Hi everyone,
I am having problems stopping a flow from UART2 to UART1. I have created a command to start the flow “AT+U2=1” but I can’t stop the flow with “AT+U2=0”. The only way that I can stop it is when I issue the command “AT+WOPEN=0”.
When I use the command “AT+U2=1” it returns the following output on the Terminal Emulator:
at+u2=1
OK
(AtUart2LoopBackCmdHandler) Enter.
AT+WMFM=0,0,2: Start
AT+WMFM=0,0,2:
OK
AT+WMFM=0,1,2: Start
AT+WMFM=0,1,2
OK
AT+IPR=4800: Start
AT+IPR=4800:
OK
Before: adl_fcmIsAvailable(ADL_PORT_UART1) == TRUE
Before: adl_fcmIsAvailable(ADL_PORT_UART2) == TRUE
adl_fcmSubscribe(ADL_PORT_UART1) success. returnValue = 0
adl_fcmSubscribe(ADL_PORT_UART2) success. returnValue = 1
After: adl_fcmIsAvailable(ADL_PORT_UART1) == TRUE
After: adl_fcmIsAvailable(ADL_PORT_UART2) == TRUE
AT+ICF=3,4: Start
AT+IFC=2,2: Start
AT&W: Start
(Uart1ControlHandler) Handle: ADL_FCM_EVENT_FLOW_OPENNED
(Uart1ControlHandler) adl_fcmSwitchV24State(ADL_FCE_V24_STATE_DATA) success
(Uart2ControlHandler) Handle: ADL_FCM_EVENT_FLOW_OPENNED
(Uart2ControlHandler) adl_fcmSwitchV24State(ADL_FCE_V24_STATE_DATA) success
(Uart1ControlHandler) Handle: ADL_FCM_V24_DATA_MODE
(Uart2ControlHandler) Handle: ADL_FCM_V24_DATA_MODE
(Uart2DataHandler) adl_fcmSendData() failed. returnValue = -21
(Uart1ControlHandler) Handle: ADL_FCM_EVENT_RESUME
I then issue the “AT+U2=0” and I recieve the following TE Output.
at+u2=0
OK
(AtUart2LoopBackCmdHandler) Enter.
(AtUart2LoopbackCmdHandler) adl_fcmUnsubscribe(uart1FcmHandle) failed. returnValue = -8
(AtUart2LoopbackCmdHandler) adl_fcmUnsubscribe(uart2FcmHandle) failed. returnValue = -8
at+wopen=0
I have looked at the list of Errors at the end of the AUG_OpenAT_ADL_Development_Guide-004.pdf document and it doesn’t list the error for -8.
My code I have copied from this forum (See http://www.wavecom.com/modules/movie/scenes/forums/viewtopic.php?f=5&t=733) and edited for my needs :
bool HandleWmfmSetBaudRate(adl_atResponse_t *response){
bool isFcmAvailable;
s8 returnValue;
char string[100];
SEND_TRACE("AT+IPR=4800: ");
SEND_TRACE(response->StrData);
/* check UART1 is available */
isFcmAvailable = adl_fcmIsAvailable(ADL_PORT_UART1);
if (isFcmAvailable){
SEND_TRACE("Before: adl_fcmIsAvailable(ADL_PORT_UART1) == TRUE\r\n");
} else {
SEND_TRACE("Before: adl_fcmIsAvailable(ADL_PORT_UART1) == FALSE\r\n");
}
/* check UART2 is available */
isFcmAvailable = adl_fcmIsAvailable(ADL_PORT_UART2);
if (isFcmAvailable){
SEND_TRACE("Before: adl_fcmIsAvailable(ADL_PORT_UART2) == TRUE\r\n");
} else {
SEND_TRACE("Before: adl_fcmIsAvailable(ADL_PORT_UART2) == FALSE\r\n");
}
/* subscribing to UART1 for flow control */
uart1FcmHandle = adl_fcmSubscribe(ADL_PORT_UART1, Uart1ControlHandler, Uart1DataHandler);
if (uart1FcmHandle < 0){
wm_sprintf(string, "ERROR: adl_fcmSubscribe(ADL_PORT_UART1) failed. returnValue = %d\r\n", uart1FcmHandle);
SEND_TRACE(string);
} else {
wm_sprintf(string, "adl_fcmSubscribe(ADL_PORT_UART1) success. returnValue = %d\r\n", uart1FcmHandle);
SEND_TRACE(string);
}
/* subscribing to UART2 for flow control */
uart2FcmHandle = adl_fcmSubscribe(ADL_PORT_UART2, Uart2ControlHandler, Uart2DataHandler);
if (uart2FcmHandle < 0){
