/*----------------------------------------------------------------------------*/
void uartConfigPins(struct UartBase *interface,
const struct UartBaseConfig *config)
{
/* Direction configuration is not needed for alternate function pins */
if (config->rx)
{
/* Configure UART RX pin */
const struct PinEntry * const pinEntry = pinFind(uartPins,
config->rx, interface->channel);
assert(pinEntry);
const struct Pin pin = pinInit(config->rx);
pinInput(pin);
pinSetFunction(pin, pinEntry->value);
}
if (config->tx)
{
/* Configure UART TX pin */
const struct PinEntry * const pinEntry = pinFind(uartPins,
config->tx, interface->channel);
assert(pinEntry);
const struct Pin pin = pinInit(config->tx);
pinInput(pin);
pinSetFunction(pin, pinEntry->value);
}
}
/*----------------------------------------------------------------------------*/
static enum Result interfaceInit(void *object, const void *configBase)
{
const struct InterfaceWrapperConfig * const config = configBase;
struct InterfaceWrapper * const interface = object;
interface->pipe = config->pipe;
interface->rx = pinInit(config->rx);
assert(pinValid(interface->rx));
pinOutput(interface->rx, 0);
interface->tx = pinInit(config->tx);
assert(pinValid(interface->tx));
pinOutput(interface->tx, 0);
return E_OK;
}
void init( int argc, char * argv[] )
{
if(argc > 1)
if(Serial.init_tty(argv[1]) != 0)
return;
if(Serial1.init_tty(LINUX_SERIAL1_TTY) != 0)
return;
if(Serial2.init_tty(LINUX_SERIAL2_TTY) != 0)
return;
sizeof_g_APinDescription = sizeof(g_APinDescription)/sizeof(struct _PinDescription);
sizeof_g_APinState = sizeof(g_APinState)/sizeof(struct _PinState);
pinInit();
/* Initialize fast path to GPIO */
if (fastGpioPciInit())
trace_error("Unable to initialize fast GPIO mode!");
sizeof_g_APwmDescription = sizeof(g_APwmDescription)/sizeof(struct _PwmDescription);
pwmInit();
sizeof_g_AdcDescription = sizeof(g_AdcDescription)/sizeof(struct _AdcDescription);
adcInit();
eepromInit();
}
/*----------------------------------------------------------------------------*/
int main(void)
{
const struct Pin led = pinInit(LED_PIN);
pinOutput(led, false);
struct Interface * const adc = init(AdcOneShot, &adcConfig);
assert(adc);
struct Timer * const timer = init(GpTimer, &timerConfig);
assert(timer);
timerSetOverflow(timer, 1000);
bool event = false;
timerSetCallback(timer, onTimerOverflow, &event);
timerEnable(timer);
while (1)
{
while (!event)
barrier();
event = false;
pinSet(led);
uint16_t voltage;
const size_t bytesRead = ifRead(adc, &voltage, sizeof(voltage));
assert(bytesRead == sizeof(voltage));
(void)bytesRead; /* Suppress warning */
pinReset(led);
}
return 0;
}
/*----------------------------------------------------------------------------*/
int main(void)
{
const uint32_t maxPeriod =
captureUnitConfig.frequency / pwmUnitConfig.frequency + 1;
const uint32_t minPeriod =
captureUnitConfig.frequency / pwmUnitConfig.frequency - 1;
setupClock();
const struct Pin led = pinInit(LED_PIN);
pinOutput(led, false);
struct GpTimerPwmUnit * const pwmUnit = init(GpTimerPwmUnit,
&pwmUnitConfig);
assert(pwmUnit);
struct Pwm * const pwm = gpTimerPwmCreate(pwmUnit, OUTPUT_PIN);
assert(pwm);
pwmSetEdges(pwm, 0, pwmGetResolution(pwm) / 2);
struct GpTimerCaptureUnit * const captureUnit = init(GpTimerCaptureUnit,
&captureUnitConfig);
assert(pwmUnit);
struct Capture * const capture = gpTimerCaptureCreate(captureUnit, INPUT_PIN,
PIN_RISING, PIN_PULLDOWN);
assert(capture);
