AT91RM9200-CI-002 Atmel, AT91RM9200-CI-002 Datasheet - Page 102

• Manufacturer Part Number: AT91RM9200-CI-002
• Description: IC ARM9 MCU 256 BGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91RM9200-CI-002

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 180MHz
• Connectivity: EBI/EMI, Ethernet, I²C, MMC, SPI, SSC, UART/USART, USB
• Peripherals: POR
• Number Of I /o: 122
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: ROM
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

14.3.3.3
102
AT91RM9200
Using the Service
The first step is to find the address of the open service method AT91F_OpenCtlTempo using
the ROM Entry Service.
Allocate one instance of AT91S_CtlTempo and AT91S_SvcTempo in the application memory
space:
Initialize the AT91S_CtlTempo instance by calling the AT91F_OpenCtlTempo function:
At this stage, the application can use the AT91S_CtlTempo service members.
If the application wants to overload an object member, it can be done now. For example, if
AT91F_CtlTempoCreate(
defined as my_CtlTempoCreate(...), the procedure is as follows:
In most cases, initialize the AT91S_SvcTempo object by calling the AT91F_CtlTempoCreate
method of the AT91S_CtlTempo service:
Start the timeout by calling
parameters, either a callback is started at the end of the countdown or the status of the timeout
is checked by reading the TickTempo member of the svcTempo1 object.
When the application needs another software timer to control a timeout, it:
• Allocates one instance of AT91S_SvcTempo in the application memory space
• Initializes the AT91S_SvcTempo object calling the AT91F_CtlTempoCreate method of the
AT91S_CtlTempo service:
// Allocate the service and the control tempo
AT91S_CtlTempo ctlTempo;
AT91S_SvcTempo svcTempo1;
// Initialize service
pAT91->OpenCtlTempo(&ctlTempo, (void *) &(pAT91->SYSTIMER_DESC));
// Overload AT91F_CtlTempoCreate
ctlTempo.CtlTempoCreate = my_CtlTempoCreate;
// Init the svcTempo1, link it to the AT91S_CtlTempo object
ctlTempo.CtlTempoCreate(&ctlTempo, &svcTempo1);
// Start the timeout
svcTempo1.Start(&svcTempo1,100,0,NULL,NULL);
// Wait for the timeout of 100 (unity depends on the timer programmation)
// No repetition and no callback.
while (svcTempo1.TickTempo);
// Allocate the service
AT91S_SvcTempo svcTempo2;
// Init the svcTempo2, link it to the AT91S_CtlTempo object
ctlTempo.CtlTempoCreate(&ctlTempo, &svcTempo2);
Start
&ctlTempo, &svcTempo1
method of the svcTempo1 object. Depending on the function
) method is to be replaced by the application
1768I–ATARM–09-Jul-09