@ -1,8 +1,11 @@
# include "d51_util.h"
/ / Display unsigned 32 - bit number through m15
/ / Read as follows : 1230 = | | | | | | | | | | ( note always ending toggle )
void m15_print ( uint32_t x )
static volatile uint32_t w ;
/ / Display unsigned 32 - bit number by port toggling DBG_1 ( to view on a scope )
/ / Read as follows : 1230 = | | | | | | | | ( note zero is fast double toggle )
# define DBG_PAUSE 5
void dbg_print ( uint32_t x )
{
int8_t t ;
uint32_t n ;
@ -26,24 +29,34 @@ void m15_print(uint32_t x)
while ( p2 - - ) p * = 10 ;
n = x / p ;
x - = n * p ;
while ( n > 0 )
if ( ! n )
{
m15_on ;
DBG_1_ON ;
DBG_1_OFF ;
DBG_1_ON ;
DBG_1_OFF ;
n - - ;
m15_off ;
}
/ / Will always end with an extra toggle
m15_on ;
else
{
while ( n > 0 )
{
DBG_1_ON ;
DBG_1_OFF ;
n - - ;
}
}
t - - ;
m15_off ;
}
for ( w = DBG_PAUSE ; w ; w - - ) ; / / Long pause after number is complete
}
/ / Display unsigned 32 - bit number through debug led
/ / Read as follows : 1230 = [ * ] [ * * ] [ * * * ] [ * * ] ( note zero is fast double flash )
# define DLED_ONTIME 1000000
# define DLED_PAUSE 1500000
volatile uint32_t w ;
void dled_print ( uint32_t x , uint8_t long_pause )
{
int8_t t ;
@ -70,13 +83,13 @@ void dled_print(uint32_t x, uint8_t long_pause)
x - = n * p ;
if ( ! n )
{
led_on ;
DBG_LED_ON ;
for ( w = DLED_ONTIME / 4 ; w ; w - - ) ;
led_off ;
DBG_LED_OFF ;
for ( w = DLED_ONTIME / 4 ; w ; w - - ) ;
led_on ;
DBG_LED_ON ;
for ( w = DLED_ONTIME / 4 ; w ; w - - ) ;
led_off ;
DBG_LED_OFF ;
for ( w = DLED_ONTIME / 4 ; w ; w - - ) ;
n - - ;
}
@ -84,9 +97,9 @@ void dled_print(uint32_t x, uint8_t long_pause)
{
while ( n > 0 )
{
led_on ;
DBG_LED_ON ;
for ( w = DLED_ONTIME ; w ; w - - ) ;
led_off ;
DBG_LED_OFF ;
for ( w = DLED_ONTIME / 2 ; w ; w - - ) ;
n - - ;
}
@ -102,11 +115,52 @@ void dled_print(uint32_t x, uint8_t long_pause)
}
}
# ifdef DEBUG_BOOT_TRACING
# ifdef DEBUG_BOOT_TRACING_ENABLE
volatile uint32_t debug_code ;
void EIC_15_Handler ( )
/ / These macros are for compile time substitution
# define DEBUG_BOOT_TRACING_EXTINTn (DEBUG_BOOT_TRACING_PIN % _U_(0x10))
# define DEBUG_BOOT_TRACING_EXTINTb (_U_(0x1) << DEBUG_BOOT_TRACING_EXTINTn)
# define DEBUG_BOOT_TRACING_CONFIG_INDn (DEBUG_BOOT_TRACING_EXTINTn / _U_(0x8))
# define DEBUG_BOOT_TRACING_CONFIG_SENSEn (DEBUG_BOOT_TRACING_EXTINTn % _U_(0x8))
# define DEBUG_BOOT_TRACING_CONFIG_SENSEb (DEBUG_BOOT_TRACING_CONFIG_SENSEn * _U_(0x4))
# define DEBUG_BOOT_TRACING_IRQn (EIC_0_IRQn + DEBUG_BOOT_TRACING_EXTINTn)
/ / These macros perform PORT + PIN definition translation to IRQn in the preprocessor
# define PORTPIN_TO_IRQn_EXPAND(def) def
# define PORTPIN_TO_IRQn_DEF(def) PORTPIN_TO_IRQn_EXPAND(def)
# if DEBUG_BOOT_TRACING_PIN < 10
# define PORTPIN_TO_IRQn_TODEF(port, pin) PORTPIN_TO_IRQn_DEF(PIN_ ## port ## 0 ## pin ## A_EIC_EXTINT_NUM)
# else
# define PORTPIN_TO_IRQn_TODEF(port, pin) PORTPIN_TO_IRQn_DEF(PIN_ ## port ## pin ## A_EIC_EXTINT_NUM)
# endif
# define PORTPIN_TO_IRQn(port, pin) PORTPIN_TO_IRQn_TODEF(port, pin)
/ / These macros perform function name output in the preprocessor
# define DEBUG_BOOT_TRACING_HANDLER_CONCAT(irq) void EIC_ ## irq ## _Handler(void)
# define DEBUG_BOOT_TRACING_HANDLER(irq) DEBUG_BOOT_TRACING_HANDLER_CONCAT(irq)
/ / To generate the function name of the IRQ handler catching boot tracing ,
/ / certain macros must be undefined , so save their current values to macro stack
# pragma push_macro("PA")
# pragma push_macro("PB")
# pragma push_macro("_L_")
/ / Undefine / redefine pushed macros
# undef PA
# undef PB
# undef _L_
# define _L_(x) x
/ / Perform the work and output
