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STR71XF 数据表(PDF) 11 Page - STMicroelectronics |
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STR71XF 数据表(HTML) 11 Page - STMicroelectronics |
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11 / 27 page ![]() STR710-EVAL 2 Hardware 10/27 Jumpers are fitted as shown in Figure 4. 2.15 Option switch settings Table 4. Option jumpers Jumper Figure Description Default J1 Figure 16 on page 20 CAN link: not fitted / fitted (default) Fitted J3 Figure 12 on page 16 VBKP supply: internal / board (default)) Fitted J4 Figure 19 on page 23 notJRst / notReset link: connected / open (default) Not fitted J5 Figure 12 on page 16 Not fitted. Do not fit Figure 4. Jumper positions Table 5. Option switch settings Switch Schematic Description Default SW1 Figure 16 on page 20 CAN transceiver select: L9669 / L9616 (default) Note SW1 and SW2 must be changed together. 1 = L9669 A = L9616 ON SW2 ON SW3 Figure 11 on page 15 LCD Select PTM SW4 Figure 11 on page 15 LCD Next PTM SW5 Figure 16 on page 20 L9616 ASC speed: 1-2 = pull down = high speed 2-3 = pull up = low speed 2-3 SW6 Figure 17 on page 21 I2C EEPROM write control (notWC): 1-2 = pull down = enable writes to EEPROM 2-3 = pull up = disable writes to EEPROM 2-3 SW7 Figure 17 on page 21 SPI flash notHOLD: 1-2 = pull down = SPI flash in “hold mode” 2-3 = pull up = SPI flash in “normal mode” 2-3 SW8 Figure 17 on page 21 SPI flash notW: 1-2 = pull down = Write protect 2-3 = pull up = Write enabled 2-3 Not fitted Do not fit Fitted |
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