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testing to extent DMA buffer to 768 bytes

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iceman1001 2024-01-15 17:36:19 +01:00
parent 3baf5acc6f
commit 73843fd366
2 changed files with 6 additions and 5 deletions
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9
armsrc/BigBuf.c
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@ -92,9 +92,9 @@ uint32_t BigBuf_get_size(void) {
// get the address of the emulator memory. Allocate part of Bigbuf for it, if not yet done // get the address of the emulator memory. Allocate part of Bigbuf for it, if not yet done
uint8_t *BigBuf_get_EM_addr(void) { uint8_t *BigBuf_get_EM_addr(void) {
// not yet allocated // not yet allocated
if (emulator_memory == NULL) if (emulator_memory == NULL) {
emulator_memory = BigBuf_malloc(CARD_MEMORY_SIZE); emulator_memory = BigBuf_calloc(CARD_MEMORY_SIZE);
}
return emulator_memory; return emulator_memory;
} }
@ -366,8 +366,9 @@ void tosend_stuffbit(int b) {
} }
dmabuf16_t *get_dma16(void) { dmabuf16_t *get_dma16(void) {
if (dma_16.buf == NULL) if (dma_16.buf == NULL) {
dma_16.buf = (uint16_t *)BigBuf_malloc(DMA_BUFFER_SIZE * sizeof(uint16_t)); dma_16.buf = (uint16_t *)BigBuf_malloc(DMA_BUFFER_SIZE * sizeof(uint16_t));
}
return &dma_16; return &dma_16;
} }

2
armsrc/BigBuf.h
View file

@ -26,7 +26,7 @@
#define MAX_MIFARE_FRAME_SIZE 18 // biggest Mifare frame is answer to a read (one block = 16 Bytes) + 2 Bytes CRC #define MAX_MIFARE_FRAME_SIZE 18 // biggest Mifare frame is answer to a read (one block = 16 Bytes) + 2 Bytes CRC
#define MAX_MIFARE_PARITY_SIZE 3 // need 18 parity bits for the 18 Byte above. 3 Bytes are enough to store these #define MAX_MIFARE_PARITY_SIZE 3 // need 18 parity bits for the 18 Byte above. 3 Bytes are enough to store these
#define CARD_MEMORY_SIZE 4096 #define CARD_MEMORY_SIZE 4096
#define DMA_BUFFER_SIZE 512 #define DMA_BUFFER_SIZE (512 + 256)
// 8 data bits and 1 parity bit per payload byte, 1 correction bit, 1 SOC bit, 2 EOC bits // 8 data bits and 1 parity bit per payload byte, 1 correction bit, 1 SOC bit, 2 EOC bits
#define TOSEND_BUFFER_SIZE (9 * MAX_FRAME_SIZE + 1 + 1 + 2) #define TOSEND_BUFFER_SIZE (9 * MAX_FRAME_SIZE + 1 + 1 + 2)