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add freemodbus slave contorl pin config in Kconfig

This commit is contained in:
liquanqing 2018-06-25 14:15:32 +08:00
parent d188fa496c
commit 125235c61c
3 changed files with 19 additions and 7 deletions
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10
components/net/freemodbus/Kconfig
View File

@ -12,6 +12,16 @@ config RT_USING_MODBUS
config RT_MODBUS_SLAVE_RTU
bool "RTU slave mode"
default n
if RT_MODBUS_SLAVE_RTU
config RT_MODBUS_SLAVE_USE_CONTROL_PIN
bool "Use Contorl Pin"
default n
if RT_MODBUS_SLAVE_USE_CONTROL_PIN
config MODBUS_SLAVE_RT_CONTROL_PIN_INDEX
int "pin index for RS485 TX/RX select"
default 10
endif
endif
endif
endmenu

13
components/net/freemodbus/port/portserial.c
View File

@ -56,8 +56,9 @@ BOOL xMBPortSerialInit(UCHAR ucPORT, ULONG ulBaudRate, UCHAR ucDataBits,
* set 485 mode receive and transmit control IO
* @note MODBUS_SLAVE_RT_CONTROL_PIN_INDEX need be defined by user
*/
//rt_pin_mode(MODBUS_SLAVE_RT_CONTROL_PIN_INDEX, PIN_MODE_OUTPUT);
#if defined(RT_MODBUS_SLAVE_USE_CONTROL_PIN)
rt_pin_mode(MODBUS_SLAVE_RT_CONTROL_PIN_INDEX, PIN_MODE_OUTPUT);
#endif
/* set serial name */
if (ucPORT == 1) {
#if defined(RT_USING_UART1) || defined(RT_USING_REMAP_UART1)
@ -127,12 +128,16 @@ void vMBPortSerialEnable(BOOL xRxEnable, BOOL xTxEnable)
/* enable RX interrupt */
serial->ops->control(serial, RT_DEVICE_CTRL_SET_INT, (void *)RT_DEVICE_FLAG_INT_RX);
/* switch 485 to receive mode */
//rt_pin_write(MODBUS_SLAVE_RT_CONTROL_PIN_INDEX, PIN_LOW);
#if defined(RT_MODBUS_SLAVE_USE_CONTROL_PIN)
rt_pin_write(MODBUS_SLAVE_RT_CONTROL_PIN_INDEX, PIN_LOW);
#endif
}
else
{
/* switch 485 to transmit mode */
//rt_pin_write(MODBUS_SLAVE_RT_CONTROL_PIN_INDEX, PIN_HIGH);
#if defined(RT_MODBUS_SLAVE_USE_CONTROL_PIN)
rt_pin_write(MODBUS_SLAVE_RT_CONTROL_PIN_INDEX, PIN_HIGH);
#endif
/* disable RX interrupt */
serial->ops->control(serial, RT_DEVICE_CTRL_CLR_INT, (void *)RT_DEVICE_FLAG_INT_RX);
}

3
components/net/freemodbus/port/user_mb_app.h
View File

@ -25,9 +25,6 @@
/* salve mode: discrete's all address */
#define S_DI_RESERVE 0
/* slave mode: holding register"s startup address */
#define S_SYSTEM_START_ADDR 0x003A
#define S_SYSTEM_SLAVE_ID_ADDR 0x0040
#define S_SYSTEM_KEEP_TEMP 0x0009
/* -----------------------Master Defines -------------------------------------*/
#define M_DISCRETE_INPUT_START 1