uint32_t previousTime = 0;
bool event = false;
captureSetCallback(capture, onCaptureEvent, &event);
captureEnable(capture);
pwmEnable(pwm);
while (1)
{
while (!event)
barrier();
event = false;
const uint32_t currentTime = captureGetValue(capture);
const uint32_t period = currentTime - previousTime;
if (period >= minPeriod && period <= maxPeriod)
pinReset(led);
else
pinSet(led);
previousTime = currentTime;
}
return 0;
}
/*----------------------------------------------------------------------------*/
static enum Result pinInterruptInit(void *object, const void *configBase)
{
const struct PinInterruptConfig * const config = configBase;
assert(config);
const struct Pin input = pinInit(config->pin);
assert(pinValid(input));
/* Try to allocate a new channel */
struct PinInterrupt * const interrupt = object;
const int channel = setInstance(interrupt);
if (channel == -1)
return E_BUSY;
/* Configure the pin */
pinInput(input);
pinSetPull(input, config->pull);
interrupt->callback = 0;
interrupt->channel = channel;
interrupt->enabled = false;
interrupt->event = config->event;
interrupt->pin = input.data;
const uint8_t index = interrupt->channel >> 2;
const uint32_t mask = 1UL << interrupt->channel;
/* Enable peripheral */
if (!sysClockStatus(CLK_PINT))
sysClockEnable(CLK_PINT);
/* Select pin and port */
LPC_SYSCON->PINTSEL[index] =
(LPC_SYSCON->PINTSEL[index] & ~PINTSEL_CHANNEL_MASK(channel))
| PINTSEL_CHANNEL(channel, input.data.port, input.data.offset);
/* Configure interrupt as edge sensitive */
LPC_GPIO_INT->ISEL &= ~mask;
/* Configure edge sensitivity options */
if (config->event == PIN_RISING || config->event == PIN_TOGGLE)
LPC_GPIO_INT->SIENR = mask;
if (config->event == PIN_FALLING || config->event == PIN_TOGGLE)
LPC_GPIO_INT->SIENF = mask;
#ifdef CONFIG_PM
/* Interrupt will wake the controller from low-power modes */
LPC_SYSCON->STARTERP0 |= STARTERP0_PINT(interrupt->channel);
#endif
/* Configure interrupt priority, interrupt is disabled by default */
irqSetPriority(calcVector(interrupt->channel), config->priority);
return E_OK;
}
/*----------------------------------------------------------------------------*/
static uint8_t configMatchPin(uint8_t channel, PinNumber key)
{
const struct PinEntry * const pinEntry = pinFind(gpPwmPins, key, channel);
assert(pinEntry);
const struct Pin pin = pinInit(key);
pinOutput(pin, false);
pinSetFunction(pin, UNPACK_FUNCTION(pinEntry->value));
return UNPACK_CHANNEL(pinEntry->value);
}
/*********************************************************************************************************
** Function name: main
** Descriptions: 用户程序入口函数
** input parameters: 无
** output parameters: 无
** Returned value: 无
*********************************************************************************************************/
int main(void)
{
targetInit(); /* 初始化目标板，切勿删除 */
pinInit(); /* 引脚初始化 */
BEEP_INIT();
BEEP_OFF();
while (1) {
BEEP_OFF();
myDelay(200);
BEEP_ON();
myDelay(200);
}
}
/*----------------------------------------------------------------------------*/
int main(void)
{
setupClock();
const struct Pin led = pinInit(LED_PIN);
pinOutput(led, false);
struct Interface * const adc = init(AdcDma, &adcConfig);
assert(adc);
ifSetCallback(adc, onConversionCompleted, adc);
struct Timer * const conversionTimer = init(GpTimer, &timerConfig);
assert(conversionTimer);
/*
* The overflow frequency of the timer should be two times higher
* than that of the hardware events for ADC.
