📄 ls_test.psm
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; KCPSM3 Program - Program to test line stores using the Spartan-3E Starter Kit.
;
; Ken Chapman - Xilinx Ltd
;
; Version v1.00 - 26th June 2006
;
; PicoBlaze communicates via the UART to control the value applied to the inputs of
; line stores and enable them for a specified number of clock cycles. The outputs of
; all the line stores are then displayed.
;
;**************************************************************************************
; Port definitions
;**************************************************************************************
;
;
;
CONSTANT LED_port, 80 ;8 simple LEDs
CONSTANT LED0, 01 ; LED 0 - bit0
CONSTANT LED1, 02 ; 1 - bit1
CONSTANT LED2, 04 ; 2 - bit2
CONSTANT LED3, 08 ; 3 - bit3
CONSTANT LED4, 10 ; 4 - bit4
CONSTANT LED5, 20 ; 5 - bit5
CONSTANT LED6, 40 ; 6 - bit6
CONSTANT LED7, 80 ; 7 - bit7
;
;
;UART ports
;
CONSTANT status_port, 00 ;UART status input
CONSTANT tx_half_full, 01 ; Transmitter half full - bit0
CONSTANT tx_full, 02 ; FIFO full - bit1
CONSTANT rx_data_present, 04 ; Receiver data present - bit2
CONSTANT rx_half_full, 08 ; FIFO half full - bit3
CONSTANT rx_full, 10 ; full - bit4
;
CONSTANT UART_read_port, 01 ;UART Rx data input
;
CONSTANT UART_write_port, 40 ;UART Tx data output
;
;
;The first line store input is 18-bits and requires 3 bytes
;to be written to a holding register. Then when required,
;the whole 18-bit value can be stored in the line store
;using a dummy write (data not used) to a forth port.
;
;
CONSTANT line_store_input_L, 01 ;Line Store input bits [7:0]
CONSTANT line_store_input_M, 02 ;Line Store input bits [15:8]
CONSTANT line_store_input_H, 04 ;Line Store input bits [17:16]
CONSTANT line_store_write_en, 08 ;Line Store clock enable (dummy write)
;
;
;
;The first line store 768x24 and requires 3 bytes to be read.
;
CONSTANT line_store1_output_L, 02 ;Line Store output bits [7:0]
CONSTANT line_store1_output_M, 03 ;Line Store output bits [15:8]
CONSTANT line_store1_output_H, 04 ;Line Store output bits [23:16]
;
;
;The second line store 1024x18 and requires 3 bytes to be read.
;
CONSTANT line_store2_output_L, 05 ;Line Store output bits [7:0]
CONSTANT line_store2_output_M, 06 ;Line Store output bits [15:8]
CONSTANT line_store2_output_H, 07 ;Line Store output bits [17:16]
;
;
;The third line store 1280x13 and requires 2 bytes to be read.
;
CONSTANT line_store3_output_L, 08 ;Line Store output bits [7:0]
CONSTANT line_store3_output_H, 09 ;Line Store output bits [12:8]
;
;
;The forth line store is 1280x72 so to make it more manageable it has been
;folded to make it 3 times longer and only 24-bits wide. This requires 3 bytes
;to be read at each 1280 delay tapping point.
;
CONSTANT line_store4a_output_L, 0A ;Line Store output bits [7:0] First tap
CONSTANT line_store4a_output_M, 0B ;Line Store output bits [15:8]
CONSTANT line_store4a_output_H, 0C ;Line Store output bits [23:16]
;
CONSTANT line_store4b_output_L, 0D ;Line Store output bits [31:24] Second tap
CONSTANT line_store4b_output_M, 0E ;Line Store output bits [39:32]
CONSTANT line_store4b_output_H, 0F ;Line Store output bits [47:40]
;
CONSTANT line_store4c_output_L, 10 ;Line Store output bits [55:48] Third tap
CONSTANT line_store4c_output_M, 11 ;Line Store output bits [63:56]
CONSTANT line_store4c_output_H, 12 ;Line Store output bits [71:64]
;
;
;The fifth line store 1536x12 and requires 2 bytes to be read.
;
CONSTANT line_store5_output_L, 13 ;Line Store output bits [7:0]
CONSTANT line_store5_output_H, 14 ;Line Store output bits [11:8]
;
;
;The sixth line store 1920x9 and requires 2 bytes to be read.
;
CONSTANT line_store6_output_L, 15 ;Line Store output bits [7:0]
CONSTANT line_store6_output_H, 16 ;Line Store output bit [8]
;
;
;The seventh line store is 1920x48 so to make it more manageable it has been
;folded to make it 2 times longer and only 24-bits wide. This requires 3 bytes
;to be read at each 1920 delay tapping point.
