Commit 5f37f406 authored by Balazs Udvarhelyi's avatar Balazs Udvarhelyi

Update SETUP.md

parent cd953819
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## Hardware requirements
In order to use a low-cost platform, we have decided to use a STMicroelectronics Discovery board. The version used for this ctf is based on the [STM32F030R8](https://www.st.com/content/st_com/en/products/microcontrollers-microprocessors/stm32-32-bit-arm-cortex-mcus/stm32-mainstream-mcus/stm32f0-series/stm32f0x0-value-line/stm32f030r8.html) with an ARM Cortex-M0. The configuration we have adopted is the _HSE oscillator on-board from X2 crystal (not provided)_, reported at page 17 of the [user manual of the board](https://www.st.com/resource/en/user_manual/dm00092306-discovery-kit-for-stm32f030-value-line-microcontrollers-stmicroelectronics.pdf). The list of modifications we have applied to the board are listed as follows:
* In X2, a 8MHz quartz [crystal](https://be.farnell.com/txc/9b-8-000maaj-b/xtal-8-000mhz-18pf-hc-49s/dp/1842268?ost=crystal+9B-8.000MAAJ-B) has been soldered. We have used a through-hole type component. Following the user manual and the schematic, we have used a 18pF capacitors for C13 and C14. The resistor R23 is zero ohm and R22 is 390 ohms. In addition, we have removed solder bridges SB16, SB17 and SB18.
* To increase the available bandwidth at the probing point, we have removed C18, C19, C20, C21. In addition, L1 has been substituted with a 0ohm resistor.
* To increase the available bandwidth at the probing point, we have removed C18, C19, C20, C21.
Once these modifications are done, one can plug the board in the following way:
1. **UART**: The board and the computer communicates through an external UART interface. Namely, an [UM232R](https://www.ftdichip.com/Support/Documents/DataSheets/Modules/DS_UM232R.pdf) is connected to the board with TX and RX being respectively PA9 and P10. On this point, any other UART modules will work.
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