wm_sprintf(string, "ERROR: adl_fcmSubscribe(ADL_PORT_UART2) failed. returnValue = %d\r\n", uart2FcmHandle);
SEND_TRACE(string);
} else {
wm_sprintf(string, "adl_fcmSubscribe(ADL_PORT_UART2) success. returnValue = %d\r\n", uart2FcmHandle);
SEND_TRACE(string);
}
/* check UART1 is available */
isFcmAvailable = adl_fcmIsAvailable(ADL_PORT_UART1);
if (isFcmAvailable){
SEND_TRACE("After: adl_fcmIsAvailable(ADL_PORT_UART1) == TRUE\r\n");
} else {
SEND_TRACE("After: adl_fcmIsAvailable(ADL_PORT_UART1) == FALSE\r\n");
}
/* check UART2 is available */
isFcmAvailable = adl_fcmIsAvailable(ADL_PORT_UART2);
if (isFcmAvailable){
SEND_TRACE("After: adl_fcmIsAvailable(ADL_PORT_UART2) == TRUE\r\n");
} else {
SEND_TRACE("After: adl_fcmIsAvailable(ADL_PORT_UART2) == FALSE\r\n");
}
/* set character framing */
SEND_TRACE("AT+ICF=3,4: Start\r\n");
returnValue = adl_atCmdCreate("AT+ICF=3,4", TRUE, (adl_atRspHandler_t)NULL, NULL);
if (returnValue != OK){
wm_sprintf(string, "ERROR: adl_atCmdCreate(AT+ICF=3,4) returned %d\r\n", returnValue);
SEND_TRACE(string);
}
/* set flow control */
SEND_TRACE("AT+IFC=2,2: Start\r\n");
returnValue = adl_atCmdCreate("AT+IFC=2,2", TRUE, (adl_atRspHandler_t)NULL, NULL);
if (returnValue != OK){
wm_sprintf(string, "ERROR: adl_atCmdCreate(AT+IFC=2,2) returned %d\r\n", returnValue);
SEND_TRACE(string);
}
/* write settings to ROM */
SEND_TRACE("AT&W: Start\r\n");
returnValue = adl_atCmdCreate("AT&W", TRUE, (adl_atRspHandler_t)NULL, NULL);
if (returnValue != OK){
wm_sprintf(string, "ERROR: adl_atCmdCreate(AT&W) returned %d\r\n", returnValue);
SEND_TRACE(string);
}
return FALSE;
}
void WorkAroundTitmerHandler(u8 whatever){
s8 returnValue;
char string[100];
/* set baud rate */
SEND_TRACE("AT+IPR=4800: Start\r\n");
returnValue = adl_atCmdCreate("AT+IPR=4800", ADL_AT_PORT_TYPE(ADL_PORT_UART2, FALSE), HandleWmfmSetBaudRate, "*", NULL);
if (returnValue != OK){
wm_sprintf(string, "ERROR: adl_atCmdCreate(AT+IPR=4800) returned %d\r\n", returnValue);
SEND_TRACE(string);
}
}
#define COMMAND_BUG 1
bool HandleWmfmUart2Enable(adl_atResponse_t *response){
SEND_TRACE("AT+WMFM=0,1,2");
SEND_TRACE(response->StrData);
#if COMMAND_BUG
adl_tmrSubscribe(FALSE, 1, ADL_TMR_TYPE_100MS, WorkAroundTitmerHandler);
#else
workAroundTitmerHandler(0);
#endif
return FALSE;
}
bool HandleWmfmUart2Disable(adl_atResponse_t *response){
s8 returnValue;
char string[100];
SEND_TRACE("AT+WMFM=0,0,2:");
SEND_TRACE(response->StrData);;
/* Open UART2 */
SEND_TRACE("AT+WMFM=0,1,2: Start\r\n");
returnValue = adl_atCmdCreate("AT+WMFM=0,1,2", FALSE, HandleWmfmUart2Enable, "*", NULL);
if (returnValue != OK){
wm_sprintf(string, "ERROR: adl_atCmdCreate(AT+WMFM=0,1,2) returned %d\r\n", returnValue);
SEND_TRACE(string);
}
return FALSE;
}
void AtUart2LoopBackCmdHandler(adl_atCmdPreParser_t *parser){
s8 returnValue;
char *parameter;
int startStop;
char string[100];
SEND_TRACE("(AtUart2LoopBackCmdHandler) Enter.\r\n");
/* Extracting Parameter */
parameter = wm_lstGetItem(parser->ParaList, 0);
startStop = atoi(parameter);
if (startStop == 1){ /* i.e. 'AT+U2=1' */
enableU2 = TRUE;
if (uart1FcmHandle != -1 || uart2FcmHandle != -1){
SEND_TRACE("Application Active: UART1 or UART2 still has an active handle.\r\n");
