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Cmsis Usart Problem in using on LPC1788

Abaspoor

Hi,

im new on using cmsis 

i have a self developed board based on lpc1788 and i using keil for programing and development

i wrote this program as simple example for usart in lpc1788

but in debug session it return the (  // USART is not configured (mode not selected) ))

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#include <UART_LPC17xx.h>
void usart1init(void);
static ARM_USART_SignalEvent_t *Uhandler;
int main(void){
usart1init();
while(1);
}
void usart1init(void){
ARM_DRIVER_USART MySerial = Driver_USART1;
char sir[5] = "leg";
MySerial.Initialize(*Uhandler);
MySerial.PowerControl(ARM_POWER_FULL);
MySerial.Send(&sir[0],sizeof(sir));
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

can u guide me ? where am i wrong on this code

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