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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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UM1871 датащи(PDF) 20 Page - STMicroelectronics |
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UM1871 датащи(HTML) 20 Page - STMicroelectronics |
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20 / 64 page  Hardware layout and configuration UM1871 20/64 DocID027604 Rev 3 2.10 MicroSD card The 4GB (or more) microSD card is connected to SDIO interface of STM32F446ZET6. MicroSD card detection is managed by MFX_IO15, configured with internal pull-up. The following solder bridges are closed to support microSD card by default: SB26, SB27, SB28, SB29, SB30, SB47. 2.11 Potentiometer A 10 KΩ potentiometer P2 is connected to PA4 of the STM32F446ZET6 on the board. The following solder bridges must be closed to connect potentiometer to PA4: SB91, SB92, SB94, SB103. The potentiometer is not connected by default to PA4, since SB94, that is marked in red in Figure 5, is opened to support camera interface by default. A low pass filter can be implemented, by replacing SB92 and C86 with the right value of resistor and capacitor, as requested by the end user’s application. Figure 5. Solder bridge to be added on bottom side for motor control JP6 RS232_TX input of RS232 transceiver is connected to PA9 (USART1_TX in conjunction with JP7) when JP6 is set as shown below (default setting): RS232_TX from ST-LINK is connected to PA9 (USART1_TX in conjunction with JP7) to support virtual com port when JP6 is set as shown below: Table 8. RS232 and IrDA related jumpers (continued) Jumper Description |
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