*/
timerSetOverflow(conversionTimer, timerConfig.frequency / (ADC_RATE * 2));
unsigned int iteration = 0;
size_t count;
/* Enqueue buffers */
while (ifGetParam(adc, IF_AVAILABLE, &count) == E_OK && count > 0)
{
const size_t index = iteration++ % BUFFER_COUNT;
ifRead(adc, buffers[index], sizeof(buffers[index]));
}
/* Start conversion */
timerEnable(conversionTimer);
while (1)
{
while (!event)
barrier();
event = false;
pinSet(led);
while (ifGetParam(adc, IF_AVAILABLE, &count) == E_OK && count > 0)
{
const size_t index = iteration++ % BUFFER_COUNT;
ifRead(adc, buffers[index], sizeof(buffers[index]));
}
pinReset(led);
}
return 0;
}
/*----------------------------------------------------------------------------*/
int main(void)
{
const struct Pin led = pinInit(LED_PIN);
pinOutput(led, false);
struct Interface * const flash = init(Flash, 0);
assert(flash);
size_t flashSize, pageSize;
enum Result res;
pinSet(led);
if ((res = ifGetParam(flash, IF_SIZE, &flashSize)) == E_OK)
pinReset(led);
assert(res == E_OK);
pinSet(led);
if ((res = ifGetParam(flash, IF_FLASH_PAGE_SIZE, &pageSize)) == E_OK)
pinReset(led);
assert(res == E_OK);
uint8_t * const buffer = malloc(pageSize);
for (size_t i = 0; i < pageSize; ++i)
buffer[i] = i;
/* Test sector erase */
const size_t address = findNearestSector();
assert(address < flashSize);
pinSet(led);
if ((res = ifSetParam(flash, IF_FLASH_ERASE_SECTOR, &address)) == E_OK)
pinReset(led);
assert(res == E_OK);
pinSet(led);
if ((res = program(flash, buffer, pageSize, address)) == E_OK)
pinReset(led);
assert(res == E_OK);
pinSet(led);
if ((res = verify(flash, buffer, pageSize, address)) == E_OK)
pinReset(led);
assert(res == E_OK);
/* Page erase is not available on some parts */
while (1);
return 0;
}
/*----------------------------------------------------------------------------*/
static void deviceInit(struct DeviceDriver *device, struct Interface *interface,
PinNumber ledNumber, uint16_t address)
{
device->interface = interface;
device->state = DEVICE_IDLE;
device->desiredRate = DEVICE_CLOCK;
device->localAddress = 0;
device->deviceAddress = address;
device->change = false;
static_assert(MEMORY_ADDRESS_SIZE && MEMORY_ADDRESS_SIZE <= 2,
"Incorrect address size");
if (MEMORY_ADDRESS_SIZE == 2)
device->localAddress = toBigEndian16(device->localAddress);
device->led = pinInit(ledNumber);
pinOutput(device->led, false);
}
/*----------------------------------------------------------------------------*/
int main(void)
{
setupClock();
const struct Pin led = pinInit(LED_PIN);
pinOutput(led, true);
struct GpTimerPwmUnit * const pwmUnit = init(GpTimerPwmUnit, &pwmUnitConfig);
assert(pwmUnit);
struct Pwm * const pwmOutput = gpTimerPwmCreate(pwmUnit, OUTPUT_PIN);
assert(pwmOutput);
pwmSetDuration(pwmOutput, pwmGetResolution(pwmOutput) / 2);
struct Timer * const counter = init(GpTimerCounter, &counterConfig);
assert(counter);
struct Timer * const timer = init(GpTimer, &timerConfig);
assert(timer);
timerSetOverflow(timer, 1000);
bool event = false;
timerSetCallback(timer, onTimerOverflow, &event);
timerEnable(counter);
pwmEnable(pwmOutput);
timerEnable(timer);
