/*---------------------------------------------------------------------------------------------------------*/
void RS485_9bitModeMaster()
{
volatile int32_t i32;
uint8_t g_u8SendDataGroup1[10] = {0};
uint8_t g_u8SendDataGroup2[10] = {0};
uint8_t g_u8SendDataGroup3[10] = {0};
uint8_t g_u8SendDataGroup4[10] = {0};
printf("\n\n");
printf("+-----------------------------------------------------------+\n");
printf("| RS485 9-bit Master Test |\n");
printf("+-----------------------------------------------------------+\n");
printf("| The function will send different address with 10 data |\n");
printf("| bytes to test RS485 9-bit mode. Please connect TX/RX to |\n");
printf("| another board and wait its ready to receive. |\n");
printf("| Press any key to start... |\n");
printf("+-----------------------------------------------------------+\n\n");
GetChar();
/* Set RS485-Master as AUD mode */
/* Enable AUD mode to HW control RTS pin automatically */
/* You also can use GPIO to control RTS pin for replacing AUD mode*/
UART_SelectRS485Mode(UART1, UART_ALT_CSR_RS485_AUD_Msk, 0);
/* Set RTS pin active level as high level active */
UART1->MCR &= ~UART_MCR_LEV_RTS_Msk;
UART1->MCR |= UART_RTS_IS_HIGH_LEV_ACTIVE;
/* Set TX delay time */
UART1->TOR = 0x2000;
/* Prepare Data to transmit*/
for(i32 = 0; i32 < 10; i32++)
{
g_u8SendDataGroup1[i32] = i32;
g_u8SendDataGroup2[i32] = i32 + 10;
g_u8SendDataGroup3[i32] = i32 + 20;
g_u8SendDataGroup4[i32] = i32 + 30;
}
/* Send different address and data for test */
printf("Send Address %x and data 0~9\n", MATCH_ADDRSS1);
RS485_SendAddressByte(MATCH_ADDRSS1);
RS485_SendDataByte(g_u8SendDataGroup1, 10);
printf("Send Address %x and data 10~19\n", UNMATCH_ADDRSS1);
RS485_SendAddressByte(UNMATCH_ADDRSS1);
RS485_SendDataByte(g_u8SendDataGroup2, 10);
printf("Send Address %x and data 20~29\n", MATCH_ADDRSS2);
RS485_SendAddressByte(MATCH_ADDRSS2);
RS485_SendDataByte(g_u8SendDataGroup3, 10);
printf("Send Address %x and data 30~39\n", UNMATCH_ADDRSS2);
RS485_SendAddressByte(UNMATCH_ADDRSS2);
RS485_SendDataByte(g_u8SendDataGroup4, 10);
printf("Transfer Done\n");
}
/*---------------------------------------------------------------------------------------------------------*/
void RS485_9bitModeMaster()
{
int32_t i32;
uint8_t g_u8SendDataGroup1[10] ={0};
uint8_t g_u8SendDataGroup2[10] ={0};
uint8_t g_u8SendDataGroup3[10] ={0};
uint8_t g_u8SendDataGroup4[10] ={0};
printf("\n\n");
printf("+-----------------------------------------------------------+\n");
printf("| RS485 9-bit Master Test |\n");
printf("+-----------------------------------------------------------+\n");
printf("| The functin will send different address with 10d ata bytes|\n");
printf("| to test RS485 9-bit mode. Please connect TX/RX to another |\n");
printf("| board and wait its ready to receive. |\n");
printf("| Press any key to start... |\n");
printf("+-----------------------------------------------------------+\n\n");
GetChar();
/* Set RS485-Master as AUD mode*/
_UART_SEL_FUNC(UART1,UART_FUNC_SEL_RS485);
UART1->ALT_CSR = UART_ALT_CSR_RS485_AUD_Msk; /* Enable AUD to HW control RTS pin automatically */
/* You alse can use GPIO to control RTS pin for replacing AUD mode*/
/* Prepare Data to transmit*/
for(i32=0;i32<10;i32++)
{
g_u8SendDataGroup1[i32] = i32;
g_u8SendDataGroup2[i32] = i32+10;
g_u8SendDataGroup3[i32] = i32+20;
g_u8SendDataGroup4[i32] = i32+30;
}
/* Send For different Address and data for test */
printf("Send Address %x and data 0~9\n",MATCH_ADDRSS1);
RS485_SendAddressByte( MATCH_ADDRSS1 );
RS485_SendDataByte(g_u8SendDataGroup1,10);
printf("Send Address %x and data 10~19\n",UNMATCH_ADDRSS1);
RS485_SendAddressByte( UNMATCH_ADDRSS1 );
RS485_SendDataByte(g_u8SendDataGroup2,10);
printf("Send Address %x and data 20~29\n",MATCH_ADDRSS2);
RS485_SendAddressByte( MATCH_ADDRSS2 );
RS485_SendDataByte(g_u8SendDataGroup3,10);
printf("Send Address %x and data 30~39\n",UNMATCH_ADDRSS2);
RS485_SendAddressByte( UNMATCH_ADDRSS2 );
RS485_SendDataByte(g_u8SendDataGroup4,10);
printf("Transfer Done\n");
}
/*---------------------------------------------------------------------------------------------------------*/
void RS485_9bitModeMaster()
{
int32_t i32;
uint8_t g_u8SendDataGroup1[10] = {0};
uint8_t g_u8SendDataGroup2[10] = {0};
uint8_t g_u8SendDataGroup3[10] = {0};
uint8_t g_u8SendDataGroup4[10] = {0};
printf("\n");
printf("+-----------------------------------------------------------+\n");
printf("| Pin Configure |\n");
printf("+-----------------------------------------------------------+\n");
printf("| _______ _______ |\n");
printf("| | | | | |\n");
printf("| |Master |---TXD1(P1.3) <====> RXD1(P1.2)---| Slave | |\n");
printf("| | |---RTS1(P0.1) <====> RTS1(P0.1)---| | |\n");
printf("| |_______| |_______| |\n");
printf("| |\n");
printf("+-----------------------------------------------------------+\n");
/*
The sample code is used to test RS485 9-bit mode and needs
two Module test board to complete the test.
