Initial proof of concept

drivers/ads1256/driver/src/delay.rs

@@ -0,0 +1,44 @@
+use embedded_hal::delay::DelayNs;
+
+//TODO: Change to maybe async when available instead of always blocking
+pub trait BlockingDelay {
+    /// Delay between spi write and read in a read data command
+    /// Total 50 master clock cycles
+    fn t6_delay(&mut self);
+
+    /// Delay after RREG, WREG, RDATA
+    /// Total 4 master clock cycles
+    fn t11_1_delay(&mut self);
+
+    /// Delay after RDATAC, RESET, SYNC
+    /// Total 24 master clock cycles
+    fn t11_2_delay(&mut self);
+}
+
+pub struct DefaultDelay<DelayT: DelayNs> {
+    delayer: DelayT,
+}
+
+impl<DelayT: DelayNs> DefaultDelay<DelayT> {
+    #[inline(always)]
+    pub const fn new(delayer: DelayT) -> Self {
+        Self { delayer }
+    }
+}
+
+impl<DelayT: DelayNs> BlockingDelay for DefaultDelay<DelayT> {
+    #[inline(always)]
+    fn t6_delay(&mut self) {
+        self.delayer.delay_us(7);
+    }
+
+    #[inline(always)]
+    fn t11_1_delay(&mut self) {
+        self.delayer.delay_us(1);
+    }
+
+    #[inline(always)]
+    fn t11_2_delay(&mut self) {
+        self.delayer.delay_us(4);
+    }
+}