{"id":135,"date":"2021-04-10T22:45:40","date_gmt":"2021-04-11T03:45:40","guid":{"rendered":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s21-teamc1\/?p=135"},"modified":"2021-04-10T22:45:40","modified_gmt":"2021-04-11T03:45:40","slug":"team-status-report-for-04-10","status":"publish","type":"post","link":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s21-teamc1\/2021\/04\/10\/team-status-report-for-04-10\/","title":{"rendered":"Team Status Report for 04\/10"},"content":{"rendered":"<p>This week\u2019s tasks included APU implementation, PPU bug-fixing, and redesign of the PPU-CPU communication.<\/p>\n<p>For context on the PPU-CPU communication redesign, a team design-review meeting was held last Saturday, which resulted in a redesign to the PPU-CPU communication. During the design phase, Joseph and Andrew had differing ideas on how the PPU-CPU communication and eventual PPU driver should work. Joseph wrote his design in the design review report: The CPU sends video data to the PPU over the AXI BUS accessible via MMIO, following strict timings. However, last weekend the team decided to switch to Andrew\u2019s design: The CPU sends an address to the PPU, which the PPU then uses to DMA-copy video data stored in SDRAM. The main benefits of this include less coupled timings between the CPU and PPU, as well as more intuitive PPU software (with a lot of reusable code from the APU kernel module). Joseph will be implementing this next week, so some scheduling changes needed to be made.<\/p>\n<p>Here are the scheduling changes and brief reasons for their occurrence:<\/p>\n<ul>\n<li>Moved task the \u201cRow Buffers, VRAMs, CPU-&gt;VRAM Interface\u201d. Joseph needed to modify the designs of the CPU-Facing VRAM Interface to be more compatible with the SDRAM. This task is mostly done, but needs to be verified along with the SDRAM DMA next week.<\/li>\n<li>Added a new task for implementing PPU-SDRAM DMA. The goal is to accomplish this next week.<\/li>\n<li>Joseph used 1 Slack Time for the Tile-Engine Implementation. Tile-Engine was difficult, and required setup and debug of a few other interdependent systems.<\/li>\n<li>Created a new APU bug task. Andrew will be working on this next week.<\/li>\n<\/ul>\n<ul>\n<li>Slack time for CPU used in advance for Implement Full Test Game. Required due to push back on APU timeline.<\/li>\n<li>Sprite Engine also pushed back to week of 4\/19.\n<p><a href=\"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s21-teamc1\/wp-content\/uploads\/sites\/133\/2021\/04\/Project-Schedule-Gantt-Chart-4-10-2021.pdf\">Project Schedule Gantt Chart &#8211; 4-10-2021<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>This week\u2019s tasks included APU implementation, PPU bug-fixing, and redesign of the PPU-CPU communication. For context on the PPU-CPU communication redesign, a team design-review meeting was held last Saturday, which resulted in a redesign to the PPU-CPU communication. During the design phase, Joseph and Andrew had differing ideas on how the PPU-CPU communication and eventual &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s21-teamc1\/2021\/04\/10\/team-status-report-for-04-10\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Team Status Report for 04\/10&#8221;<\/span><\/a><\/p>\n","protected":false},"author":411,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[5],"tags":[4],"_links":{"self":[{"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s21-teamc1\/wp-json\/wp\/v2\/posts\/135"}],"collection":[{"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s21-teamc1\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s21-teamc1\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s21-teamc1\/wp-json\/wp\/v2\/users\/411"}],"replies":[{"embeddable":true,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s21-teamc1\/wp-json\/wp\/v2\/comments?post=135"}],"version-history":[{"count":1,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s21-teamc1\/wp-json\/wp\/v2\/posts\/135\/revisions"}],"predecessor-version":[{"id":136,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s21-teamc1\/wp-json\/wp\/v2\/posts\/135\/revisions\/136"}],"wp:attachment":[{"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s21-teamc1\/wp-json\/wp\/v2\/media?parent=135"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s21-teamc1\/wp-json\/wp\/v2\/categories?post=135"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/course.ece.cmu.edu\/~ece500\/projects\/s21-teamc1\/wp-json\/wp\/v2\/tags?post=135"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}