;
CONSTANT line_store7a_output_L, 17 ;Line Store output bits [7:0] First tap
CONSTANT line_store7a_output_M, 18 ;Line Store output bits [15:8]
CONSTANT line_store7a_output_H, 19 ;Line Store output bits [23:16]
;
CONSTANT line_store7b_output_L, 1A ;Line Store output bits [31:24] Second tap
CONSTANT line_store7b_output_M, 1B ;Line Store output bits [39:32]
CONSTANT line_store7b_output_H, 1C ;Line Store output bits [47:40]
;
;
;**************************************************************************************
; Special Register usage
;**************************************************************************************
;
NAMEREG sF, UART_data ;used to pass data to and from the UART
;
;
;
;**************************************************************************************
;Scratch Pad Memory Locations
;**************************************************************************************
;
CONSTANT step_counter0, 00 ;decimal count of line store write operations
CONSTANT step_counter1, 01
CONSTANT step_counter2, 02
CONSTANT step_counter3, 03
CONSTANT step_counter4, 04
;
CONSTANT test_data_in0, 05 ;24-bit data applied to line store input
CONSTANT test_data_in1, 06
CONSTANT test_data_in2, 07
;
CONSTANT n_count0, 08 ;decimal count cycles to count in command
CONSTANT n_count1, 09
CONSTANT n_count2, 0A
CONSTANT n_count3, 0B
;
;
CONSTANT auto_inc, 0C ;Determines if auto increment is active
;
CONSTANT fast_mode, 0D ;Determines if fast mode is active
;
;UART character strings will be stored in scratch pad memory ending in carriage return.
;A string can be up to 16 characters with the start location defined by this constant.
;
CONSTANT string_start, 30
;
;
;
;**************************************************************************************
;Useful data constants
;**************************************************************************************
;
;
;
;
;ASCII table
;
CONSTANT character_a, 61
CONSTANT character_b, 62
CONSTANT character_c, 63
CONSTANT character_d, 64
CONSTANT character_e, 65
CONSTANT character_f, 66
CONSTANT character_g, 67
CONSTANT character_h, 68
CONSTANT character_i, 69
CONSTANT character_j, 6A
CONSTANT character_k, 6B
CONSTANT character_l, 6C
CONSTANT character_m, 6D
CONSTANT character_n, 6E
CONSTANT character_o, 6F
CONSTANT character_p, 70
CONSTANT character_q, 71
CONSTANT character_r, 72
CONSTANT character_s, 73
CONSTANT character_t, 74
CONSTANT character_u, 75
CONSTANT character_v, 76
CONSTANT character_w, 77
CONSTANT character_x, 78
CONSTANT character_y, 79
CONSTANT character_z, 7A
CONSTANT character_A, 41
CONSTANT character_B, 42
CONSTANT character_C, 43
CONSTANT character_D, 44
CONSTANT character_E, 45
CONSTANT character_F, 46
CONSTANT character_G, 47
CONSTANT character_H, 48
CONSTANT character_I, 49
CONSTANT character_J, 4A
CONSTANT character_K, 4B
CONSTANT character_L, 4C
CONSTANT character_M, 4D
CONSTANT character_N, 4E
CONSTANT character_O, 4F
CONSTANT character_P, 50
CONSTANT character_Q, 51
CONSTANT character_R, 52
CONSTANT character_S, 53
CONSTANT character_T, 54
CONSTANT character_U, 55
CONSTANT character_V, 56
CONSTANT character_W, 57
CONSTANT character_X, 58
CONSTANT character_Y, 59
CONSTANT character_Z, 5A
CONSTANT character_0, 30
CONSTANT character_1, 31
CONSTANT character_2, 32
CONSTANT character_3, 33
CONSTANT character_4, 34
CONSTANT character_5, 35
CONSTANT character_6, 36
CONSTANT character_7, 37
CONSTANT character_8, 38
CONSTANT character_9, 39
CONSTANT character_colon, 3A
CONSTANT character_stop, 2E
CONSTANT character_semi_colon, 3B
CONSTANT character_minus, 2D
CONSTANT character_divide, 2F ;'/'
CONSTANT character_plus, 2B
CONSTANT character_comma, 2C
CONSTANT character_less_than, 3C
CONSTANT character_greater_than, 3E
CONSTANT character_equals, 3D
CONSTANT character_space, 20
CONSTANT character_CR, 0D ;carriage return
CONSTANT character_question, 3F ;'?'
CONSTANT character_dollar, 24
CONSTANT character_exclaim, 21 ;'!'
CONSTANT character_BS, 08 ;Back Space command character
;
;
;
;
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