STEVAL-IDI004V2 Schematic diagrams 3V3 C11 C12 C13 C14 C15 100nF 0402 J13 3V3 U4 VDD_3 VSS_3 PB9 PB8 BOOT0 PB7 PB6 PB5 PB4 PB3 PD2 PC12 PC11 PC10 PA15 PA14 100nF 0402 100nF 0402 100nF 0402 100nF 0402 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 C10 4.7uF/10V GSPG170915 1155SG PB8_SW_CNTRL BOOT0 PB7_I2C_SDA PB6_I2C_CLK PB5_SPI3_MOSI PB4_SPI3_MISO PB3_SPI3_SCK PD2_BT_BOOTLOADER PC12_BT_RESET PC11_UART4_RX PC10_UART4_TX PA15_SPI3_NSS SYS_JTCK_SWCLK 3V3 Microcontroller section R9 1 BOOT0 2 3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PC13_SPW_SWDIO PC14_SPW_SWCLK PC15_SPW_BOOT0 SYS_OSC_IN_PD0 SYS_OSC_OUT_PD1 NRST 10K Shor t 2 and 3 t o boot f r om f l ash DNM, SWD C18 20pF PC1_WAKEUP PC2_WF_RESET SYS_OSC_IN_PD0 3V3 PA0_USART2_CTS PA1_USART2_RTS PA2_USART2_TX Y1 8MHz R10 SYS_OSC_OUT_PD1 VDD_2 VSS_2 PA13 PA12 PA11 PA10 PA9 PA8 PC9 PC8 PC7 PC6 PB15 PB14 PB13 PB12 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 3V3 SYS_JTMS_SWDIO_PA13 PA12_USB_DP PA11_USB_DM PA10_USART1_RX PA9_USART1_TX PA8_WKUP_SP1MOD D8 R30 1K PC7_MODE1_SP1MOD TEST_LED2 PC6_GPIO0_SP1MOD PB15_MODE0_SP1MOD PB14_UART3_RTS PB13_UART3_CTS PB12_USB_PU PA3 VSS_4 VDD_4 PA4 PA5 PA6 PA7 PC4 PC5 PB0 PB1 PB2 PB10 PB11 VSS_1 VDD_1 C19 20pF VBAT PC13_ANTI_TAMP PC14_OSC32_IN PC15_OSC32_OUT PD0_OSC_IN PD1_OSC_OUT nRST PC0 PC1 PC2 PC3 VSSA VDDA PA0_WKUP PA1 PA2 390 PA3_USART2_RX NRST PUSH BUTTON C25 100nF 0402 R11 10K 3V3 3V3 PA4_GPIO6_WIFI 17 18 19 20 21 PA6_GPIO1_SP1MOD 22 PA7_NRESET_SP1MOD 23 PC4_BOOTMODE_SP1MOD 24 PC5_LED_ERROR 25 26 27 28 PB10_UART3_TX 29 PB11_UART3_RX 30 31 3V3 32 SW1 Configure as OUT_OD pins, PA7_NRESET_SP1MOD, PC12_BT_RESET and PC2_WF_RESET STM32F103RET6 NFC section 13 VPS _MAIN 21 ST_R1 31 C47 43pF 50V RX1 TX1 R17 19 20 DN M, 3.3K 1% PB4_SPI3_MISO PB5_SP I3_ MOSI PB3_SPI3_SCK PA15_ SPI3_NSS 16 17 18 15 PC11_ UART4_ RX PC10_ UART4_TX 14 12 NC NC NC NC NC NC NC NC NC NC NC UART_TX/IRQ_O UT UART_RX/IRQ_IN 2 6 L14 560 nH C42 120 pF 0402 50V C44 DN M C48 43pF 50V C43 C45 120 pF DN M 0402 50V C52 C53 82pF 50V DN M 50V R21 1K8 L13 1.1µH 13 .56 MHz , PCB Antenna C51 DN M R22 300 R GND GND 3 4 7 10 11 23 24 25 26 27 28 3V3 3V3 L15 FERR ITE BEA D 33 8 30 22 XOUT GND _RX R20 3.3K 1% VPS _MAIN 5 1 L12 560 nH CR 95 HF XIN R23 3.3K 1% TX2 RX2 29 R19 10K SSI_0 SSI_1 SPI_MISO SP I_MOSI SPI_SCK SPI_SS GSPG1709151400SG C46 DN M GND _TX ST_R0 R18 3.3K 1% 32 VPS _TX 9 U6 VP S R16 3.3K 1% VPS _MAIN R3 300 R VPS _TX C41 1nF 50V VPS _MAIN L16 FERR ITE BEA D VPS _TX Y3 2 1 C49 10 pF 50V 3 27.12 MHz C50 10pF 50V C54 100 nF 50V C55 100 nF 50V C56 10µF 080 5 C57 100 nF 50V C58 100 nF 50V C59 10µF 080 5 CR95HF BT section Either Mount J4 and J5 or J6 and 7J U2 1K CONN_STATUS 1 2 3 4 5 6 7 PC1_WAKEUP D7 ACT_STATUS 16 15 R28 R29 1K PB7_I2C_SDA PB6_I2C_CLK 3V3 GPIO8 LPO D6 GPIO1 GPIO2 GPIO3 GPIO4 GPIO5 GPIO6 GND TX RX RTS CTS RESET BOOT VIN PA10_USART1_RX