OI!STER: Difference between revisions

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| FDCAN_RX
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| Receive Data
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| FDCAN_TX
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Revision as of 09:22, 2 September 2021

The OI!STER is an STM32L5 Target Board with a QFP48 clamshell socket aimed at debugging and glitching salvaged MCUs. The board can be powered via USB-C, a 2032 coin cell battery on the back of the board or an external power suppy. All pins are broken out in the 24-pin headers on either side at the top of the board. The OI!STER contains five debug headers, to support a wide range of debugging hardware such as a Hydrabus or a Black Magic Probe. It comes with six SMA connectors arranged in I/O pairs. One pair is dedicated to glitching the external LSE clock, another for glitching the external HSE clock and one pair for power analysis and fault injection with a Chipwhisperer. Each SMA connector can be bypassed by removing a small jumper. The OI!STER also has additional solder jumpers for the external clocks and each of the power traces to the MCU to allow for quick experimentation.

The Pinout diagrams below are directed at reverse engineering. The first diagram is targeted at debugging and reverse engineering an STM32L5 MCU itself. The second diagram is aimed at the communication between external peripherals and the MCU. Although some functionaly might overlap, we've found it practical to define these two pinout groups. Additional documentation is currently under development.



OISTER-DIAG-30.png
OISTER-30.png
OISTER-PCB-30.png



Debug Pinout Diagram

USB/UART/LPUART/USART/JTAG/SWD/OSC/OSC32 Pinout
OISTER Pinout DBG-50.png

Debug Pinout Table

Pin Function Alternate Function
1 VBAT
2 PC13
3 PC14 OSC32_IN
4 PC15 OSC32_OUT
5 PH0 OSC_IN
6 PH1 OSC_OUT
7 NRST
8 VSSA VREF-
9 VDDA VREF+
10 PA0 UART4_TX USART2_CTS USART2_NSS
11 PA1 UART4_RX USART2_RTS USART2_DE
12 PA2 LPUART1_TX USART2_TX UCPD1_FRSTX1
13 PA3 LPUART1_RX USART2_RX
14 PA4 USART2_CK
15 PA5
16 PA6 LPUART1_CTS USART3_CTS USART3_NSS
17 PA7
18 PB0 LED1 USART3_CK
19 PB1 LED2 LPUART1_RTS USART3_RTS USART3_DE
20 PB2 UCPD1_FRSTX2
21 PB10 USART3_TX
22 PB11 USART3_RX
23 VSS
24 VDD
25 PB12 USART3_CK
26 PB13 USART3_CTS
27 PB14 USART3_RTS UCPD1_DB2
28 PB15 UCPD1_CC2
29 PA8 USART1_CK
30 PA9 USART1_TX
31 PA10 USART1_RX
32 PA11 USART1_CTS USART1_NSS USB_DM
33 PA12 USART1_RTS USART1_DE USB_DP
34 PA13 JTMS SWDIO USB_NOE
35 VSS_2
36 VDD_2
37 PA14 JTCK SWCLK
38 PA15 JTDI USART2_RX USART3_RTS UART4_RTS UCPD1_CC1
39 PB3 JTDO TRACESWO
40 PB4 NJTRST
41 PB5 UCPD1_DB1
42 PB6
43 PB7 UART4_CTS
44 PH3 BOOT0
45 PB8
46 PB9
47 VSS_3
48 VDD_3

Protocol Pinout Reference

USB

Pin Function Description
32 USB_DM Data -
33 USB_DP Data +
34 USB_NOE Output Enable

UCPD1

Pin Function Description
12 UCPD1_FRSTX1 Fast Role Swap Signal
20 UCPD1_FRSTX2 Fast Role Swap Signal
27 UCPD1_DB2 Dead-Battery Signal
28 UCPD1_CC2 Configuration Control Line
38 UCPD1_CC1 Configuration Control Line
41 UCPD1_DB1 Dead-Battery Signal

UART4

Pin Function Description
10 UART4_TX Transmit Data
11 UART4_RX Receive Data
38 UART4_RTS Request To Send
43 UART4_CTS Clear To Send

LPUART1

Pin Function Description
12 LPUART1_TX Transmit Data
13 LPUART1_RX Receive Data
16 LPUART1_CTS Clear To Send
19 LPUART1_RTS Request To Send

USART1

Pin Function Description
29 USART1_CK Transmitter Clock
30 USART1_TX Transmit Data
31 USART1_RX Receive Data
32 USART1_CTS Clear To Send
33 USART1_RTS Request To Send

USART2

Pin Function Description
10 USART2_CTS Clear To Send
11 USART2_RTS Request To Send
12 USART2_TX Transmit Data
13 USART2_RX Receive Data
14 USART2_CK Transmitter Clock

USART3

Pin Function Description
16 USART3_CTS Clear To Send
18 USART3_CK Transmitter Clock
19 USART3_RTS Request To Send
21 USART3_TX Transmit Data
22 USART3_RX Request Data

