-#############################======= Steps to add peripherals =======#######################
-# Step-1: create interface declaration for the peripheral to be added. Remember these are
-# interfaces defined for the pinmux and hence will be opposite to those defined
-# at the peripheral. For eg. the output TX from the UART will be input (method Action)
-# for the pinmux. These changes will have to be done in interface_decl.py
-# Step-2 define the wires that will be required to transfer data from the peripheral interface
-# to the IO cell and vice-versa. Create a mkDWire for each input/output between the
-# the peripheral and the pinmux. Also create an implicit wire of GenericIOType
-# for each cell that can be connected to a each bit from the peripheral.
-# These changes will have to be done in wire_def.py
-# Step-3: create the definitions for each of the methods defined above.
-# These changes will have to be done in interface_decl.py
-############################################################################################
+# ================================== Steps to add peripherals ============
+# Step-1: create interface declaration for the peripheral to be added.
+# Remember these are interfaces defined for the pinmux and hence
+# will be opposite to those defined at the peripheral.
+# For eg. the output TX from the UART will be input (method Action)
+# for the pinmux.
+# These changes will have to be done in interface_decl.py
+# Step-2 define the wires that will be required to transfer data from the
+# peripheral interface to the IO cell and vice-versa. Create a
+# mkDWire for each input/output between the peripheral and the
+# pinmux. Also create an implicit wire of GenericIOType for each cell
+# that can be connected to a each bit from the peripheral.
+# These changes will have to be done in wire_def.py
+# Step-3: create the definitions for each of the methods defined above.
+# These changes will have to be done in interface_decl.py
+# ========================================================================
# default module imports
import os
import sys
import time
+import math
# project module imports
from interface_decl import *
-from interface_def import *
-from params import *
+from interface_def import *
+from params import *
from wire_def import *
from actual_pinmux import *
if not os.path.exists("bsv_src"):
os.makedirs("bsv_src")
-bsv_file=open("./bsv_src/pinmux.bsv","w")
-header='''
+bsv_file = open("./bsv_src/pinmux.bsv", "w")
+
+
+header = '''
/*
- This BSV file has been generated by the PinMux tool available at: <website>.
- Authors: Neel Gala, Luke
- Date of generation: '''+time.strftime("%c")+'''
+ This BSV file has been generated by the PinMux tool available at:
+ https://bitbucket.org/casl/pinmux.
+
+ Authors: Neel Gala, Luke
+ Date of generation: ''' + time.strftime("%c") + '''
*/
package pinmux;
- typedef struct{
- Bit#(1) outputval; // output from core to pad bit7
- Bit#(1) output_en; // output enable from core to pad bit6
- Bit#(1) input_en; // input enable from core to io_cell bit5
- Bit#(1) pullup_en; // pullup enable from core to io_cell bit4
- Bit#(1) pulldown_en; // pulldown enable from core to io_cell bit3
- Bit#(1) drivestrength; // drivestrength from core to io_cell bit2
- Bit#(1) pushpull_en; // pushpull enable from core to io_cell bit1
- Bit#(1) opendrain_en; // opendrain enable form core to io_cell bit0
- } GenericIOType deriving(Eq,Bits,FShow);
-
- interface Ifc_pinmux;
+ typedef struct{
+ Bit#(1) outputval; // output from core to pad bit7
+ Bit#(1) output_en; // output enable from core to pad bit6
+ Bit#(1) input_en; // input enable from core to io_cell bit5
+ Bit#(1) pullup_en; // pullup enable from core to io_cell bit4
+ Bit#(1) pulldown_en; // pulldown enable from core to io_cell bit3
+ Bit#(1) drivestrength; // drivestrength from core to io_cell bit2
+ Bit#(1) pushpull_en; // pushpull enable from core to io_cell bit1
+ Bit#(1) opendrain_en; // opendrain enable form core to io_cell bit0
+ } GenericIOType deriving(Eq,Bits,FShow);
+
+ interface Ifc_pinmux;
'''
-footer='''
- endmodule
+footer = '''
+ endmodule
endpackage
'''
-###############################################
-###=== populating the file with the code ===###
-###############################################
+# ============================================#
+# ==== populating the file with the code =====#
+# ============================================#
# package and interface declaration followed by the generic io_cell definition
bsv_file.write(header)
-bsv_file.write('''
-
- // declare the method which will capture the user pin-mux selection values.
- // The width of the input is dependent on the number of muxes happening per IO.
- // For now we have a generalized width where each IO will have the same number
- // of muxes.''')
-
-for i in range(0,N_IO):
- bsv_file.write(mux_interface.format(i))
-
-bsv_file.write('''
-
- // declare the interface to the IO cells.
- // Each IO cell will have 8 input field (output from pin mux
- // and on output field (input to pinmux)''' );
-for i in range(0,N_IO):
- bsv_file.write('''\n // interface for IO CEll-{0}''')
- bsv_file.write(io_interface.format(i))
-################################################################
-
-#== create method definitions for all peripheral interfaces ==#
-for i in range(0,N_UART):
- bsv_file.write('''
- // interface declaration between UART-{0} and pinmux'''.format(i))
- bsv_file.write(uartinterface_decl.format(i));
+bsv_file.write('''
-for i in range(0,N_SPI):
- bsv_file.write('''
- // interface declaration between SPI-{0} and pinmux'''.format(i))
- bsv_file.write(spiinterface_decl.format(i));
+ // declare the method which will capture the user pin-mux
+ // selection values.The width of the input is dependent on the number
+ // of muxes happening per IO. For now we have a generalized width
+ // where each IO will have the same number of muxes.''')
