[ECOS] vectors.S with ARM thumb mode

[Jürgen Lambrecht]

Gary Thomas wrote:
> Jürgen Lambrecht wrote:
> 
>> To get ecos compiled with thumb mode enabled, I had to remove the LED 
>> code (LED 3, LED 2, LED 1) in 
>> platform/hal/arm/arch/current/src/vectors.S.
>>
>> Does anyone know why?
> 
> 
> You'd have to look at the platform specific macro 'CYGHWR_LED_MACRO'
> Most likely, it does things in a non-thumb compatible way.
> 
> What's the target/platform?
platform is based on the eb55
processor is AT91M55800A
The LED macro's are the same as the eb55 ones, except for the location of the pins:

         .macro  _led_init               // called in macro  _setup
         ldr     r0,=AT91_PIOB
         mov     r1,#0x0FF00000          // EXT_GPIO1-2, NC,NC, STATUS_LED4-1
         str     r1,[r0,#AT91_PIO_PER]   // PIO enable
         str     r1,[r0,#AT91_PIO_OER]   // PIO output enable
         _led    15                       // all LEDs on
         .endm

         .macro _led y
         ldr     r0,=AT91_PIOB
         mov     r1,#0x0FF00000
         str     r1,[r0,#AT91_PIO_SODR]  // Set out bits   => LEDs off
         mov     r1,#(\y<<20)
         str     r1,[r0,#AT91_PIO_CODR]  // Clear out bits => LEDs on
         .endm

Kind regards,
Juergen
> 

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