UM1037 datasheet(13/46 Pages) STMICROELECTRONICS

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UM1037

Hardware layout and configuration

Doc ID 18294 Rev 1

13/46

The IO pins used on the Motor control connector CN1 are multiplexed with some of the on-

board peripherals. The motor control application can be enabled by setting the related

jumpers and solder bridges.

Some board reworks are also needed as listed below:

●

Remove 0 ohm resistors R55 to release IO which used by the Motor control and shared

with Bid-LED (if Bidir LED needs to remain OFF when motor is running).

●

Solder resistor 0 ohm resistors R51 and R60.

The LCD glass module has to be mounted in "IO" position for Motor control. Refer to

Section 2.5: LCD glass module on page 10 for details.

2.10

MicroSD card

The 1 GByte (or more) MicroSD card connected to SPI port of STM8L152M8T6 is available

on the board. MicroSD card detection is managed by GPIO port PG6. Jumper JP10 must be

kept closed for MicroSD card operation, refer to Table 9 for details.

The LCD glass module has to be mounted in "IO" position for MicroSD card. Refer to

Section 2.5: LCD glass module on page 10 for details.

2.11

Analog input

The BNC connector CN2 is connected to PF0 of STM8L152M8T6 through solder bridge

SB1 as external analog input or DAC output. The 50 ohm terminal resister can be enabled

by closing solder bridge SB6. A low pass filter can be implemented for the BNC connector

by replacing R8 and C6 for ADC input or replacing R16 and C6 for DAC output with the

resistor and capacitor values appropriate for the target application.

There are also 3 analog signals available on the board:

Table 8.

Motor control related jumpers and solder bridges

Jumper

Description

JP7

JP7 can be used to redirect a PFC synchronization signal to the timer 3

input capture 2 pin, and to the timer3 external trigger input.

Default setting: Not Fitted

JP1

JP1 should be kept open when an encoder signal is input from pin31 of

CN1 while it should be kept closed when an analog signal is input from

pin31 of CN1 for special type of motors.

Default setting: Not Fitted

JP9

For Motor control applications, JP9 neesd to be kept open to avoid conflict

between Microphone and Motor control connector CN1.

SB2

PE5 is connected to MC_CurrentB when SB2 is set to “pad2 connected to

pad3”.

PF1 is connected to MC_CurrentB when SB2 is set to “pad1 connected to

pad2” (Dot mark on silkscreen).

Default setting: pad2 connected to pad3

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