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| MFG Part # | Info | Digikey Link | Product Details |
|---|---|---|---|
STM32F072RBT6 | ARM Cortex-M0 microcontroller Includes CAN controller, 51 IOs, 64-LQFP | 497-14644-ND | http://www.st.com/content/st_com/en/products/microcontrollers/stm32-32-bit-arm-cortex-mcus/stm32f0-series/stm32f0x2/stm32f072rb.html |
| TCAN332DR | CAN Transceiver Replacement for the SN65HVD232DR |
| |
| ??? | CAN connector TODO: Move to different connector for internal CAN connections? | ||
TE 1565357-6 | 50 pin, 0.5mm pitch, 4-6mm stack height Non-hermaphroditic but slightly cheaper | A110996CT-ND | http://www.te.com/usa-en/product-1565357-6.html#pdp-docs-features
|
10106813-051112LF | Mezzostak Hermaphroditic connectors Samples have been requested | 609-4602-1-ND | |
LS2-125-01-F-D-RA1 | Samtec LS2 locking hermaphroditic connectors SICK SHIT, but they keep getting sold out on digikey and are a bit more expensive Samples have been requested | LS2-125-01-F-D-RA1-ND |
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MCU Schematic Capture
Peripheral Selection
- 51 GPIOs
- 2 SPI, 2 I2C, 4 USART, CAN, USB, HDMI-CEC
- 16 Channel 12-bit ADC
- 18 Capacitive Sense Channels
- 2 Analog Comparators
- Serial Wire Debug (SWD)
Most I/O pins on the STM32F072 are also used for peripheral functions such as SPI, I2C, USART, CAN, USB, CEC, SWD, etc. To increase flexibility, most of the I/O will be routed to the carrier board. The controller board will require a method to switch peripherals on/off (DIP switches, 0 ohm resistors, etc) to increase/decrease the number of I/O as necessary.
Important notes
- PC13, PC14 and PC15 are supplied through the power switch. Since the switch only sinks a limited amount of current (3 mA), the use of GPIOs PC13 to PC15 in output mode is limited: The speed should not exceed 2 MHz with a maximum load of 30 pF. These GPIOs must not be used as current sources (e.g. to drive an LED).