while (1)
{
while (!event)
barrier();
event = false;
const uint32_t period = timerGetValue(counter);
timerSetValue(counter, 0);
if (period >= 999 && period <= 1001)
pinReset(led);
else
pinSet(led);
}
return 0;
}
void init( int argc, char * argv[] )
{
if(argc > 1)
if(Serial.init_tty(argv[1]) != 0)
return;
if(Serial1.init_tty(LINUX_SERIAL1_TTY) != 0)
return;
if(Serial2.init_tty(LINUX_SERIAL2_TTY) != 0)
return;
sizeof_g_APinDescription = sizeof(g_APinDescription)/sizeof(struct _PinDescription);
pinInit();
sizeof_g_APwmDescription = sizeof(g_APwmDescription)/sizeof(struct _PwmDescription);
pwmInit();
sizeof_g_AdcDescription = sizeof(g_AdcDescription)/sizeof(struct _AdcDescription);
adcInit();
sizeof_g_APinState = sizeof(g_APinState)/sizeof(struct _PinState);
}
/*----------------------------------------------------------------------------*/
int main(void)
{
/* Initialize peripherals */
struct Pin led = pinInit(LED_PIN);
pinOutput(led, false);
struct Timer * const timer = init(SysTickTimer, 0);
assert(timer);
timerSetOverflow(timer, timerGetFrequency(timer) / 2);
timerSetCallback(timer, onTimerOverflow, &led);
/* Initialize Work Queue */
workQueueInit(WORK_QUEUE_SIZE);
/* Start event generation and queue handler */
timerEnable(timer);
workQueueStart(0);
return 0;
}
/*----------------------------------------------------------------------------*/
static void configPins(struct I2sBase *interface,
const struct I2sBaseConfig *config)
{
const pinNumber pinArray[] = {
config->rx.sck, config->rx.ws, config->rx.sda, config->rx.mclk,
config->tx.sck, config->tx.ws, config->tx.sda, config->tx.mclk
};
for (unsigned int index = 0; index < ARRAY_SIZE(pinArray); ++index)
{
if (pinArray[index])
{
const struct PinEntry * const pinEntry = pinFind(i2sPins, pinArray[index],
interface->channel);
assert(pinEntry);
const struct Pin pin = pinInit(pinArray[index]);
pinInput(pin);
pinSetFunction(pin, pinEntry->value);
}
}
}
/*----------------------------------------------------------------------------*/
int main(void)
{
static const uint32_t address = 0;
uint8_t buffer[384];
for (size_t i = 0; i < sizeof(buffer); ++i)
buffer[i] = i;
const struct Pin led = pinInit(LED_PIN);
pinOutput(led, false);
struct Interface * const eeprom = init(Eeprom, 0);
assert(eeprom);
uint32_t size;
enum Result res;
pinSet(led);
if ((res = ifGetParam(eeprom, IF_SIZE, &size)) == E_OK)
pinReset(led);
assert(res == E_OK);
assert(address < size);
pinSet(led);
if ((res = program(eeprom, buffer, sizeof(buffer), address)) == E_OK)
pinReset(led);
assert(res == E_OK);
pinSet(led);
if ((res = verify(eeprom, buffer, sizeof(buffer), address)) == E_OK)
pinReset(led);
assert(res == E_OK);
while (1);
return 0;
}
/*----------------------------------------------------------------------------*/
int main(void)
{
const struct Pin led = pinInit(LED_PIN);
pinOutput(led, true);
struct Timer * const timer = init(GpTimer, &timerConfig);
assert(timer);
timerSetOverflow(timer, 500);
bool event = false;
timerSetCallback(timer, onTimerOverflow, &event);
timerEnable(timer);
while (1)
{
while (!event)
barrier();
event = false;
pinToggle(led);
