Getting started with I2C project for a bare-bones stm32f030 board with 20-pin TSOP package. Driving an MCP4725 DAC over I2C.
| Pin | Port | Function | Description |
|---|---|---|---|
| 1 | (BOOT0) |
Boot mode selection | Pull low |
| 4 | (NRST) |
Reset | Pull high |
| 5 | (VDDA) |
Analog power | Connect to V+ |
| 15 | (VSS) |
Ground pin | Connect to ground |
| 16 | (VDD) |
Logic power | Connect to V+ |
| 17 | (SCL) |
I2C clock | Connect to DAC SCL |
| 18 | (SDA) |
I2C data | Connect to DAC SDA |
| 19 | (SYS_SWDIO) |
Programming interface | Connect to ST-Link programmer |
| 20 | (SYS_SWCLK) |
Programming interface | Connect to ST-Link programmer |