Search found 999 matches

by ESP_igrr
Mon Jun 18, 2018 12:32 am
Forum: Hardware
Topic: ESP32 Wrover - required hardware for standalone and flash/debugging.
Replies: 1
Views: 31

Re: ESP32 Wrover - required hardware for standalone and flash/debugging.

Yes, it's possible to use wrover-kit to debug (JTAG/UART) external chip or module. You need to remove jumpers which bridge TX, RX, MTDI, MTDO, MTCK, MTMS, and connect the FT2232 side to the external board. Also connect IO0 and EN if you are using UART download. IO0 is shared with the module mounted ...
by ESP_igrr
Sun Jun 17, 2018 2:04 am
Forum: Report Bugs
Topic: I can't connect to WiFi access points with a space in the SSID.
Replies: 1
Views: 33

Re: I can't connect to WiFi access points with a space in the SSID.

I suspect it's not because of the space, but because of "5GHz"...
by ESP_igrr
Sat Jun 16, 2018 4:32 am
Forum: General Discussion
Topic: Any way to use a more up to date version of GCC?
Replies: 2
Views: 106

Re: Any way to use a more up to date version of GCC?

We are working on updating the toolchain (GCC, newlib, GDB) to more recent versions. Depending on how much breakage that will cause, the update will happen either after IDF 3.1 is released, or after the next minor version. In any case, we plan to publish our branches of {GCC, newlib} (with some IDF ...
by ESP_igrr
Sat Jun 16, 2018 2:39 am
Forum: Hardware
Topic: ESP32-PICO-D4 boot loop
Replies: 2
Views: 71

Re: ESP32-PICO-D4 boot loop

Could you please set bootloader log level to "Verbose" and give it a try? It looks like SPI flash is okay and 2nd stage bootloader gets loaded, but crashes for some reason. Maybe log output will have some extra info.
by ESP_igrr
Sat Jun 16, 2018 2:27 am
Forum: ESP32 IDF
Topic: OpenOCD can't detect ESP32 devKit C on Windows
Replies: 1
Views: 39

Re: OpenOCD can't detect ESP32 devKit C on Windows

First, you need to specify the correct interface file (jlink instead of ftdi/esp32_devkitj...). Second you have not connected TDI, which is required for JTAG to work. ESP32 does not have SWD, you need to connect all of MTDI,MTDO,MTCK,MTMS pins of the ESP32 to the JTAG adapter.
by ESP_igrr
Fri Jun 15, 2018 6:32 am
Forum: General Discussion
Topic: I need to read input from the user console
Replies: 14
Views: 747

Re: I need to read input from the user console

Just as an FYI, I got around to trying the scanf and it didn't work - it returned immediately without waiting for input, and returns a (-1). I'll have to try something else. By default, UART I/O is implemented using simple routines (blocking output, non-blocking input). To use scanf and other funct...
by ESP_igrr
Thu Jun 14, 2018 7:50 am
Forum: General Discussion
Topic: cmsis-rtos
Replies: 5
Views: 143

Re: cmsis-rtos

__asm__ ("break 0,0");

should break into debugger if OCD is enabled, and raise DebugException if not.
by ESP_igrr
Thu Jun 14, 2018 1:36 am
Forum: General Discussion
Topic: CPU and APB clock speed
Replies: 2
Views: 69

Re: CPU and APB clock speed

There are actually two PLLs, one for 320MHz and one for 480MHz. When CPU frequencies of 80/160MHz are required, 320MHz PLL is used. When 240MHz CPU frequency is required, 480MHz PLL is used. APB clock in all cases should be set to 80MHz. It is obtained by dividing CPU frequency by a factor of 2 and ...
by ESP_igrr
Tue Jun 12, 2018 3:28 pm
Forum: ESP32 IDF
Topic: Memory model: How to synchronize acces?
Replies: 3
Views: 100

Re: Memory model: How to synchronize acces?

Note that this is not FreeRTOS specific, any multithreaded C program will work the same way. C does have a "volatile" keyword which should be used in this case. Without it, compiler can safely assume that once the blink task grabs the value of freq, nothing else can change it. Hence a copy...
by ESP_igrr
Mon Jun 11, 2018 9:53 am
Forum: General Discussion
Topic: What's the meaning of the boot header lines, i.e. CONFIGSIP and SPIWP ?
Replies: 5
Views: 141

Re: What's the meaning of the boot header lines, i.e. CONFIGSIP and SPIWP ?

ets_efuse_get_spiconfig


Ah right, then it might indeed be a typo!

Go to advanced search