memory leakage in mqx

adt — Sat, 19 Apr 2014 11:18:40 GMT

Hi All,

I am using mqx4.0.2

codewarrior 10.5

TWRK60F120M

In my project I used nandflash using FFS,usb,& 2 uarts(UART2-PTD2&PTD3),(UART3-PTE4&PTE5).when I used nandflash,I faced the problem of memory leakage & solved it as given in https://community.freescale.com/message/323494#323494.

but without nandflash also I see the memory leakage whenever I send data over uart or receive data from uart.I am not getting where is the problem.

Here is my uart initialization routine-

UART_INIT()

{

MY_ISR_STRUCT_PTR isr_ptr;

isr_ptr = _mem_alloc_zero(sizeof(MY_ISR_STRUCT));

isr_ptr->COUNTER = 0;

PORTE_PCR4 = (uint32_t)((PORTE_PCR4 & (uint32_t)~(uint32_t)(

PORT_PCR_ISF_MASK |/*PORT_PCR_DSE_MASK|*/

PORT_PCR_MUX(0x04)

)) | (uint32_t)(

PORT_PCR_MUX(0x03)

));

PORTE_PCR5 = (uint32_t)((PORTE_PCR5 & (uint32_t)~(uint32_t)(

PORT_PCR_ISF_MASK |

PORT_PCR_MUX(0x04)

)) | (uint32_t)(

PORT_PCR_MUX(0x03)

));

SIM_SCGC4 |= SIM_SCGC4_UART3_MASK;

UART3_BDH = UART_BDH_SBR(0x00); /*115200 baud rate*/

UART3_BDL = UART_BDL_SBR(0x20);

_int_install_isr(INT_UART3_RX_TX, ISR_UART3, isr_ptr);

_bsp_int_init(INT_UART3_RX_TX, 3, 0, TRUE);

_bsp_int_enable(INT_UART3_RX_TX);

}

& isr routine

ISR_UART3(pointer user_isr_ptr)

{

MY_ISR_STRUCT_PTR isr_ptr;

isr_ptr = (MY_ISR_STRUCT_PTR)user_isr_ptr;

isr_ptr->COUNTER++;

/*CHECK FOR RECEIVE DATA REG FLAG*/

if(UART3_S1 & UART_S1_RDRF_MASK)

{

uCInpdata[uICounter]=UART3_D;

}

Re: memory leakage in mqx

Luis_Garabo — Fri, 25 Apr 2014 15:45:41 GMT

Hi adt,

It looks like you did your own UART driver, did you?

Why aren't you using the ittyx: driver which is the one for MQX and the UART with interrupt enabled. It will be easier for you to make that work and go on with your application.

Regards,
Garabo

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