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CANIoT Board

Misc:

  • Alt + Shift + F: format table with "Markdown All in One" extension (yzhang.markdown-all-in-one)

TODO:

  • diode USB > LD3985..
  • MCP9804-E/MS x 4 / MCP9803 x 10 (footprint ??)
  • LD1117S50TR alim externe (>5V) + diode
  • capa eth TC1206KKX7RDBB102 (1nF, 2000V)
  • diff pair resistance
  • res + diode buttons
  • unecessary 4.7uF capa with chips (other than I2C line, etc...)

Choosen:

  • Main microcontroller: STM32F429BIT6
  • BLE module: ACN52840

Architecture, interfaces, chips, wiring, etc.

Clocks

  • HSE: Enabled
    • Frency (can be 4 to 24Mhz)
  • LSE: Disable because no need of RTC

Pin configuration

Label stm32f429bit6 Note
STM_RCC_OSC_IN PH0-OSC_IN (32) HSE Clock
STM_RCC_OSC_OUT PH1-OSC_OUT (33) HSE Clock
STM_RCC_OSC32_IN PC14-RCC_OSC32_IN (9) RCC Clock (optionnal)
STM_RCC_OSC32_OUT PC15-RCC_OSC32_OUT (10) RCC Clock (optionnal)
MCO1 PA8 (142)
MCO2 PC9 (141) Shared with SDIO_D1

Power supply

  • MP2359

SWD

Label stm32f429bit6 Note
STM_SWDIO PA13(JTMS-SWDIO) (147)
STM_SWCLK PA14(JTCK-SWCLK) (159)
STM_SWO PB3(JTDOTRACESWO) (192)

Boot0/1

Label stm32f429bit6 Note
BOOT0 BOOT0 (197) Set to VCC
- PB2-BOOT1 (63) Left floating

Misc

VCAPs

  • VCAP1
  • VCAP2

Note low esr:

Note DocID024030 Rev 10 page 97/239 :

When bypassing the voltage regulator, the two 2.2 μF VCAP capacitors are not required and should be replaced by two 100 nF decoupling capacitors.

PDR_ON

  • Set to VDD

LEDs

Label stm32f429bit6 Note
STM32_LED1 PI5 TIM8_CH1 (156) PWM required
STM32_LED2 PI6 TIM8_CH2 (206) PWM required
STM32_LED3 PI7 TIM8_CH3 (207) PWM required
STM32_LED4 PI2 TIM8_CH4 (208) PWM required

Buttons

Label stm32f429bit6 Note
STM32_BTN1 PI8 (7)
STM32_BTN2 PI10 (12)

I2C Bus

Label stm32f429bit6 Note
I2C3_SCL PH7 (97)
I2C3_SDA PH8 (98)

I2C Temperature sensor

  • Chip: MCP9804-E/MS
Label I2C Bus stm32f429bit6 MCP9804-E/MS Note
MCP_SDA SDA - SDA
MCP_SCL SCL - SCL
MCP_ALERT - PI12 (19) ALERT irq

USB

Label stm32f429bit6 Note
USB_SOF PA8 (142) not used
USB_VBUS (USB_OTG_HS_ID) PA9 (143) If USB device is self-powered, VBUS sensing is mandatory
USB_OTG_FS_ID PA10 (144) no OTG
USB_D- PA11 (145) -
USB_D+ PA12 (146) -

SD Card

pics/sd-card-pinout.png

SD Card (SPI)

Label stm32f429bit6 sdcard SPI Note
SPI3_CS PC13 (8) 1 CS
SPI3_MOSI PC12 (163) 2 DI
- - 3 VSS1
- - 4 VDD
SPI3_SCK PC10 (161) 5 SCLK
- - 6 VSS2
SPI3_MISO PC11 (162) 7 D0
- - 8 -
- - 9 -

SD Card (MMC)

Label MMC stm32f429bit6 sdcard MMC Note
SDIO_D3 PC11 (162) 1 CD/DAT3
SDIO_CMD PD2 (166) 2 CMD
- - 3 VSS1
- - 4 VDD
SDIO_CK PC12 (163) 5 SCLK
- - 6 VSS2
SDIO_D0 PC8 (140) 7 DAT1
SDIO_D1 PC9 (141) 8 DAT2 Shared with MC02
SDIO_D2 PC10 (161) 9 DAT3

