| .. _mec1501modular_assy6885: |
| |
| MEC1501 Modular card ASSY6885 |
| ############################# |
| |
| Overview |
| ******** |
| |
| The MEC1501 Modular card ASSY6885 is a development board to evaluate the Microchip |
| MEC152X series microcontrollers. This board can work standalone or be mated with |
| any platform that complies with MECC specification. |
| |
| .. image:: ./mec1501modular_assy6885.png |
| :width: 600px |
| :align: center |
| :alt: MEC1501 Modular ASSY 6885 |
| |
| Hardware |
| ******** |
| |
| - MEC1521HA0SZ ARM Cortex-M4 Processor |
| - 256 KB RAM and 64 KB boot ROM |
| - GPIO headers |
| - UART1 using microUSB |
| - PECI interface 3.0 |
| - 10 SMBUS instances |
| - FAN, PMW and TACHO pins |
| - VCI interface |
| - Independent Hardware Driven PS/2 Ports |
| |
| At difference from MEC15xx evaluation board, modular MEC1521 exposes the pins |
| in 2 different ways: |
| |
| 1) Standalone mode via headers |
| |
| - GPIOs |
| - PWM5 |
| - JTAG/SWD, ETM and MCHP Trace ports |
| - eSPI bus |
| - SMB0 |
| |
| 2) Mated mode with another platform that has a high density MECC connector. |
| |
| - FAN0, PWM0, SMB0, SMB1, SMB4 and SMB5 |
| - eSPI bus |
| - Breathing/Blinking LEDs |
| |
| The board is powered through the +5V USB Micro A connector or from the MECC connector. |
| |
| |
| For more information about the SOC please see the `MEC152x Reference Manual`_ |
| |
| Supported Features |
| ================== |
| |
| The mec1501modular_assy6885 board configuration supports the following hardware |
| features: |
| |
| +-----------+------------+-------------------------------------+ |
| | Interface | Controller | Driver/Component | |
| +===========+============+=====================================+ |
| | NVIC | on-chip | nested vector interrupt controller | |
| +-----------+------------+-------------------------------------+ |
| | SYSTICK | on-chip | systick | |
| +-----------+------------+-------------------------------------+ |
| | UART | on-chip | serial port | |
| +-----------+------------+-------------------------------------+ |
| | GPIO | on-chip | gpio | |
| +-----------+------------+-------------------------------------+ |
| | ESPI | on-chip | espi | |
| +-----------+------------+-------------------------------------+ |
| | I2C | on-chip | i2c | |
| +-----------+------------+-------------------------------------+ |
| | PINMUX | on-chip | pinmux | |
| +-----------+------------+-------------------------------------+ |
| | RTOS | on-chip | timer | |
| +-----------+------------+-------------------------------------+ |
| | TIMER | on-chip | counter | |
| +-----------+------------+-------------------------------------+ |
| | PWM | on-chip | pwm | |
| +-----------+------------+-------------------------------------+ |
| | ADC | on-chip | adc | |
| +-----------+------------+-------------------------------------+ |
| | WATCHDOG | on-chip | watchdog | |
| +-----------+------------+-------------------------------------+ |
| | PS2 | on-chip | ps2 | |
| +-----------+------------+-------------------------------------+ |
| |
| Other hardware features are not currently supported by Zephyr (at the moment) |
| |
| The default configuration can be found in the |
| :zephyr_file:`boards/arm/mec1501modular_assy6885/mec1501modular_assy6885_defconfig` |
| Kconfig file. |
| |
| Connections and IOs |
| =================== |
| |
| This evaluation board kit is comprised of the following HW blocks: |
| |
| - MEC1501 Modular Card ASSY 6885 Rev A0 `MEC1501 Modular EC Card - Assy_6885 Rev A0p1`_ |
| |
| System Clock |
| ============ |
| |
| The MEC1501 MCU is configured to use the 48Mhz internal oscillator with the |
| on-chip PLL to generate a resulting EC clock rate of 12 MHz. See Processor clock |
