Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Msp432: DMA-support #2066

Merged
merged 5 commits into from
Aug 31, 2020
Merged

Msp432: DMA-support #2066

Show file tree
Hide file tree
Changes from 3 commits
Commits
Show all changes
5 commits
Select commit Hold shift + click to select a range
064029d
msp432: dma: 1st working version with UART TX
lebakassemmerl Aug 5, 2020
004e424
msp432: dma: implemented transfer_periph_to__mem() and transfer_mem_t…
lebakassemmerl Aug 7, 2020
2d284a9
msp432: uart: implemented receive functionality
lebakassemmerl Aug 7, 2020
eb71fb9
msp432: dma: change raw-memory accesses to the InMemoryRegister model
lebakassemmerl Aug 24, 2020
dcc10c2
msp432: dma: moved clearing interrupt out of unsafe context
lebakassemmerl Aug 28, 2020
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Jump to
Jump to file
Failed to load files.
Diff view
Diff view
15 changes: 14 additions & 1 deletion chips/msp432/src/chip.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@ use core::fmt::Write;
use cortexm4;
use kernel::Chip;

use crate::dma;
use crate::gpio;
use crate::nvic;
use crate::timer;
Expand All @@ -17,6 +18,14 @@ pub struct Msp432 {

impl Msp432 {
pub unsafe fn new() -> Msp432 {
// Setup DMA channels
uart::UART0.set_dma(
&dma::DMA_CHANNELS[uart::UART0.tx_dma_chan],
&dma::DMA_CHANNELS[uart::UART0.rx_dma_chan],
);
dma::DMA_CHANNELS[uart::UART0.tx_dma_chan].set_client(&uart::UART0);
dma::DMA_CHANNELS[uart::UART0.rx_dma_chan].set_client(&uart::UART0);

Msp432 {
mpu: cortexm4::mpu::MPU::new(),
userspace_kernel_boundary: cortexm4::syscall::SysCall::new(),
Expand All @@ -37,7 +46,11 @@ impl Chip for Msp432 {
loop {
if let Some(interrupt) = cortexm4::nvic::next_pending() {
match interrupt {
nvic::USCI_A0 => uart::UART0.handle_interrupt(),
nvic::DMA_INT0 => dma::handle_interrupt(0),
nvic::DMA_INT1 => dma::handle_interrupt(1),
nvic::DMA_INT2 => dma::handle_interrupt(2),
nvic::DMA_INT3 => dma::handle_interrupt(3),
nvic::DMA_ERR => dma::handle_interrupt(-1),
nvic::IO_PORT1 => gpio::handle_interrupt(0),
nvic::IO_PORT2 => gpio::handle_interrupt(1),
nvic::IO_PORT3 => gpio::handle_interrupt(2),
Expand Down