spi not working on hardware

3 files changed, 26 insertions, 3 deletions

diff --git a/src/main.c b/src/main.c
index 658fc94..d8191b6 100644
--- a/src/main.c
+++ b/src/main.c
@@ -12,7 +12,30 @@ void hh_ppu_vblank_interrupt() {
 #ifdef HH_TARGET_DESKTOP
 	if (g_hh_test_complete) return;
 #endif
-	hh_ppu_vram_dwrite((uint8_t*) HH_PPUINTDEMO_ARR, HH_PPUINTDEMO_LENGTH);
+	// // uint8_t test[4] = { 0x0f, 0x0f, 0xf0, 0xf0 };
+	// uint8_t* test = malloc(4);
+	// test[0] = 0x00;
+	// test[1] = 0x00;
+	// test[2] = 0x00;
+	// test[3] = 0x00;
+	// while (1)
+	// 	hh_ppu_vram_dwrite(test, 4);
+	// return;
+	if (1) {
+		hh_ppu_vram_dwrite((uint8_t*) HH_PPUINTDEMO_ARR, HH_PPUINTDEMO_LENGTH);
+	}
+	if (0) {
+		for (size_t i = 0; i < HH_PPUINTDEMO_LENGTH; i += 4) {
+			if (i+4 > HH_PPUINTDEMO_LENGTH) break;
+			uint8_t test[4] = {
+				HH_PPUINTDEMO_ARR[i+0],
+				HH_PPUINTDEMO_ARR[i+1],
+				HH_PPUINTDEMO_ARR[i+2],
+				HH_PPUINTDEMO_ARR[i+3],
+			};
+			hh_ppu_vram_dwrite(test, 4);
+		}
+	}
 	g_hh_test_complete = true;
 }
 
diff --git a/src/ppu/stm.c b/src/ppu/stm.c
index 18811cf..8292d3c 100644
--- a/src/ppu/stm.c
+++ b/src/ppu/stm.c
@@ -9,7 +9,7 @@ void hh_ppu_deinit() {}
 
 void hh_ppu_vram_dwrite(uint8_t* data, size_t size) {
 	HAL_SPI_Transmit(&hspi1, data, size, HAL_MAX_DELAY);
-	HAL_SPI_Transmit(&hspi1, (uint8_t[4]) { 0xff, 0xff, 0xff, 0xff }, 4, HAL_MAX_DELAY);
+	// reset SPI
 	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, true);
 	HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, false);
 }
diff --git a/src/stm32/setup.c b/src/stm32/setup.c
index b4112d3..b0abe7a 100644
--- a/src/stm32/setup.c
+++ b/src/stm32/setup.c
@@ -133,7 +133,6 @@ void hh_io_gpio_setup() {
   __HAL_RCC_GPIOA_CLK_ENABLE();
   __HAL_RCC_GPIOB_CLK_ENABLE();
 
-  HAL_GPIO_WritePin(GPIOA, GPIO_PIN_9, GPIO_PIN_SET);
 	HAL_GPIO_Init(GPIOA, &(GPIO_InitTypeDef) {
 		.Pin = GPIO_PIN_9,
 		.Mode = GPIO_MODE_OUTPUT_PP,
@@ -165,6 +164,7 @@ void HAL_SPI_MspDeInit(SPI_HandleTypeDef* hspi) {
   if(hspi->Instance != SPI1) return;
 
 	__HAL_RCC_SPI1_CLK_DISABLE();
+	__HAL_RCC_GPIOA_CLK_DISABLE();
 
 	HAL_GPIO_DeInit(HH_IO_SPI_PORT, HH_IO_SPI_PINS);
 }