| control register in chapter 4 "4.0 POWER, CLOCKS, and RESETS" of the data sheet in |
| the references at the end of this document. |
| |
| Serial Port |
| =========== |
| UART1 is configured for serial logs. |
| |
| Jumper settings |
| *************** |
| |
| Please follow the jumper settings below to properly demo this |
| board. Advanced users may deviate from this recommendation. |
| |
| Jumper setting for MEC1501 Modular Assy 6885 Rev A1p0 |
| ===================================================== |
| |
| Power-related jumpers |
| --------------------- |
| |
| If you wish to power from type A/B connector ``P10`` set the jumper ``JP35 1-2``. |
| |
| If you wish to power through MECC connector ``P1`` and mate to external platform, |
| set the jumper to ``JP35 3-4``. |
| |
| .. note:: A single jumper is required in JP35. |
| |
| +------+---------+---------+------+------+------+----------+ |
| | JP30 | JP31 | JP32 | JP33 | JP34 | JP40 | JP21 | |
| | VTR3 | VTR_PLL | VTR_REG | VTR1 | VTR2 | 3.3V | VREF_ADC | |
| +======+=========+=========+======+======+======+==========+ |
| | 1-2 | 1-2 | 1-2 | 1-2 | 1-2 | 1-2 | 1-2 | |
| +------+---------+---------+------+------+------+----------+ |
| |
| |
| +------+------------+------+----------+ |
| | JP6 | JP36 | JP27 | JP4 | |
| | VBAT | VTR_ANALOG | PECI | VREF_VTT | |
| +======+============+======+==========+ |
| | 2-3 | 1-2 | 2-3 | open | |
| +------+------------+------+----------+ |
| |
| These jumpers configure nRESETI and JTAG_STRAP respectively. |
| |
| +-----------+---------------+ |
| | JP22 | JP29 | |
| | (nRESETI) | (JTAG_STRAP) | |
| +===========+===============+ |
| | 11-12 | 1-2 | |
| +-----------+---------------+ |
| |
| Boot-ROM Straps |
| --------------- |
| |
| These jumpers configure MEC1501 Boot-ROM straps. |
| |
| +-------------+------------+--------------+-------------+ |
| | JP37 | J6 | JP41 | JP23 | |
| | (CMP_STRAP) | (CR_STRAP) | (VTR2_STRAP) | (BSS_STRAP) | |
| +=============+============+==============+=============+ |
| | 1-2 | 1-2 | 1-2 | 3-4 | |
| +-------------+------------+--------------+-------------+ |
| |
| |
| ``JP23 3-4`` pulls SHD SPI CS0# up to VTR2. MEC1501 Boot-ROM samples |
| SHD SPI CS0# and if high, it loads code from SHD SPI. |
| This is the recommended setup. |
| |
| +-------------+------------+----------------------------+ |
| | CR_STRAP | BSS_STRAP | SOURCE | |
| +-------------+------------+----------------------------+ |
| | 0 | X | Use 3.3V Private SPI | |
| +-------------+------------+----------------------------+ |
| | 1 | 0 | Use eSPI Flash channel | |
| +-------------+------------+----------------------------+ |
| | | 1 | Use 3.3V Shared channel(R)| |
| +-------------+------------+----------------------------+ |
| |
| Power management |
| ---------------- |
| ``JP20 2-3`` is required so all GPIOs powered by VTR3 rail worked at 1.8V. |
| |
| .. note:: External 1.8V needs to be connected to JP13.1 |
| |
| +-------------------+-----------------+ |
| | JP20 | JP13 | |
| | (VTR3 selection) | (1.8V source) | |
| +===================+=================+ |
| | 2-3 | 1.8V to pin 1 | |
| +-------------------+-----------------+ |
| |
| |
| Jumper location map |
| ------------------- |
| |
| .. code-block:: none |
| |
| +--------------------------------------------------------------------------------------+ |
| | |------------| +----------+ J10 || | |
| | [BT1] + +------------+ J50 ++ ++ || | |
| | | JP38 JP43 ++ || || | |
| | + + + +-+ JP4 + + JP26 || || | |
| | JP6 + + + + + + + + || || | |
| | JP31 ++ JP32 JP36 +-+ JP27 + + + + J6 || | |
| | JP18 JP37 JP41 JP42 ++ | |
| | ++ + + +--------+ J48 | |
| | || JP21 + + +--------+ JP22 +----------+ | |
| | J2 || + JP34 JP30 J11 ++ | |
| | ++ + J44 || | |
| | ++ +----------------+ || | |
| | +---------------+ || + JP24 |----------------| ++ | |
