Example MPC5746R FCCU Alarm State GHS716

はい

********************************************************************************
* File:               main.c
* Owner:            Peter Vlna
* Version:           1.7
* Date:               Oct-10-2017
* Classification: General Business Information
* Brief:          Example contains startup with PLL0 200MHz as system clock
*                  and demonstrates reset triggered on FCCU Alarm state
*                  counter exppire.
********************************************************************************
* Test HW: MPC57xx
* Maskset: 1N83M (cut 2.0B)
* Target : internal_FLASH
* Fsys:     200MHz PLL0 as system clock
********************************************************************************
Revision History:
1.0     Oct-19-2015     Peter Vlna   Initial Version
1.1   Nov-11-2015   Peter Vlna   Added PPL0 200MHz as system clock
1.2   Dec-02-2015   Peter Vlna Added Flash controller init
1.3   Dec-02-2015   Peter Vlna Fixed system clock init
1.4   Feb-07-2017   Peter Vlna SWT0 and SWT1 disabled in startup
1.5    May-31-2017   Peter Vlna Fixed comments in AC6 (CLKOUT)
1.6    Oct-04-2017   Peter Vlna Added PIT + Interrupts
1.7   Oct-05-2017   Peter Vlna FCCU EOUT test in Alarm state with SMC
*******************************************************************************/

yunangong-b1900 · ‎01-08-2019

Hi Peter,

In this example, you are using the functional muxing (MSCR registers) to confiure FCCU EOUT_0/1 pins as below.

SIUL2.MSCR0_255[112].R = 0x6|0x02000000; /* FCCU EOUT_0 , ODC push-pul */
SIUL2.MSCR0_255[115].R = 0x6|0x02000000; /* FCCU EOUT_1 , ODC push-pul */

However, the recommended way to do this configuration is by DCF clients. -- Chapter 1.2.10 DCF_ERROR0_PAD_SELECT DCF client, MPC5746R Reference Manual Addendum, Rev. 2, 10/2016. What's more, in the attached (in RM) "IO_Signal_Description and Input_Multiplexing_Tables", ERRORx is not listed as a muxing function which can be assigned to these potential ERROR OUT pins like PH[0] via SIUL2_MSCR registers.

Best Regards

Yunan

zhouxx · ‎10-28-2019

FCCU EOUT 这个问题，您解决了吗，方便告知下关键点吗