Hello:
I have the CC2540_MINIDK kit, and want to Tx/Rx data using UART DMA in Port0 (P0.2 and P0.3). Using the configuration settings, I able to DMA Rx bytes correctly. But when I trying to Tx bytes by calling HalUARTWrite(...), the DMA UART Tx doesn't send out bytes. I put the digital scope on P0.2 and P0.3 and don't see Tx occurs.
Can you help me to configure the CC2540_MINIDK GPIO to have the UART DMA Tx output correctly?
Thank You
Mike
------------- My UART Configuration ----------------
INT_HEAP_LEN=2900
HALNODEBUG
OSAL_CBTIMER_NUM_TASKS=1
HAL_AES_DMA=FALSE
HAL_DMA=TRUE
xPLUS_BROADCASTER
HAL_LCD=FALSE
HAL_LED=TRUE
HAL_UART=TRUE
CC2540_MINIDK=TRUE
DEBUG_TURN_ON
POWER_SAVING
#define SBP_UART_PORT HAL_UART_PORT_0
//#define SBP_UART_FC TRUE
#define SBP_UART_FC FALSE
#define SBP_UART_FC_THRESHOLD 48
#define SBP_UART_RX_BUF_SIZE 128
#define SBP_UART_TX_BUF_SIZE 128
#define SBP_UART_IDLE_TIMEOUT 6
#define SBP_UART_INT_ENABLE TRUE
//#define SBP_UART_BR HAL_UART_BR_115200
//#define SBP_UART_BR HAL_UART_BR_57600
//#define SBP_UART_BR HAL_UART_BR_38400
//#define SBP_UART_BR HAL_UART_BR_19200
#define SBP_UART_BR HAL_UART_BR_9600
void serialAppInitTransport( )
{
halUARTCfg_t uartConfig;
// Initialize UART variables
g_pktIndex = 0;
// configure UART
uartConfig.configured = TRUE;
uartConfig.baudRate = SBP_UART_BR;
uartConfig.flowControl = SBP_UART_FC;
uartConfig.flowControlThreshold = SBP_UART_FC_THRESHOLD;
uartConfig.rx.maxBufSize = SBP_UART_RX_BUF_SIZE;
uartConfig.tx.maxBufSize = SBP_UART_TX_BUF_SIZE;
uartConfig.idleTimeout = SBP_UART_IDLE_TIMEOUT;
uartConfig.intEnable = SBP_UART_INT_ENABLE;
uartConfig.callBackFunc = funcSerialPacketRx;
// start UART
// Note: Assumes no issue opening UART port.
(void)HalUARTOpen( SBP_UART_PORT, &uartConfig );
return;
}