SD Detect

Label SD_DETECT stm32f429bit6 Note
SDIO_D3 PC11 (162)

Ethernet

Label MII Label RMII stm32f429bit6 MII DP83848C RMII DP83848C Note
MII_CRS PA0 /WKUP ? -
MII_RX_CLK RMII_REF_CLK PA5 (54) ? X1 (34)
MII_MDIO RMII_MDIO PA2 (45) ? MDIO (30)
MII_COL PA3 ? -
MII_RX_DV RMII_CRS_DV PA7 (56) ? CRS_DV (40)
MII_RXD2 PB0 ? -
MII_RXD3 PB1 ? -
MII_TX_EN RMII_TX_EN PB11 (91) ? TX_EN (2)
MII_MDC RMII_MDC PC1 (36) ? MDC (31)
MII_TXD2 PC2 ? -
MII_TX_CLK PC3 ? -
MII_RXD0 RMII_RXD0 PC4 (57) ? RXD_0 (43)
MII_RXD1 RMII_RXD1 PC5 (58) ? RXD_1 (44)
MII_TXD3 PE2 ? -
MII_TXD0 RMII_TXD0 PG13 (182) ? TXD_0 (3)
MII_TXD1 RMII_TXD1 PG14 (183) ? TXD_1 (4)
RX_ERR

SDRAM

Label stm32f429bit6 AS4C16M16SA-6TIN Note
FMC_SDNWE PC0 (35) WE# (16)
FMC_SDNE0 PC2 (37) CS#
FMC_SDCKE0 PC3 (38) CKE
FMC_D2 PD0 (164) DQ2
FMC_D3 PD1 (165) DQ3
FMC_D13 PD8 (108) DQ13
FMC_D14 PD9 (109) DQ14
FMC_D15 PD10 (110) DQ15
FMC_D0 PD14 (116) DQ0
FMC_D1 PD15 (117) DQ1
FMC_D4 PE7 (79) DQ4
FMC_D5 PE8 (80) DQ5
FMC_D6 PE9 (81) DQ6
FMC_D7 PE10 (84) DQ7
FMC_D8 PE11 (85) DQ8
FMC_D9 PE12 (86) DQ9
FMC_D10 PE13 (87) DQ10
FMC_D11 PE14 (88) DQ11
FMC_D12 PE15 (89) DQ12
FMC_A0 PF0 (16) A0
FMC_A1 PF1 (17) A1
FMC_A2 PF2 (18) A2
FMC_A3 PF3 (19) A3
FMC_A4 PF4 (23) A4
FMC_A5 PF5 (24) A5
FMC_SDNRAS PF11 (70) RAS#
FMC_A6 PF12 (71) A6
FMC_A7 PF13 (74) A7
FMC_A8 PF14 (75) A8
FMC_A9 PF15 (76) A9
FMC_A10 PG0 (77) A10
FMC_A11 PG1 (78) A11
FMC_A12 PG2 (129) A12
FMC_BA0 PG4 (131) BA0
FMC_BA1 PG5 (132) BA1
FMC_SDCLK PG8 (135) CLK
FMC_SDNCAS PG15 (191) CAS#
FMC_NBL0 PE0 (200) LDQM
FMC_NBL1 PE1 (201) UDQM

CAN

  • 3v3 CAN transceiver: TCAN337DCNR
Label stm32f429bit6 TCAN337DCNR Note
CAN1_RX PA11 (145) RXD_1 Used by USB_OTG_FS_DM
CAN1_TX PA12 (156) TXD_1 User by USB_OTG_FS_DP
CAN1_RX PB8 (198) RXD_1
CAN1_TX PB9 (199) TXD_1
- - S_1 (8) Input: Drive high for silent mode, integrated pull down
- - Fault_1 (5) Output: Open drain fault output pin.
CAN2_RX PB5 (194) RXD_2
CAN2_TX PB6 (195) TXD_2
- - S_2 (8) Input: Drive high for silent mode, integrated pull down
- - Fault_2 (5) Output: Open drain fault output pin.