JTAG

Pin Function Description
34 JTMS Test Mode State
37 JTCK Test Clock
38 JTDI Test Data In
39 JTDO Test Data Out
40 NJTRST Reset

SWD

Pin Function Description
7 NRST Reset
34 SWDIO Data I/O
37 SWCLK Clock
39 TRACESWO Trace Output

OSC

Pin Function Description
5 OSC_IN High Speed External Clock In (HSEI)
6 OSC_OUT High Speed External Clock Out (HSEO)

OSC32

Pin Function Description
3 OSC32_IN Low Speed External Clock In (LSEI)
4 OSC32_OUT Low Speed External Clock Out (LSEO)

Peripheral Pinout Diagram

I2C/SPI/OCTOSPI/FDCAN Pinout
OISTER Peripheral Pinout.png

Peripheral Pinout Table

Pin Function Alternate Function
1 VBAT
2 PC13
3 PC14
4 PC15
5 PH0
6 PH1
7 NRST
8 VSSA
9 VDDA
10 PA0
11 PA1 I2C1_SMBA SPI1_SCK
12 PA2 OCTOSPI1_NCS
13 PA3 OCTOSPI1_CLK
14 PA4 SPI1_NSS SPI3_NSS OCTOSPI1_NCS
15 PA5 SPI1_SCK
16 PA6 SPI1_MISO OCTOSPI1_IO3
17 PA7 I2C3_SCL SPI1_MOSI OCTOSPI1_IO2
18 PB0 SPI1_NSS OCTOSPI1_IO1
19 PB1 OCTOSPI1_IO0
20 PB2 I2C3_SMBA
21 PB10 I2C2_SCL I2C4_SCL SPI2_SCK OCTOSPI1_CLK
22 PB11 I2C2_SDA I2C4_SDA OCTOSPI1_NCS
23 VSS
24 VDD
25 PB12 I2C2_SMBA SPI2_NSS OCTOSPI_NCLK
26 PB13 I2C2_SCL SPI2_SCK
27 PB14 I2C2_SDA SPI2_MISO
28 PB15 SPI2_MOSI
29 PA8
30 PA9 SPI2_SCK
31 PA10
32 PA11 SPI1_MISO FDCAN1_RX
33 PA12 SPI1_MOSI FDCAN1_TX
34 PA13
35 VSS_2
36 VDD_2
37 PA14 I2C1_SMBA I2C4_SMBA
38 PA15 SPI1_NSS SPI3_NSS
39 PB3 SPI1_SCK SPI3_SCK
40 PB4 I2C3_SDA SPI1_MISO SPI3_MISO
41 PB5 I2C1_SMBA SPI1_MOSI SPI3_MOSI
42 PB6 I2C2_SCL I2C4_SCL
43 PB7 I2C1_SDA I2C4_SDA
44 PH3
45 PB8 I2C1_SCL FDCAN1_RX
46 PB9 I2C1_SDA SPI2_NSS FDCAN1_TX
47 VSS_3
48 VDD_3

Protocol Pinout Reference

I2C1

Pin Function Description
11 41 I2C1_SMBA System Management Bus Alert (SMBus mode)
43 46 I2C1_SDA Serial Data Line
42 45 I2C1_SCL Serial Clock Line

I2C2

Pin Function Description
21 26 I2C2_SCL Serial Clock Line
22 27 I2C2_SDA Serial Data Line
25 I2C2_SMBA System Management Bus Alert (SMBus mode)

I2C3

Pin Function Description
17 I2C3_SCL Serial Clock Line
25 I2C3_SMBA System Management Bus Alert (SMBus mode)
40 I2C3_SDA Serial Data Line

I2C4

Pin Function Description
21 42 I2C4_SCL Serial Clock Line
22 43 I2C4_SDA Serial Data Line
37 I2C4_SMBA System Management Bus Alert (SMBus mode)

SPI1

Pin Function Description
11 15 39 SPI1_SCK Serial Clock
14 18 38 SPI1_NSS Slave Select
16 32 40 SPI1_MISO Master-in, Slave-out
17 33 41 SPI1_MOSI Master-out, Slave-in

SPI2

Pin Function Description
21 26 SPI2_SCK Serial Clock
25 SPI2_NSS Slave Select
27 SPI2_MISO Master-in, Slave-out
28 SPI2_MOSI Master-out, Slave-in

SPI3

Pin Function Description
14 38 SPI3_NSS Slave Select
39 SPI3_SCK Serial Clock
40 SPI3_MISO Master-in, Slave-out
41 SPI3_MOSI Master-out, Slave-in

OCTOSPI1

Pin Function Description
12 14 OCTOSPI1_NCS Chip Select
13 21 OCTOSPI1_CLK Clock
16 OCTOSPI1_IO3 I/O Data Line
17 OCTOSPI1_IO2 I/O Data Line
18 OCTOSPI1_IO1 I/O Data Line

FDCAN

Pin Function Description
32 45 FDCAN_RX Receive Data
33 46 FDCAN_TX Transmit Data