return;
}
/* closing UART2 */
SEND_TRACE("AT+WMFM=0,0,2: Start\r\n");
adl_atCmdCreate("AT+WMFM=0,0,2", FALSE, HandleWmfmUart2Disable, "*", NULL);
} else if (startStop == 0){ /* i.e. 'AT+U2=0' */
/* Disable Timer1 */
/* adl_tmrUnSubscribe(tmr1, mcs_TimerHandler_1,ADL_TMR_TYPE_100MS);
SEND_TRACE("Timer1 Disabled\r\n"); */
if (uart1FcmHandle > -1) {
returnValue = adl_fcmUnsubscribe(uart1FcmHandle);
if (returnValue != OK){
wm_sprintf(string, "(AtUart2LoopbackCmdHandler) adl_fcmUnsubscribe(uart1FcmHandle) failed. returnValue = %d\r\n", returnValue);
SEND_TRACE(string);
} else {
enableU2 = FALSE;
uart1FcmHandle = -1;
}
} else {
SEND_TRACE("UART1 Already Unsubscribed.\r\n");
}
if (uart2FcmHandle > -1) {
returnValue = adl_fcmUnsubscribe(uart2FcmHandle);
if (returnValue != OK){
wm_sprintf(string, "(AtUart2LoopbackCmdHandler) adl_fcmUnsubscribe(uart2FcmHandle) failed. returnValue = %d\r\n", returnValue);
SEND_TRACE(string);
} else {
enableU2 = FALSE;
uart2FcmHandle = -1;
}
} else {
SEND_TRACE("UART2 Already Unsubscribed");
}
} else {
adl_atSendResponse(ADL_AT_RSP, "\r\nERROR\r\n");
return;
}
adl_atSendResponse(ADL_AT_RSP, "\r\nOK\r\n");
}
...
bool mcs_run ( u8 Port ){ // using the MultiApp Library start see mcs_init(...)
...
s16 returnValue;
s8 retVal;
char string[50];
...
/* Subscribe to the 'AT+U2' Command*/
SEND_TRACE("Subscribing to the 'AT+U2' Command\r\n");
returnValue = adl_atCmdSubscribe("AT+U2", AtUart2LoopBackCmdHandler, ADL_CMD_TYPE_PARA | 0x0011);
if (returnValue < 0){
wm_sprintf(string, "ERROR: adl_atCmdSubscribe('AT+U2', ...) returned %d\r\n", returnValue);
SEND_TRACE(string);
}
...
/* COMMENT: these lines are taken care of in the above functions
* adl_atCmdCreate("AT+WMFM=0,1,2", FALSE, (adl_atRspHandler_t)NULL, NULL);
* adl_atCmdCreate("AT+IPR=4800\r", ADL_AT_PORT_TYPE(ADL_AT_UART2, FALSE), (adl_atRspHandler_t)NULL, NULL);
* adl_atCmdCreate("AT&W", TRUE, (adl_atRspHandler_t)NULL, NULL);
* uart2FcmHandle = adl_fcmSubscribe(ADL_PORT_UART2, Uart2ControlHandler, Uart2DataHandler);
* uart1FcmHandle = adl_fcmSubscribe(ADL_PORT_UART1, Uart1ControlHandler, Uart1DataHandler);
*/
return TRUE;
}
void mcs_stop ( void ){ // using the MultiApp Library stop see mcs_init(...)
...
/* Unsubscribe from the 'AT+U2' command */
SEND_TRACE("Unsubscribing from 'AT+U2' Command\r\n");
adl_atCmdUnSubscribe ( "AT+U2", AtUart2LoopBackCmdHandler );
...
/* COMMENT: Handle for UART2 is unsubscribed in AtUart2LoopBackCmdHandler*/
/*SEND_TRACE("Unsubscribing UART1 FCM Handle\r\n");
adl_fcmUnsubscribe(uart1FcmHandle);
SEND_TRACE("Unsubscribing UART2 FCM Handle\r\n");
adl_fcmUnsubscribe(uart2FcmHandle);*/
}
void mcs_init ( adl_InitType_e InitType, ascii * PinCode, ma_Element_t * ApplicationData ){
mcs_TraceLevel = ApplicationData->AppTrcID;
...
// Fill application data structure
ApplicationData->AppName = mcs_NameBuffer;
ApplicationData->AppCmd = MCS_CMD_START;
ApplicationData->ObjRange = TELE_OBJECT_FLASH_TEL;
ApplicationData->AppStart = mcs_run;
ApplicationData->AppStop = mcs_stop;
...
}I would appreciate if someone can point out where I may have gone wrong or point me in the right direction i.e. a similar thread.
Thank you.
Francis.