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-- | The top-level module for simulation.
package TopSim where
-- import Numini
import GetPut
import I2C
mkTopSim :: Module Empty
mkTopSim = module
{-
ch559_uart_rx <- mkWire
inkplate_uart_rx <- mkWire
usb_uart_rx <- mkWire
hyperbus_rwds_in <- mkWire
hyperbus_dq_in <- mkWire
i2c_scl_in <- mkWire
i2c_sda_in <- mkWire
numini <- mkNumini ch559_uart_rx inkplate_uart_rx usb_uart_rx
hyperbus_rwds_in hyperbus_dq_in i2c_scl_in i2c_sda_in
-}
txSCL <- mkReg 0
txSDA <- mkReg 0
rxSCL <- mkReg 1
rxSDA <- mkReg 1
i2c <- mkI2C rxSCL rxSDA
rules
when True ==> txSCL := i2c.txSCL
when True ==> txSDA := i2c.txSDA
timer :: Reg (Bit 16) <- mkReg 0
rules
"t0000": when (timer == 0x0000) ==> do
i2c.addrReg := 0x01
i2c.dataReg := 0x00
"t0001": when (timer == 0x0001) ==> do
i2c.statusReg := i2c.statusReg { notBusy = True }
"t0022": when (timer == 0x0022) ==> rxSDA := 0
"t0025": when (timer == 0x0025) ==> rxSDA := 1
"advance timer": when True ==> timer := timer + 1
"finish": when (timer == 0x00ff) ==> $finish
{-
"log received values": when True ==> do
result <- i2c.recv.get
$display "recv: " (fshow result)
-}
-- vim: set ft=haskell :
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