| | |---------------| ++ + +----------+ +----------------+ J47 | |
| | JP20 +---------------+ JP23 JP40 +----------+ ++ | |
| | + ++ JP29 || | |
| | + + +----------+ + || | |
| | J52+---------------+ + + +----------+ J5 +-------------+ ++ | |
| | J45+---------------+ JP33 TP57 JP25 +-------------+ J4 J49 | |
| | | |
| | ++ TP4 +----------+ ++ | |
| | ++ + + + + + + TP61 +----------+ ++ | |
| | JP28 + + + + + TP65 + TP60 J51 JP35 | |
| | TP58 JP16 JP11 JP13 JP15 JP10 | |
| | TP5 | |
| | TP6 TP1 | |
| +--------------------------------------------------------------------------------------+ |
| |
| |
| Programming and Debugging |
| ************************* |
| |
| Setup |
| ===== |
| |
| #. Clone the `MEC152x SPI Image Gen`_ repository or download the files within |
| that directory. For the pre-production MEC150x use the `MEC150x SPI Image Gen`_ |
| repository. |
| |
| #. Make the image generation available for Zephyr, by making the tool |
| searchable by path, or by setting an environment variable |
| ``EVERGLADES_SPI_GEN``, for example: |
| |
| .. code-block:: console |
| |
| export EVERGLADES_SPI_GEN=<path to tool>/everglades_spi_gen_RomE |
| |
| Note that the tools for Linux and Windows have different file names. |
| For the pre-production MEC1501 SOC use everglades_spi_gen_lin64. |
| |
| #. If needed, a custom SPI image configuration file can be specified |
| to override the default one. |
| |
| .. code-block:: console |
| |
| export EVERGLADES_SPI_CFG=custom_spi_cfg.txt |
| |
| |
| Building |
| ========== |
| #. Build :ref:`hello_world` application as you would normally do. |
| |
| #. Once you have ``zephyr.bin``, use the `MEC152x SPI Image Gen`_ microchip tool |
| to create the final binary. You need the output from this tool to flash |
| in the SHD SPI memory. |
| |
| Flashing |
| ======== |
| |
| #. Connect Dediprog into header ``J2``. |
| |
| #. Flash the SPI NOR ``U3`` at offset 0x0 using Dediprog SF100 |
| or a similar tool for flashing SPI chips. |
| |
| #. Run your favorite terminal program to listen for output. Under Linux the |
| terminal should be :code:`/dev/ttyACM0`. For example: |
| |
| .. code-block:: console |
| |
| $ minicom -D /dev/ttyACM0 -o |
| |
| The -o option tells minicom not to send the modem initialization |
| string. Connection should be configured as follows: |
| |
| - Speed: 115200 |
| - Data: 8 bits |
| - Parity: None |
| - Stop bits: 1 |
| |
| #. Connect the MEC1501MODULAR_ASSY6885 board to your host computer using the |
| UART1 port and apply power. |
| |
| You should see ``"Hello World! mec1501modular_assy6885"`` in your terminal. |
| |
| Debugging |
| ========= |
| This board comes with a Cortex ETM port which facilitates tracing and debugging |
| using a single physical connection. In addition, it comes with sockets for |
| JTAG only sessions. |
| |
| HW Issues |
| ========= |
| In case you don't see your application running, please make sure ``LED1`` is lit. |
| If is off, then check the power related jumpers again. |
| |
| References |
| ********** |
| .. target-notes:: |
| |
| .. _MEC152x Preliminary Data Sheet: |
| https://github.com/MicrochipTech/CPGZephyrDocs/blob/master/MEC152x/MEC152x_Datasheet.pdf |
| .. _MEC152x Reference Manual: |
| https://github.com/MicrochipTech/CPGZephyrDocs/blob/master/MEC152x/MEC152x_Datasheet.pdf |
| .. _MEC1501 Modular EC Card - Assy_6885 Rev A0p1: |
| https://github.com/MicrochipTech/CPGZephyrDocs/blob/master/MEC1501/MEC1501%20Modular%20EC%20Card%20-%20Assy_6885%20Rev%20A0p1%20-%20SCH.pdf |
| .. _MEC152x SPI Image Gen: |
| https://github.com/MicrochipTech/CPGZephyrDocs/tree/master/MEC152x/SPI_image_gen |
| .. _MEC150x SPI Image Gen: |
| https://github.com/MicrochipTech/CPGZephyrDocs/tree/master/MEC1501/SPI_image_gen |
