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M451
May. 4, 2018
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A/D convert finish, the VALID (EADC_DATn[17], n=0~3) will set to high, but VALID[n]
(EADC_STATUS0[n], n=0~3) will keep low. And the second time A/D converts finish, VALID
(EADC_DDATn[17],n=0~3) will set to high, and VALID (EADC_STATUS0[n], n=0~3) will set to high at
the same time. After VALID (EADC_STATUS [n], n=0~3) is high, user can get the ADC results from
EADC_DATn and EADC_DDATn register.
PDMA request
6.22.5.12
The ADC controller supports PDMA. User can enable PDMAEN (EADC_CTL[11]) and configure
PDMA channel’s source address as EADC_CURDAT (0x4C). After enable PDMAEN and
PDMA channel enable, if any VALID (EADC_DATn[17],n=0~18) is high, ADC controller will send
request to PDMA and PDMA will read EADC_CURDAT to get result. The EADC_CURDAT register is
a shadow register of highest priority EADC_DAT register. The lower number sample module is higher
priority. After PDMA read EADC_CURDAT register, the VAILD of the shadow EADC_DAT register will
be automatically cleared.
Interrupt Sources
6.22.5.13
The A/D converter generates ADIFn (EADC_STATUS2[3:0], n=0~3) at the start of conversion or the
end of conversion decide by INTPOS (EADC_SCTLn[22], n=0~15). If ADCIENn (EADC_CTL[5:2],
n=0~3) is set then conversion end interrupt request ADINTn (n=0~3) is generated.
ADIF0 (EADC_STATUS2[0])
ADCIEN0 (EADC_CTL[2])
ADINT0
ADIF1 (EADC_STATUS2[1])
ADCIEN1 (EADC_CTL[3])
ADINT1
ADIF2 (EADC_STATUS2[2])
ADCIEN2 (EADC_CTL[4])
ADINT2
ADIF3 (EADC_STATUS2[3])
ADCIEN3 (EADC_CTL[5])
ADINT3
ADCMPF0 (EADC_STATUS2[4])
ADCMPIE0 (EADC_CMP0[1])
ADCMPF1 (EADC_STATUS2[5])
ADCMPIE1 (EADC_CMP1[1])
ADCMPF2 (EADC_STATUS2[6])
ADCMPIE2 (EADC_CMP2[1])
ADCMPF3 (EADC_STATUS2[7])
ADCMPIE3 (EADC_CMP3[1])
Figure 6.22-15 A/D Controller Interrupts
Содержание ARM Cortex NuMicro M451 Series
Страница 301: ...M451 May 4 2018 Page 301 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL...
Страница 324: ...M451 May 4 2018 Page 324 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL Figure 6 4 18 Checksum Calculation Flow...
Страница 355: ...M451 May 4 2018 Page 355 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL 2 0 Reserved Reserved...
Страница 625: ...M451 May 4 2018 Page 625 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL 00 5 bits 01 6 bits 10 7 bits 11 8 bits...
Страница 721: ...M451 May 4 2018 Page 721 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL the SCL line 1 0 Reserved Reserved...
Страница 1001: ...M451 May 4 2018 Page 1001 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL LQFP 64L 10x10x1 4 mm footprint 2 0 mm 9 2...
Страница 1002: ...M451 May 4 2018 Page 1002 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL LQFP 64L 7x7x1 4 mm footprint 2 0 mm 9 3...
Страница 1003: ...M451 May 4 2018 Page 1003 of 1006 Rev 2 08 M451 SERIES TECHNICAL REFERENCE MANUAL LQFP 48L 7x7x1 4mm footprint 2 0mm 9 4...