[En-Nut-Discussion] EIR ADC Converter and Configurator

[Harald Kipp]

Jörg Wiegelmann wrote:
> 
> I would like to use the ADC on the EIR board. Unfortanetly the entry in the configurator is disabled.  I think the driver of the Sam7 Board (HW_MCU_AT91SAM7X) should work also with the eir. But I'm not familiar with the configurator. So I can't enable it. Can anyone help? 

Jörg,

Typically easy, but not in this case. The important part is in 
conf/arch/arm.nut:

     {
         name = "nutarch_arm_adc_at91",
         brief = "AT91 ADC",
         description = "ADC interface for AT91 (currently SAM7 only).",
         requires = { "HW_MCU_AT91SAM7X" },
         provides = { "DEV_ADC" },
         sources = { "arm/dev/at91_adc.c" },
     },

The problem is, that "requires" specifies HW_MCU_AT91SAM7X, but should 
specifiy HW_ADC_AT91, which needs to be added to the supported MCUs in 
the "provides" section as well.

But don't worry, there is a ugly, but simple solution. If you look 
further up, the author of nutarch_arm_twi_at91_sam7se had the same 
problem. Instead of going the right, but uncomfortable way, he simply 
copied the existing nutarch_arm_twi_at91_sam7s entry and changed 
HW_MCU_AT91SAM7S to HW_MCU_AT91SAM7SE, because the author of the SAM7S 
part did the same, copying from SAM7X. Gosh, what a crap! What? I did 
that? Never! That was Mr. Hyde!

Harald

P.S.: Sorry for the misleading private email. I didn't recognize that 
this is not ADC, but Configurator related.