Mirror/betaflight
1
0
Fork 0
mirror of https://github.com/betaflight/betaflight.git synced 2025-07-24 16:55:36 +03:00
Code Issues Wiki Activity

f4 updates for max7456 dma and a new target (revo variant) with the osd chip

Browse source
This commit is contained in:
nathan 2016-07-15 00:07:03 -07:00
parent 10bb3ec97d
commit 9836eca375
8 changed files with 300 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

18
src/main/drivers/max7456.c
View file

@ -75,6 +75,7 @@ static void max7456_send_dma(void* tx_buffer, void* rx_buffer, uint16_t buffer_s
#endif
// Common to both channels
DMA_StructInit(&DMA_InitStructure);
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)(&(MAX7456_SPI_INSTANCE->DR));
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
@ -82,22 +83,31 @@ static void max7456_send_dma(void* tx_buffer, void* rx_buffer, uint16_t buffer_s
DMA_InitStructure.DMA_BufferSize = buffer_size;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_Priority = DMA_Priority_Low;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
#ifdef MAX7456_DMA_CHANNEL_RX
// Rx Channel
#ifdef STM32F4
DMA_InitStructure.DMA_Memory0BaseAddr = rx_buffer ? (uint32_t)rx_buffer : (uint32_t)(dummy);
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;
#else
DMA_InitStructure.DMA_MemoryBaseAddr = rx_buffer ? (uint32_t)rx_buffer : (uint32_t)(dummy);
DMA_InitStructure.DMA_MemoryInc = rx_buffer ? DMA_MemoryInc_Enable : DMA_MemoryInc_Disable;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
#endif
DMA_InitStructure.DMA_MemoryInc = rx_buffer ? DMA_MemoryInc_Enable : DMA_MemoryInc_Disable;
DMA_Init(MAX7456_DMA_CHANNEL_RX, &DMA_InitStructure);
DMA_Cmd(MAX7456_DMA_CHANNEL_RX, ENABLE);
#endif
// Tx channel
#ifdef STM32F4
DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)tx_buffer; //max7456_screen;
DMA_InitStructure.DMA_DIR = DMA_DIR_MemoryToPeripheral;
#else
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)tx_buffer; //max7456_screen;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
#endif
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_Init(MAX7456_DMA_CHANNEL_TX, &DMA_InitStructure);
DMA_Cmd(MAX7456_DMA_CHANNEL_TX, ENABLE);
@ -247,7 +257,7 @@ void max7456_draw_screen(void) {
max7456_send(MAX7456ADD_DMM, 1);
for (xx = 0; xx < max_screen_size; ++xx) {
max7456_send(MAX7456ADD_DMDI, SCREEN_BUFFER[xx]);
SCREEN_BUFFER[xx] = MAX7456_CHAR(0);
SCREEN_BUFFER[xx] = MAX7456_CHAR(' ');
}
max7456_send(MAX7456ADD_DMDI, 0xFF);
max7456_send(MAX7456ADD_DMM, 0);