diff options
Diffstat (limited to 'libcpu')
| -rw-r--r-- | libcpu/arm/lm3s/serial.c | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/libcpu/arm/lm3s/serial.c b/libcpu/arm/lm3s/serial.c index 79cb0ff4b4..4dd2bf306d 100644 --- a/libcpu/arm/lm3s/serial.c +++ b/libcpu/arm/lm3s/serial.c @@ -15,18 +15,18 @@ #include <rthw.h> #include <rtthread.h> -#include <inc/hw_types.h>
+#include <inc/hw_types.h> #include <inc/hw_memmap.h> -#include <inc/hw_uart.h>
-#include <inc/hw_ints.h>
-#include <driverlib/gpio.h>
-#include <driverlib/sysctl.h>
-#include <driverlib/interrupt.h>
+#include <inc/hw_uart.h> +#include <inc/hw_ints.h> +#include <driverlib/gpio.h> +#include <driverlib/sysctl.h> +#include <driverlib/interrupt.h> #include <uart.h> -#include "board.h"
+#include "board.h" -extern void rt_hw_interrupt_thread_switch(void);
+extern void rt_hw_interrupt_thread_switch(void); #define RT_UART_RX_BUFFER_SIZE 64 @@ -59,7 +59,7 @@ void rt_hw_uart_isr(struct rt_lm3s_serial* serial) rt_uint32_t status; device = (struct rt_device*)serial; - UARTIntStatus(serial->hw_base, true); + status = UARTIntStatus(serial->hw_base, true); /* clear interrupt status */ UARTIntClear(serial->hw_base, status); @@ -309,20 +309,20 @@ void rt_hw_serial_init(void) serial->baudrate = 115200; rt_memset(serial->rx_buffer, 0, sizeof(serial->rx_buffer)); - serial->read_index = serial->save_index = 0;
+ serial->read_index = serial->save_index = 0; /* enable UART0 clock */ - SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
- SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
-
+ SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0); + SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA); + /* set UART0 pinmux */ - GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
+ GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1); + + /* Configure the UART for 115,200, 8-N-1 operation. */ + UARTConfigSetExpClk(UART0_BASE, SysCtlClockGet(), serial->baudrate, + (UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE | + UART_CONFIG_PAR_NONE)); - /* Configure the UART for 115,200, 8-N-1 operation. */
- UARTConfigSetExpClk(UART0_BASE, SysCtlClockGet(), serial->baudrate,
- (UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE |
- UART_CONFIG_PAR_NONE));
-
serial->parent.init = rt_serial_init; serial->parent.open = rt_serial_open; serial->parent.close = rt_serial_close; |