[chbot] Surplus Linux boards M93030B

[Mark Atherton]

Part appears to support I2S; no CODEC, but a popular interface; not sure 
if the IF is exposed.

Is there a limit to semicolons per sentence ?



On 27/09/2020 3:31 PM, Andrew Dachs wrote:
> I also can’t find a mention of it other than in the machine types header file. Are there components on the back? The proper rs232 makes it interesting but the clincher would be if there was an audio codec.
> 
> Sent from my iPhone
> 
>> On 27/09/2020, at 9:26 AM, Mark Atherton <markaren1 at xtra.co.nz> wrote:
>>
>> Apart from the obvious stuff sticking out of the board, the datasheet for the CPU also mentions I2C, SPI, SD card, RS485, PWM, GPIO and a USB host. So any, or all of the above could be brought out on the headers.
>>
>>> On 27/09/2020 9:10 AM, Andrew Dachs wrote:
>>> Any idea what the headers are for?
>>> Sent from my iPhone
>>>>> On 27/09/2020, at 8:55 AM, Mark Atherton <markaren1 at xtra.co.nz> wrote:
>>>>
>>>> Just found a supply of older industrial-grade ARM based SBCs which appear to support Linux. There may be quite a few available, and at low cost.
>>>>
>>>> http://www.idesignz.org/misc/M93030B_SBC.jpg
>>>>
>>>> CPU: Atmel AT91RM9200,
>>>>
>>>> FLASH: 2 x 45DB642 (16M bytes total). RAM: 2 x K4S561632H (64M bytes total).
>>>>
>>>> Ethernet Phy: KSZ8721BL (100M). MAC 00-04-E8-XX-XX-XX, which was registered by IER, Inc.
>>>>
>>>> At least 2 x RS232 ports, with MAX3243 buffers.
>>>>
>>>> Full size USB-B socket (USB device, not host).
>>>>
>>>> RTC: M41T00, with small backup cell.
>>>>
>>>> White headers are 2mm pitch.
>>>>
>>>> 106 x 84mm including connector protrusions.
>>>>
>>>> Board is 2007 vintage, and marked 'M93030B'
>>>>
>>>> Various linux Distributions identify the unit as 'MACH_M93030'.
>>>>
>>>> --------
>>>>
>>>> Found a UBOOT distribution, and references to MACH_M93030.
>>>>
>>>> A full OEM hardware manual will be very useful, but nothing obvious pops up.
>>>>
>>>> The 64-mega-bit question is of course how much effort is a board like this worth to get it going ?
>>>>
>>>> Thoughts please.
>>>>
>>>> -Mark
>>>>
>>>>
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>>
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