On Wed, 24 Jan 2018 11:39:35 +0000, RobH  declaimed the
following:


> From the list there are just 6 pins which read 1, and where the
>voltages were 3.23 - 3.27 volts
>
>Those pins are
>Physical pin no.
>13 29 33 37 22 32
>
>Now I am using pin no.32 which gives 3.24V, and the led lights up when
>set to (GPIO.HIGH), and goes off when set to (GPIO.LOW).

 That is an intriguing set... Besides none of them being adjacent on the
header, the corresponding chip GPIO numbers are also scattered about --
which kills my hypothesis that a "block" of GPIOs might have been damaged
en-mas. But worse, a read of the BCM2835 Peripherals manual implies all the
exposed GPIOs are from one chip block, so even a "dead block" concept is
void.

 Figuring out if the "alternate functions" for some of the dead pins are
usable is beyond discussion... Header pin 11/GPIO17, for example, has
alternate functions: SD9 (secondary memory data bus), UART0 RTS, SPI1 Chip
Select 1, and UART1 RTS.

 Other than that -- it may be time to consider a second RPi...
(Something I should do myself -- I have spares for BBB, TIVA C [all three
models], Arduino, ancient over-priced BASIC Stamps, and even Propeller
boards).
--
 Wulfraed                 Dennis Lee Bieber         AF6VN
    wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/

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