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ChibiOS
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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@5399 35acf78f-673a-0410-8e92-d51de3d6d3f4

This commit is contained in:
gdisirio 2013-03-10 10:22:17 +00:00
parent 178aeec4b7
commit 70a2d4de7e
1 changed files with 38 additions and 19 deletions
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57
testhal/STM32F4xx/UART/main.c
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@ -21,23 +21,29 @@
#include "ch.h"
#include "hal.h"
static VirtualTimer vt1, vt2;
static VirtualTimer vt3, vt4, vt5;
static void restart(void *p) {
static const uint8_t message[] = "0123456789ABCDEF";
static uint8_t buffer[16];
static void led3off(void *p) {
(void)p;
chSysLockFromIsr();
uartStartSendI(&UARTD2, 14, "Hello World!\r\n");
chSysUnlockFromIsr();
palClearPad(GPIOD, GPIOD_LED3);
}
static void ledoff(void *p) {
static void led4off(void *p) {
(void)p;
palClearPad(GPIOD, GPIOD_LED4);
}
static void led5off(void *p) {
(void)p;
palClearPad(GPIOD, GPIOD_LED5);
}
/*
* This callback is invoked when a transmission buffer has been completely
* read by the driver.
@ -45,7 +51,6 @@ static void ledoff(void *p) {
static void txend1(UARTDriver *uartp) {
(void)uartp;
palSetPad(GPIOD, GPIOD_LED4);
}
/*
@ -54,11 +59,11 @@ static void txend1(UARTDriver *uartp) {
static void txend2(UARTDriver *uartp) {
(void)uartp;
palClearPad(GPIOD, GPIOD_LED4);
palSetPad(GPIOD, GPIOD_LED5);
chSysLockFromIsr();
if (chVTIsArmedI(&vt1))
chVTResetI(&vt1);
chVTSetI(&vt1, MS2ST(5000), restart, NULL);
if (chVTIsArmedI(&vt5))
chVTResetI(&vt5);
chVTSetI(&vt5, MS2ST(200), led5off, NULL);
chSysUnlockFromIsr();
}
@ -83,9 +88,9 @@ static void rxchar(UARTDriver *uartp, uint16_t c) {
/* Flashing the LED each time a character is received.*/
palSetPad(GPIOD, GPIOD_LED4);
chSysLockFromIsr();
if (chVTIsArmedI(&vt2))
chVTResetI(&vt2);
chVTSetI(&vt2, MS2ST(200), ledoff, NULL);
if (chVTIsArmedI(&vt4))
chVTResetI(&vt4);
chVTSetI(&vt4, MS2ST(200), led4off, NULL);
chSysUnlockFromIsr();
}
@ -95,6 +100,14 @@ static void rxchar(UARTDriver *uartp, uint16_t c) {
static void rxend(UARTDriver *uartp) {
(void)uartp;
/* Flashing the LED each time a character is received.*/
palSetPad(GPIOD, GPIOD_LED3);
chSysLockFromIsr();
if (chVTIsArmedI(&vt3))
chVTResetI(&vt3);
chVTSetI(&vt3, MS2ST(200), led3off, NULL);
chSysUnlockFromIsr();
}
/*
@ -134,15 +147,21 @@ int main(void) {
palSetPadMode(GPIOA, 2, PAL_MODE_ALTERNATE(7));
palSetPadMode(GPIOA, 3, PAL_MODE_ALTERNATE(7));
/*
* Starts the transmission, it will be handled entirely in background.
*/
uartStartSend(&UARTD2, 13, "Starting...\r\n");
/*
* Normal main() thread activity, in this demo it does nothing.
*/
while (TRUE) {
if (palReadPad(GPIOA, GPIOA_BUTTON)) {
/*
* Starts both a transmission and a receive operations, both will be
* handled entirely in background.
*/
uartStopReceive(&UARTD2);
uartStopSend(&UARTD2);
uartStartReceive(&UARTD2, 16, buffer);
uartStartSend(&UARTD2, 16, message);
}
chThdSleepMilliseconds(500);
}
}