Hi there,
I want to using uart sends character to the pc as following
/***************************************************************************
* Defines
**************************************************************************/
#define DEMO_UART UART1
#define BOARD_DEBUG_UART_BAUDRATE 115200
/***************************************************************************
* Variables
**************************************************************************/
uint8_t txbuff[] = "Uart polling example\r\nBoard will send back received characters\r\n";
uint8_t rxbuff[20] = {0};
/***************************************************************************
* Code
**************************************************************************/
int main(void){
uint8_t ch;
uart_config_t config;
/* Init board hardware*/
BOARD_InitPins();
BOARD_BootClockRUN();
/*
* config.baudRate_Bps = 115200U;
* config.parityMode = kUART_ParityDisabled;
* config.stopBitCount = kUART_OneStopBit;
* config.txFifoWatermark = 0;
* config.rxFifoWatermark = 1;
*/
UART_Init(DEMO_UART, &config, CLOCK_GetFreq(kCLOCK_CoreSysClk));
UART_WriteBlocking(DEMO_UART, txbuff, sizeof(txbuff) - 1);
while(1)
{
UART_ReadBlocking(DEMO_UART, &ch, 1);
UART_WriteBlocking(DEMO_UART, &ch, 1);
}
}
void BOARD_InitPins(void){
CLOCK_EnableClock(kCLOCK_PortA);
CLOCK_EnableClock(kCLOCK_PortB);
CLOCK_EnableClock(kCLOCK_PortC);
CLOCK_EnableClock(kCLOCK_PortD);
CLOCK_EnableClock(kCLOCK_PortE);
PORT_SetPinMux(PORTC, 3U, kPORT_MuxAlt3);
PORT_SetPinMux(PORTC, 4U, kPORT_MuxAlt3);
}
kCLOCK_CoreSysClk @40MHz
kCLOCK_BusClk @40MHz
FEE mode
void UART_GetDefaultConfig(uart_config_t *config)
{
assert(config);
config -> baudRate_Bps = 115200U;
config -> parityMode = kUART_ParityDisabled;
#if defined(FSL_FEATURE_UART_HAS_STOP_BIT_CONFIG_SUPPORT) && FSL_FEATURE_UART_HAS_STOP_BIT_CONFIG_SUPPORT
config -> stopBitCount = kUART_OneStopBit;
#endif
#if defined(FSL_FEATURE_UART_HAS_FIFO) && FSL_FEATURE_UART_HAS_FIFO
config -> txFifoWatermark = 0;
config -> rxFifoWatermark = 1;
#endif
config -> enableTx = false;
config -> enableRx = false;
}
but when using FRDM-K22F runs uart_polling_transfer.c but SYSTEM_CLOCK @40MHz, BUS_CLOCK @40MHz, also in FEE mode, it runs good.
How can i fix the problem, the mk02 also can output the right message?
Thanks in advance!
-Jack
