KL05 位操作出错

gaolang001

位操作出错

//#define LED_R_ON BITBAND_REG(GPIOB_PDOR,8) =0             //#define LED_G_ON BITBAND_REG(GPIOB_PDOR,9) =0             //#define LED_B_ON BITBAND_REG(GPIOB_PDOR,10)=0             //#define LED_R_OFF BITBAND_REG(GPIOB_PDOR,8) =1             //#define LED_G_OFF BITBAND_REG(GPIOB_PDOR,9) =1             //#define LED_B_OFF BITBAND_REG(GPIOB_PDOR,10)=1             //#define LED_R_Toggle BITBAND_REG(GPIOB_PTOR,8) =1             //#define LED_G_Toggle BITBAND_REG(GPIOB_PTOR,9) =1             //#define LED_B_Toggle BITBAND_REG(GPIOB_PTOR,10)=1             我这样操作 但是调试的时候出错了 请前辈指点

阅读全文

FSL_FAE_ConstYu

KL不支持Bitband操作的吧，如果是普通GPIO的话可以参考：https://www.eefocus.com/bbs/article_1280_563878.html

gaolang001

Chapter 17
Bit Manipulation Engine (BME)
17.1 Introduction
The Bit Manipulation Engine (BME) provides hardware support for atomic read-modify-
write memory operations to the peripheral address space in Cortex-M0+ based
microcontrollers. This architectural capability is also known as "decorated storage" as it
defines a mechanism for providing additional semantics for load and store operations to
memory-mapped peripherals beyond just the reading and writing of data values to the
addressed memory locations. In the BME definition, the "decoration", that is, the
additional semantic information, is encoded into the peripheral address used to reference
the memory.

gaolang001

呵呵，手册上这个章节 是讲的什么啊？
不是位带操作啊？

FSL_TICS_Robin

关于位操作KE02倒是有个例程，你参考下官网FRDM-KE02Z板子的驱动函数库KEXX_DRIVERS_V1.0.1_DEVD中
E:\……\kexx_drv_lib_release_r1.0.1\build\cw\ke02\BME_demo例程吧
[url=https://www.freescale.co
m/webapp/sps/site/prod_summary.jsp?code=FRDM-KE02Z&fpsp=1&tab=Design_Tools_Tab]www.freescale.com/webapp/sps/site/prod_summary.jsp[/url]

FSL_FAE_ConstYu

回复第 4 楼 于2013-11-08 08:33:14发表:
呵呵，手册上这个章节 是讲的什么啊？
不是位带操作啊？
 
 
BME和bitband不是一个概念，一个是直接映射到内存的某个地址，一个是作为内核总线和GPIO之间连接的外设模块，和CPU的执行是并行的。
 

wcxfairy

您好！请问你用的KL05用的是什么编译器啊？还有它的外部晶振接多少呢？

gaolang001

回复第 7 楼 于2013-11-22 15:43:50发表:
您好！请问你用的KL05用的是什么编译器啊？还有它的外部晶振接多少呢？
我用KEIL，使用内部低速时钟