From 74dfa9eee109561fb6cbb29c50955447665c0f1c Mon Sep 17 00:00:00 2001
From: Per Lindgren <per.lindgren@ltu.se>
Date: Thu, 24 Dec 2020 00:45:39 +0100
Subject: [PATCH] pmw3389 wip, id works
---
examples/pmw3389.rs | 36 +++++++++++++++++++++++++++++++-----
1 file changed, 31 insertions(+), 5 deletions(-)
diff --git a/examples/pmw3389.rs b/examples/pmw3389.rs
index b1d0c3f..067ba85 100644
--- a/examples/pmw3389.rs
+++ b/examples/pmw3389.rs
@@ -7,7 +7,7 @@ use cortex_m::{
iprintln,
peripheral::{itm::Stim, DWT},
};
-use embedded_hal::spi::MODE_0;
+use embedded_hal::spi::{MODE_0, MODE_1, MODE_2, MODE_3};
// use cortex_m_semihosting::hprintln;
use panic_halt as _;
use rtic::cyccnt::{Instant, U32Ext as _};
@@ -83,8 +83,8 @@ const APP: () = {
// polarity: Polarity::IdleLow,
// phase: Phase::CaptureOnFirstTransition,
// },
- MODE_0,
- stm32f4xx_hal::time::KiloHertz(2000).into(),
+ MODE_3,
+ stm32f4xx_hal::time::KiloHertz(100).into(),
clocks,
);
@@ -94,6 +94,32 @@ const APP: () = {
let id = pmw3389.product_id().unwrap();
iprintln!(stim, "id {}", id);
+ let id = pmw3389.product_id().unwrap();
+ iprintln!(stim, "id {}", id);
+
+ let id = pmw3389
+ .read_register(pmw3389::Register::RevisionId)
+ .unwrap();
+ iprintln!(stim, "rev {}", id);
+
+ let id = pmw3389
+ .read_register(pmw3389::Register::ShutterLower)
+ .unwrap();
+ iprintln!(stim, "lower {}", id);
+
+ let id = pmw3389
+ .read_register(pmw3389::Register::ShutterUpper)
+ .unwrap();
+ iprintln!(stim, "upper {}", id);
+
+ let id = pmw3389.read_register(pmw3389::Register::SROMId).unwrap();
+ iprintln!(stim, "sromid {}", id);
+
+ let id = pmw3389
+ .read_register(pmw3389::Register::InverseProductID)
+ .unwrap();
+ iprintln!(stim, "-id {}", id);
+
// semantically, the monotonic timer is frozen at time "zero" during `init`
// NOTE do *not* call `Instant::now` in this context; it will return a nonsense value
// let now = cx.start; // the start time of the system
@@ -312,10 +338,10 @@ mod pmw3389 {
// self.change_config(Register::CTRL_REG4, scale)
// }
- fn read_register(&mut self, reg: Register) -> Result<u8, E> {
+ pub fn read_register(&mut self, reg: Register) -> Result<u8, E> {
let _ = self.cs.set_low();
- let mut buffer = [reg.addr() | SINGLE | READ, 0];
+ let mut buffer = [reg.addr() & 0x7f, 0];
self.spi.transfer(&mut buffer)?;
let _ = self.cs.set_high();
--
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