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by ESP_igrr
Tue Jun 19, 2018 11:38 pm
Forum: ESP32 IDF
Topic: esp_register_freertos_tick_hook() verus FreeRTOS vApplicationTickHook()
Replies: 2
Views: 92

Re: esp_register_freertos_tick_hook() verus FreeRTOS vApplicationTickHook()

For the information about FreeRTOS hooks in ESP-IDF, please see https://docs.espressif.com/projects/esp-idf/en/latest/api-reference/system/freertos_additions.html#hooks. CONFIG_FREERTOS_HZ sets RTOS tick frequency. Same tick frequency is used for both CPUs, although ticks on the two CPUs are not syn...
by ESP_igrr
Tue Jun 19, 2018 11:30 pm
Forum: General Discussion
Topic: Interrupt Priority Levels: Lower Numbers = Higher Prio or vice versa?
Replies: 1
Views: 63

Re: Interrupt Priority Levels: Lower Numbers = Higher Prio or vice versa?

Level 1 is the lowest:
https://docs.espressif.com/projects/esp ... LAG_LEVEL1

Interrupts with higher level can preempt code running at lower interrupt level.
by ESP_igrr
Tue Jun 19, 2018 4:13 am
Forum: General Discussion
Topic: ESP32 as sdio host,how to push the data out through sdio without sdio command?
Replies: 5
Views: 118

Re: ESP32 as sdio host,how to push the data out through sdio without sdio command?

I don't think it's possible to "push data" through SDIO without actually sending SDIO commands. But you might be able to avoid sending all the initialisation commands required by SDIO standard if you call sdmmc_host_do_transaction directly. I.e.: - call sdmmc_host_init to initialize the ho...
by ESP_igrr
Mon Jun 18, 2018 12:32 am
Forum: Hardware
Topic: ESP32 Wrover - required hardware for standalone and flash/debugging.
Replies: 3
Views: 143

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: 68

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: 136

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: 103

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: 2
Views: 81

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: 774

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: 149

Re: cmsis-rtos

__asm__ ("break 0,0");

should break into debugger if OCD is enabled, and raise DebugException if not.

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