This version (23 Nov 2023 16:26) was approved by Radu Etz.The Previously approved version (08 Nov 2023 13:20) is available.
Table of Contents
AD-ACEVSECRDSET-SL Software User Guide
The AD-ACEVSECRDSET-SL is an electric vehicle (EV) type 2 charging system based on ADI's microcontroller and energy metering technology. This solution is designed for a Type 2 EVSE 3.6 kW EV charging cable, enabling easy integration with standard EV systems.
The AD-ACEVSECRDSET-SL is designed to meet IEC61851 and IEC62752 standards and includes a Type A residual current device (RCD) and a control pilot circuit.
The no-OS framework and the drivers for the main components
no-OS general description
no-OS is a software framework by Analog Devices Inc for systems that don’t include an operating system (OS), otherwise known as baremetal. This framework defines a common interface (API) for accessing typical baremetal peripherals such as GPIO, SPI, I2C, RTC, Timer, Interrupt Controller, and other. This common API may be then used to initialize and control these peripherals in a common way across multiple microcontroller platforms. The framework currently supports Intel and Xilinx microprocessors and SoC's as well as Analog Devices' own precision microcontrollers, several Maxim Integrated MAX32xxx microcontrollers, STMicroelectronics' STM32, Raspberry Pi's Pico, and mbedOS-based devices.
By using this common driver API, following its own coding style, the no-OS is able to provide reference projects for Analog Devices Inc evaluation boards running on various underlying hardware.
Thanks to the no-OS build system, no-OS users may generate standalone reference projects in a short period of time and use them as the starting point for their own development.
no-OS is an open-source software, and its official repository is the no-OS Github Repository. Users are free to use and distribute no-OS, provided that they comply with the license.
The no-OS main drivers used in the firmware are the ones concerned with the MAX32655 microcontroller, the ADE9113 isolated, 3-channel Σ-Δ ADC, and the ADT75 temperature monitoring system.
no-OS support for Maxim microcontrollers
The no-os framework supports several Maxim microcontrollers, including the MAX32655, and implements the low-level functions for controlling the hardware components of the device: GPIO, UART, NVIC, I2C, and SPI. The build guide provides the steps required for creating and building an application based on a supported Maxim microcontroller part.
ADE9113 no-OS driver
The existing no-OS driver for the ADE9113 ADC implements the functionalities provided by the device through a comprehensive high-level API. All the settings of the ADE9113 ADC are accessed through separate functions that perform SPI read and write operations on the corresponding device registers. The driver provides the possibility of reading the acquired data at moments in time specified by the application or depending on the state of the Data Ready pin through an interrupt. Using the device requires populating the initialization parameters structure, calling the ade9113_int API and then reading the i_wav, v1_wav, and v2_wav members of the device structure. Depending on the desired settings, these members are updated through an interrupt triggered by the Data Ready pin or each time a long SPI read operation is performed on one of the device’s registers.
// ADE9113 initialization structure struct ade9113_init_param ade9113_ip = { 0 }; // ADE9113 dev SPI init params ade9113_ip.spi_init = &ade9113_spi_ip; // ADE9113 dev DATA_RDY init params ade9113_ip.gpio_rdy = &ade9113_gpio_rdy_ip; // ADE9113 dev RESET init params ade9113_ip.gpio_reset = &ad9113_gpio_reset_ip; // IRQ deviuce descriptor used to handle interrupt routine for GPIO RDY ade9113_ip.irq_ctrl = ade9113_irq_desc; // ADE9113 device initialization ret = ade9113_init(device, ade9113_ip); // Data updated automatically in the i_wav, v1_wav, and v2_wav members of the device structure
ADT75 no-OS driver
no-OS support for the ADT75 provides an easy and straight-forward way of obtaining temperature readings from the device. Using the device implies the specification of the SPI communication parameters, the call of the adt75_init function for initialization, and the adt75_get_single_temp API for getting the current temperature value.
//ADT75 initialization structure struct adt75_init_param adt75_ip = { .comm_param = i2c_param, }; // ADT75 device initialization ret = adt75_init(&adt75_desc, &adt75_ip); // ADT75 single temperature reading ret = adt75_get_single_temp(adt75_desc, &val);
Resources
Flashing and debugging the firmware for the AD-ACEVSECRDSET-SL using the max32625pico
What is needed:
max32625pico
AD-ACEVSECRDSET-SL.hex
AD-ACEVSECRDSET-SL board
usb to micro usb cable
10 pin Cortex Debug Cable
3 wire cable with mains plug attached
Serial terminal
Obs: The binary can be obtained following the steps presented at no-OS build guide
STEP 1 max32625pico firmware update
Download the MAX32655FTHR Firmware image from here
Follow the procedure indicated at here to load the new firmware.
STEP 2 Connect the max32625pico to the board
Connect the Cortex Debug Cable to the max32625pico with the connector key directed towards the outside of the board and to the AD-ACEVSECRDSET-SL board directed downwards.
Step 3 Connect the board to mains
Connect the NULL, PHASE and Earth as indicated on the enclosure.
Power up the board from 230V AC through the just attached cable.
Step 4 Flashing the firmware to the board
If the max32625pico is not connected to the PC USB port connect it. The DAPLINK should appear as a storage device on the PC.
Open the DAPLINK. Two files should already be present as seen in the following image.
Drag and drop the AD-ACEVSECRDSET-SL.hex into DAPLINK.
The firmware will be written on the target MCU.
Step 5 Verify that the firmware was written correctly.
Open the device manager and go to Ports. Find the COM port allocated to the max32625pico.
Use a serial terminal (e.g. PuTTY) to verify that the firmware was correctly updated.
If using PuTTY under the Terminal menu select the “Implicit CR in every LF”.
From the Window menu modify the “Lines of scrollback” to a higher value (200000) than the default one.
Open PuTTY and under the “Session” menu insert the following data: The COM port indicated in the device manager for the device and the baud rate of 57600.
Hit the Open button and after the terminal window opens reset the AD-ACEVSECRDSET-SL board from the reset button.
The following messages should be displayed in the serial terminal window:
After the self-test passes the status LED 1 will be on.
If you want to go back to the HARDWARE SETUP, click here: AD-ACEVSECRDSET-SL Hardware User Guide
resources/eval/user-guides/ad-acevsecrdset-sl/software.txt · Last modified: 23 Nov 2023 16:24 by Radu Etz