Nuvoton programming examples

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Choose the hardware target and then move to the next step. Additional details can be found in the docs repository. Second, flash image via UART. In normal case we suggest user use the first method to update BMC firmware.

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User can follow the firmware update readme to upgrade BMC firmware. See the readme. For more info follow the readme. We use optional third-party analytics cookies to understand how you use GitHub.

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This branch is commits ahead, commits behind openbmc:master. Pull request Compare. Latest commit.The ISP code version is changed to v The ISP code version is updated to v3. Section 2. The application program is updated to v5. In addition, since this tool can save the programming data downloaded from the host, it is able to perform the off-line operation.

This feature is especially useful in the field without a host PC. Please contact Nuvoton for detailed product information. The user may program it by himself using a universal programmer. VCC: Power supply from the target system. In off-line operation, the Programmer is powered by the target system. The following sub-sections will show the connection diagrams for these connection types. Refer to Section 5: Reset Control.

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All frequencies between 2MHz and 40MHz are acceptable. Before starting to use this programmer, the user needs to install the driver in the host if the PL driver has never been installed in this host. The user can also find this driver in the folder [ 1 Driver]. These function buttons will make the buffers synchronized.

It is much helpful to the user to manage a variety of the programming data by a project style. Note: This feature is supported from revision v5. In this mode, both the host and MCU are connected. In this mode, only the host is connected. In this mode, only the MCU is connected. This mode is especially useful in the field without the host. After the ISP Programmer has been downloaded, it can perform the off-line operation. Figure 5a. Figure 5b. This step is only for On-line Mode and may be exchanged with Step1.In the vast system of embedded applications, no microcontroller can perform all the activities by itself.

Each communication protocol has its own advantage and disadvantage. If you are new here, do check out the Nuvoton Tutorials where we have discussed every peripheral of the N76E Microcontroller from the very basic getting started tutorial.

If you want to learn how to use I2C with other microcontrollers, you can check out the links below. However, these two pins require pull-up resistors to the VCC voltage level and with an adequate pull-up resistor, the bus could support devices with a unique address. I2C is a synchronous communication protocol meaning, both the devices that are sharing the information must share a common clock signal.

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It has only two wires to share information out of which one is used for the clock signal and the other is used for sending and receiving data. I2C communication was first introduced by Phillips. As said earlier, it has two wires, these two wires will be connected across two devices.

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The advantage of I2C communication is that more than one slave can be connected to a Master. At any given time, only the master will be able to initiate the communication. Since there is more than one slave in the bus, the master has to refer to each slave using a different address.

When addressed only the salve with that particular address will reply back with the information while the others keep quiet. This way, we can use the same bus to communicate with multiple devices. It is certainly reliable to an extent since it has a synchronized clock pulse to make it smart.

This protocol is mainly used to communicate with the sensor or other devices which has to send information to a master.

nuvoton programming examples

It is very handy when a microcontroller has to communicate with many other slave modules using a minimum of only wires. If you are looking for long-range communication, you should try RS and if you are looking for more reliable communication, you should try the SPI protocol. Other than the above, we also require the following components. Not to mention, other than the above components, we need an N76E microcontroller based development board as well as the Nu-Link Programmer. Additionally, breadboard and hookup wires are also required for connecting all components.

On the extreme left, the programming interface connection is shown. My hardware setup along with the nu-ink programmer is shown below. As we can see, each pin has different specifications and each pin can be used for multiple purposes. However, pin 1. But that is not a problem as another functionality is not required for this project. The same thing will happen for the P1. All GPIO pins can be configured in the below-described mode.

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As per the datasheet, PxM1. The I2C peripheral is an important thing for any microcontroller unit that supports I2C features.

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Many types of different microcontrollers come with an in-built I2C peripheral. However, in some cases, I2C can be configured manually using software control where I2C related hardware support is not available For example, many microcontrollers.But when we differentiate those microcontrollers with form factor vs features vs price, it gets hectic to choose one. However, nuvoton is a Taiwan based semiconductor company that was spun-off as a Winbond affiliate in The company offers very useful microcontrollers, mixed-signal chips, microprocessors with extremely high specification.

But the most important thing is that it provides all features at a very low-cost margin. Thus, during the development of the production phase, the nuvoton micro-controller is getting an upper edge due to the low price and high feature supports. Now you should be wondering what is the price? It's less than 0. In this series of tutorials, we will learn how to program the N76E microcontroller unit, more specifically the N76Eat20 microcontroller. Since it is a very cheaper one and has a wide range of features, you can find this microcontroller interesting if you are a beginner, or doing hobby projects or a professional one.

In this specific tutorial, we will learn how to set-up the N76E programming environment as well as how to write the first hello world program of the embedded - blinking an LED. Since the microcontroller is finalized with Nuvoton N76Eat20it's time to find out the proper hardware and software that is required for programming the microcontroller.

Let's start to find out how to create the programming environment of the N76E But since this board is hard to find in India, and it does cost high, a standard bare minimum development board is available online. The image of the N76E Development board that we will use in this tutorial is shown below. The board is just a simple development board with all pinouts from the microcontroller unit.

In the below image, the internal circuit diagram for the development board is shown. As we can see in the schematic, the development board doesn't have any kind of voltage regulator be it linear or LDO. However, it has a filter capacitor at the input. It also has a power LED and a reset button to reset the microcontroller unit. There is also a test LED available that can be configured using the code.

