Specifications

21
AVR064
2529A–AVR–11/02
Terminal All temperature and time information is transmitted through the UART-interface. A pro-
gram on a PC can receive this data by connecting a serial cable between the “RS-232
SPARE” on the STK500 and a comport on the PC. A standard terminal can be used,
e.g, HyperTerminal. Set up the terminal as shown in Figure 18.
Figure 18. Port Settings
Press the connect button and the data from the ATmega169 should appear as in Figure
19. The data is presented according to Table 1.
Table 3. Transmit Packet from ATmega169 according to Figure 19
Preamble STK502
Hour 15
Minute 14
Second 23
Day 04
Month 11
Yearhigh 20
Yearlow 02
Set point 25
°C high byte 20
°Clow byte 23
Offset 04
Versions number 01