[Arm-netbook] SPI stress!

[Luke Kenneth Casson Leighton]

On Tue, Oct 20, 2015 at 2:32 PM, joem <joem at martindale-electric.co.uk> wrote:
> On Mon, 2015-10-19 at 15:34 +0100, Luke Kenneth Casson Leighton wrote:
>> RRRRRR :)
>>
>> i'm attempting to get the yunlea spi lcd with an hx8357 up
>
> Sample code https://github.com/adafruit/Adafruit_HX8357_Library
>
> Try with Arduino first maybe?

 i decided to do a back-to-back SPI1 to SPI2 connection, to get
familiar with SPI on the STM32F.  that *alone* is proving tricky.  and
that's with just "simple wires" on a loopback arrangement.

 the advantage of the loopback arrangement (and having a digital 72mhz
scope) is i can see both ends of the conversation.

 once i've got that, then i'll introduce the hardware.  linux kernel
has hx8357.c which is simpler (and GPL'd).

 l.