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STD STM32 dual processor board

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Update time: 2022-03-22 14:43:04
Creation time: 2021-11-14 10:16:02
Description

In this project, an STM32H7xx board is designed with two processors interfaced on SPI bus. Additional, GPRS module and SD card reader module are added as onboard peripherals. Multitudes of Digital and analog pins are left unused to allow many other connections the user would wish to.

Design Drawing
schematic diagram
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ID Name Designator Footprint Quantity
1 16MHz 1MHZ,16MHZ CRYSTAL-SMD_L11.4-W4.8-LS12.7 2
2 32.768KHz 32.1KHZ,32.768KHZ CRYSTAL-SMD_L11.4-W4.8-LS12.7 2
3 0.1u C51,C52 C0603 2
4 10pF CAP1,CAP2,CAP3,CAP4,CAP5,CAP6,CAP7,CAP8 C0603 8
5 2.2uF CAP9,CAP10,CAP11,CAP12 C0603 4
6 1uF CAP13 C0603 1
7 POWER-JACK DC-PWR DC-IN-TH_POWER-JACK 1
8 PZ254V-11-07P I2C_D1 HDR-TH_7P-P2.54-V-M 1
9 STM32F405RGT6V MASTER,SLAVE LQFP-64_L10.0-W10.0-P0.50-LS12.0-BL 2
10 PZ254V-11-06P PROG1,PROG2 HDR-TH_6P-P2.54-V-M 2
11 10k R17,R13,R19,R21 R0603 4
12 TLV70233PDBVR REGLTR SOT-23-5_L3.0-W1.7-P0.95-LS2.8-BL 1
13 K2-3.6×6.1_SMD RST,RST1 KEY-SMD_2P-L6.2-W3.6-LS8.0 2
14 473521001 SD SD-SMD_SD-47352-101 1
15 SK-12D02-VG5 SW SW-TH_SK-12D02-VG5 1
16 U.FL-R-SMT(10) ANT ANT-SMD_UFL-R-SMT 1
17 470uF C42,C47 CASE-D_7343 2
18 220nF C48 C0603 1
19 100nF C49,C50 C0603 2
20 SMF05C.TCT D4 SC-70-6_L2.2-W1.3-P0.65-LS2.1-BR 1
21 LED-TH-3mm_R LED1 LED-TH_BD3.0_RED 1
22 BC817-40-F2-0000HF Q5,Q6 SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR 2
23 15ohm R14,R15 R0603 2
24 R16 5ohm 1
25 4.7k R20,R22 R0603 2
26 330ohm R23 R0603 1
27 HYC75-SIM06-135 SIM SIM-SMD_HYC75-SIM06-135 1
28 SIM900 U9 SIM900 1

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