- Updated basic samples READMEs to use the new zephyr:code-sample:: directive. Dropped "-sample" suffix that's not required anymore now that samples have their own namespace. - Updated all references to the samples to use the :zephyr:code-sample: role. Checked and updated the wording of said references to account for the fact that samples should not have "... sample" in their name anymore. Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>
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4.5 KiB
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136 lines
4.5 KiB
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.. _segger_trb_stm32f407:
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Cortex-M Trace Reference Board V1.2
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###################################
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Overview
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********
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The Cortex-M Trace Reference Board V1.2 (SEGGER-TRB-STM32F407 for short)
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board is a reference board, based on the ST Microelectronics STM32F407VE
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ARM Cortex-M4 CPU, to test hardware tracing with the SEGGER Trace-Pro
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debuggers. It is not meant for general prototype development because
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it is extremely limited when it comes to IO, and only has 3 LEDs.
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.. figure:: img/segger_trb_stm32f407.jpg
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:align: center
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:alt: SEGGER-TRB-STM32F407
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SEGGER-TRB-STM32F407
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Hardware
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********
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Information about the board can be found at the `SEGGER website`_ .
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The `ST STM32F407VE website`_ contains the processor's information
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and the datasheet.
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Supported Features
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==================
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The SEGGER-TRB-STM32F407 board configuration supports the following
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hardware features:
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+------------+------------+------------------------------+
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| Interface | Controller | Driver/Component |
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+============+============+==============================+
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| NVIC | on-chip | nested vectored |
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| | | interrupt controller |
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+------------+------------+------------------------------+
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| SYSTICK | on-chip | system clock |
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+------------+------------+------------------------------+
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| GPIO | on-chip | gpio |
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+------------+------------+------------------------------+
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| WATCHDOG | on-chip | independent watchdog |
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+------------+------------+------------------------------+
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| COUNTER | on-chip | rtc |
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+------------+------------+------------------------------+
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| RNG | on-chip | True Random number generator |
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+------------+------------+------------------------------+
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Other hardware features have not been enabled yet for this board.
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Pin Mapping
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===========
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LED
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---
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* LED0 (green) = PA8
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* LED1 (green) = PA9
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* LED2 (green) = PA10
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External Connectors
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-------------------
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JTAG/SWD debug
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+-------+--------------+-------+--------------+
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| PIN # | Signal Name | Pin # | Signal Name |
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+=======+==============+=======+==============+
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| 1 | VTref | 2 | SWDIO/TMS |
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+-------+--------------+-------+--------------+
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| 3 | GND | 4 | SWCLK/TCK |
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+-------+--------------+-------+--------------+
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| 5 | GND | 6 | SWO/TDO |
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+-------+--------------+-------+--------------+
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| 7 | --- | 8 | TDI |
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+-------+--------------+-------+--------------+
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| 9 | NC | 10 | nRESET |
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+-------+--------------+-------+--------------+
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| 11 | 5V-Supply | 12 | TRACECLK |
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+-------+--------------+-------+--------------+
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| 13 | 5V-Supply | 14 | TRACEDATA[0] |
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+-------+--------------+-------+--------------+
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| 15 | GND | 16 | TRACEDATA[1] |
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+-------+--------------+-------+--------------+
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| 17 | GND | 18 | TRACEDATA[2] |
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+-------+--------------+-------+--------------+
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| 19 | GND | 20 | TRACEDATA[3] |
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+-------+--------------+-------+--------------+
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System Clock
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============
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SEGGER-STM32F407-TRB has one external oscillator. The frequency of
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the main clock is 12 MHz. The processor can setup HSE to drive the
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master clock, which can be set as high as 168 MHz.
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Programming and Debugging
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*************************
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The SEGGER-TRB-STM32F407 board is specially designed to test the SEGGER
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Trace-Pro debuggers, so this example assumes a J-Trace or J-Link is used.
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Flashing an application to the SEGGER-TRB-STM32F407
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===================================================
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Connect the J-Trace/J-Link USB dongle to your host computer and to the JTAG
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port of the SEGGER-TRB-STM32F407 board. Then build and flash an application.
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Here is an example for the :zephyr:code-sample:`blinky` application.
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.. zephyr-app-commands::
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:zephyr-app: samples/basic/blinky
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:board: segger_trb_stm32f407
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:goals: build flash
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After resetting the board, you should see LED0 blink with a 1 second interval.
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Debugging
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=========
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Here is an example for the :zephyr:code-sample:`blinky` application.
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.. zephyr-app-commands::
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:zephyr-app: samples/basic/blinky
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:board: segger_trb_stm32f407
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:maybe-skip-config:
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:goals: debug
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.. _SEGGER website:
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https://www.segger.com/products/debug-probes/j-trace/accessories/trace-reference-boards/overview/
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.. _ST STM32F407VE website:
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https://www.st.com/en/microcontrollers-microprocessors/stm32f407ve.html
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