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picorv32
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44 Commits

Author SHA1 Message Date
Olof Kindgren 2ceb472178 Bypass picosoc compile order check if PICORV32_REGS is defined. 
Previously, picosoc.v needed to be sourced before picorv32.v to
ensure that the PICORV32_REGS `define (used to select implementation
for the register file) was set to picosoc_regs

This allows for overriding PICORV32_REGS, e.g. by setting it
externally in the EDA tool invocation. In this case, the compile
order between picorv32.v and picosoc.v is not important.

Note: This change will break the safety check if PICORV32_REGS
is defined between sourcing picorv32.v and picosoc.v
 2018-05-18 23:52:31 +02:00
Olof Kindgren c9470e3e04 spiflash: Allow setting firmware from plusarg 2018-05-15 09:53:33 +02:00
Olof Kindgren d26e505251 Fix spiflash_tb 
Update expected two first Flash words to reflect changes in start.s

Add dummy SPI cycles to account for latency
 2018-05-11 22:56:52 +02:00
Larry Doolittle 8b32bc5bd6 Fix miscellaneous typos in documentation 2018-04-17 17:53:08 +02:00
Luke Valenty a0d5f8efd7
add .data and .bss segments to picosoc 
added .data and .bss segments to picosoc firmware linker script so that static variables may be used.
 2018-04-07 18:42:59 -07:00
Clifford Wolf 65f32c38db Fix picosoc hx8kdemo_tb 2017-11-11 19:49:01 +01:00
Clifford Wolf ad08edd2e5 Add PICORV32_REGS mechanism for ASIC sram instantiation 2017-10-01 15:45:46 +02:00
Clifford Wolf 500db14e44 Improve PicoSoC overview.svg 2017-09-22 05:09:03 +02:00
Clifford Wolf 694b9390fd Enable a bunch of PicoRV32 features in PicoSoC 2017-09-22 04:52:44 +02:00
Clifford Wolf 9e5903fbbe Update PicoSoC README 2017-09-21 19:58:55 +02:00
Clifford Wolf ae0e5a6c94 Remove generic PicoSoC testbench 2017-09-21 19:45:41 +02:00
Clifford Wolf 8b5f2aeff3 Merge branch 'master' of github.com:cliffordwolf/picorv32 2017-09-21 19:37:12 +02:00
Clifford Wolf 29b1d0d7de Resize overview.svg 2017-09-21 19:37:04 +02:00
Clifford Wolf 1c66c76c0e Update README.md 2017-09-21 19:35:29 +02:00
Clifford Wolf 211d0e9c98 Add picosoc overview.svg 2017-09-21 19:32:30 +02:00
Clifford Wolf ebc4d1c4a1 Update README.md 2017-09-21 18:53:54 +02:00
Clifford Wolf 45bd9b81ea Improve picosoc performance.{py,png} 2017-09-21 18:46:09 +02:00
Clifford Wolf 0c9dce7bc2 Add picosoc performance.{py,png} 2017-09-21 18:40:38 +02:00
Clifford Wolf 559cd8db78 Improve PicoSoC example firmware 2017-09-21 16:00:19 +02:00
Clifford Wolf c06ba38113 Add PicoSoC spimem Dual I/O support 2017-09-21 15:50:50 +02:00
Clifford Wolf c00811e8e4 Improve PicoSoC example firmware 2017-09-20 23:53:53 +02:00
Clifford Wolf dea9b88249 Fix bug in PicoSoC spimemio 2017-09-20 23:44:16 +02:00
Clifford Wolf 51436b1c50 PicoSoC QSPI DDR progress 2017-09-20 20:17:27 +02:00
Clifford Wolf 7639e6ebac PicoSoC QSPI and XIP now working (tested in hardware) 2017-09-19 15:32:41 +02:00
Clifford Wolf 2cc1256ce7 Improve PicoSoC demo firmware 2017-09-18 00:43:38 +02:00
Clifford Wolf 506cda5ee6 Update picosoc README.md 2017-09-16 22:40:53 +02:00
Clifford Wolf dabebeb008 Improve PicoSoC demo firmware (read flash ID is working now) 2017-09-16 22:08:05 +02:00
Clifford Wolf 76124b8649 Removed UB from picosoc demo firmware 2017-09-15 19:55:22 +02:00
Clifford Wolf 797c21e95c Improve PicoSoC demo firmware 2017-09-15 16:28:19 +02:00
Clifford Wolf cfd4933272 Switch PicoSoC firmware to C 2017-09-15 15:35:44 +02:00
Clifford Wolf 48f729d13c Update PicoSoC hx8kdemo 2017-09-15 15:34:45 +02:00
Clifford Wolf 66638dcee0 Improve picosoc firmware build process 2017-09-15 15:33:20 +02:00
Clifford Wolf d087b01bb5 Update picosoc/hx8kdemo_tb.v 2017-09-15 14:48:13 +02:00
Clifford Wolf 48b13daef2 Update picosoc memory map 2017-09-15 14:47:50 +02:00
Clifford Wolf 6ade29cce3 Add Cypress S25FL128L datasheet link to picosoc/spiflash.v 2017-09-12 22:46:57 +02:00
Clifford Wolf 99f0cafd19 Add simple UART to PicoSoC 2017-08-11 19:30:53 +02:00
Clifford Wolf febb4b1318 Improve and cleanup picosoc firmware 2017-08-11 16:15:07 +02:00
Clifford Wolf 78f2f5efd2 Add support for QSPI DDR mode, Add SPI MEMIO config reg 2017-08-11 15:57:42 +02:00
Clifford Wolf 53b175d0fb Add spimemio QSPI support 2017-08-11 15:02:31 +02:00
Clifford Wolf 89ad9fc85a Fix bug in picosoc spimemio and some cleanups in hx8kdemo 2017-08-08 12:07:17 +02:00
Clifford Wolf 8821696748 Major rewrite of picosoc spimemio core 2017-08-07 22:36:58 +02:00
Clifford Wolf ff7855900d Refactor picosoc flash_io interfaces 2017-08-07 16:27:57 +02:00
Clifford Wolf db2222ec02 Refactor picosoc code 2017-08-07 15:13:27 +02:00
Clifford Wolf caef4e3753 Rename "spiflash" example to "picosoc" 2017-08-07 13:38:07 +02:00