From 54b6ca70a74b3beb1331fd0b0bed28c665ed1f4d Mon Sep 17 00:00:00 2001 From: lonkaars Date: Wed, 29 Mar 2023 20:19:28 +0200 Subject: more debugging WIP --- src/ppu/stm.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'src/ppu') diff --git a/src/ppu/stm.c b/src/ppu/stm.c index fd4a18c..371e557 100644 --- a/src/ppu/stm.c +++ b/src/ppu/stm.c @@ -1,4 +1,23 @@ +#include + #include "ppu/ppu.h" +#include "ppu/internals.h" +#include "stm32/setup.h" void hh_ppu_init() {} void hh_ppu_deinit() {} + +void hh_ppu_vram_dwrite(hh_ppu_addr_t addr, hh_ppu_data_t data) { + // if (!hh_ppu_vram_valid_address(addr)) return; + + uint8_t spi_data[4] = { + (addr & 0xff00) >> 8, + (addr & 0x00ff) >> 0, + (data & 0xff00) >> 8, + (data & 0x00ff) >> 0, + }; + + HAL_SPI_Transmit(&hspi1, spi_data, 4, HAL_MAX_DELAY); + HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, true); + HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, false); +} -- cgit v1.2.3