I spent days combing through old posts regarding HAL_UART with DMA support and I've finally reached a dead end. I'd really appreciate it if someone could take a look at my brief code and see if there is anything unusual about what I'm doing? Thanks!
I've taken the keyfob code and commented out everything just to get uart communications working. I've got a scope hooked to P0.4 (pin 15) and P1.5 (pin 5)
My preprocessor definitions are as follows:
HAL_UART
HAL_UART_DMA=1
HAL_UART_ISR=0
HAL_DMA=TRUE
and my main function looks like this:
int main(void){
P0SEL = 0x30;
P1SEL = 0x30;
P2SEL = 0; // Configure Port 2 as GPIO
P0DIR = 0xEF; // Port 0 pins P0.0 and P0.1 as input (buttons),
// all others (P0.2-P0.7) as output
P1DIR = 0xEF;
P2DIR = 0x1F;
P0 = 0x03; // All pins on port 0 to low except for P0.0 and P0.1 (buttons)
P1 = 0; // All pins on port 1 to low
P2 = 0; // All pins on port 2 to low
halUARTCfg_t uartConfig;
// configure UART
uartConfig.configured = TRUE;
uartConfig.baudRate = HAL_UART_BR_9600;
uartConfig.flowControl = FALSE;
uartConfig.flowControlThreshold = 48;
uartConfig.rx.maxBufSize = 128;
uartConfig.tx.maxBufSize = 1287;
uartConfig.idleTimeout = 6;
uartConfig.intEnable = TRUE;
uartConfig.callBackFunc = NULL; //sbpSerialPacketParser;
PERCFG |= 0x01;
HalUARTInit();
HalUARTOpen( HAL_UART_PORT_0, &uartConfig );
while(1){
//constantly write
HalUARTWrite (HAL_UART_PORT_0, 0x55, 1);
}
} //end main
