PWM and output No. 3

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PWM and output No. 3

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lpcware
NXP Employee
NXP Employee
Content originally posted in LPCWare by teslabox on Fri May 23 12:25:57 MST 2014
Hi everyone,

I design a PCB with PWM on LPC1114 and I need to use PWM1.0 (PIO1.1/MAT0 Timer 1 32b), PWM1.1 (PIO1.2/MAT1 Timer 1 32b) and PWM1.3 (PIO1.4/MAT3 Timer 1 32b) outputs.

I am reading an user manual of LPC1114 and I am wondering is it possible to use PWM1.3/MAT3 as PWM output?
In the user manual is written:
Chapter: 21.7.12
Table: 342
Rev.: 12.1


Quote:
PWMEN3 PWM channel 3 enable
Note: It is recommended to use match channel 3 to set
the PWM cycle.

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lpcware
NXP Employee
NXP Employee
Content originally posted in LPCWare by xianghuiwang on Thu May 29 16:40:48 MST 2014
Hi, Teslabox,
It is recommended to use the match registers that are not pinned out to control the PWM cycle length.
MAT3 is not pin out and can not work as PWM output but can be used to set the PWM cycles.
regards,
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