???

1 files changed, 18 insertions, 5 deletions

diff --git a/src/ppu/stm.c b/src/ppu/stm.c
index 7f60aed..146d275 100644
--- a/src/ppu/stm.c
+++ b/src/ppu/stm.c
@@ -5,17 +5,30 @@
 #include "stm32/setup.h"
 
 void hh_ppu_init() {
-	hh_ppu_update_aux((hh_s_ppu_loc_aux) { .sysreset = 1 });
-	hh_ppu_vram_buffer((uint8_t[4]) { 0xff, 0xff, 0xff, 0xff });
-	hh_ppu_flush();
+	// hh_ppu_update_aux((hh_s_ppu_loc_aux) { .sysreset = 1 });
+	// hh_ppu_vram_buffer((uint8_t[4]) { 0xff, 0xff, 0xff, 0xff });
+	// hh_ppu_flush();
 	HAL_Delay(10);
 }
 
 void hh_ppu_deinit() {}
 
+// void hh_ppu_vram_dwrite(uint8_t* data, size_t size) {
+// 	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_SET);
+// 	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_RESET);
+// 	HAL_SPI_Transmit_DMA(&hspi1, data, size);
+// }
+
 void hh_ppu_vram_dwrite(uint8_t* data, size_t size) {
+	// HAL_SPI_Transmit(&hspi1, data, size, HAL_MAX_DELAY);
+	for (size_t i = 0; i < size; i += 4) {
+		if (i+4 > size) break;
+		uint8_t test[4] = { data[i+0], data[i+1], data[i+2], data[i+3], };
+		HAL_SPI_Transmit(&hspi1, test, 4, HAL_MAX_DELAY);
+		// HAL_Delay(100);
+	}
+	HAL_SPI_Transmit(&hspi1, (uint8_t[4]){ 0xff, 0xff, 0xff, 0xff }, 4, HAL_MAX_DELAY);
+	// reset SPI
 	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_SET);
 	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_RESET);
-	HAL_SPI_Transmit_DMA(&hspi1, data, size);
 }
-