Master:
1.Set AUD mode and HW will control RTS pin. LEV_RTS is set to '0'.
2.Master will send four different address with 10 bytes data to test Slave.
3.Address bytes : the parity bit should be '1'. (Set UA_LCR = 0x2B)
4.Data bytes : the parity bit should be '0'. (Set UA_LCR = 0x3B)
5.RTS pin is low in idle state. When master is sending,
RTS pin will be pull high.
Slave:
1.Set AAD and AUD mode firstly. LEV_RTS is set to '0'.
2.The received byte, parity bit is '1' , is considered "ADDRESS".
3.The received byte, parity bit is '0' , is considered "DATA". (Default)
4.AAD: The slave will ignore any data until ADDRESS match ADDR_MATCH value.
When RLS and RDA interrupt is happened,it means the ADDRESS is received.
Check if RS485_ADD_DETF is set and read UA_RBR to clear ADDRESS stored in rx_fifo.
NMM: The slave will ignore data byte until disable RX_DIS.
When RLS and RDA interrupt is happened,it means the ADDRESS is received.
Check the ADDRESS is match or not by user in UART_IRQHandler.
If the ADDRESS is match,clear RX_DIS bit to receive data byte.
If the ADDRESS is not match,set RX_DIS bit to avoid data byte stored in FIFO.
*/
printf("\n");
printf("+-----------------------------------------------------------+\n");
printf("| RS485 Function Test (9-bit Master) |\n");
printf("+-----------------------------------------------------------+\n");
printf("| The function will send different address with 10 data bytes|\n");
printf("| to test RS485 9-bit mode. Please connect TX/RX to another |\n");
printf("| board and wait its ready to receive. |\n");
printf("| Press any key to start... |\n");
printf("+-----------------------------------------------------------+\n\n");
GetChar();
/* Select UART RS485 function mode */
UART1->FUN_SEL = UART_FUNC_SEL_RS485;
/* Set RS485-Master as AUD mode */
/* Enable AUD mode to HW control RTS pin automatically */
/* You also can use GPIO to control RTS pin for replacing AUD mode*/
UART1->ALT_CSR = UART_ALT_CSR_RS485_AUD_Msk;
/* Set RTS pin active level as low level active */
UART1->MCR = UART1->MCR & (~UART_MCR_LEV_RTS_Msk) | UART_RTS_IS_LOW_LEV_ACTIVE;
/* Prepare Data to transmit*/
for(i32 = 0; i32 < 10; i32++)
{
g_u8SendDataGroup1[i32] = i32;
g_u8SendDataGroup2[i32] = i32 + 10;
g_u8SendDataGroup3[i32] = i32 + 20;
g_u8SendDataGroup4[i32] = i32 + 30;
}
/* Send For different Address and data for test */
printf("Send Address %x and data 0~9\n", MATCH_ADDRSS1);
RS485_SendAddressByte(MATCH_ADDRSS1);
RS485_SendDataByte(g_u8SendDataGroup1, 10);
printf("Send Address %x and data 10~19\n", UNMATCH_ADDRSS1);
RS485_SendAddressByte(UNMATCH_ADDRSS1);
RS485_SendDataByte(g_u8SendDataGroup2, 10);
printf("Send Address %x and data 20~29\n", MATCH_ADDRSS2);
RS485_SendAddressByte(MATCH_ADDRSS2);
RS485_SendDataByte(g_u8SendDataGroup3, 10);
printf("Send Address %x and data 30~39\n", UNMATCH_ADDRSS2);
RS485_SendAddressByte(UNMATCH_ADDRSS2);
RS485_SendDataByte(g_u8SendDataGroup4, 10);
printf("\nTransfer Done\n");
}