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Eval-HW » Historie » Version 21

Maximilian Seesslen, 13.06.2023 14:14

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h1. Eval
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h2. Funk
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Ordered RFM69CW-868S2 x8; je  3.70Euro
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https://www.hoperf.com/modules/rf_transceiver/RFM69C.html
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https://www.hoperf.com/data/upload/portal/20190307/RFM69CW-V1.1.pdf
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2x7 pins, 2mm pitch, 13,6mm horizontal pitch
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Packet mode is already recommended.
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With AES there are still max 64 Bytes for transfer. (Not enough for CAN-FD)
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h2. MCU
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STM32F373C8T6; 4,75€
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Cortex-M4 etwas overkill; 64 KB, LQFP-48
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Gibt gerade nichts anderes.
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STM32G441KBT6; 5,45€
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Cortex-M4F etwas overkill; 128 KB, LQFP-32
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STM32F072C8T6; 4,38€
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Cortex-M0; 64KB, LQFP-48
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STM32F042C6T6; would be perfect; 2.5984€ bei 25 Stk; schoen waers
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Small as possible with CAN. STM32F042 not available.
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What did i get from farnell? STM32F103? STM32L433CCU6; ARM Cortex-M4, 80MHz, 256KB
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* SPI 4
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* 5xGPIO Signals
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* CAN 2
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* 2xLED RX/TX
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* 2xLED HB/User
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* UART 2
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* SWD 3
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STM32F103C6U6A, would be ok, just to get rid of them
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32kByte Flash; 10kByte RAM; 72Mhz; VFQFPN-48
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Quite big.