/ / Ex : PORT PB , PIN 31 = void EIC_15_Handler ( void )
DEBUG_BOOT_TRACING_HANDLER ( PORTPIN_TO_IRQn ( DEBUG_BOOT_TRACING_PORT , DEBUG_BOOT_TRACING_PIN ) )
/ / Restore macros
# pragma pop_macro("PA")
# pragma pop_macro("PB")
# pragma pop_macro("_L_")
{
/ / This is only for non - functional keyboard troubleshooting and should be disabled after boot
/ / Intention is to lock up the keyboard here with repeating debug led code
@ -120,13 +174,13 @@ void debug_code_init(void)
{
DBGC ( DC_UNSET ) ;
/ / Configure Ports for EIC on PB31
PORT - > Group [ 1 ] . DIRCLR . reg = 1 < < 31 ; / / Input
PORT - > Group [ 1 ] . OUTSET . reg = 1 < < 31 ; / / High
PORT - > Group [ 1 ] . PINCFG [ 31 ] . bit . INEN = 1 ; / / Input Enable
PORT - > Group [ 1 ] . PINCFG [ 31 ] . bit . PULLEN = 1 ; / / Pull Enable
PORT - > Group [ 1 ] . PINCFG [ 31 ] . bit . PMUXEN = 1 ; / / Mux Enable
PORT - > Group [ 1 ] . PMUX [ 15 ] . bit . PMUXO = 0 ; / / Mux A
/ / Configure Ports for EIC
PORT - > Group [ DEBUG_BOOT_TRACING_PORT ] . DIRCLR . reg = 1 < < DEBUG_BOOT_TRACING_PIN ; / / Input
PORT - > Group [ DEBUG_BOOT_TRACING_PORT ] . OUTSET . reg = 1 < < DEBUG_BOOT_TRACING_PIN ; / / High
PORT - > Group [ DEBUG_BOOT_TRACING_PORT ] . PINCFG [ DEBUG_BOOT_TRACING_PIN ] . bit . INEN = 1 ; / / Input Enable
PORT - > Group [ DEBUG_BOOT_TRACING_PORT ] . PINCFG [ DEBUG_BOOT_TRACING_PIN ] . bit . PULLEN = 1 ; / / Pull Enable
PORT - > Group [ DEBUG_BOOT_TRACING_PORT ] . PINCFG [ DEBUG_BOOT_TRACING_PIN ] . bit . PMUXEN = 1 ; / / Mux Enable
PORT - > Group [ DEBUG_BOOT_TRACING_PORT ] . PMUX [ DEBUG_BOOT_TRACING_PIN / 2 ] . bit . PMUXO = 0 ; / / Mux A
/ / Enable CLK_EIC_APB
MCLK - > APBAMASK . bit . EIC_ = 1 ;
@ -134,25 +188,33 @@ void debug_code_init(void)
/ / Configure EIC
EIC - > CTRLA . bit . SWRST = 1 ;
while ( EIC - > SYNCBUSY . bit . SWRST ) { }
EIC - > ASYNCH . reg = 1 < < 15 ;
EIC - > INTENSET . reg = 1 < < 15 ;
EIC - > CONFIG [ 1 ] . bit . SENSE7 = 2 ;
EIC - > ASYNCH . reg = DEBUG_BOOT_TRACING_EXTINTb ;
EIC - > INTENSET . reg = DEBUG_BOOT_TRACING_EXTINTb ;
EIC - > CONFIG [ DEBUG_BOOT_TRACING_CONFIG_INDn ] . reg | = ( EIC_CONFIG_SENSE0_FALL_Val < < DEBUG_BOOT_TRACING_CONFIG_SENSEb ) ;
EIC - > CTRLA . bit . ENABLE = 1 ;
while ( EIC - > SYNCBUSY . bit . ENABLE ) { }
/ / Enable EIC IRQ
NVIC_EnableIRQ ( EIC_15 _IRQn) ;
NVIC_EnableIRQ ( DEBUG_BOOT_TRACING _IRQn) ;
}
void debug_code_disable ( void )
{
/ / Disable EIC IRQ
NVIC_DisableIRQ ( EIC_15 _IRQn) ;
NVIC_DisableIRQ ( DEBUG_BOOT_TRACING _IRQn) ;
/ / Disable EIC
EIC - > CTRLA . bit . ENABLE = 0 ;
while ( EIC - > SYNCBUSY . bit . ENABLE ) { }
/ / Default port configuration
PORT - > Group [ DEBUG_BOOT_TRACING_PORT ] . DIRCLR . reg = 1 < < DEBUG_BOOT_TRACING_PIN ; / / Input
PORT - > Group [ DEBUG_BOOT_TRACING_PORT ] . OUTCLR . reg = 1 < < DEBUG_BOOT_TRACING_PIN ; / / Low
PORT - > Group [ DEBUG_BOOT_TRACING_PORT ] . PINCFG [ DEBUG_BOOT_TRACING_PIN ] . bit . INEN = 0 ; / / Input Disable
PORT - > Group [ DEBUG_BOOT_TRACING_PORT ] . PINCFG [ DEBUG_BOOT_TRACING_PIN ] . bit . PULLEN = 0 ; / / Pull Disable
PORT - > Group [ DEBUG_BOOT_TRACING_PORT ] . PINCFG [ DEBUG_BOOT_TRACING_PIN ] . bit . PMUXEN = 0 ; / / Mux Disable
PORT - > Group [ DEBUG_BOOT_TRACING_PORT ] . PMUX [ DEBUG_BOOT_TRACING_PIN / 2 ] . bit . PMUXO = 0 ; / / Mux A
/ / Disable CLK_EIC_APB
MCLK - > APBAMASK . bit . EIC_ = 0 ;
}
@ -162,4 +224,4 @@ void debug_code_disable(void)
void debug_code_init ( void ) { }
void debug_code_disable ( void ) { }
# endif / / DEBUG_BOOT_TRACING
# endif / / DEBUG_BOOT_TRACING_ENABLE