AN3077 datasheet(32/82 Pages) STMICROELECTRONICS

номер детали	AN3077

подробное описание детали	Safety application guide

PDF	82 Pages

Scroll/Zoom	100%

производитель	STMICROELECTRONICS [STMicroelectronics]

домашняя страница	http://www.st.com

Logo

32 / 82 page

Functional safety requirements for application software

AN3077

32/82

DocID16384 Rev 10

Note:

Implementation hint: A single channel of the eTimer is used with a multiplexing of the

internal read back of the different output of the FlexPWM. The read back paths are limited to

six signals, two for each sub-module of the FlexPWM.

Mandatory: The application software must implement software tests for eTimer_0 and

eTimer_1 configurations:

●

FLEXPWM0_SWTEST_REGCRC

●

FLEXPWM1_SWTEST_REGCRC

●

ETIMER0_SWTEST_REGCRC

●

ETIMER1_SWTEST_REGCRC

Note:

Rationale: To verify that the configuration of the modules used by this safety function

adheres to the expected configuration

Mandatory: The application software must write to the output port and then compare the

written value via the read back (See item PWMRB_SWTEST_CMP below).

Note:

Rationale: To verify that written data is what is expected

Figure 7. Single Write PWM Output With Read Back configuration

eTimer

PWM Out Single Write External

Readback Configuration

Flex

PWM

eTimer

PWM Out Single Write Internal

Readback Configuration

Flex

PWM

ETC[x]

n[z]*

* Note: n[z] represents any FlexPWM output.

= Input Pad

= Output Pad

AN3077 датащи(PDF) 32 Page - STMicroelectronics

AN3077 датащи(HTML) 32 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82

датащи скачать

ссылки URL