Difference: BoardSupportPackageWB5M (11 vs. 12)

Revision 122022-10-10 - PeterSchmid

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D11	PA7	SPI1_MOSI
RGB_SELECT	PH1	RGB CS

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PWM Driver Chip: [TLC59731

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PWM Driver Chip: TLC59731

SPI is used for the timing. 4 SPI bits are one pulse position bit. fCLK(SDI) = 20 kHz to 600 kHz, the max. frequency for the SPI is therefore 2.4 MHz, I choosed 2 MHz. It takes about 30 us to set one RGB-LED.

UART VCP ST-LINK

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