what is the matter with the pointer?

hello all! *.h void Baudrate(unsigned int *ptr,unsigned char Uart_num) large; *.c void main(void) { ... *ptr = 1152; Baudrate(ptr,1); ... } In the routine ,the var Baud( Baud = *ptr;...
what is the matter with the pointer?

hello all! *.h void Baudrate(unsigned int *ptr,unsigned char Uart_num) large; *.c void main(void) { ... *ptr = 1152; Baudrate(ptr,1); ... } In the routine ,the var Baud( Baud = *ptr;...
Some matter with my "printf()",what can i do ?

When program running to "printf()",the PC always stop at C:0X0A2A 3099FD JNB TI(0X98.1),C:0A2A I try adding some word as following : ES = 0; //UART INT is Enable before TI = 1; printf("%bd",3);...
Some matter with my "printf()",what can i do ?

When program running to "printf()",the PC always stop at C:0X0A2A 3099FD JNB TI(0X98.1),C:0A2A I try adding some word as following : ES = 0; //UART INT is Enable before TI = 1; printf("%bd",3);...
GSM modem returns rubbish symbols no matter the command sent

Good day. I have a WAVECOM 16 port GSM modem. I have been able to connect to the device through a serial connection using PUTTY. No matter what command I send I get back random rubbish responses...