2012-07-22 08:28:02 -05:00
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#
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# Config for using Raspberry Pi's expansion header
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#
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# This is best used with a fast enough buffer but also
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# is suitable for direct connection if the target voltage
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# matches RPi's 3.3V and the cable is short enough.
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#
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# Do not forget the GND connection, pin 6 of the expansion header.
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#
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interface bcm2835gpio
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2015-06-04 02:25:10 -05:00
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bcm2835gpio_peripheral_base 0x20000000
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2012-07-22 08:28:02 -05:00
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# Transition delay calculation: SPEED_COEFF/khz - SPEED_OFFSET
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# These depend on system clock, calibrated for stock 700MHz
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# bcm2835gpio_speed SPEED_COEFF SPEED_OFFSET
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bcm2835gpio_speed_coeffs 113714 28
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# Each of the JTAG lines need a gpio number set: tck tms tdi tdo
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# Header pin numbers: 23 22 19 21
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bcm2835gpio_jtag_nums 11 25 10 9
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# If you define trst or srst, use appropriate reset_config
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# Header pin numbers: TRST - 26, SRST - 18
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# bcm2835gpio_trst_num 7
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# reset_config trst_only
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# bcm2835gpio_srst_num 24
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# reset_config srst_only srst_push_pull
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# or if you have both connected,
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# reset_config trst_and_srst srst_push_pull
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