-for i in range(0,N_TWI):
- bsv_file.write('''
- // interface declaration between TWI-{0} and pinmux'''.format(i))
- bsv_file.write(twiinterface_decl.format(i));
-################################################################
+for cell in muxed_cells:
+ bsv_file.write(mux_interface.format(cell[0],
+ int(math.log(len(cell) - 1, 2))))
-####=== finish interface definition and start module definition===####
bsv_file.write('''
- endinterface
- (*synthesize*)
- module mkpinmux(Ifc_pinmux);
-''')
-######################################################################
-#######################== create wire and registers ===###############
+ // declare the interface to the IO cells.
+ // Each IO cell will have 8 input field (output from pin mux
+ // and on output field (input to pinmux)''')
+for i in range(0, N_IO):
+ bsv_file.write('''\n // interface for IO CEll-{0}''')
+ bsv_file.write(io_interface.format(i))
+# ==============================================================
+
+# == create method definitions for all peripheral interfaces ==#
+for i in range(0, N_UART):
+ bsv_file.write('''
+ // interface declaration between UART-{0} and pinmux'''.format(i))
+ bsv_file.write(uartinterface_decl.format(i))
+
+for i in range(0, N_SPI):
+ bsv_file.write('''
+ // interface declaration between SPI-{0} and pinmux'''.format(i))
+ bsv_file.write(spiinterface_decl.format(i))
+
+for i in range(0, N_TWI):
+ bsv_file.write('''
+ // interface declaration between TWI-{0} and pinmux'''.format(i))
+ bsv_file.write(twiinterface_decl.format(i))
+# ==============================================================
+
+# ===== finish interface definition and start module definition=======
bsv_file.write('''
- // the followins wires capture the pin-mux selection
- // values for each mux assigned to a CELL
+ endinterface
+ (*synthesize*)
+ module mkpinmux(Ifc_pinmux);
''')
-for i in range(0,N_IO):
- bsv_file.write(muxwire.format(i))
-
-
-bsv_file.write('''\n // following wires capture the values to be sent to the IO Cell''')
-for i in range(0,N_IO):
- bsv_file.write(generic_io.format(i))
-
-for i in range(0,N_UART):
- bsv_file.write('''\n // following wires capture the parameters to the IO CELL if uart-{0} is
- // allotted to it'''.format(i))
- bsv_file.write(uartwires.format(i))
+# ====================================================================
-for i in range(0,N_SPI):
- bsv_file.write('''\n // following wires capture the parameters to the IO CELL if spi-{0} is
- // allotted to it'''.format(i))
- bsv_file.write(spiwires.format(i))
-
-for i in range(0,N_TWI):
- bsv_file.write('''\n // following wires capture the parameters to the IO CELL if twi-{0} is
- // allotted to it'''.format(i))
- bsv_file.write(twiwires.format(i))
+# ======================= create wire and registers =================#
+bsv_file.write('''
+ // the followins wires capture the pin-mux selection
+ // values for each mux assigned to a CELL
+''')
+for cell in muxed_cells:
+ bsv_file.write(muxwire.format(cell[0], int(math.log(len(cell) - 1, 2))))
+
+
+bsv_file.write(
+ '''\n // following wires capture the values sent to the IO Cell''')
+for i in range(0, N_IO):
+ bsv_file.write(generic_io.format(i))
+
+for i in range(0, N_UART):
+ bsv_file.write(
+ '''\n // following wires capture signals to IO CELL if uart-{0} is
+ // allotted to it'''.format(i))
+ bsv_file.write(uartwires.format(i))
+
+for i in range(0, N_SPI):
+ bsv_file.write(
+ '''\n // following wires capture signals to IO CELL if spi-{0} is
+ // allotted to it'''.format(i))
+ bsv_file.write(spiwires.format(i))
+
+for i in range(0, N_TWI):
+ bsv_file.write(
+ '''\n // following wires capture signals to IO CELL if twi-{0} is
+ // allotted to it'''.format(i))
+ bsv_file.write(twiwires.format(i))
bsv_file.write("\n")
-######################################################################
-#########################== Actual pinmuxing ==#######################
+# ====================================================================
+# ========================= Actual pinmuxing ========================#
bsv_file.write('''
- /*================= This where the muxing starts for each io-cell=================*/
+ /*====== This where the muxing starts for each io-cell======*/
''')
-bsv_file.write(pinmux);
+bsv_file.write(pinmux)
bsv_file.write('''
- /*================================================================================*/
+ /*============================================================*/
''')
-######################################################################
-################=== interface definitions for each method ===###########
-for i in range(0,N_IO):
- bsv_file.write(mux_interface_def.format(i))
-for i in range(0,N_IO):
- bsv_file.write(io_interface_def.format(i))
-for i in range(0,N_UART):
- bsv_file.write(uartinterface_def.format(i))
-for i in range(0,N_SPI):
- bsv_file.write(spiinterface_def.format(i))
-for i in range(0,N_TWI):
- bsv_file.write(twiinterface_def.format(i))
+# ====================================================================
+# ================= interface definitions for each method =============#
+for cell in muxed_cells:
+ bsv_file.write(mux_interface_def.format(cell[0],
+ int(math.log(len(cell) - 1, 2))))
+for i in range(0, N_IO):
+ bsv_file.write(io_interface_def.format(i))
+for i in range(0, N_UART):
+ bsv_file.write(uartinterface_def.format(i))
+for i in range(0, N_SPI):
+ bsv_file.write(spiinterface_def.format(i))
+for i in range(0, N_TWI):
+ bsv_file.write(twiinterface_def.format(i))
bsv_file.write(footer)
print("BSV file successfully generated: bsv_src/pinmux.bsv")
-########################################################################
+# ======================================================================
+bsv_file.close()
projects / pinmux.git / blobdiff