Timer Settings for CodeWizardAVR.ħ Completing the Project By selecting the FileGenerate, Save and Exit menu option, the CodeWizardAVR will generate a skeleton C program with, in this case, Port B and Timer1 Overflow Interrupt set up correctly.
#Tutorial codevisionavr update#
To be able to update the LEDs twice per second, we need to reinitialize the Timer1 value to 0x10000-(3594/2) = 0xF8FB on every overflow.įigure 6-1. The timer is set to operate in the default Normal Top=FFFFh mode and to generate interrupts on overflow. We have selected a clock rate of 3.594 kHz, which is the system clock of 3.68 MHz divided by 1024. Port Settings for CodeWizardAVR.Ħ Configuring Timer1 Select the Timers tab to set up the behaviour of the timers.įor this project, we want to configure Timer1 to generate overflow interrupts as shown in Figure 6-1. The resulting settings window is shown in Figure 5-1.įigure 5-1. We also set the Output Values to be all 1s, which will cause the LEDs on the STK500 to initially be turned off. This is done by setting all the Data Direction bits to Out (by clicking on them). However, for this example project, we want to set Port B (by selecting the Port B tab) to be output only. The default setting is to have the ports for all the target systems set as inputs (Data Direction bits to be all 1s) in their Tri-state mode. Chip Settings for CodeWizardAVR.ĥ Configuring the Input/Output Ports Select the Ports tab to determine how the I/O ports are to be initialized for the target system. The resulting settings window is shown in Figure 4-1.įigure 4-1.
![tutorial codevisionavr tutorial codevisionavr](https://4.bp.blogspot.com/-zkgIv_FdwnE/UpUmGQlXfxI/AAAAAAAAAlk/iFRPZSDNbCA/s1600/14.+namafile+dot+cwp.jpg)
#Tutorial codevisionavr generator#
Press Yes to use the CodeWizardAVR Automatic Program Generator, and the dialog window shown in Figure 4-1 will open.Ĥ Using the CodeWizardAVR Automatic Program Generator The CodeWizardAVR simplifies the task of writing start-up code for different AVR microcontrollers.Ĥ.1 Configuring the Chip and Clock Settings For this example project, we shall use the ATmega8515 microcontroller and the clock rate 3.68 MHz, since that is the clock rate on the STK500 starter kit. Select Project, press OK, and the dialog window shown in Figure 3-2 will be displayed. The dialog window shown in Figure 3-1 will be displayed. Select C:\Program Files\Atmel\AVRTools\AVR Studio4\AvrStudio.exe using the button, then press the OK button to confirm.ģ Creating a New Project In order to create a new project, select the FileNew menu option or press the toolbar button. The dialog window as shown in Figure 2-2 will open. To do this, select the SettingsDebugger menu option. In order to be able to invoke the AVR Studio debugger from within the CodeVisionAVR IDE, the location of AVR Studio must be set. Set the AVR Chip Programmer Type to Atmel STK500/AVRISP, and the Communication Port to the one used with the STK500 starter kit on your system.
![tutorial codevisionavr tutorial codevisionavr](https://i.ytimg.com/vi/eDRcNY7XM4g/hqdefault.jpg)
The dialog window shown in Figure 2-1 will open. To configure the programmer, start the CodeVisionAVR IDE and select the SettingsProgrammer menu option. This will allow the CodeVisionAVR IDE to automatically program the AVR chip after a successful compilation, if the programmer is correctly configured.
![tutorial codevisionavr tutorial codevisionavr](https://2.bp.blogspot.com/-3IDg7ekSbL4/UpUmF9QfLHI/AAAAAAAAAlQ/qcOTzit-n0s/s1600/12.+namafile+dot+c.jpg)
Then connect one 6-pin ribbon cable between the ISP6PIN and SPROG3 headers. Also, set the OSCSEL jumper between pins 1 and 2.Ĭonnect one 10-pin ribbon cable between the PORTB and LEDs headers to allow for the state of ATmega8515s PORTB outputs to be displayed. Set the VTARGET, RESET, and XTAL1 jumpers. Make sure that the power is off before inserting the ATmega8515 chip into the appropriate socket (marked SCKT3000D3). Set up the starter kit according to the instructions in the STK500 User Guide.
#Tutorial codevisionavr install#
().Ģ Preparation Install the CodeVisionAVR C Compiler in the default directory (C:\cvavr), and the Atmel AVR Studio debugger in the default directory (C:\Program Files\Atmel\AVRTools\AVR Studio4). Questions regarding CodeVisionAVR C Compiler should be addressed to HP InfoTech S.R.L. The example, which is the subject of this application note, is a simple program for the Atmel ATmega8515 microcontroller on the STK500 starter kit. Kit and AVR Studio Debugger Creating a New Project Using the CodeWizardAVR Automatic Program Generator Editing and Compiling the C Code Loading the Executable Code into the Target Microcontroller on the STK500 Starterġ Introduction The purpose of this application note is to guide the user through the preparation of an example C program using the CodeVisionAVR C Compiler.
![tutorial codevisionavr tutorial codevisionavr](http://fasrceo814.weebly.com/uploads/1/2/5/5/125541008/689635091.png)
AVR033: Getting Started with the CodeVisionAVR C Compilerįeatures Installing and Configuring CodeVisionAVR to Work with the Atmel STK500 Starter