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Document fix for avrftdi bit number should start with 0 

This resolves https://github.com/avrdudes/avrdude/issues/369
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mcuee 2023-01-11 14:50:24 +08:00 committed by GitHub
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@ -223,8 +223,8 @@ The STK600, JTAG ICE mkII/3, AVRISP mkII, USBasp, avrftdi (and derivatives), and
programmers communicate through the USB, using @code{libusb} as a
platform abstraction layer.
The avrftdi adds support for the FT2232C/D, FT2232H, and FT4232H devices. These all use
the MPSSE mode, which has a specific pin mapping. Bit 1 (the lsb of the byte in the config
file) is SCK. Bit 2 is SDO, and Bit 3 is SDI. Bit 4 usually reset. The 2232C/D parts
the MPSSE mode, which has a specific pin mapping. Bit 0 (the lsb of the byte in the config
file) is SCK. Bit 1 is SDO, and Bit 2 is SDI. Bit 3 usually reset. The 2232C/D parts
are only supported on interface A, but the H parts can be either A or B (specified by the
usbdev config parameter).
The STK500, STK600, JTAG ICE, and avr910 contain on-board logic to control the programming of the target