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--- arm:stm32f3discovery [2021/08/22 10:00] – [STM32F3discovery] utedass
+++ arm:stm32f3discovery [2022/09/12 00:30] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 ====== STM32F3discovery ======
-MCU: STM32F303
+MCU: [[https://www.st.com/en/microcontrollers-microprocessors/stm32f303vc.html|STM32F303VCT6]]
 ARM core: [[https://developer.arm.com/ip-products/processors/cortex-m/cortex-m4|ARM Cortex-m4]]
 ARM architecture: [[https://developer.arm.com/documentation/ddi0403/ee|Armv7E-M]]
+[[https://www.st.com/en/development-tools/stm32cubeide.html|STM32CubeIDE]]
 [[https://www.st.com/en/microcontrollers-microprocessors/stm32f303vc.html#tools-software|STM32F303VC]] -- Drivers and stuff for the MCU.
@@ Line 25: / Line 27: @@
 The development board is of revision E.
+The voltage for all I/O ports are 3.3 V
 ====== Pinout ======
+[[https://www.st.com/content/ccc/resource/technical/document/user_manual/8a/56/97/63/8d/56/41/73/DM00063382.pdf/files/DM00063382.pdf/jcr:content/translations/en.DM00063382.pdf|UM1570]] -- User manual for the discovery board includes details regarding solder bridges and interconnections between the onboard programmer and the target MCU.
+All pins are 3.3 V.
 ^ Function ^ Port/pin ^ Pin ^ Comment ^
-| Led N  | PE9 |  | LD3 Red |
+| LD4  | PE8  | 39 | Led NW Blue |
-| Led NE | PE10 |  | LD5 Orange |
+| LD3  | PE9  | 40 | Led N  Red |
-| Led E  | PE11 |  | LD7 Green |
+| LD5  | PE10 | 41 | Led NE Orange |
-| Led SE | PE12 |  | LD9 Blue |
+| LD7  | PE11 | 42 | Led E  Green |
-| Led S  | PE13 |  | LD10 Red |
+| LD9  | PE12 | 43 | Led SE Blue |
-| Led SW | PE14 |  | LD8 Orange |
+| LD10 | PE13 | 44 | Led S  Red |
-| Led W  | PE15 |  | LD6 Green |
+| LD8  | PE14 | 45 | Led SW Orange |
-| Led NW | PE8 |  | LD4 Blue |
+| LD6  | PE15 | 46 | Led W  Green |
 ^ Function ^ Port/pin ^ Pin ^ Comment ^
-| User button  | PA0 |  |  |
+| User button  | PA0 | 23 |  |
+^ Function ^ Port/pin ^ Pin ^ Comment ^
+| Clock in | PF0 |  | 8 MHz from on-board programmer |
+^ Function ^ Port/pin ^ Pin ^ Comment ^
+| Virtual comport TX  | PC4 | 33 | VCP, MCU -> computer |
+| Virtual comport RX  | PC5 | 34 | VCP, MCU <- computer |
+===== Pinout on protoboard =====
+^ Function ^ Port/pin ^ Pin ^ Comment ^
+| CAN RX  | PB8 | 95 | To CAN Tranceiver |
+| CAN TX  | PB9 | 96 | To CAN Tranceiver |
+====== Debugging with SWO ======
+It is possible to send debug messages through the ARM debuggers trace functionality ITM.
+  * Short solderbridge SB10 on the development board
+  * Put code in the firmware that sends messages
+  * Start debugging, but pause
+  * Enable ITM window and (at least channel 0)
+  * *Press start trace*
+  * Then continue debugging as usual.
+[[https://percepio.com/2016/06/09/arm-itm/]]
+[[https://www.st.com/resource/en/application_note/dm00354244-stm32-microcontroller-debug-toolbox-stmicroelectronics.pdf|STM32 Debugging toolbox manual]]