PA9_USART1_TX 14 13 12 11 10 9 8 R4 4K7 STBT2632 C6 PD2_BT_BOOTLOADER PC12_BT_RESET 3V3 SW3 C7 100nF 0402 C5 100nF 0402 DNM STBT2632 10uF 0805 GSPG1709151430SG Wi-Fi section J12 TDO_SCK3 TCK TRST_MISO3 TDI TMS Ground Paddle 3.3 V Ground GPIO6_ADC0 GPIO15_DAC GPIO5_TXD3 GPIO2_SPICS GPIO4_RXD3 GPIO1_MOS1 GPIO0_MISO GPIO13 GPIO14 GPIO7_ADC1 GPIO12_SDA GPIO11_SCL RTS1_DP CTS1_DN RXD1 GPIO9_ADC3 TXD1 GPIO10 GPIO8_ADC2 RESETn BOOT0 GPIO3_SCLK 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 3V3 PC13_SPW_SWDIO PC14_SPW_SWCLK PC2_WF_RESET PC14_SPW_SWCLK 1 2 3 4 5 PC13_SPW_SWDIO Note : Add plenty of ground vias DNM, SWD 3V3 Optional - Mount only fo r firmware upgrade with SW D PA4_GPIO6_WIFI C37 C38 100nF 0402 10µF 0805 LED_DRIVE WiFi Link R12 1K LED_DRIVE WiFi_PowerUP PA0_USART2_CTS PA1_USART2_RTS PA2_USART2_TX R13 1K GPIO10LED_DRIVE Running PA3_USART2_RX R14 1K R15 4K7 D1 LINK D2 PUP D3 RUN PC2_WF_RESET PC15_SPW_BOOT0 SW4 U7 C39 100nF 0402 DNM SPWF01SA.11 GSPG1709151520SG Sub GHz section R25 3V3 1K 3V3 D5 U5 1 PA8_WKUP_SP1MOD 2 PC6_GPIO0_SP1MOD TEST_LED2 PA6_GPIO1_SP1MOD 3 4 PB15_MODE0_SP1MOD 5 PC7_MODE1_SP1MOD6 7 8 TXRXLED CTS WKUP RTS GPIO0 RXD GPIO1 TXD MODE0 RESET MODE1 BOOTMODE VDD SWCLK GND SWDIO C34 C35 10µF 0805 C36 100nF 0402 100pF 0402 PB14_UART3_RTS PB13_UART3_CTS PB10_UART3_TX PB11_UART3_RX PA7_NRESET_SP1MOD PC4_BOOTMODE_SP1MOD SP1MOD_SWCLK SP1MOD_SWDIO 16 15 14 13 12 11 10 9 J11 3V3 SP1MOD_SWDIO SP1MOD_SWCLK PA7_NRESET_SP1MOD SP1MOD 1 2 3 4 5 DNM, SWD R27 PC4_BOOTMODE_SP1MOD Optional - Mount only fo r firmware upgrade with SW D DNM, 10K SW2 PA7_NRESET_SP1MOD DNM R26 C26 4K7 100nF 0402 SP1ML-868 3V3 GSPG1709151540SG Power supply section U8 LD1117ADT33TR F1 J3 3 1 2 3 C60 100nF C61 10µF 0805 1 D9 3V3 GND 0ZCJ0100FF2E 3V3 2 VOUT VIN POWER JACK SMAJ5.0 Power Supply R24 160 E 3 3V3 PC5_LED_ERROR D4 2 1 R33 160 E LED BI-COLOUR GSPG1709151550SG NFC transceiver section (1 of 2) TP2 TP1 1 1 J1 TEST POINT TP4 TP3 1 1 TEST POINT 3V3 SYS_JTMS_SW DIO_PA13 SYS_JTCK_SW CLK NR ST 1 2 3 4 5 TEST POINT TEST POINT MOUNTING HOLES SWD CONNECTOR GSPG1709151600SG NFC transceiver section (2 of 2) 3V3 J8 3V3 R31 4K7 R32 4K7 PA10_ USART1_RX PA9_USART1_TX PA0_USART2_CTS PA1_USART2_RTS PA2_USART2_TX PA3_USART2_RX J10 1 2 3 4 5 PB6_I2C_CLK PB7_I2C_SDA PB8_SW _CN TRL 3V3 J9 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 CON10 PB10_ UART3_TX PB11_ UART3_RX PB14_ UART3_RTS PB13_ UART3_CTS PB5_SPI3_MOSI PB4_SPI3_MISO PB3_SPI3_SCK PC12_ BT_RESE T PC11_ UART4_RX PC10_ UART4_TX CON10 DBG CONNECTOR I2C CONNECTOR GSPG1709151620SG USB section + C2 4.7µF/10V C3 4.7nF USB5V 3 I/O1 2 GND J2 6 7 C9 4.7nF SHELL SHELL USB_VCC USBDM USBDP ID USB_GND 1 2 3 4 5 USB5V USB_DM USB_DP 1 I/O2 R5 22 VBUS U3 USB_DM 5 USB5V PA11_USB_DM I/O1 4 USB_DM I/O2 6 USB_DP R6 PA12_USB_DP 22 USBLC6-2P6 R8 1.5k R7 1M C4 15pF C8 15pF PB12_USB_PU USB GSPG1709151630SG