ST EVALSPEAr320HMI, User Manual, Page: 21 / 36

EVALSPEAr320HMI Connector pinouts
Doc ID 18410 Rev 3 21/36
5.9 General purpose ADC connector CN700
Connector CN700 has eight analog input lines available.
In the expansion, ensure the following relationship between the pins:
0V ≤ CN700-1 ≤ CN700-3 – CN700-17 ≤ CN700-19 ≤ +2.5V
GND ≤ ADC_VREFN ≤ AIN0 –AIN7 ≤ ADC_VREFP ≤ +2V5ADC
Table 19. General purpose ADC connector pinout (CN700)
Pin Description Pin Description Pin Description Pin Description
1
ADC VREF negative or
GND using JP8
6 GND 11 AIN4 16 GND
2 GND 7 AIN2 22 GND 17 AIN7
3 AIN0 8 GND 23 AIN5 18 GND
4 GND 9 AIN3 24 GND 19
ADC VREF positive or
+2V5 using JP7
5 AIN1 10 GND 25 AIN6 20 GND
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