mirror of https://github.com/lnis-uofu/SOFA.git
63 lines
2.3 KiB
C
63 lines
2.3 KiB
C
#include "../common/defs.h"
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/*
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* Scan-chain Test:
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* - Configures directions for control ports
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* +==========+===============+===========+
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* | GPIO | Functionality | Direction |
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* +==========+===============+===========+
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* | GPIO[0] | TEST_EN | input |
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* +----------+---------------+-----------+
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* | GPIO[1] | IO_ISOL_N | input |
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* +----------+---------------+-----------+
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* | GPIO[2] | RESET | input |
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* +----------+---------------+-----------+
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* | GPIO[3] | PROG_RESET | input |
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* +----------+---------------+-----------+
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* | GPIO[11] | SC_TAIL | output |
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* +----------+---------------+-----------+
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* | GPIO[12] | CCFF_HEAD | input |
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* +----------+---------------+-----------+
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* | GPIO[25] | MODE_SWITCH) | input |
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* +----------+---------------+-----------+
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* | GPIO[26] | SC_HEAD | input |
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* +----------+---------------+-----------+
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* | GPIO[35] | CCFF_TAIL | output |
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* +----------+---------------+-----------+
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* | GPIO[36] | CLK | input |
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* +----------+---------------+-----------+
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* | GPIO[37] | PROG_CLK | input |
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* +----------+---------------+-----------+
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*
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* - Configure FPGA data I/Os to be input
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*/
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void main() {
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/*
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IO Control Registers
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| DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
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| 3-bits | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit | 1-bit |
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Output: 0000_0110_0000_1110 (0x1808) = GPIO_MODE_USER_STD_OUTPUT
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| DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
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| 110 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
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Input: 0000_0001_0000_1111 (0x0402) = GPIO_MODE_USER_STD_INPUT_NOPULL
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| DM | VTRIP | SLOW | AN_POL | AN_SEL | AN_EN | MOD_SEL | INP_DIS | HOLDH | OEB_N | MGMT_EN |
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| 001 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
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*/
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// By default all the I/Os are in input mode
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// Only specify those should be in output mode
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reg_mprj_io_11 = GPIO_MODE_USER_STD_OUTPUT;
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reg_mprj_io_35 = GPIO_MODE_USER_STD_OUTPUT;
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/* Apply configuration */
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reg_mprj_xfer = 1;
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while (reg_mprj_xfer == 1);
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}
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