Other than this, external crystal and required capacitors pad are also available without the components that can be very useful during further development where the external oscillator is required. For programming this microcontroller, we are using an unofficial Nu-link programmer which is a low cost alternative available in the online stores.

However, for those who are willing to use the official Nu-link programmerit is available for purchase as the Nu-Tiny SDK development board. The programmer that we will use in our tutorial is shown above.

Getting the proper IDE and compiler is an important thing for any microcontroller programming. For the industry-leading microcontroller manufacturers, such as a microchip, nordic, STMicroelectronics - they all provide free c compiler and IDE.

nuvoton programming examples

But for nuvoton programming, this is the one thing that lags. Since it is an based microcontrollerit can be programmed using Keil u vision with C51 compiler, or IAR Embedded workbench. But there is a catch.A microcontroller needs to receive data, process it, and send it to the other devices. There are different types of communication protocols available in the microcontroller, however, UART is the most used one among the other communication protocols like SPI and I2C.

If someone needs to receive or transmit data serially, UART is always the simplest and common option. The advantage of UART is it only requires two wires to transmit data between devices.

Continuing with our Nuvoton Microcontroller Tutorialin this article, we will learn how to perform serial communication using the N76E microcontroller.

Two UART devices receive and transmit data at the same frequency. When the receiving UART device detects a start bit, it starts to read the incoming bits at a specific frequency known as the baud rate.

Baud rate is an important thing for UART communication and it is used to measure the speed of data transfer in bits per second bps.

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This baud rate speed, for the transmit and receive, must be at the same baud rate. Most popular baud rate speeds are, bps, etc. Previously we have used UART communication in many other microcontrollers as well that are listed below. Without wasting much time, let's evaluate what kind of hardware setup we require for this application.

Not to mention, other than the above component, we need the N76E microcontroller based development board as well as the Nu-Link Programmer. An additional 5V power supply unit may be required if the programmer is not used as a power source. As we can see in the below development board schematic, the 2nd and 3rd pin of the microcontroller unit is used as a UART0 Tx and Rx respectively. On the extreme left, the programming interface connection is shown. Thus the first step is to select the desired UART port for operations.

UART1 will have the same configuration but the registers will be different. As this is a serial port receive pin, the Port 0.

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On the other hand, the Port 0. It needs to be set as a Quasi bidirectional mode. These can be selected using the PxM1 and PxM2 register.

The configuration can be seen in the below image. Then, the next step is to determine the mode of UART operations. The two UARTs could operate in 4 modes. The modes are. Mode 0 is the synchronous operation and the other three modes are asynchronous operations.

However, the Baud Rate generator and the Frame bits are different for each serial port mode. Anyone of the modes can be selected as per application requirement and this is the same for the UART1 also.Arm provides software developers working with Nuvoton devices based on the Arm Cortex-M0 and M23 processors with a free-to-use professional tool suite for commercial use.

nuvoton programming examples

To activate one of the editions, you need a valid product serial number PSN. You will receive a PSN that you can use in the activation step. All rights reserved. This site uses cookies to store information on your computer. By continuing to use our site, you consent to our cookies. Change Settings. Please review our Privacy Policy to learn more about our collection, use and transfers of your data.

Download MDK Core. Activate the product. Use example projects to get started quickly. Check the FAQ page for more information. Run the downloaded MDK5xx. If you have existing MDK installations that you want to keep, select a new folder. In Pack Installer, click Install to download and install the device family packs supplied by Nuvoton. MDK is now ready to use. Activation Login with an account that has administration rights. Open the dialog File — License Management This action opens the License Management page on the Keil web site.

For the extended edition, enter the PSN that you have received via email after purchase. Also, add your contact information and click the button Submit. Click Add LIC. Switch to the Examples tab. From the list of available example select the example you want to install. The Devices tab allows to filter for specific devices or device series. When pressing Copya dialog box will ask for the desired destination. The example will be directly installed into this folder.Analog to Digital converter ADC is the most used hardware feature on a microcontroller.

It takes in analog voltage and converts it to a digital value. Since microcontrollers are digital devices and work with the binary digit 1 and 0, it could not process the analog data directly. Thus, an ADC is used to take in analog voltage and convert it into its equivalent digital value that a microcontroller can understand.

Thus, using Analog to Digital converterthose sensors can be interfaced with a microcontroller unit. You can also check out other tutorials listed below, for using ADC with other microcontrollers. In this tutorial, we will use the inbuilt ADC peripheral of the N76E microcontroller unit so let's evaluate what kind of hardware setup we require for this application.

Thus, the major component that is required for this project is 16x2 Character LCD. For this project, we will use the below components. Not to mention, other than the above components, we need the N76E microcontroller -based development board as well as the Nu-Link Programmer. An additional 5V power supply unit is also required as the LCD draws sufficient current that the programmer could not provide.

As we can see in the schematic, the port P0 is used for the LCD related connection. On the extreme left, the programming interface connection is shown. The potentiometer acts as a voltage divider and that is sensed by the analog input 0 AN0. The Analog pins are highlighted in RED colors.

nuvoton programming examples

Thus, P3. As this project requires only one analog pin, P1. The ADC has 8-Channel inputs in single-end mode. Interfacing the ADC is pretty simple and straightforward. The first step is to select the ADC channel input. There are 8-Channel inputs available in N76E microcontrollers.

All the pins used for the Analog input are input pins of the microcontroller thus all the pins need to be set as Input-only high-impedance mode.


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