9 lines
423 B
Markdown
9 lines
423 B
Markdown
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## technical info
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STM32 hard-coded bootloader support CAN firmware update but only on specific hardware pins PB5 PB13 which conflict with SPI hardware pins, weird not great option for us.
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http://www.feaser.com is an open source bootloader which allows CAN firmware update via pins. feaser uses it's custom (?) update protocol using two CAN PIDs.
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This was tested on https://www.peak-system.com/PCAN-USB.199.0.html?&L=1 |