kopia lustrzana https://github.com/micropython/micropython
bus/softqspi: Support read in 1 and 4 line modes.
Signed-off-by: Andrew Leech <andrew.leech@planetinnovation.com.au>pull/12722/head
rodzic
0f6a17717e
commit
55ca924bea
|
@ -188,16 +188,28 @@ static int mp_soft_qspi_read_cmd(void *self_in, uint8_t cmd, size_t len, uint32_
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int mp_soft_qspi_read_cmd_qaddr_qdata(void *self_in, uint8_t cmd, uint32_t addr, size_t len, uint8_t *dest) {
|
||||
static int mp_soft_qspi_read_cmd_addr_data(void *self_in, uint8_t cmd, uint32_t addr, size_t len, uint8_t *dest, uint8_t mode) {
|
||||
int ret = 0;
|
||||
mp_soft_qspi_obj_t *self = (mp_soft_qspi_obj_t*)self_in;
|
||||
uint8_t cmd_buf[7] = {cmd};
|
||||
uint8_t addr_len = mp_spi_set_addr_buff(&cmd_buf[1], addr);
|
||||
CS_LOW(self);
|
||||
mp_soft_qspi_transfer(self, 1, cmd_buf, NULL);
|
||||
mp_soft_qspi_qwrite(self, addr_len + 3, &cmd_buf[1]); // 3/4 addr bytes, 1 extra byte (0), 2 dummy bytes (4 dummy cycles)
|
||||
mp_soft_qspi_qread(self, len, dest);
|
||||
if (mode == MP_QSPI_TRANSFER_CMD_ADDR_DATA) {
|
||||
// cmd, address and data on 1 line.
|
||||
// 3 addr bytes, 1 dummy byte (8 dummy cycles x 1 line)
|
||||
mp_soft_qspi_transfer(self, addr_len + 1, &cmd_buf[1], NULL);
|
||||
mp_soft_qspi_transfer(self, len, NULL, dest);
|
||||
} else if (mode == MP_QSPI_TRANSFER_CMD_QADDR_QDATA) {
|
||||
// cmd 1 line, address and data on 4 lines.
|
||||
// 3/4 addr bytes, 1 extra byte (mode: 0), 2 dummy bytes (4 dummy cycles x 4 lines)
|
||||
mp_soft_qspi_qwrite(self, addr_len + 3, &cmd_buf[1]);
|
||||
mp_soft_qspi_qread(self, len, dest);
|
||||
} else {
|
||||
ret = -1;
|
||||
}
|
||||
CS_HIGH(self);
|
||||
return 0;
|
||||
return ret;
|
||||
}
|
||||
|
||||
const mp_qspi_proto_t mp_soft_qspi_proto = {
|
||||
|
@ -205,5 +217,5 @@ const mp_qspi_proto_t mp_soft_qspi_proto = {
|
|||
.write_cmd_data = mp_soft_qspi_write_cmd_data,
|
||||
.write_cmd_addr_data = mp_soft_qspi_write_cmd_addr_data,
|
||||
.read_cmd = mp_soft_qspi_read_cmd,
|
||||
.read_cmd_qaddr_qdata = mp_soft_qspi_read_cmd_qaddr_qdata,
|
||||
.read_cmd_addr_data = mp_soft_qspi_read_cmd_addr_data,
|
||||
};
|
||||
|
|
Ładowanie…
Reference in New Issue