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--- en:hardware:avr-can:programming_the_can_board [2010/12/30 14:21] – allan.pettai
+++ en:hardware:avr-can:programming_the_can_board [2020/07/20 12:00] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
+======Programming the CAN Board======
+The CAN board that will be connected to the PC needs to be programmed with
+the provided USB_CAN.hex program. The program establishes a USB connec-
+tion through the emulation of a virtual COM port.  Open AVR Studio without
+opening an existing or new project.  Choose Tools’Program AVR’Connect and
+select the programming adapter (e.g. AVRISP mkII) and the interface (e.g., USB).
+{{  :en:hardware:arm-can:avr-studio_2.jpg?500  |Figure 1.7: AVR-Studio}}
+Figure 1.7: AVR-Studio
+Under Main choose Atmega32 and click on the button Read Signature.  If the
+chip was recognized by AVR Studio, the text Signature matches selected device appears. Programming Mode is ISP mode, ISP frequency 125.0 kHz.
+{{  :en:hardware:arm-can:insthex1.jpg  |Figure 1.8: ISP Mode}}
+Figure 1.8: ISP Mode
+Under Fuses, tick the boxes for JTAGEN and SPIEN to enable JTAG and SPI
+programming, respectively. Choose Ext. Crystal/Resonator High Frequency.
+<code c>
+KCK + 64ms
+</code>
+Code (1.1)
+If the fuse bits are set according to the screenshot, the HIGH and LOW bytes
+should read 0x99 and 0xFF, respectively.  Click the button Program to set the fuse bits on the Atmega32.  You can check the fuse bits by clicking the button
+Verify.
+{{  :en:hardware:arm-can:insthex3.jpg  |Figure 1.9: Fuse Bits}}
+Figure 1.9: Fuse Bits
+Under Program, tick the boxes Erase divide before ﬂash programming and Ver-
+ify device after programing. Select the USB_CAN.hex as input hex ﬁle for ﬂash
+programming
+{{  :en:hardware:arm-can:insthex2.jpg  |Figure 1.10: Programming}}
+Figure 1.10: Programming