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project:chipwhisperer:start

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project:chipwhisperer:start [2019/11/23 20:06] – [Glitching STM32 external board through UFO-board interface] 7.37 MHz vs 8 MHz abyssalproject:chipwhisperer:start [2019/11/23 23:31] – [Glitching STM32 external board through UFO-board interface] abyssal
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 Unfortunately the [[https://wiki.newae.com/CW308T-STM32F | board templates for STM32 for UFO boards are too small for this chip]], which is not made in the smallest TQFP-64 package. Unfortunately the [[https://wiki.newae.com/CW308T-STM32F | board templates for STM32 for UFO boards are too small for this chip]], which is not made in the smallest TQFP-64 package.
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 FYI: just keep all the relevants part of pinout connected (GPIO4-trigger, RX/TX). Use 7.37 MHz clock instead of 8 MHz clock provided by the crystal oscillator or MCO from STLink so that the UART doesn't break. For anyone wondering why 7.37 MHz instead of 8 MHz, is that 7.3728e6/38400 == 192 and 7.3728e6/115200 == 64 precisely which is why 7.37 MHz is used for "industrial" UART clock generators. The chip will of course let you reconfigure the clock network, but for the usage with Chipwhisperer, using 7.37 Mhz is much easier. FYI: just keep all the relevants part of pinout connected (GPIO4-trigger, RX/TX). Use 7.37 MHz clock instead of 8 MHz clock provided by the crystal oscillator or MCO from STLink so that the UART doesn't break. For anyone wondering why 7.37 MHz instead of 8 MHz, is that 7.3728e6/38400 == 192 and 7.3728e6/115200 == 64 precisely which is why 7.37 MHz is used for "industrial" UART clock generators. The chip will of course let you reconfigure the clock network, but for the usage with Chipwhisperer, using 7.37 Mhz is much easier.
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 +====== STM32CubeMX ======
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 +When you look at the clock networks of various STM32, you will find that each chip has different clock network, STM32F427 cannot be easily replaced with STM32F429.
project/chipwhisperer/start.txt · Last modified: 2019/12/15 22:12 by abyssal