offa()
{
P2_0=0; xdelay();
P2_1=0; xdelay();
P2_2=0; xdelay();
}
// h1,h2--> p1_0, p1_1
void keyscan(void)
{
unsigned char n;
/*
电路
p1_0 -- R --- + +
p1_1 --R--- + +
p1_2 行1------------ +
p1_3 行2-----------------
*/
//扫描第一行
P1=0xff;
xdelay();
P1=0xfb; //拉低第一行 , 1011
xdelay();
n=P1;
if(n!=0xfb){
switch(n){
case(0xf9):
led2on;break;
case(0xfa):
led3on;break;
case 0xf8 :
led2on;led3on;break;
default: led1on;ldelay(); ldelay();led1off; ldelay(); ldelay();break;
}
}
led2off;
led3off
}
/**
* @brief Initialization of GPIO Port F
*
* @note LED pins set to output
*/
void
GPIO_Init(uint32_t outputs, uint32_t inputs) {
GPIOA_Type *gpio;
#ifdef USE_AHB
gpio = GPIOF_AHB;
/* Enable AHB access for Port F */
SYSCTL->GPIOHBCTL |= BIT(5);
#else
gpio = GPIOF;
#endif
/* Enable clock for Port F */
SYSCTL->RCGCGPIO |= BIT(5);
xdelay(10);
/*
* To modify PF0, it is necessary to unlock it because it can be used as NMI
* See Datasheet: Observation at 10.1 and Commit control in 10.2.4
*/
if( (inputs|outputs)&1 ) {
gpio->LOCK = 0x4C4F434B; // Unlock to set PF0 = ASCII('LOCB')
*(uint32_t * )(&(gpio->CR)) = 1; // CR is marked read-only
}
/* Pins for led are digital output */
gpio->DIR = outputs; // Only specified bits are outputs
gpio->DEN = inputs|outputs; // All pins are digital I/O
gpio->PUR = inputs; // Set pull up for inputs
xdelay(10);
if( (inputs|outputs)&1 ) {
gpio->LOCK = 0x0; // Lock again
*(uint32_t * )(&(gpio->CR)) = 0x0; // CR is marked read-only
}
}
int main(int argc, char *argv[])
{
float leftlen = 50.0f, rightlen = 60.0f;
float feedback = 37.5f;
float wetout = 100.0f;
int leftlen_smp, rightlen_smp;
int i;
get_rate();
for (i = 1; i < argc; i++)
{
if (!strcmp(argv[i], "-leftlen") && i+1 < argc)
leftlen = atof(argv[++i]);
else if (!strcmp(argv[i], "-rightlen") && i+1 < argc)
rightlen = atof(argv[++i]);
else if (!strcmp(argv[i], "-feedback") && i+1 < argc)
feedback = atof(argv[++i]);
else if (!strcmp(argv[i], "-wetout") && i+1 < argc)
wetout = atof(argv[++i]);
else if (!strcmp(argv[i], "-help"))
{
fprintf(stderr, "options: -leftlen ms, -rightlen ms, "
"-feedback percent, -wetout percent\n");
exit(0);
}
}
leftlen = CLAMP(0.0f, leftlen, 30000.0f);
leftlen_smp = (int)(leftlen * RATE / 1000.0f);
if (leftlen_smp == 0)
leftlen_smp = 1;
rightlen = CLAMP(0.0f, rightlen, 30000.0f);
rightlen_smp = (int)(rightlen * RATE / 1000.0f);
if (rightlen_smp == 0)
rightlen_smp = 1;
SET_BINARY_MODE
xdelay(leftlen_smp, rightlen_smp, feedback, wetout);
return 0;
}
/**
* @brief Initialization of GPIO Port F
*
* @note LED pins set to output
*/
void
GPIO_Init(uint32_t outputs, uint32_t inputs) {
GPIOA_Type *gpio;
#ifdef USE_AHB
gpio = GPIOF_AHB;
/* Enable AHB access for Port F */
SYSCTL->GPIOHBCTL |= BIT(5);
#else
gpio = GPIOF;
#endif
/* Enable clock for Port F */
SYSCTL->RCGCGPIO |= BIT(5);
/* Pins for led are digital output */
gpio->DIR = outputs; /* Only specified bits are outputs */
gpio->DEN = inputs|outputs; /* All pins are digital I/O */
xdelay(10);
}
ona()
{
P2_0=1; xdelay();
P2_1=1; xdelay();
P2_2=1; xdelay();
}
/**
* @brief Quick and dirty delay routine
*
* It gives approximately 1ms delay at 4 MHz (MSI)
*
*/
void Delay(uint32_t delay) {
xdelay(INTERVAL);
}