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Subversion Repositories i2c_to_wb

[/] [i2c_to_wb/] [trunk/] [sim/] [models/] [i2c_master_model.v] - Diff between revs 2 and 3

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Rev 2	Rev 3
Line 16...	Line 16...
`);`	`);`

`localparam tBUF = 4700;`	`localparam tBUF = 4700;`
`localparam tSU_STA = 4700;`	`localparam tSU_STA = 4700;`
`localparam tSU_DAT = 250;`	`localparam tSU_DAT = 250;`
`localparam tHD_DAT = 0;`	`localparam tHD_DAT = 300;`
`localparam tHD_STA = 4000;`	`localparam tHD_STA = 4000;`
`localparam tLOW = 4700;`	`localparam tLOW = 4700;`
`localparam tHIGH = 4000;`	`localparam tHIGH = 4000;`

`// --------------------------------------------------------------------`	`// --------------------------------------------------------------------`
Line 53...	Line 53...
`begin`	`begin`

`if( LOG_LEVEL > 2 )`	`if( LOG_LEVEL > 2 )`
`$display( "###- %m: I2C start at time %t. ", $time );`	`$display( "###- %m: I2C start at time %t. ", $time );`

`i2c_data_out = 1'b1;`	`// i2c_data_out = 1'b1;`
`i2c_clk_out = 1'b1;`	`// i2c_clk_out = 1'b1;`

`#tBUF;`	`#tBUF;`

`i2c_data_oe = 1'b1;`	`i2c_data_oe = 1'b1;`
`i2c_clk_oe = 1'b1;`	`i2c_clk_oe = 1'b1;`
Line 70...	Line 70...
`end`	`end`

`if( i2c_clk != 1'b1 )`	`if( i2c_clk != 1'b1 )`
`begin`	`begin`
`i2c_clk_out = 1'b1;`	`i2c_clk_out = 1'b1;`
`#tSU_DAT;`	`#tLOW;`
`end`	`end`

`#tSU_STA;`	`#tSU_STA;`
`i2c_data_out = 1'b0;`	`i2c_data_out = 1'b0;`

Line 97...	Line 97...
`end`	`end`

`if( i2c_clk != 1'b1 )`	`if( i2c_clk != 1'b1 )`
`begin`	`begin`
`i2c_clk_out = 1'b1;`	`i2c_clk_out = 1'b1;`
`#tSU_DAT;`	`#tLOW;`
`end`	`end`

`i2c_data_out = 1'b1;`	`i2c_data_out = 1'b1;`
`i2c_clk_out = 1'b1;`	`i2c_clk_out = 1'b1;`

Line 132...	Line 132...
`endtask`	`endtask`


`// --------------------------------------------------------------------`	`// --------------------------------------------------------------------`
`// write_byte`	`// write_byte`
	`reg write_byte_r = 1'b0;`

`task write_byte;`	`task write_byte;`
`input [7:0] data;`	`input [7:0] data;`
`begin`	`begin`

	`write_byte_r = 1'b1;`

`if( LOG_LEVEL > 2 )`	`if( LOG_LEVEL > 2 )`
`$display( "###- %m: I2C write 0x%h at time %t. ", data, $time );`	`$display( "###- %m: I2C write 0x%h at time %t. ", data, $time );`

`#tHD_STA;`	`#tHD_STA;`

Line 167...	Line 171...
`$display( "###- %m: I2C NACK at time %t. ", $time );`	`$display( "###- %m: I2C NACK at time %t. ", $time );`
`else`	`else`
`$display( "###- %m: I2C ACK at time %t. ", $time );`	`$display( "###- %m: I2C ACK at time %t. ", $time );`

`#tHIGH;`	`#tHIGH;`
	`i2c_clk_out = 1'b0;`

	`write_byte_r = 1'b0;`
	`#1;`

`end`	`end`
`endtask`	`endtask`


Line 223...	Line 231...
`i2c_clk_out = 1'b1;`	`i2c_clk_out = 1'b1;`

`if( LOG_LEVEL > 2 )`	`if( LOG_LEVEL > 2 )`
`$display( "###- %m: I2C read 0x%h at time %t. ", i2c_buffer_in, $time );`	`$display( "###- %m: I2C read 0x%h at time %t. ", i2c_buffer_in, $time );`

	`#tHIGH;`
	`i2c_clk_out = 1'b0;`

`end`	`end`
`endtask`	`endtask`


`// --------------------------------------------------------------------`	`// --------------------------------------------------------------------`

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Subversion Repositories i2c_to_wb

[/] [i2c_to_wb/] [trunk/] [sim/] [models/] [i2c_master_model.v] - Diff between revs 2 and 3