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Hardware UM0193
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1.5 I²C interface
A 10-pin connector (J28) provides the Inter-Integrated Circuit (I²C) through the I2C0 channel
of the STR730F microcontroller as shown in
Figure 8 .
Connector J28 also provides additional general purpose signals (GP0, GP1 and GP2).
Figure 8. I²C connector pinout
1.6 JTAG interface
A 20-pin connector (J7) provides the JTAG interface as shown in Figure 9 .
This interface is primarily used for communicating with a PC using suitable converter box
such as J-Link from IAR Systems or R-Link from Raisonance, etc. There exists a wide
choice of development tools on the market supporting microcontroller Flash memory
programming and application debugging.
Figure 9. JTAG connector pinout
Table 6. I²C Connections
J28 Pin Signal STR730F MCU Peripheral
1 GND
2 +5V DC
3 SDA (Serial Data) Port 2.15 I2C0
4 Not connected
5 SCL (Serial Clock) Port 2.14 I2C0
6 Not connected
7 GP0 Port 3.2 GPIO
8 GP1 Port 3.1 GPIO
9 GP2 Port 3.0 GPIO
10 Not connected
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10 12 14
11 13 15
16 18 20
17 19