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usbBlaster,ftdiJtagMPSSE: fix alignment for 1 bit len read transaction

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This commit is contained in:
Gwenhael Goavec-Merou
2023-01-04 18:50:13 +01:00
parent 84aa0d14b9
commit 8ee65e7f9d
2 changed files with 6 additions and 3 deletions
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src/ftdiJtagMPSSE.cpp
+3 -2
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@@ -271,7 +271,8 @@ int FtdiJtagMPSSE::writeTDI(uint8_t *tdi, uint8_t *tdo, uint32_t len, bool last)
}
unsigned char last_bit = (tdi) ? *tx_ptr : 0;
bool double_write = true;
// never double write when nb_bit == 0
bool double_write = (nb_bit != 0) ? true : false;
if (nb_bit != 0) {
display("%s read/write %d bit\n", __func__, nb_bit);
@@ -333,7 +334,7 @@ int FtdiJtagMPSSE::writeTDI(uint8_t *tdi, uint8_t *tdo, uint32_t len, bool last)
index++;
}
/* in this case for 1 one it's always bit 7 */
*rx_ptr |= ((c[index] & 0x80) << (7 - nb_bit));
*rx_ptr |= (((c[index]) & 0x80) >> (7 - nb_bit));
} else if (_ch552WA) {
mpsse_write();
ftdi_read_data(_ftdi, c, 1);