Erik -
DMA library for the KL25Z
Dependents: SimpleDMA_HelloWorld RTOS_SPI spiDMAtest Pinscape_Controller_v1 ... more
Introduction
SimpleDMA is a standard library for different DMA peripherals. Currently the LPC1768, KL46Z and KL25Z are supported. It provided one set of functions for different peripherals. It does not allow for usage of all the advanced functions, partially because the goal was to provide a simple interface, and partially because they are different for different microcontrollers.
Examples
Helloworld: http://mbed.org/users/Sissors/code/SimpleDMA_HelloWorld/
Example in a library (SPI): http://mbed.org/users/Sissors/code/RTOS_SPI/
Revision 8:876f3b55e6f5, committed 2015-01-27
- Comitter:
- marcusbirkin
- Date:
- Tue Jan 27 14:30:18 2015 +0000
- Parent:
- 7:d3be727fa9d2
- Child:
- 9:f7345d41b076
- Commit message:
- Changed length argument in start from int to uint32_t; The length registers are unsigned 32bit not signed.
Changed in this revision
--- a/SimpleDMA.h Fri Jun 27 10:12:27 2014 +0000 +++ b/SimpleDMA.h Tue Jan 27 14:30:18 2015 +0000 @@ -102,7 +102,7 @@ * * @param length - number of BYTES to be moved by the DMA */ -int start(int length); +int start(uint32_t length); /** * Is the DMA channel busy
--- a/SimpleDMA_KL25_46.cpp Fri Jun 27 10:12:27 2014 +0000
+++ b/SimpleDMA_KL25_46.cpp Tue Jan 27 14:30:18 2015 +0000
@@ -25,7 +25,7 @@
}
-int SimpleDMA::start(int length) {
+int SimpleDMA::start(uint32_t length) {
if (auto_channel)
_channel = getFreeChannel();
else
--- a/SimpleDMA_LPC1768.cpp Fri Jun 27 10:12:27 2014 +0000
+++ b/SimpleDMA_LPC1768.cpp Tue Jan 27 14:30:18 2015 +0000
@@ -18,7 +18,7 @@
NVIC_EnableIRQ(DMA_IRQn);
}
-int SimpleDMA::start(int length) {
+int SimpleDMA::start(uint32_t length) {
if (auto_channel)
_channel = getFreeChannel();
else