}
return 0;
}
/*----------------------------------------------------------------------------*/
static void configPins(struct SdmmcBase *interface,
const struct SdmmcBaseConfig *config)
{
const pinNumber pinArray[] = {
config->clk,
config->cmd,
config->dat0,
config->dat1,
config->dat2,
config->dat3
};
bool wide = true;
for (unsigned int index = 0; index < ARRAY_SIZE(pinArray); ++index)
{
if (!pinArray[index])
{
/* First three pins are mandatory */
assert(index >= 3);
wide = false;
continue;
}
const struct PinEntry * const pinEntry = pinFind(sdmmcPins,
pinArray[index], 0);
assert(pinEntry);
const struct Pin pin = pinInit(pinArray[index]);
pinInput(pin);
pinSetFunction(pin, pinEntry->value);
}
interface->wide = wide;
}
.init = oneWireInit,
.deinit = oneWireDeinit,
.callback = oneWireCallback,
.get = oneWireGet,
.set = oneWireSet,
.read = oneWireRead,
.write = oneWireWrite
};
/*----------------------------------------------------------------------------*/
const struct InterfaceClass * const OneWireUart = &oneWireTable;
/*----------------------------------------------------------------------------*/
static void adjustPins(struct OneWireUart *interface __attribute__((unused)),
const struct OneWireUartConfig *config)
{
pinSetType(pinInit(config->tx), PIN_OPENDRAIN);
}
/*----------------------------------------------------------------------------*/
static void beginTransmission(struct OneWireUart *interface)
{
LPC_UART_Type * const reg = interface->base.reg;
uartSetRate((struct UartBase *)interface, interface->resetRate);
interface->state = STATE_RESET;
/* Clear RX FIFO and set trigger level to 1 character */
reg->FCR |= FCR_RX_RESET | FCR_RX_TRIGGER(RX_TRIGGER_LEVEL_1);
reg->THR = 0xF0; /* Execute reset */
}
/*----------------------------------------------------------------------------*/
static void sendWord(struct OneWireUart *interface, uint8_t word)
{
/* Constructor */
MAX3421E::MAX3421E()
{
spi_init();
pinInit();
}
int main(void){
pinInit();
rcInterruptInit();
timerInit();
while(1){
// update loop every 1 ms
if(micros() - loopTimer > LOOPTIME){
loopTimer = micros();
// check the current pulse reading for validity
if(checkPulse(pw)){
lastPw = pw;
}else{
pwGood = 0;
pw = lastPw;
}
// bound the pulse width
if(pw > RCMAX){
pw = RCMAX;
}else if(pw < RCMIN){
pw = RCMIN;
}
// process the pulse width for output
if(pwGood){
rawCmd = mWRADB(pw, rawCmd, RCMIN, RCMAX, RCMID, -MAXPWM, MAXPWM, 0, RCDB, 2);
}
// get direction, 1 is forward
if(rawCmd >= 0){
dir = 1;
}else{
dir = 0;
}
cmd = rawCmd;
// get magnitude of cmd
if(!dir){
cmd = -(cmd);
}
// exponential lookup and limit output
cmd = exp1x[cmd];
if(cmd > MAXPWM){
cmd = MAXPWM;
}
// if failsafe isnt true, send output to motor
if(!failsafe){
if(dir){
OCR1A = cmd;
PORTD |= DIRA1;
PORTD &= ~(DIRA2);
}else{
OCR1A = cmd;
PORTD &= ~(DIRA1);
PORTD |= DIRA2;
}
}else{
// else shut off the pwm
OCR1A = 0;
}
// failsafe check
if(micros() - fsTimer > FSTIME){
fsTimer = micros();
if(pwGood){
PORTD |= (SDPINA | SDPINB);
failsafe = 0;
}else{
// shutdown the gate drivers
PORTD &= ~(SDPINA | SDPINB);
failsafe = 1;
}
pwGood = 0;
}
}
}
}