sciNotification doesn't work correctly TMS570LS20216SZWT

Hello Ciro,

The Halcogen generates SCI ISR routins and blank sciNotification function.

1. You use the interrupt mode, but you don't enable the SCI interrupt and give the ISR routine in VIM (in sys_startup.c). When you call sciSend(), it doesn't jump to ISR.

2. You need to add your own code to handle the notification. 

Regards,

QJ

Hi Wang, 

i added the ISR sci1LowLevelInterrupt in sys_startup.c and disabled the SCI interrupt, but the ISR doesn't work and the sciNotification is not called. Following the VIM_init in the sys_startup.c

#define vimRAM ((vimRAM_t *)0xFFF82000U)

static const t_isrFuncPTR s_vim_init[64] =
{
phantomInterrupt,
esmHighInterrupt,
phantomInterrupt,
vPortPreemptiveTick,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
sci1LowLevelInterrupt,
sci1HighLevelInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
adc1Group1Interrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
vPortYeildWithinAPI,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
};

Can you help me please?

Thanks

Can you provide me an example that works, with any notification?

Many thanks

Hi Ciro,

1. The SCI1 Interrupt ISR should be assigned to address 0x38 (offset. It is #13).

#define vimRAM ((vimRAM_t *)0xFFF82000U) /*VIM RAM*/

static const t_isrFuncPTR s_vim_init[] =
{
phantomInterrupt,
esmHighLevelInterrupt, /*0*/
phantomInterrupt,
rtiCompare0Interrupt, /*2*/
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
phantomInterrupt, /* 10 */
phantomInterrupt,
phantomInterrupt,
sci1HighLevelInterrupt, /*13; LIN level0, this one is used in this project */
phantomInterrupt,
phantomInterrupt,
can1HighLevelInterrupt, /*16; CAN1 level0 */
phantomInterrupt,
phantomInterrupt,
phantomInterrupt,
esmLowLevelInterrupt, /*20; ESM low level INT */

....

#2, You also need to enable the interrupt for SCI1

/* enable interrupts */
vimREG->REQMASKSET0 = 1U /*enable*/
| (0U << 1) /*disable*/
| (1U << 2)
| (0U << 3)
| (0U << 4)
| (0U << 5)
| (0U << 6)
| (0U << 7)
| (0U << 8)
| (0U << 9)
| (0U << 10)
| (0U << 11)
| (0U << 12)
| (1U << 13) //lin, SCI1 level0
| (0U << 14)
| (0U << 15)

Regards,

QJ

Hi Ciro,

I don't have example using TX interrupt. I think your project should after changing the VIM setting and enabling the SCI INT.

Regards,

QJ

Hi Wang,

i added your suggestion in my code but the sciNotification is never called by the interrupt. The register CPSR is always in mode 10011. Can you help me please?

Many thanks

Hi Ciro,

Can I have your CCS project? The interrupt priority has to be consistent between the configuration and ISR routine:

1. #pragma INTERRUPT(sci1LowLevelInterrupt, FIQ)

 2.                 | (SYS_FIQ << 13U)         /*13, LIN level0*/          

Regards,

QJ

Hello Wang,

this is my project   8461.LightADC.zip

I think that the problem is the is not enabled the IRQ. In fact if i enable the CPSR - IRQ register enable in debug mode, the sciNotification is called.

Thank you for your support

Hi Ciro,

Good to know the ISR is called. Did you get the transferred data on your PC terminal?

Regards,

QJ

Yes i see the data on the PC terminal. 

Hello,

i solved my problem :)

I added in sys_main.c the keword  "_enable_IRQ();" in order to enable the bit 7 of CSPR. Now the sciNotification is called when i try to send some character on the UART.

Thank you very much for your support.