Os -g -Wpointer-arith -Wundef -Werror -Wl,-EL -fno-inline-functions -nostdlib -mlongcalls -mtext-section-literals -ffunction-sections -fdata-sections -DICACHE_FLASH -DLWIP_OPEN_SRC -DPBUF_RSV_FOR_WLAN -DEBUF_LWIP -I include -I ./ -I ../../rom/include -I ../../include/ets -I ../include -I ../../include -I ../../include/eagle -I ../../driver_lib/include -o .output/eagle/debug/obj/user_main.o -c user_main.c
user_main.c:274:11: error: unknown type name 'UartBautRate'
uart_init(UartBautRate uart0_br, UartBautRate uart1_br)
^
user_main.c:274:34: error: unknown type name 'UartBautRate'
uart_init(UartBautRate uart0_br, UartBautRate uart1_br)
^
make[1]: *** [.output/eagle/debug/obj/user_main.o] Error 1
make[1]: Leaving directory `/home/esp8266/ESP8266_NONSDK_V1.5.3_16_04_18/ESP8266_NONOS_SDK/prac3/user'
make: *** [.subdirs] Error 2

[zhijianli88]

Hi Espressif:

After studying the Espressif Starting Guide , I changed the crystal frequecy to 40MHz and set the baud rate to 115200

Hi, Espressif
Does the physical crystal effect this setting ?
Assume physical crystal is 26MHz, Can I set the crystal frequecy to 40MHz at the flash tools ?

Thanks