Kinetis MicrocontrollersのトピックRe: Port D bit BME on KE04

Port D bit BME on KE04

jun1 — Wed, 07 Aug 2019 03:31:03 GMT

Hi.

Always thank you for your help.

Please tell me below.

I am using KE04.

See `` How to Use Bit-band and BME on the KE04 and KE06 Subfamilies AN4838 ''
An attempt was made to set bit 2,1,0 of port D to 0 using a macro in BME.h.

As described in “3.5 BME Library” in the above application manual

BME_AND (& GPIOD-> PDOR) = ~ ((1u << 2) | (1u << 1) | (1u << 0));

However, there is no GPIOD definition.

According to the manual, the upper 8 bits of the 32-bit area indicated by the GPIOA address are assigned to port D.

So how do you write the bit set clear for port D in the BME library?

Thank you.

jun

Re: Port D bit BME on KE04

jingpan — Thu, 08 Aug 2019 08:45:40 GMT

Hi jun,

yes, there isn't GPIOD. If you want to set and clear PTD0, PTD1, PTD2, you can write as below

BME_OR(&GPIOA->PDOR) = (0x07<<24);
BME_AND(&GPIOA->PDOR)= ~(0x07<<24);

Regards,

Jing

Re: Port D bit BME on KE04

jun1 — Thu, 08 Aug 2019 10:46:47 GMT

Hi.

I am always grateful for your help.

Oh, yes. That's because it is placed in the upper bits.

well understood.

jun