BLE - HCI interface (with ACN52840)

Dma 1:

Label stm32f429bit6 TCAN337DCNT Note
2 P1.10
3 P1.13
4 P1.15
5 P0.02/AIN0
6 P0.03/AIN1
7 P0.28/AIN4
8 P0.29/AIN5
9 P0.31/AIN7
HCI_IRQ PE3 (2) 10 P0.30/AIN6
HCI_MOSI PE6 (SPI4_MOSI) (5) 11 P0.05/AIN3
HCI_CS PE4 (SPI4_NSS) (3) 14 P0.04/AIN2
HCI_SCK PE2 (SPI4_SCK) (1) 15 P0.26
HCI_MISO PE5 (SPI4_MISO) (4) 16 P0.27
17 P0.06
18 P0.10/NFC2
19 P0.09/NFC1
20 P0.08
21 P1.09
22 P0.12
25 USB D-
26 USB D+
27 P0.13
28 P0.15
29 P0.17
30 P0.24
HCI_RST PG3 (130) 31 P0.18/RST Reset
33 SWDIO
34 SWDCLK

Shared

Pins shared between two potential used functions.

Label stm32f429bit6
MCO2 / SDIO_D1 PC9

IO (unused for other functions)

IO pins exposes on the board.

If - is written in the note column, it means that the pin has only the GPIO function, and no interesting function.

The star * means that the pin is select for the labelled function.

Label stm32f429bit6 Selected function
USART4_TX PA0 TIM2_CH1/TIM5_CH1/USART4_TX
USART4_RX PA1 TIM2_CH2/TIM5_CH2/USART4_RX
TIM2_CH4 PA3 TIM2_CH4/TIM5_CH4/TIM9_CH2
PA4 PA4 TIM8_CH1N
PA6 PA6 TIM3_CH2/TIM8_CH1N
PA10 PA10 TIM1_CH3
PA15 PA15 TIM2_CH1
PB0 PB0 TIM1_CH2N/TIM3_CH3/TIM8_CH2N
PB1 PB1 TIM1_CH3N/TIM3_CH4/TIM8_CH3N
PB2 PB2 -
PB4 PB4 TIM3_CH1
PB7 PB7 TIM4_CH2
TIM2_CH3 PB10 TIM2_CH3/SPI2_SCK
PB14 PB14 TIM1_CH2N/TIM8_CH2N/SPI2_MISO
PB15 PB15 TIM1_CH3N/TIM8_CH2N/SPI2_MOSI
USART6_TX PC6 TIM3_CH1/USART6_TX
USART6_RX PC7 TIM3_CH2/USART6_RX
PD4 PD4 -
USART2_TX PD5 USART2_TX
USART2_RX PD6 SPI3_MOSI/USART2_RX
PD7 PD7 -
PD11 PD11 -
PD12 PD12 TIM4_CH1
PD13 PD13 TIM4_CH2
UART7_RX PF6 UART7_RX
UART7_TX PF7 UART7_TX
SPI5_MISO PF8 SPI5_MISO
SPI5_MOSI PF9 SPI5_MOSI
GPIO_PF10 PF10 -
PG6 PG6 -
PG7 PG7 -
PG9 PG9 USART6_RX
PG10 PG10 -
PG12 PG12 SPI6_MISO
PH4 PH4 I2C2_SCL
SPI5_SCK PH6 SPI5_SCK
PH9 PH9 TIM12_CH2
TIM5_CH1 PH10 TIM5_CH1
TIM5_CH2 PH11 TIM5_CH2
TIM5_CH3 PH12 TIM5_CH3
PH14 PH14 TIM8_CH2N
PH15 PH15 TIM8_CH3N
TIM5_CH4 PI0 TIM5_CH4
PI1 PI1 SPI2_SCK
PI3 PI3 -
PI4 PI4 -
PI11 PI11 -

Micros shortage

Ideally

STM32F437VIT6TR STM32F437VIT6 STM32F439IIT6 STM32F439VIT6 STM32F437ZIT7TR STM32F437ZIT7 STM32F437ZIT6 STM32F437VIT7 STM32F437IIT6 STM32F439BIT6 STM32F439ZIT6

Other solutions:

SDRAM:

Ressources